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2586ps?avr?06/2013 features ? high performance, low power avr ? 8-bit microcontroller ? advanced risc architecture ? 120 powerful instructions ? most single clock cycle execution ? 32 x 8 general purpose working registers ? fully static operation ? non-volatile program and data memories ? 2/4/8k bytes of in-system programmable program memory flash ? endurance: 10,000 write/erase cycles ? 128/256/512 bytes in-system programmable eeprom ? endurance: 100,000 write/erase cycles ? 128/256/512 bytes internal sram ? programming lock for sel f-programming flash progra m and eeprom data security ? peripheral features ? 8-bit timer/counter with prescaler and two pwm channels ? 8-bit high speed timer/counter with separate prescaler ? 2 high frequency pwm outputs with separate output compare registers ? programmable dead time generator ? usi ? universal serial interface with start condition detector ? 10-bit adc ? 4 single ended channels ? 2 differential adc channel pairs with programmable gain (1x, 20x) ? temperature measurement ? programmable watchdog timer with separate on-chip oscillator ? on-chip analog comparator ? special microcontroller features ? debugwire on-chip debug system ? in-system programmable via spi port ? external and internal interrupt sources ? low power idle, adc noise reduction, and power-down modes ? enhanced power-on reset circuit ? programmable brown-out detection circuit ? internal calibrated oscillator ? i/o and packages ? six programmable i/o lines ? 8-pin pdip, 8-pin soic, 20-pad qfn/mlf, and 8-pin tssop (only attiny45/v) ? operating voltage ? 1.8 - 5.5v for attiny25v/45v/85v ? 2.7 - 5.5v for attiny25/45/85 ? speed grade ? attiny25v/45v/85v: 0 ? 4 mhz @ 1.8 - 5.5v, 0 - 10 mhz @ 2.7 - 5.5v ? attiny25/45/85: 0 ? 10 mhz @ 2.7 - 5.5v, 0 - 20 mhz @ 4.5 - 5.5v ? industrial temperature range ? low power consumption ? active mode: ? 1 mhz, 1.8v: 300 a ? power-down mode: ? 0.1 a at 1.8v atmel 8-bit avr microcontroller with 2/4/8k bytes in-system programmable flash attiny25/v / attiny45/v / attiny85/v summary rev. 2586ps?avr?06/2013
2 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 1. pin configurations figure 1-1. pinout attiny25/45/85 1.1 pin descriptions 1.1.1 vcc supply voltage. 1.1.2 gnd ground. 1.1.3 port b (pb5:pb0) port b is a 6-bit bi-directional i/o port with internal pull- up resistors (selected for each bi t). the port b output buffers have symmetrical drive characteristics with both high sink and source capability. as inputs, port b pins that are externally pulled low will source current if the pull-up resistor s are activated. the port b pins are tri-stated when a reset condition becomes active, even if the clock is not running. 1 2 3 4 8 7 6 5 (pcint5/reset/adc0/dw) pb5 (pcint3/xtal1/clki/oc1b/adc3) pb3 (pcint4/xtal2/clko/oc1b/adc2) pb4 gnd vcc pb2 (sck/usck/scl/adc1/t0/int0/pcint2) pb1 (miso/do/ain1/oc0b/oc1a/pcint1) pb0 (mosi/di/sda/ain0/oc0a/oc1a/aref/pcint0) pdip/soic/tssop 1 2 3 4 5 qfn/mlf 15 14 13 12 11 20 19 18 17 16 6 7 8 9 10 dnc dnc gnd dnc dnc dnc dnc dnc dnc dnc note: bottom pad should be soldered to ground. dnc: do not connect note: tssop only for attiny45/v (pcint5/reset/adc0/dw) pb5 (pcint3/xtal1/clki/oc1b/adc3) pb3 dnc dnc (pcint4/xtal2/clko/oc1b/adc2) pb4 vcc pb2 (sck/usck/scl/adc1/t0/int0/pcint2) dnc pb1 (miso/do/ain1/oc0b/oc1a/pcint1) pb0 (mosi/di/sda/ain0/oc0a/oc1a/aref/pcint0)
3 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 port b also serves the functions of various spec ial features of the atti ny25/45/85 as listed in ?alternate functions of port b? on page 60 . on attiny25, the programmable i/o ports pb3 and pb4 (pins 2 and 3) are exchanged in attiny15 compatibility mode for supporting the backward compatibility with attiny15. 1.1.4 reset reset input. a low le vel on this pin for longer than the minimum pulse le ngth will generate a reset, even if the clock is not running and provided the reset pin has not bee n disabled. the minimum pulse length is given in table 21-4 on page 165 . shorter pulses are not guaranteed to generate a reset. the reset pin can also be used as a (weak) i/o pin.
4 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 2. overview the attiny25/45/85 is a low-power cmos 8-bit microcont roller based on the avr enhanced risc architecture. by executing powerful instructions in a single clock cycle, the attiny25/45/85 achieves throughputs approaching 1 mips per mhz allowing the system designer to opt imize power consumption versus processing speed. 2.1 block diagram figure 2-1. block diagram the avr core combines a rich instruction set with 32 general purpose working registers. all 32 registers are directly connected to the ar ithmetic logic unit (alu), allowing two independent regi sters to be accessed in one single instruction executed in one clock cycle. the result ing architecture is more c ode efficient wh ile achieving throughputs up to ten times faster th an conventional cisc microcontrollers. program counter calibrated internal oscillator watchdog timer stack pointer program flash sram mcu control register general purpose registers instruction register timer/ counter0 serial universal interface timer/ counter1 instruction decoder data dir. reg.port b data register port b programming logic timing and control mcu status register status register alu port b drivers pb[0:5] vcc gnd control lines 8-bit databus z adc / analog comparator interrupt unit data eeprom oscillators y x reset
5 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 the attiny25/45/85 provides the following features: 2/ 4/8k bytes of in-system pr ogrammable flash, 128/256/512 bytes eeprom, 128/256/256 bytes sram, 6 general purpose i/o li nes, 32 general purpose working registers, one 8-bit timer/counter with compare modes, one 8-bit high spee d timer/counter, universal serial interface, internal and external interrupts, a 4-channel, 10-bit adc, a pr ogrammable watchdog timer with internal oscillator, and three software selectable po wer saving modes. idle mode stops the cp u while allowing the sram, timer/counter, adc, analog comparator, and interrupt system to continue functioning. power-down mode saves the register con- tents, disabling all chip functions un til the next interrupt or hardware reset. adc nois e reduction mode stops the cpu and all i/o modules except adc, to mini mize switching noise during adc conversions. the device is manufactured using atmel?s high density non- volatile memory technology. the on-chip isp flash allows the program memory to be re-programmed in-system through an spi serial interface, by a conventional non-volatile memory programmer or by an on-chip boot code running on the avr core. the attiny25/45/85 avr is supported wit h a full suite of program and system development tools including: c com- pilers, macro assemblers, program debugger/simulators and evaluation kits.
