g smsun KS57C2408A/2416a 4-bit cmos microcontroller product specification 7? overview the KS57C2408A/2416a single-chip cmos microcontroller is designed for very high performance using samsung's newest 4-bit product development approach, sam4 (samsung arrangeable microcontrollers). its main features are an up-to-12-digit lcd direct drive capability, 8-bit 6-channel a/d converter, and versatile 8-bit and 16-bit counter/ timers. the "2408a/2416a" gives you an excellent design solution for a variety of lcd-related applications. up to 50 pins of the available 80-pin qfp packages can be dedicated to i/o. and eight vectored interrupts provide fast response to internal and external events. in addition, the 2408a/2416a's advanced cmos technology ensures low power consumption and a wide operating voltage range. features memory 512 4-bit ram 8192 8-bit (KS57C2408A) 16384 8-bit (ks57c2416a) data memory mapped i/o oscillation sources crystal, ceramic, rc (main) crystal for subsystem clock main system clock frequency: 4.19 mhz (typical) subsystem clock frequency: 32.768 khz cpu clock divider (4, 8, 64) two power-down modes idle (only cpu clock stops) stop (system clock stops) interrupts 5 internal vectored interrupts 3 external vectored interrupts 2 quasi-interrupts 50 i/o pins 10 input pins 12 output pins 20 configurable i/o pins 8 n-channel open-drain pins 8-bit basic timer 4 interval timer functions 8-bit timer/counter programmable 8-bit timer external event counter arbitrary clock output external clock signal divider serial i/o clock generator 16-bit timer/counter programmable 16-bit timer external event counter arbitrary clock output external clock signal divider watch timer real-time and interval time measurement clock generation for lcd four frequency outputs for buzzer sound lcd controller/driver maximum 12-digit lcd direct drive capability display modes: static, 1/2duty (1/2 bias) 1/3 duty (1/2 or1/3 bias), 1/4duty (1/3 bias) a/d converter six analog input channels 19.09- m s conversion speed at 4.19 mhz 8-bit conversion resolution 8-bit serial i/o interface 8-bit transmit/receive mode 8-bit receive mode lsb-first or msb-first transmission selectable internal/external clock source instruction execution times 0.95, 1.91, 15.3 m s at 4.19 mhz (main) 122 m s at 32.768 khz (subsystem) operating temperature range 40 c to 85 c operating voltage range 2.7 v to 6.0 v package type 80-pin qfp package
KS57C2408A/2416a microcontroller product specification september 1996 7? g electronics smsun g smsun p10.0?10.1 / ad4?d5 p6.0?6.3 / ks0?s3 p3.0 / tclo0 basic timer p0.3 / btco a/d converter arithmetic and logic unit interrupt control block 4-bit accumu- lator stack pointer program counter program status word i/o port 0 lcd driver p8.0?8.11 / seg12?eg23 vlc0?lc2 com0?om3 seg0?eg11 bias input port 1 i/o port 2 i/o port 3 p0.0 / sck p0.1 / so p0.2 / si p0.3 / btco p1.0 / int0 p1.1 / int1 p1.2 / int2 p1.3 / int4 p2.0 / tcl0 p2.1 / tcl1 p2.2 p2.3 p3.0 / tclo0 p3.1 / tclo1 p3.2 / clo avref 512 x 4-bit data memory and stack serial i/o port p0.2 / si p0.1 / so p0.0 / sck p3.3 / buz watch timer 8 k /16 k byte program memory 8-bit timer/ counter 0 p2.0 / tcl0 p2.1 / tcl1 p3.1 / tclo1 16-bit timer/ counter 1 flags decoder logic osc reset xin xtin xout xtout internal interrupts int0, int1, int2, int4 instruction register i/o port 4 i/o port 5 p4.0?4.3 p5.0?5.3 i/o port 6 i/o port 7 p7.0?7.3 / ks4?s7 p9.0?9.3 / ad0?d3 input port 9 input port 10 avss figure 1. KS57C2408A/2416a block diagram
product specification KS57C2408A/2416a microcontroller g electronics smsun g smsun 7? september 1996 seg5 seg4 seg3 seg2 seg1 seg0 av ref av ss p10.1 / ad5 p10.0 / ad4 p9.3 / ad3 p9.2 / ad2 p9.1 / ad1 p9.0 / ad0 xtout xtin xin xout v dd test reset p4.3 p4.2 p4.1 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 28 27 26 25 KS57C2408A/2416a (top view) p8.10 / seg22 p8.11 / seg23 com0 com1 com2 com3 bias v lc0 v lc1 v lc2 v ss p0.0 / sck p0.1 / so p0.2 / si p0.3 / btco p1.0 / int0 p1.1 / int1 p1.2 / int2 p1.3 / int4 p2.0 / tcl0 p2.1 / tcl1 p2.2 p2.3 p3.0 / tclo0 seg6 seg7 seg8 p7.0 / ks4 p6.3 / ks3 p8.5 / seg17 p8.6 / seg18 p8.7 / seg19 p8.8 / seg20 p8.9 / seg21 p5.0 p7.3 / ks7 p7.2 / ks6 p7.1 / ks5 p8.0 / seg12 p8.1 / seg13 p8.2 / seg14 p8.3 / seg15 p8.4 / seg16 seg9 seg10 seg11 p3.3 / buz p3.2 / clo p3.1 / tclo1 p6.2 / ks2 p6.1 / ks1 p6.0 / ks0 p4.0 p5.3 p5.2 p5.1 40 39 38 37 36 35 34 33 32 31 30 29 65 66 67 68 69 70 71 72 73 74 75 76 figure 2. KS57C2408A/2416a pin assignments (80?fp)
