MC68HC05SU3A Datasheet, PDF (17/80 Pages) Freescale Semiconductor, Inc – Fully static chip design featuring the industry standard 8-bit M68HC05 core

Freescale Semiconductor, Inc.
1
USER ROM - 3840 BYTES
SELF-CHECK - 240 BYTES
RAM - 192 BYTES
IRQ
RESET
7
0
M68HC05
CPU
ACCUMULATOR
7
0
INDEX REGISTER
12
5
0
0000011
STACK POINTER
15
4
0
RESET
PROGRAM COUNTER
7
0
111H I NZC
CONDITION CODE REGISTER
KEYBOARD
INTERRUPT
VDD
VSS
OSC1
OSC2
TIMER
LOW VOLTAGE
RESET
POWER
OSC
÷2
7-BIT PRESCALER
8-BIT COUNTER
TIMER CONTROL
Figure 1-1 MC68HC05SU3A Block Diagram
8
PA0 - PA7
8
PB0 - PB7
8
PC0 - PC7
PD7
PD6/IRQ2
PD5
PD4
PD3
PD2
PD1
PD0
TPG
MC68HC05SU3A
GENERAL DESCRIPTION
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