6 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 3. about 3.1 resources a comprehensive set of development tools, application notes and datasheet s are available for download on http://www.atmel.com/avr. 3.2 code examples this documentation contains simple co de examples that briefly show how to use various parts of the device. these code examples assume that the part specific header file is included before compilation. be aware that not all c compiler vendors include bit definitions in the header files and interrupt handling in c is compiler dependent. please confirm with the c compile r documentation for more details. for i/o registers located in the extended i/o map, ?in?, ?o ut?, ?sbis?, ?sbic?, ?cbi?, and ?sbi? instructions must be replaced with instructions that allow access to extended i/o. typica lly, this means ?lds? and ?sts? combined with ?sbrs?, ?sbrc?, ?sbr?, and ?c br?. note that not all avr devices include an extended i/o map. 3.3 capacitive touch sensing atmel qtouch library provides a simple to use solution for touch sensitive interfac es on atmel avr microcon- trollers. the qtouch library includes support for qtouch ? and qmatrix ? acquisition methods. touch sensing is easily added to any application by linki ng the qtouch library and using the application program- ming interface (api) of the library to define the touch channels and sensors. the applicati on then calls the api to retrieve channel information and determine the state of the touch sensor. the qtouch library is free and can be downloaded from the atmel website. for more information and details of implementation, refer to the qtouch library user guide ? also available from the atmel website. 3.4 data retention reliability qualification results show that the projected data retention failure ra te is much less than 1 ppm over 20 years at 85c or 100 years at 25c.
7 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 4. register summary note: 1. for compatibility with future devices, reserved bits shou ld be written to zero if accesse d. reserved i/o memory addresse s address name bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 page 0x3f sreg i t h s v n z c page 8 0x3e sph ? ? ? ? ? ? sp9 sp8 page 11 0x3d spl sp7 sp6 sp5 sp4 sp3 sp2 sp1 sp0 page 11 0x3c reserved ? 0x3b gimsk ? int0 pcie ? ? ? ? ? page 51 0x3a gifr ? intf0 pcif ? ? ? ? ? page 52 0x39 timsk ? ocie1a ocie1b ocie0a ocie0b toie1 toie0 ? pages 81 , 102 0x38 tifr ? ocf1a ocf1b ocf0a ocf0b tov1 tov0 ? page 81 0x37 spmcsr ? ? rsig ctpb rflb pgwrt pgers spmen page 145 0x36 reserved ? 0x35 mcucr bods pud se sm1 sm0 bodse isc01 isc00 pages 37 , 51 , 64 0x34 mcusr ? ? ? ? wdrf borf extrf porf page 44 , 0x33 tccr0b foc0a foc0b ? ? wgm02 cs02 cs01 cs00 page 79 0x32 tcnt0 timer/counter0 page 80 0x31 osccal oscillator calibration register page 31 0x30 tccr1 ctc1 pwm1a com1a1 com1a0 cs13 cs12 cs11 cs10 pages 89 , 100 0x2f tcnt1 timer/counter1 pages 91 , 102 0x2e ocr1a timer/counter1 output compare register a pages 91 , 102 0x2d ocr1c timer/counter1 output compare register c pages 91 , 102 0x2c gtccr tsm pwm1b com1b1 com1b0 foc1b foc1a psr1 psr0 pages 77 , 90 , 101 0x2b ocr1b timer/counter1 output compare register b page 92 0x2a tccr0a com0a1 com0a0 com0b1 com0b0 ? wgm01 wgm00 page 77 0x29 ocr0a timer/counter0 ? output compare register a page 80 0x28 ocr0b timer/counter0 ? output compare register b page 81 0x27 pllcsr lsm ? ? ? ? pcke plle plock pages 94 , 103 0x26 clkpr clkpce ? ? ? clkps3 clkps2 clkps1 clkps0 page 32 0x25 dt1a dt1ah3 dt1ah2 dt1ah1 dt 1ah0 dt1al3 dt1al2 dt1al1 dt1al0 page 107 0x24 dt1b dt1bh3 dt1bh2 dt1bh1 dt 1bh0 dt1bl3 dt1bl2 dt1bl1 dt1bl0 page 107 0x23 dtps1 - - - - - - dtps11 dtps10 page 106 0x22 dwdr dwdr[7:0] page 140 0x21 wdtcr wdif wdie wdp3 wdce wde wdp2 wdp1 wdp0 page 45 0x20 prr ? prtim1 prtim0 prusi pradc page 36 0x1f eearh eear8 page 20 0x1e eearl eear7 eear6 eear5 eear4 eear3 eear2 eear1 eear0 page 21 0x1d eedr eeprom data register page 21 0x1c eecr ? ? eepm1 eepm0 eerie eempe eepe eere page 21 0x1b reserved ? 0x1a reserved ? 0x19 reserved ? 0x18 portb ? ? portb5 portb4 portb3 portb2 portb1 portb0 page 64 0x17 ddrb ? ? ddb5 ddb4 ddb3 ddb2 ddb1 ddb0 page 64 0x16 pinb ? ? pinb5 pinb4 pinb3 pinb2 pinb1 pinb0 page 64 0x15 pcmsk ? ? pcint5 pcint4 pcint3 pcint2 pcint1 pcint0 page 52 0x14 didr0 ? ? adc0d adc2d adc3d adc1d ain1d ain0d pages 121 , 138 0x13 gpior2 general purpose i/o register 2 page 10 0x12 gpior1 general purpose i/o register 1 page 10 0x11 gpior0 general purpose i/o register 0 page 10 0x10 usibr usi buffer register page 115 0x0f usidr usi data register page 115 0x0e usisr usisif usioif usipf usidc usicnt3 usicnt2 usicnt1 usicnt0 page 115 0x0d usicr usisie usioie usiwm1 usiwm0 usics1 usics0 usiclk usitc page 116 0x0c reserved ? 0x0b reserved ? 0x0a reserved ? 0x09 reserved ? 0x08 acsr acd acbg aco aci acie ? acis1 acis0 page 120 0x07 admux refs1 refs0 adlar refs2 mux3 mux2 mux1 mux0 page 134 0x06 adcsra aden adsc adate adif adie adps2 adps1 adps0 page 136 0x05 adch adc data register high byte page 137 0x04 adcl adc data register low byte page 137 0x03 adcsrb bin acme ipr ? ? adts2 adts1 adts0 pages 120 , 137 0x02 reserved ? 0x01 reserved ? 0x00 reserved ?