KS57C2408A/2416a microcontroller product specification september 1996 7? g electronics smsun g smsun table 1. KS57C2408A/2416a pin descriptions pin names pin type description number (80-qfp) share pin p0.0 p0.1 p0.2 p0.3 i/o 4-bit i/o port. 1-bit and 4-bit read/write and test is possible. individual pins are software configurable as input or output. 4-bit pull-up resistors are software assignable. 12 13 14 15 sck so si btco p1.0 p1.1 p1.2 p1.3 i 4-bit input port. 1-bit and 4-bit read and test is possible. 3-bit pull-up resistors are software assignable to pins p1.0, p1.1, and p1.2. 16 17 18 19 int0 int1 int2 int4 p2.0 p2.1 p2.2 p2.3 i/o same as port 0. 20 21 22 23 tcl0 tcl1 p3.0 p3.1 p3.2 p3.3 same as port 0. 24 25 26 27 tclo0 tclo1 clo buz p4.0?4.3 p5.0?5.3 4-bit i/o ports. n-channel open-drain output up to 9volts. 1 -, 4-, and 8-bit read/write and test is possible. ports 4 and 5 can be paired to support 8-bit data transfer. pull-up resistors are assignable to individual pins by mask option. 40?3 36?9 p6.0?6.3 p7.0?7.3 4-bit i/o ports. port 6 pins are individually software configurable as input or output. 1-bit and 4-bit read/write and test is possible. 4-bit pull-up resistors are software assignable. ports 6 and 7 can be paired to enable 8-bit data transfer. 28?1 32?5 ks0?s3 ks4?s7 p8.0?8.11 o output port for 1-bit data (for use as cmos driver only). 71?0, 1? seg12 seg23 p9.0?9.3 p10.0?10.1 i input ports for 1-bit or 4-bit data. 1-bit and 4-bit read and test is possible. 51?6 ad0?d3 ad4?d5 clo i/o cpu clock output 26 p3.2 buz 2, 4, 8, or 16 khz frequency output for buzzer sound with 4.19 mhz main system clock or 32.768 khz subsystem clock. 27 p3.3 x in , x out crystal, ceramic, or rc oscillator signal for main system clock. (for external clock input, use x in and input x in 's reverse phase to x out .) 48, 47 xt in , xt out crystal oscillator signal for subsystem clock. (for external clock input, use xt in and input xt in 's reverse phase to xt out ). 49, 50 int0, int1 i external interrupts. the triggering edge for int0 and int1 is selectable. only int0 is synchronized with the system clock. 16?7 p1.0, p1.1
product specification KS57C2408A/2416a microcontroller g electronics smsun g smsun 7? september 1996 table 1. KS57C2408A/2416a pin descriptions (continued) pin names pin type description number (80-qfp) share pin int2 i quasi-interrupt with detection of rising edges 18 p1.2 int4 external interrupt with detection of rising or falling edges 19 p1.3 ks0?s7 i/o quasi-interrupt input with falling edge detection 28?5 p6.0?7.3 tcl0 external clock input for timer/counter 0 20 p2.0 tcl1 external clock input for timer/counter 1 21 p2.1 tclo0 timer/counter 0 clock output 24 p3.0 tclo1 timer/counter 1 clock output 25 p3.1 com0?om3 o lcd common signal output 3? seg0?eg11 lcd segment output 59?0 seg12 seg23 1-bit lcd segment data output 71?0, 1? p8.0?8.11 bias lcd power control 7 v lc0 ? lc2 lcd power supply. voltage dividing resistors are assignable by mask option. 8?0 ad0?d5 i a/d converter analog input channels 51?6 p9.0?9.3 p10.0?10.1 av ss a/d converter ground 57 av ref a/d converter analog reference voltage 58 sck i/o serial i/o interface clock signal 12 p0.0 so serial data output 13 p0.1 si serial data input 14 p0.2 btco basic interval timer clock output 15 p0.3 reset i reset signal 44 v dd main power supply 46 v ss ground 11 test test signal input (must be connected to v ss) 45 note: pull-up resistors for ports 0, 2, 3, 6, and 7 are automatically disabled if they are configured to output mode.
KS57C2408A/2416a microcontroller product specification september 1996 7? g electronics smsun g smsun table 2. supplemental KS57C2408A/2416a pin data pin numbers (80-qfp) pin names share pins i/o type reset value circuit type 1, 2 p8.10, p8.11 seg22?eg23 o low 9 3? com0?om3 o low 8 7 bias 8?0 v lc0 ? lc2 11 v ss 12?5 p0.0?0.3 sck , so, si, btco i/o 6 16?8 p1.0?1.2 int0, int1, int2 i 3 19 p1.3 int4 i 2 20, 21 p2.0, p2.1 tcl0, tcl1 input 6 22, 23 p2.2, p2.3 6 24?7 p3.0?3.3 tclo0, tclo1, clo, buz i/o 5 28?1 p6.0?6.3 ks0?s3 6 32?5 p7.0?7.3 ks4?s7 6 36?9 p5.0?5.3 i/o (note) 10 40?3 p4.0?4.3 i/o (note) 10 44 reset 12 45 test 46 v dd 47, 48 x in , x out 49, 50 xt in , xt out 51?4 p9.0?9.3 ad0?d3 i input 11 55, 56 p10.0, p10.1 ad4, ad5 i input 11 57, 58 av ss , av ref 59?0 seg0?eg11 o low 7 71?0 p8.0?8.9 seg12?eg21 o low 9 note : high level (when pull-up resistors are provided) or high impedance.
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