MC68HC908JK3 MOTOROLA [Motorola, Inc], MC68HC908JK3 Datasheet - Page 24

• Manufacturer Part Number: MC68HC908JK3
• Description: MC68HC908JK1
• Manufacturer: MOTOROLA [Motorola, Inc]

ADC[0:7]/
ADC[11:8]/
PTB[0:7]
PTD[0:3]
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
128 BYTES RAM
CPU REGISTERS
COND CODE REG
CPU CONTROL
PTD[0:7]
DDRD
PTD
Figure 1-1. MCU Block Diagram
PROGRAM COUNTER
68HC08 CPU
MC68H(R)C908JL3/JK3: 4096 BYTES
STK PNTR
MC68H(R)C908JK1: 1536 BYTES
V 1 1
USER FLASH
INDEX REG
ACCUM
ALU
H
PTB[0:7]
DDRB
I N Z C
PTB
VOLTAGE REGULATOR
SYSTEM INTEGRATION
X-TAL OSCILLATOR
POWER-ON RESET
RC-OSCILLATOR
POWER SUPPLY
TIMER MODULE
MONITOR ROM
MODE SELECT
960 BYTES
MODULE
MODULE
MODULE
MODULE
MODULE
BREAK
16-BIT
COP
AND
OR
TCH0/PTD4
TCH1/PTD5
VDD
VSS
OSC2/RCCLK/PTA6
OSC1
RST
IRQ1