8 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 should never be written. 2. i/o registers within the address range 0x00 - 0x1f are directly bit-accessible using the sbi and cbi instructions. in these registers, the value of single bits can be ch ecked by using the sbis and sbic instructions. 3. some of the status flags are cleared by writing a logical one to them. note that, unlike most other avrs, the cbi and sbi instructions will only operation the specif ied bit, and can therefore be used on r egisters containing such status flags. the cbi and sbi instructions work wit h registers 0x00 to 0x1f only.
9 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 5. instruction set summary mnemonics operands description operation flags #clocks arithmetic and logic instructions add rd, rr add two registers rd ? rd + rr z,c,n,v,h 1 adc rd, rr add with carry two registers rd ? rd + rr + c z,c,n,v,h 1 adiw rdl,k add immediate to word rdh:rdl ? rdh:rdl + k z,c,n,v,s 2 sub rd, rr subtract two registers rd ? rd - rr z,c,n,v,h 1 subi rd, k subtract constant from register rd ? rd - k z,c,n,v,h 1 sbc rd, rr subtract with carry two registers rd ? rd - rr - c z,c,n,v,h 1 sbci rd, k subtract with carry constant from reg. rd ? rd - k - c z,c,n,v,h 1 sbiw rdl,k subtract immediate from word rdh:rdl ? rdh:rdl - k z,c,n,v,s 2 and rd, rr logical and registers rd ?? rd ? rr z,n,v 1 andi rd, k logical and register and constant rd ? rd ?? k z,n,v 1 or rd, rr logical or registers rd ? rd v rr z,n,v 1 ori rd, k logical or register and constant rd ?? rd v k z,n,v 1 eor rd, rr exclusive or registers rd ? rd ? rr z,n,v 1 com rd one?s complement rd ? 0xff ? rd z,c,n,v 1 neg rd two?s complement rd ? 0x00 ? rd z,c,n,v,h 1 sbr rd,k set bit(s) in register rd ? rd v k z,n,v 1 cbr rd,k clear bit(s) in register rd ? rd ? (0xff - k) z,n,v 1 inc rd increment rd ? rd + 1 z,n,v 1 dec rd decrement rd ? rd ? 1 z,n,v 1 tst rd test for zero or minus rd ? rd ? rd z,n,v 1 clr rd clear register rd ? rd ? rd z,n,v 1 ser rd set register rd ? 0xff none 1 branch instructions rjmp k relative jump pc ?? pc + k + 1 none 2 ijmp indirect jump to (z) pc ? z none 2 rcall k relative subroutine call pc ? pc + k + 1 none 3 icall indirect call to (z) pc ? znone3 ret subroutine return pc ? stack none 4 reti interrupt return pc ? stack i 4 cpse rd,rr compare, skip if equal if (rd = rr) pc ?? pc + 2 or 3 none 1/2/3 cp rd,rr compare rd ? rr z, n,v,c,h 1 cpc rd,rr compare with carry rd ? rr ? c z, n,v,c,h 1 cpi rd,k compare register with immediate rd ? k z, n,v,c,h 1 sbrc rr, b skip if bit in register cleared if (rr(b)=0) pc ? pc + 2 or 3 none 1/2/3 sbrs rr, b skip if bit in register is set if (rr(b)=1) pc ? pc + 2 or 3 none 1/2/3 sbic p, b skip if bit in i/o register cleared if (p(b)=0) pc ? pc + 2 or 3 none 1/2/3 sbis p, b skip if bit in i/o register is set if (p(b)=1) pc ? pc + 2 or 3 none 1/2/3 brbs s, k branch if status flag set if (sreg(s) = 1) then pc ? pc+k + 1 none 1/2 brbc s, k branch if status flag cleared if (sreg(s) = 0) then pc ? pc+k + 1 none 1/2 breq k branch if equal if (z = 1) then pc ? pc + k + 1 none 1/2 brne k branch if not equal if (z = 0) then pc ? pc + k + 1 none 1/2 brcs k branch if carry set if (c = 1) then pc ? pc + k + 1 none 1/2 brcc k branch if carry cleared if (c = 0) then pc ? pc + k + 1 none 1/2 brsh k branch if same or higher if (c = 0) then pc ? pc + k + 1 none 1/2 brlo k branch if lower if (c = 1) then pc ? pc + k + 1 none 1/2 brmi k branch if minus if (n = 1) then pc ? pc + k + 1 none 1/2 brpl k branch if plus if (n = 0) then pc ? pc + k + 1 none 1/2 brge k branch if greater or equal, signed if (n ? v= 0) then pc ? pc + k + 1 none 1/2 brlt k branch if less than zero, signed if (n ? v= 1) then pc ? pc + k + 1 none 1/2 brhs k branch if half carry flag set if (h = 1) then pc ? pc + k + 1 none 1/2 brhc k branch if half carry flag cleared if (h = 0) then pc ? pc + k + 1 none 1/2 brts k branch if t flag set if (t = 1) then pc ? pc + k + 1 none 1/2 brtc k branch if t flag cleared if (t = 0) then pc ? pc + k + 1 none 1/2 brvs k branch if overflow flag is set if (v = 1) then pc ? pc + k + 1 none 1/2 brvc k branch if overflow flag is cleared if (v = 0) then pc ? pc + k + 1 none 1/2 brie k branch if interrupt enabled if ( i = 1) then pc ? pc + k + 1 none 1/2 brid k branch if interrupt disabled if ( i = 0) then pc ? pc + k + 1 none 1/2 bit and bit-test instructions sbi p,b set bit in i/o register i/o(p,b) ? 1none2 cbi p,b clear bit in i/o register i/o(p,b) ? 0none2 lsl rd logical shift left rd(n+1) ? rd(n), rd(0) ? 0 z,c,n,v 1 lsr rd logical shift right rd(n) ? rd(n+1), rd(7) ? 0 z,c,n,v 1 rol rd rotate left through carry rd(0) ? c,rd(n+1) ? rd(n),c ? rd(7) z,c,n,v 1 ror rd rotate right through carry rd(7) ? c,rd(n) ? rd(n+1),c ? rd(0) z,c,n,v 1 asr rd arithmetic shift right rd(n) ? rd(n+1), n=0..6 z,c,n,v 1
