PIC17C42 Microchip Technology, PIC17C42 Datasheet - Page 56

• Manufacturer Part Number: PIC17C42
• Description: High-Performance 8-Bit CMOS EPROM/ROM Microcontroller
• Manufacturer: Microchip Technology

PIC17C4X
FIGURE 9-5:
DS30412C-page 56
Note: I/O pins have protection diodes to V
Weak
Pull-Up
BLOCK DIAGRAM OF RB3 AND RB2 PORT PINS
OE
DD
and Vss.
Port
Input Latch
Port
Data
Q
CK
D
Match Signal
from other
port pins
Q
R
CK
1996 Microchip Technology Inc.
D
RBPU
Peripheral Data in
WR_PORTB (Q4)
RD_PORTB (Q2)
WR_DDRB (Q4)
RD_DDRB (Q2)
(PORTA<7>)
PWM_output
PWM_select
Data Bus
RBIF