mc68hc705c4acfn Freescale Semiconductor, Inc, mc68hc705c4acfn Datasheet - Page 25

• Manufacturer Part Number: mc68hc705c4acfn
• Description: M68hc05 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

MC68HC705C4A • MC68HSC705C4A — Rev. 3.0
MOTOROLA
RESET
OSC2
OSC1
V DD
*
† PC7 has a high current sink and source capability.
V SS
IRQ
V
Port B pins also function as external interrupts.
PP
OSCILLATOR
EPROM PROGRAMMING
CONDITION CODE REGISTER
POWER
COP WATCHDOG
CPU REGISTERS
CONTROL
CONTROL
CPU
0
EPROM/OTPROM — 4144 BYTES
0
BOOT ROM — 240 BYTES
0
RAM — 176 BYTES
0
M68HC05 CPU
2
PROGRAM COUNTER
Figure 1-2. Block Diagram
0
1
1
1
General Description
1
INDEX REGISTER
ACCUMULATOR
1
PROGRAM REGISTER
STACK POINTER
ARITHMETIC
LOGIC UNIT
H
PROCESSOR
INTERNAL
CLOCK
I
N
REGISTER
GENERATOR
OPTION
Z
BAUD RATE
C
CAPTURE/COMPARE
TIMER SYSTEM
16-BIT
SCI
SPI
General Description
Pin Assignments
Technical Data
PD7
RDI (PD0)
TDO (PD1)
MISO (PD2)
MOSI (PD3)
SCK (PD4)
SS (PD5)
TCAP
TCMP
PB0
PB1
PB2
PB3
PB4
PB5
PC0
PC1
PC2
PC3
PC4
PC5
PC7†
PA0
PA1
PA2
PA3
PA4
PA5
PA7
PA6
PB6
PB7
PC6
*
*
*
*
*
*
*
*
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