10 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 swap rd swap nibbles rd(3..0) ? rd(7..4),rd(7..4) ? rd(3..0) none 1 bset s flag set sreg(s) ? 1 sreg(s) 1 bclr s flag clear sreg(s) ? 0 sreg(s) 1 bst rr, b bit store from register to t t ? rr(b) t 1 bld rd, b bit load from t to register rd(b) ? tnone1 sec set carry c ? 1c1 clc clear carry c ? 0 c 1 sen set negative flag n ? 1n1 cln clear negative flag n ? 0 n 1 sez set zero flag z ? 1z1 clz clear zero flag z ? 0 z 1 sei global interrupt enable i ? 1i1 cli global interrupt disable i ?? 0 i 1 ses set signed test flag s ? 1s1 cls clear signed test flag s ? 0 s 1 sev set twos complement overflow. v ? 1v1 clv clear twos complement overflow v ? 0 v 1 set set t in sreg t ? 1t1 clt clear t in sreg t ? 0 t 1 seh set half carry flag in sreg h ? 1h1 clh clear half carry flag in sreg h ? 0 h 1 data transfer instructions mov rd, rr move between registers rd ? rr none 1 movw rd, rr copy register word rd+1:rd ? rr+1:rr none 1 ldi rd, k load immediate rd ? knone1 ld rd, x load indirect rd ? (x) none 2 ld rd, x+ load indirect and post-inc. rd ? (x), x ? x + 1 none 2 ld rd, - x load indirect and pre-dec. x ? x - 1, rd ? (x) none 2 ld rd, y load indirect rd ? (y) none 2 ld rd, y+ load indirect and post-inc. rd ? (y), y ? y + 1 none 2 ld rd, - y load indirect and pre-dec. y ? y - 1, rd ? (y) none 2 ldd rd,y+q load indirect with displacement rd ? (y + q) none 2 ld rd, z load indirect rd ? (z) none 2 ld rd, z+ load indirect and post-inc. rd ? (z), z ? z+1 none 2 ld rd, -z load indirect and pre-dec. z ? z - 1, rd ? (z) none 2 ldd rd, z+q load indirect with displacement rd ? (z + q) none 2 lds rd, k load direct from sram rd ? (k) none 2 st x, rr store indirect (x) ?? rr none 2 st x+, rr store indirect and post-inc. (x) ?? rr, x ? x + 1 none 2 st - x, rr store indirect and pre-dec. x ? x - 1, (x) ? rr none 2 st y, rr store indirect (y) ? rr none 2 st y+, rr store indirect and post-inc. (y) ? rr, y ? y + 1 none 2 st - y, rr store indirect and pre-dec. y ? y - 1, (y) ? rr none 2 std y+q,rr store indirect with displacement (y + q) ? rr none 2 st z, rr store indirect (z) ? rr none 2 st z+, rr store indirect and post-inc. (z) ? rr, z ? z + 1 none 2 st -z, rr store indirect and pre-dec. z ? z - 1, (z) ? rr none 2 std z+q,rr store indirect with displacement (z + q) ? rr none 2 sts k, rr store direct to sram (k) ? rr none 2 lpm load program memory r0 ? (z) none 3 lpm rd, z load program memory rd ? (z) none 3 lpm rd, z+ load program memory and post-inc rd ? (z), z ? z+1 none 3 spm store program memory (z) ? r1:r0 none in rd, p in port rd ? pnone1 out p, rr out port p ? rr none 1 push rr push register on stack stack ? rr none 2 pop rd pop register from stack rd ? stack none 2 mcu control instructions nop no operation none 1 sleep sleep (see specific descr. for sleep function) none 1 wdr watchdog reset (see specific descr. for wdr/timer) none 1 break break for on-chip debug only none n/a mnemonics operands description operation flags #clocks
11 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 6. ordering information notes: 1. for speed vs. supply voltage, see section 21.3 ?speed? on page 163 . 2. all pb-free, halide-free, fully green, an d comply with european directive for restri ction of hazardous substances (rohs). 3. code indicators: h = nipdau lead finish, u/n = matte tin, r = tape & reel. 4. can also be supplied in wafer form. contact your local atmel sales office for ordering information and minimum quantities. 5. for characteristics, see ?appendix a ? specification at 105 ? c?. 6. for characteristics, see ?appendix b ? specification at 125 ? c?. 6.1 attiny25 speed (mhz) (1) supply voltage (v) temperature range package (2) ordering code (3) 10 1.8 ? 5.5 industrial (-40 ? c to +85 ? c) (4) 8p3 attiny25v-10pu 8s2 attiny25v-10su attiny25v-10sur attiny25v-10sh attiny25v-10shr s8s1 attiny25v-10ssu attiny25v-10ssur ATTINY25V-10SSH ATTINY25V-10SSHr 20m1 attiny25v-10mu attiny25v-10mur industrial (-40 ? c to +105 ? c) (5) 8s2 attiny25v-10sn attiny25v-10snr s8s1 attiny25v-10ssn attiny25v-10ssnr industrial (-40 ? c to +125 ? c) (6) 20m1 attiny25v-10mf attiny25v-10mfr 20 2.7 ? 5.5 industrial (-40 ? c to +85 ? c) (4) 8p3 attiny25-20pu 8s2 attiny25-20su attiny25-20sur attiny25-20sh attiny25-20shr s8s1 attiny25-20ssu attiny25-20ssur attiny25-20ssh attiny25-20sshr 20m1 attiny25-20mu attiny25-20mur industrial (-40 ? c to +105 ? c) (5) 8s2 attiny25-20sn attiny25-20snr s8s1 attiny25-20ssn attiny25-20ssnr industrial (-40 ? c to +125 ? c) (6) 20m1 attiny25-20mf attiny25-20mfr package types 8p3 8-lead, 0.300" wide, plastic dual inline package (pdip) 8s2 8-lead, 0.208" wide, plastic gull -wing small outline (eiaj soic) s8s1 8-lead, 0.150" wide, plastic gull -wing small outline (jedec soic) 20m1 20-pad, 4 x 4 x 0.8 mm body, quad flat no-lead/micro lead frame package (qfn/mlf)
