MC68HC908JK1 Datasheet, PDF (24/210 Pages) Motorola, Inc – MC68HC908JK1

PTD[0:7]
PTD
DDRD
PTB[0:7]
PTB
DDRB
POWER SUPPLY
AND
VOLTAGE REGULATOR
VDD
VSS
ADC[0:7]/
PTB[0:7]
ADC[11:8]/
PTD[0:3]
CPU CONTROL
ALU
68HC08 CPU
CPU REGISTERS
ACCUM
INDEX REG
STK PNTR
PROGRAM COUNTER
COND CODE REG
V1 1H I NZC
128 BYTES RAM
MC68H(R)C908JL3/JK3: 4096 BYTES
MC68H(R)C908JK1: 1536 BYTES
USER FLASH
RST, IRQ1: PIN HAS INTERNAL 30K PULL-UP
PTD[6:7]: PINS HAVE 25mA OPEN-DRAIN OUTPUT & PROGRAMMABLE 5K PULL-UP
PTA[0:5], PTD[2:3], PTD[6:7]: PIN HAS LED DRIVE
PTA[0:6]: PINS HAVE PROGRAMMABLE KEYBOARD INTERRUPT AND PULL-UP
PTA[0:5] and PTD[0:1]: NOT AVAILABLE ON 20-PIN DEVICES – MC68H(R)C908JK3/JK1
Figure 1-1. MCU Block Diagram
X-TAL OSCILLATOR
OR
RC-OSCILLATOR
OSC2/RCCLK/PTA6
OSC1
SYSTEM INTEGRATION
MODULE
RST
MODE SELECT
MODULE
IRQ1
BREAK
MODULE
POWER-ON RESET
MODULE
16-BIT
TIMER MODULE
TCH0/PTD4
TCH1/PTD5
COP
MODULE
MONITOR ROM
960 BYTES