MC68HC05SR3D Datasheet, PDF (19/96 Pages) Freescale Semiconductor, Inc – Microcontrollers

1
USER ROM/EPROM - 3840 BYTES
SELF-CHECK/BOOTSTRAP ROM - 240 BYTES
RAM - 192 BYTES
KEYBOARD
INTERRUPT
8
PA0 - PA7
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
8
PB0 - PB7
8
PC0 - PC7
LOW VOLTAGE
RESET
7-BIT PRESCALER
8-Bit
POWER
ADC
8-BIT COUNTER
VDD
VSS
TIMER CONTROL
OSC1
OSC
OSC2
÷2
TIMER
Figure 1-1 MC68HC05SR3/MC68HC705SR3 Block Diagram
PD7
PD6/IRQ2
PD5/V_RH
PD4/V_RL
PD3/AN3
PD2/AN2
PD1/AN1
PD0/AN0
MC68HC05SR3
GENERAL DESCRIPTION
TPG
Freescale
1-3