12 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 notes: 1. for speed vs. supply voltage, see section 21.3 ?speed? on page 163 . 2. all packages are pb-free, halide-free and fully green and they co mply with the european directive for restriction of hazard- ous substances (rohs). 3. code indicators: ? h: nipdau lead finish ? u: matte tin ? r: tape & reel 4. these devices can also be supplied in wafer form. please contact your local atmel sales office for detailed ordering informa- tion and minimum quantities. 6.2 attiny45 speed (mhz) (1) supply voltage (v) temperature range package (2) ordering code (3) 10 1.8 ? 5.5 industrial (-40 ? c to +85 ? c) (4) 8p3 attiny45v-10pu 8s2 attiny45v-10su attiny45v-10sur attiny45v-10sh attiny45v-10shr 8x attiny45v-10xu attiny45v-10xur 20m1 attiny45v-10mu attiny45v-10mur 20 2.7 ? 5.5 industrial (-40 ? c to +85 ? c) (4) 8p3 attiny45-20pu 8s2 attiny45-20su attiny45-20sur attiny45-20sh attiny45-20shr 8x attiny45-20xu attiny45-20xur 20m1 attiny45-20mu attiny45-20mur package types 8p3 8-lead, 0.300" wide, plastic dual inline package (pdip) 8s2 8-lead, 0.208" wide, plastic gull -wing small outline (eiaj soic) 8x 8-lead, 4.4 mm wide, plastic thin shrink small outline package (tssop) 20m1 20-pad, 4 x 4 x 0.8 mm body, quad flat no-lead/micro lead frame package (qfn/mlf)
13 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 notes: 1. for speed vs. supply voltage, see section 21.3 ?speed? on page 163 . 2. all packages are pb-free, halide-free and fully green and they co mply with the european directive for restriction of hazard- ous substances (rohs). 3. code indicators: ? h: nipdau lead finish ? u: matte tin ? r: tape & reel 4. these devices can also be supplied in wafer form. please contact your local atmel sales office for detailed ordering informa- tion and minimum quantities. 6.3 attiny85 speed (mhz) (1) supply voltage (v) temperature range package (2) ordering code (3) 10 1.8 ? 5.5 industrial (-40 ? c to +85 ? c) (4) 8p3 attiny85v-10pu 8s2 attiny85v-10su attiny85v-10sur attiny85v-10sh attiny85v-10shr 20m1 attiny85v-10mu attiny85v-10mur 20 2.7 ? 5.5 industrial (-40 ? c to +85 ? c) (4) 8p3 attiny85-20pu 8s2 attiny85-20su attiny85-20sur attiny85-20sh attiny85-20shr 20m1 attiny85-20mu attiny85-20mur package types 8p3 8-lead, 0.300" wide, plastic dual inline package (pdip) 8s2 8-lead, 0.208" wide, plastic gull -wing small outline (eiaj soic) 20m1 20-pad, 4 x 4 x 0.8 mm body, quad flat no-lead/micro lead frame package (qfn/mlf)
14 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 7. packaging information 7.1 8p3 2325 orchard parkway san jose, ca 95131 title drawing no. r rev. 8p3 , 8-lead, 0.300" wide body, plastic dual in-line package (pdip) 01/09/02 8p3 b d d1 e e1 e l b2 b a2 a 1 n ea c b3 4 plcs top view side view end view common dimensions (unit of measure = inches) symbol min nom max note notes: 1. this drawing is for general information only; refer to jedec drawing ms-001, variation ba for additional information. 2. dimensions a and l are measured with the package seated in jedec seating plane gauge gs-3. 3. d, d1 and e1 dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.010 inch. 4. e and ea measured with the leads constrained to be perpendicular to datum. 5. pointed or rounded lead tips are preferred to ease insertion. 6. b2 and b3 maximum dimensions do not include dambar protrusions. dambar protrusions shall not exceed 0.010 (0.25 mm). a 0.210 2 a2 0.115 0.130 0.195 b 0.014 0.018 0.022 5 b2 0.045 0.060 0.070 6 b3 0.030 0.039 0.045 6 c 0.008 0.010 0.014 d 0.355 0.365 0.400 3 d1 0.005 3 e 0.300 0.310 0.325 4 e1 0.240 0.250 0.280 3 e 0.100 bsc ea 0.300 bsc 4 l 0.115 0.130 0.150 2
15 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 7.2 8s2 title drawing no. gpc rev. package drawing contact: packagedrawings@atmel.com 8s2 stn f 8s2, 8-lead, 0.208? body, plastic small outline package (eiaj) 4/15/08 common dimensions (unit of measure = mm) symbol min nom max note notes: 1. this drawing is for general information only; refer to eiaj drawing edr-7320 for additional information. 2. mismatch of the upper and lower dies and resin burrs aren't included. 3. determines the true geometric position. 4. values b,c apply to plated terminal. the standard thickness of the plating layer shall measure between 0.007 to .021 mm. a 1.70 2.16 a1 0.05 0.25 b 0.35 0.48 4 c 0.15 0.35 4 d 5.13 5.35 e1 5.18 5.40 2 e 7.70 8.26 l 0.51 0.85 0 8 e 1.27 bsc 3 1 1 n n e e top view t o p v i e w c c e1 e 1 end view e n d v i e w a a b b l l a1 a 1 e e d d side view s i d e v i e w
16 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 7.3 s8s1 2325 orchard parkway san jose, ca 95131 title drawing no. r rev. s8s1 , 8-lead, 0.150" wide body, plastic gull wing small outline (jedec soic) 7/28/03 s8s1 a common dimensions (unit of measure = mm) symbol min nom max note notes: 1. this drawing is for general information only; refer to jedec drawing ms-012 for proper dimensions, tolerances, datums,e tc. e 5.79 6.20 e1 3.81 3.99 a 1.35 1.75 a1 0.1 0.25 d 4.80 4.98 c 0.17 0.25 b 0.31 0.51 l 0.4 1.27 e 1.27 bsc 0 o 8 o top view side view end view 1 n c a a1 b l e d e1 e
17 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 7.4 8x title drawing no. r rev. note: these drawings are for general information only. refer to jedec drawing mo-153ac. 2325 orchard parkway san jose, ca 95131 4/14/05 8x , 8-lead, 4.4 mm body width, plastic thin shrink small outline package (tssop) 8x a common dimensions (unit of measure = mm) symbol min nom max note a 1.05 1.10 1.20 a1 0.05 0.10 0.15 b 0.25 ? 0.30 c ? 0.127 ? d 2.90 3.05 3.10 e1 4.30 4.40 4.50 e 6.20 6.40 6.60 e 0.65 typ l 0.50 0.60 0.70 ? 0 o ? 8 o c c a a b b l l a1 a 1 d side view top view end view e e 1 1 e1 e 1 e ? ?
