? 2011-2012 microchip technology inc. advance information ds41571b-page 1 PIC12LF1840T48A high-performance risc cpu: ? only 49 instructions to learn: - all single-cycle instructions except branches ? operating speed: - dc ? 32 mhz oscillator/clock input - dc ? 125 ns instruction cycle ? interrupt capability with automatic context saving ? 16-level deep hardware stack with optional overflow/underflow reset ? direct, indirect and relative addressing modes: - two full 16-bit file select registers (fsrs) - fsrs can read program and data memory flexible oscillator structure: ? precision 32 mhz internal oscillator block: - factory calibrated to 1%, typical - software selectable frequencies range of 31 khz to 32 mhz ? 31 khz low-power internal oscillator ? four crystal modes up to 32 mhz ? three external clock modes up to 32 mhz ? 4x phase lock loop (pll) ? fail-safe clock monitor: - allows for safe shutdown if peripheral clock stops ? two-speed oscillator start-up ? reference clock module: - programmable clock output frequency and duty-cycle special microcontroller features: ? 1.8v-3.6v operation ? self-reprogrammable under software control ? power-on reset (por), power-up timer (pwrt) and oscillator start-up timer (ost) ? programmable brown-out reset (bor) ? extended watchdog timer (wdt) ? in-circuit serial programming? (icsp?) via two pins ? in-circuit debug (icd) via two pins ? enhanced low-voltage programming (lvp) ? programmable code protection ? power-saving sleep mode low-power features: ? standby current: - 170 na @ 1.8v, typical, rf sleep ? operating current: - 35 a @ 1 mhz, 1.8v, rf sleep, typical - 9 ma @ 1 mhz, 1.8v, rf on at 0 dbm, typical - 16.5 ma @ 1 mhz, 1.8v, rf on at +10 dbm, typical ? low-power watchdog timer current: - 500 na @ 3.0v, typical rf transmitter: ? fully integrated transmitter ? operation in 418, 434 and 868 mhz bands: - 8 selectable center frequencies ? +10 dbm or 0 dbm configurable output power ? fsk operation up to 100 kbps ? ook operation up to 10 kbps analog features: ? analog-to-digital converter (adc) module: - 10-bit resolution, 4 channels - conversion available during sleep ? analog comparator module: - one rail-to-rail analog comparator - power mode control - software controllable hysteresis ? voltage reference module: - fixed voltage reference (fvr) with 1.024v and 2.048v output levels - 5-bit rail-to-rail resistive dac with positive and negative reference selection peripheral features: ? 5 i/o pins and 1 input only pin: - high current sink/source 25 ma/25 ma - programmable weak pull-ups - programmable interrupt-on-change pins ? timer0: 8-bit timer/counter with 8-bit prescaler ? enhanced timer1: - 16-bit timer/counter with prescaler - external gate input mode - dedicated, low-power 32 khz oscillator driver ? timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler PIC12LF1840T48A product brief
PIC12LF1840T48A ds41571b-page 2 advance information ? 2011-2012 microchip technology inc. ? enhanced ccp (eccp) module: - software selectable time bases - auto-shutdown and auto-restart -pwm steering ? master synchronous serial port (mssp) with spi and i 2 c tm with: - 7-bit address masking - smbus/pmbus tm compatibility ? enhanced universal synchronous asynchronous receiver transmitter (eusart) module: - rs-232, rs-485 and lin compatible - auto-baud detect ? capacitive sensing (cps) module (mtouch tm ): - 4 input channels ? data signal modulator module: - selectable modulator and carrier sources ?sr latch: - multiple set/reset input options - emulates 555 timer applications figure 1: 14-pin diagram, PIC12LF1840T48A (tssop) table 1: PIC12LF1840T48A feature summary device program memory flash (words) data memory eeprom (bytes) data memory sram (bytes) i/os (1) 10-bit adc (ch) capsense (ch) comparators timers (8/16-bit) eusart mssp (i 2 c?/spi) eccp (half-bridge) sr latch rf transmitter debug (2) PIC12LF1840T48A 4k 256 256 6 4 4 1 2/1 1 1 1 yes yes i/h note 1: one pin is input only. 2: i ? debugging, integrated on chip; h ? debugging, debug header available note: pin details are subject to change. PIC12LF1840T48A 1 2 10 9 8 3 4 5 7 6 v dd ra5 ra4 mclr /v pp /ra3 vss ra0/icspdat ra1/icspclk ra2 xtal v ddrf 14 13 12 11 ctrl rf out data v ssrf
? 2011-2012 microchip technology inc. advance information ds41571b-page 3 PIC12LF1840T48A table 2: 14-pin allocation table (PIC12LF1840T48A) i/o 14-pin tssop a/d reference cap sense comparator sr latch timers eccp eusart mssp interrupt modulator pull-up basic rf transmitter ra0 13 an0 dacout cps0 c1in+ ? ? p1b (1) tx (1) ck (1) sdo (1) ss (2) ioc mdout y icspdat icddat ? ra1 12 an1 v ref cps1 c1in0- sri ? ? rx (1) dt (1) scl sck ioc mdmin y icspclk ? ra2 11 an2 ? cps2 c1out srq t0cki ccp1 (1) p1a (1) flt0 ? sda sdi int ioc mdcin1 y ?? ra3 4 ? ? ? ? ? t1g (2) ? ? ss (1) ioc ? y mclr v pp ? ra4 3 an3 ? cps3 c1in1- ? t1g (1) t1oso p1b (2) tx (2) ck (2) sdo (2) ioc mdcin2 y osc2 clkout clkr ? ra5 2 ? ? ? ? srnq t1cki t1osi ccp1 (2) p1a (2) rx (2) dt (2) ? ioc ? y osc1 clkin ? v dd 1? ? ? ? ? ? ? ? ? ? ? ?v dd ? v ss 14 ? ? ? ? ? ? ? ? ? ? ? ? v ss ? ctrl 6 ? ? ? ? ? ? ? ? ? ? ? ? ? ctrl rf out 7 ? ? ? ? ? ? ? ? ? ? ? ? ? rf out data 9 ? ? ? ? ? ? ? ? ? ? ? ? ? data xtal 10 ? ? ? ? ? ? ? ? ? ? ? ? ? xtal v ddrf 5? ? ? ? ? ? ? ? ? ? ? ? ? v dd v ssrf 8 ? ? ? ? ? ? ? ? ? ? ? ? ? v ss note 1: default location for peripheral pin function. alternate location can be selected using the apfcon register. 2: alternate location for peripheral pin function selected by the apfcon register.