18 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 7.5 20m1 2325 orchard parkway san jose, ca 95131 title drawing no. r rev. 20m1 , 20-pad, 4 x 4 x 0.8 mm body, lead pitch 0.50 mm, b 20m1 10/27/04 2.6 mm exposed pad, micro lead frame package (mlf) a 0.70 0.75 0.80 a1 ? 0.01 0.05 a2 0.20 ref b 0.18 0.23 0.30 d 4.00 bsc d2 2.45 2.60 2.75 e 4.00 bsc e2 2.45 2.60 2.75 e 0.50 bsc l 0.35 0.40 0.55 side view pin 1 id pin #1 notch (0.20 r) bottom view top view note: reference jedec standard mo-220, fig . 1 (saw singulation) wggd-5. common dimensions (unit of measure = mm) symbol min nom max note d e e a2 a1 a d2 e2 0.08 c l 1 2 3 b 1 2 3
19 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 8. errata 8.1 errata attiny25 the revision letter in this section refers to the revision of the attiny25 device. 8.1.1 rev d ? f no known errata. 8.1.2 rev b ? c ? eeprom read may fail at low supply voltage / low clock frequency 1. eeprom read may fail at low supp ly voltage / low clock frequency trying to read eeprom at low clock frequencies a nd/or low supply voltage may result in invalid data. problem fix/workaround do not use the eeprom when clock frequency is below 1m hz and supply vo ltage is below 2v . if operating fre- quency can not be raised above 1mhz then supply voltage should be more than 2v. similarly, if supply voltage can not be raised above 2v then operating frequency should be more than 1mhz. this feature is known to be temperature dependent but it has not been characterised. guidelines are given for room temperature, only. 8.1.3 rev a not sampled. 8.2 errata attiny45 the revision letter in this section refers to the revision of the attiny45 device. 8.2.1 rev f ? g no known errata 8.2.2 rev d ? e ? eeprom read may fail at low supply voltage / low clock frequency 1. eeprom read may fail at low supp ly voltage / low clock frequency trying to read eeprom at low clock frequencies a nd/or low supply voltage may result in invalid data. problem fix/workaround do not use the eeprom when clock frequency is below 1m hz and supply vo ltage is below 2v . if operating fre- quency can not be raised above 1mhz then supply voltage should be more than 2v. similarly, if supply voltage can not be raised above 2v then operating frequency should be more than 1mhz. this feature is known to be temperature dependent but it has not been characterised. guidelines are given for room temperature, only.
20 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 8.2.3 rev b ? c ? pll not locking ? eeprom read from ap plication code does not wo rk in lock bit mode 3 ? eeprom read may fail at low supply voltage / low clock frequency ? timer counter 1 pwm output generation on oc1b- xoc1b does not work correctly 1. pll not locking when at frequencies below 6.0 mhz, the pll will not lock problem fix / workaround when using the pll, run at 6.0 mhz or higher. 2. eeprom read from applic ation code does not work in lock bit mode 3 when the memory lock bits lb2 and lb1 are programmed to mode 3, eeprom read does not work from the application code. problem fix/work around do not set lock bit protection mode 3 when th e application code needs to read from eeprom. 3. eeprom read may fail at low supp ly voltage / low clock frequency trying to read eeprom at low clock frequencies a nd/or low supply voltage may result in invalid data. problem fix/workaround do not use the eeprom when clock frequency is below 1m hz and supply vo ltage is below 2v . if operating fre- quency can not be raised above 1mhz then supply voltage should be more than 2v. similarly, if supply voltage can not be raised above 2v then operating frequency should be more than 1mhz. this feature is known to be temperature dependent but it has not been characterised. guidelines are given for room temperature, only. 4. timer counter 1 pwm output generation on oc1b ? xoc1b does not work correctly timer counter1 pwm output oc1b-xoc1b does not work correctly. only in the case when the control bits, com1b1 and com1b0 are in the same mode as com1 a1 and com1a0, respectively, the oc1b-xoc1b out- put works correctly. problem fix/work around the only workaround is to use same control setting on co m1a[1:0] and com1b[1:0] co ntrol bits, see table 14- 4 in the data sheet. the problem has been fixed for tiny45 rev d. 8.2.4 rev a ? too high power down power consumption ? debugwire looses communication when single stepping into interrupts ? pll not locking ? eeprom read from ap plication code does not wo rk in lock bit mode 3 ? eeprom read may fail at low supply voltage / low clock frequency 1. too high power down power consumption three situations will lead to a too high power down power consumption. these are: ? an external clock is selected by fuses, but the i/o port is still en abled as an output. ? the eeprom is read before entering power down. ? vcc is 4.5 volts or higher. problem fix / workaround
21 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 ? when using external clock, avoid setting the clock pin as output. ? do not read the eeprom if power down power cons umption is important. ? use vcc lower than 4.5 volts. 2. debugwire looses communication when single stepping into interrupts when receiving an interr upt during single stepp ing, debugwire will loose communication. problem fix / workaround ? when singlestepping, disable interrupts. ? when debugging interrupts, use breakpoints within the interrupt routine, and run into the interrupt. 3. pll not locking when at frequencies below 6.0 mhz, the pll will not lock problem fix / workaround when using the pll, run at 6.0 mhz or higher. 4. eeprom read from applic ation code does not work in lock bit mode 3 when the memory lock bits lb2 and lb1 are programmed to mode 3, eeprom read does not work from the application code. problem fix/work around do not set lock bit protection mode 3 when th e application code needs to read from eeprom. 5. eeprom read may fail at low supp ly voltage / low clock frequency trying to read eeprom at low clock frequencies a nd/or low supply voltage may result in invalid data. problem fix/workaround do not use the eeprom when clock frequency is below 1m hz and supply vo ltage is below 2v . if operating fre- quency can not be raised above 1mhz then supply voltage should be more than 2v. similarly, if supply voltage can not be raised above 2v then operating frequency should be more than 1mhz. this feature is known to be temperature dependent but it has not been characterized. guidelines are given for room temperature, only.
22 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 8.3 errata attiny85 the revision letter in this section refers to the revision of the attiny85 device. 8.3.1 rev b ? c no known errata. 8.3.2 rev a ? eeprom read may fail at low supply voltage / low clock frequency 1. eeprom read may fail at low supp ly voltage / low clock frequency trying to read eeprom at low clock frequencies a nd/or low supply voltage may result in invalid data. problem fix/workaround do not use the eeprom when clock frequency is below 1m hz and supply vo ltage is below 2v . if operating fre- quency can not be raised above 1mhz then supply voltage should be more than 2v. similarly, if supply voltage can not be raised above 2v then operating frequency should be more than 1mhz. this feature is known to be temperature dependent but it has not been characterised. guidelines are given for room temperature, only.
23 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 9. datasheet revision history 9.1 rev. 2586p-06/13 9.2 rev. 2586o-02/13 updated ordering codes on page 11 , page 12 , and page 13 . 9.3 rev. 2586n-04/11 1. added: ? section ?capacitive touch sensing? on page 6 . 2. updated: ? document template. ? removed ?preliminary? on front page. all devices now final and in production. ? section ?limitations? on page 36 . ? program example on page 49 . ? section ?overview? on page 122 . ? table 17-4 on page 135 . ? section ?limitations of debugwire? on page 140 . ? section ?serial programming algorithm? on page 151 . ? table 21-7 on page 166 . ? eeprom errata on pages 19 , 19 , 20 , 21 , and 22 ? ordering information on pages 11 , 12 , and 13 . 9.4 rev. 2586m-07/10 1. clarified section 6.4 ?clock output buffer? on page 31 . 2. added ordering codes -sn and -snr for attiny25 extended temperature. 9.5 rev. 2586l-06/10 1. added: ? tssop for attiny45 in ?features? on page 1 , pinout figure 1-1 on page 2 , ordering information in section 6.2 ?attiny45? on page 12 , and packaging information in section 7.4 ?8x? on page 17 ? table 6-11, ?capacitance of low-freq uency crystal oscillator,? on page 29 ? figure 22-36 on page 191 and figure 22-37 on page 191 , typical characteristics plots for bandgap voltage vs. v cc and temperature ? extended temperature in section 6.1 ?attiny25? on page 11 , ordering information ? tape & reel part numbers in ordering information, in section 6.1 ?attiny25? on page 11 and section 6.2 ?attiny45? on page 12 2. updated: ? ?features? on page 1 , removed preliminary from attiny25 ? section 8.4.2 ?code example? on page 44 ? ?pcmsk ? pin change mask register? on page 52 , bit descriptions 1. updated description of ?eearh ? eeprom address register? and ?eearl ? eeprom address register? on page 20 .
24 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 ? ?tccr1 ? timer/counter1 control register? on page 89 and ?gtccr ? general timer/counter1 control register? on page 90 , com bit descriptions clarified ? section 20.3.2 ?calibration bytes? on page 150 , frequencies (8 mhz, 6.4 mhz) ? table 20-11, ?minimum wait delay before writing the next flash or eeprom location,? on page 153 , value for t wd_erase ? table 20-16, ?high-voltage serial programming in struction set for attiny25/45/85,? on page 158 ? table 21-1, ?dc characteristics. t a = -40 ? c to +85 ? c,? on page 161 , notes adjusted ? table 21-11, ?serial programming characteristics, t a = -40 ? c to +85 ? c, v cc = 1.8 - 5.5v (unless otherwise noted),? on page 170 , added t sliv ? bit syntax throughout the datasheet, e.g. from cs02:0 to cs0[2:0]. 9.6 rev. 2586k-01/08 1. updated document template. 2. added sections: ? ?data retention? on page 6 ? ?low level interrupt? on page 49 ? ?device signature imprint table? on page 149 3. updated sections: ? ?internal pll for fast peripheral clock generation - clkpck? on page 24 ? ?system clock and clock options? on page 23 ? ?internal pll in attiny15 compatibility mode? on page 24 ? ?sleep modes? on page 34 ? ?software bod disable? on page 35 ? ?external interrupts? on page 49 ? ?timer/counter1 in pwm mode? on page 97 ? ?usi ? universal serial interface? on page 108 ? ?temperature measurement? on page 133 ? ?reading lock, fuse and signature data from software? on page 143 ? ?program and data memory lock bits? on page 147 ? ?fuse bytes? on page 148 ? ?signature bytes? on page 150 ? ?calibration bytes? on page 150 ? ?system and reset characteristics? on page 165 4. added figures: ? ?reset pin output voltage vs. sink current (v cc = 3v)? on page 184 ? ?reset pin output voltage vs. sink current (v cc = 5v)? on page 185 ? ?reset pin output voltage vs. source current (v cc = 3v)? on page 185 ? ?reset pin output voltage vs. source current (v cc = 5v)? on page 186 5. updated figure: ? ?reset logic? on page 39 6. updated tables: ? ?start-up times for internal calibra ted rc oscillator clock? on page 28 ? ?start-up times for internal calibrated rc os cillator clock (in attiny15 mode)? on page 28
25 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 ? ?start-up times for the 128 khz internal oscillator? on page 28 ? ?compare mode select in pwm mode? on page 86 ? ?compare mode select in pwm mode? on page 98 ? ?dc characteristics. t a = -40 ? c to +85 ? c? on page 161 ? ?calibration accuracy of intern al rc oscillator? on page 164 ? ?adc characteristics? on page 167 7. updated code example in section: ? ?write? on page 17 8. updated bit descriptions in: ? ?mcucr ? mcu control register? on page 37 ? ?bits 7:6 ? com0a[1:0]: compare match output a mode? on page 77 ? ?bits 5:4 ? com0b[1:0]: compare match output b mode? on page 77 ? ?bits 2:0 ? adts[2:0]: adc auto trigger source? on page 138 ? ?spmcsr ? store program memory control and status register? on page 145 . 9. updated description of feature ?eeprom read may fa il at low supply voltage / low clock frequency? in sections: ? ?errata attiny25? on page 19 ? ?errata attiny45? on page 19 ? ?errata attiny85? on page 22 10. updated package description in sections: ? ?attiny25? on page 11 ? ?attiny45? on page 12 ? ?attiny85? on page 13 11. updated package drawing: ? ?s8s1? on page 16 12. updated order codes for: ? ?attiny25? on page 11 9.7 rev. 2586j-12/06 1. updated ?low power consumption? on page 1 . 2. updated description of instruction length in ?architectural overview? . 3. updated flash size in ?in-system re-programmable flash program memory? on page 15 . 4. updated cross-references in sections ?atomic byte programming? , ?erase? and ?write? , starting on page 17 . 5. updated ?atomic byte programming? on page 17 . 6. updated ?internal pll for fast peripheral clo ck generation - clkpck? on page 24 . 7. replaced single clocking system figure with two: figure 6-2 and figure 6-3 . 8. updated table 6-1 on page 25 , table 6-13 on page 30 and table 6-6 on page 27 . 9. updated ?calibrated internal oscillator? on page 27 . 10. updated table 6-5 on page 26 . 11. updated ?osccal ? oscillator calibration register? on page 31 . 12. updated ?clkpr ? clock prescale register? on page 32 .