PIC12LF1840T48A ds41571b-page 4 advance information ? 2011-2012 microchip technology inc. appendix a: revision history revision a (03/2011) initial release. revision b (01/2012) revised low-power features; revised rf transmit- ter; revised table 1, table 2 and figure 1.
? 2011-2012 microchip technology inc. advance information ds41571b-page 5 information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. it is your responsibility to ensure that your application meets with your specifications. microchip makes no representations or warranties of any kind whether express or implied, written or oral, statutory or otherwise, related to the information, including but not limited to its condition, quality, performance, merchantability or fitness for purpose . microchip disclaims all liability arising from this information and its use. use of microchip devices in life support and/or safety applications is entirely at the buyer?s risk, and the buyer agrees to defend, indemnify and hold harmless microchip from any and all damages, claims, suits, or expenses resulting from such use. no licenses are conveyed, implicitly or otherwise, under any microchip intellectual property rights. trademarks the microchip name and logo, the microchip logo, dspic, k ee l oq , k ee l oq logo, mplab, pic, picmicro, picstart, pic 32 logo, rfpic and uni/o are registered trademarks of microchip technology incorporated in the u.s.a. and other countries. filterlab, hampshire, hi-tech c, linear active thermistor, mxdev, mxlab, seeval and the embedded control solutions company are registered trademarks of microchip technology incorporated in the u.s.a. analog-for-the-digital age, app lication maestro, chipkit, chipkit logo, codeguard, dspicdem, dspicdem.net, dspicworks, dsspeak, ecan, economonitor, fansense, hi-tide, in-circuit serial programming, icsp, mindi, miwi, mpasm, mplab certified logo, mplib, mplink, mtouch, omniscient code generation, picc, picc-18, picdem, picdem.net, pickit, pictail, real ice, rflab, select mode, total endurance, tsharc, uniwindriver, wiperlock and zena are trademarks of microchip technology incorporated in the u.s.a. and other countries. sqtp is a service mark of microchip technology incorporated in the u.s.a. all other trademarks mentioned herein are property of their respective companies. ? 2011-2012, microchip technology incorporated, printed in the u.s.a., all rights reserved. printed on recycled paper. isbn: 978-1-61341-967-0 note the following details of the code protection feature on microchip devices: ? microchip products meet the specification cont ained in their particular microchip data sheet. ? microchip believes that its family of products is one of the most secure families of its kind on the market today, when used i n the intended manner and under normal conditions. ? there are dishonest and possibly illegal methods used to breach the code protection feature. all of these methods, to our knowledge, require using the microchip produc ts in a manner outside the operating specif ications contained in microchip?s data sheets. most likely, the person doing so is engaged in theft of intellectual property. ? microchip is willing to work with the customer who is concerned about the integrity of their code. ? neither microchip nor any other semiconduc tor manufacturer can guarantee the security of their code. code protection does not mean that we are guaranteeing the product as ?unbreakable.? code protection is constantly evolving. we at microchip are co mmitted to continuously improvin g the code protection features of our products. attempts to break microchip?s code protection feature may be a violation of the digital millennium copyright act. if such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that act. microchip received iso/ts-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in chandler and tempe, arizona; gresham, oregon and design centers in california and india. the company?s quality system processes and procedures are for its pic ? mcus and dspic ? dscs, k ee l oq ? code hopping devices, serial eeproms, microperipherals, nonvolatile memory and analog products. in addition, microchip?s quality system for the design and manufacture of development systems is iso 9001:2000 certified.
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