26 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 9.8 rev. 2586i-09/06 13. updated ?power-down mode? on page 35 . 14. updated ?bit 0? in ?prr ? power reduction register? on page 38 . 15. added footnote to table 8-3 on page 46 . 16. updated table 10-5 on page 63 . 17. deleted ?bits 7, 2? in ?mcucr ? mcu control register? on page 64 . 18. updated and moved section ?timer/counter 0 prescaler and clock sources?, now located on page 66 . 19. updated ?timer/counter1 initialization for asynchronous mode? on page 86 . 20. updated bit description in ?pllcsr ? pll control and status register? on page 94 and ?pllcsr ? pll control and st atus register? on page 103 . 21. added recommended maximum frequency in ?prescaling and conversion timing? on page 125 . 22. updated figure 17-8 on page 129 . 23. updated ?temperature measurement? on page 133 . 24. updated table 17-3 on page 134 . 25. updated bit r/w descriptions in: ?timsk ? timer/counter interrupt mask register? on page 81 , ?tifr ? timer/counter interrupt flag register? on page 81 , ?timsk ? timer/counter interrupt mask register? on page 92 , ?tifr ? timer/counter interrupt flag register? on page 93 , ?pllcsr ? pll control and status register? on page 94 , ?timsk ? timer/counter interrupt mask register? on page 102 , ?tifr ? timer/counter interrupt flag register? on page 103 , ?pllcsr ? pll control and status register? on page 103 and ?didr0 ? digital input disable register 0? on page 138 . 26. added limitation to ?limitations of debugwire? on page 140 . 27. updated ?dc characteristics? on page 161 . 28. updated table 21-7 on page 166 . 29. updated figure 21-6 on page 171 . 30. updated table 21-12 on page 171 . 31. updated table 22-1 on page 177 . 32. updated table 22-2 on page 177 . 33. updated table 22-30 , table 22-31 and table 22-32 , starting on page 188 . 34. updated table 22-33 , table 22-34 and table 22-35 , starting on page 189 . 35. updated table 22-39 on page 192 . 36. updated table 22-46 , table 22-47 , table 22-48 and table 22-49 . 1. all characterization data moved to ?electrical characteristics? on page 161 . 2. all register descriptions are gathered up in seperate sections in the end of each chapter. 3. updated table 11-3 on page 78 , table 11-5 on page 79 , table 11-6 on page 80 and table 20-4 on page 148 . 4. updated ?calibrated internal oscillator? on page 27 . 5. updated note in table 7-1 on page 34 . 6. updated ?system control and reset? on page 39 . 7. updated register description in ?i/o ports? on page 53 .
27 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 9.9 rev. 2586h-06/06 9.10 rev. 2586g-05/06 9.11 rev. 2586f-04/06 9.12 rev. 2586e-03/06 8. updated features in ?usi ? universal serial interface? on page 108 . 9. updated code example in ?spi master operation example? on page 110 and ?spi slave operation example? on page 111 . 10. updated ?analog comparator multiplexed input? on page 119 . 11. updated figure 17-1 on page 123 . 12. updated ?signature bytes? on page 150 . 13. updated ?electrical characteristics? on page 161 . 1. updated ?calibrated internal oscillator? on page 27 . 2. updated table 6.5.1 on page 31 . 3. added table 21-2 on page 164 . 1. updated ?internal pll for fast peripheral clo ck generation - clkpck? on page 24 . 2. updated ?default clock source? on page 30 . 3. updated ?low-frequency crystal oscillator? on page 29 . 4. updated ?calibrated internal oscillator? on page 27 . 5. updated ?clock output buffer? on page 31 . 6. updated ?power management and sleep modes? on page 34 . 7. added ?software bod disable? on page 35 . 8. updated figure 16-1 on page 119 . 9. updated ?bit 6 ? acbg: analog comparator bandgap select? on page 120 . 10. added note for table 17-2 on page 125 . 11. updated ?register summary? on page 7 . 1. updated ?digital input enable and sleep modes? on page 57 . 2. updated table 20-16 on page 158 . 3. updated ?ordering information? on page 11 . 1. updated features in ?analog to digital converter? on page 122 . 2. updated operation in ?analog to digital converter? on page 122 . 3. updated table 17-2 on page 133 . 4. updated table 17-3 on page 134 . 5. updated ?errata? on page 19 .
28 attiny25/45/85 [datasheet] 2586ps?avr?06/2013 9.13 rev. 2586d-02/06 9.14 rev. 2586c-06/05 9.15 rev. 2586b-05/05 9.16 rev. 2586a-02/05 initial revision. 1. updated table 6-13 on page 30 , table 6-10 on page 29 , table 6-3 on page 26 , table 6-9 on page 28 , table 6-5 on page 26 , table 9-1 on page 48 , table 17-4 on page 135 , table 20-16 on page 158 , table 21-8 on page 167 . 2. updated ?timer/counter1 in pwm mode? on page 86 . 3. updated text ?bit 2 ? tov1: timer/counter1 overflow flag? on page 93 . 4. updated values in ?dc characteristics? on page 161 . 5. updated ?register summary? on page 7 . 6. updated ?ordering information? on page 11 . 7. updated rev b and c in ?errata attiny45? on page 19 . 8. all references to power-save mode are removed. 9. updated register adresses. 1. updated ?features? on page 1 . 2. updated figure 1-1 on page 2 . 3. updated code examples on page 18 and page 19 . 4. moved ?temperature measurement? to section 17.12 page 133 . 5. updated ?register summary? on page 7 . 6. updated ?ordering information? on page 11 . 1. clki added, instances of eemwe /eewe renamed eempe/eepe, removed some tbd. removed ?preliminary description? from ?temperature measurement? on page 133 . 2. updated ?features? on page 1 . 3. updated figure 1-1 on page 2 and figure 8-1 on page 39 . 4. updated table 7-2 on page 38 , table 10-4 on page 63 , table 10-5 on page 63 5. updated ?serial programming instruction set? on page 153 . 6. updated sph register in ?instruction set summary? on page 9 . 7. updated ?dc characteristics? on page 161 . 8. updated ?ordering information? on page 11 . 9. updated ?errata? on page 19 .
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