PIC16C76-10/JW Microchip Technology, PIC16C76-10/JW Datasheet - Page 46

• Manufacturer Part Number: PIC16C76-10/JW
• Description: 8-Bit CMOS Microcontrollers with A/D Converter
• Manufacturer: Microchip Technology

PIC16C7X
FIGURE 5-4:
TABLE 5-3:
DS30390E-page 46
Set RBIF
Name
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
Legend: TTL = TTL input, ST = Schmitt Trigger input
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.
Data bus
Note 1: I/O pins have diode protection to V
WR TRIS
WR Port
RBPU
RB7:RB6 in serial programming mode
2: This buffer is a Schmitt Trigger input when used in serial programming mode.
2: To enable weak pull-ups, set the appropriate TRIS bit(s)
(2)
From other
RB7:RB4 pins
and clear the RBPU bit (OPTION<7>).
Bit#
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
BLOCK DIAGRAM OF
RB7:RB4 PINS (PIC16C73/74)
PORTB FUNCTIONS
RD TRIS
RD Port
Data Latch
TRIS Latch
D
D
CK
CK
Q
Q
TTL/ST
TTL/ST
TTL/ST
Buffer
TTL
TTL
TTL
TTL
TTL
Q
Q
Latch
(1)
(2)
(2)
DD
EN
EN
D
and V
D
TTL
Input
Buffer
Input/output pin or external interrupt input. Internal software
programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin. Internal software programmable weak pull-up.
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up.
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up.
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up. Serial programming clock.
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up. Serial programming data.
Function
SS
V
RD Port
P
.
DD
Buffer
weak
pull-up
I/O
pin
ST
(1)
FIGURE 5-5:
Data bus
WR Port
WR TRIS
RBPU
Note 1: I/O pins have diode protection to V
RB7:RB6 in serial programming mode
Set RBIF
From other
RB7:RB4 pins
2: To enable weak pull-ups, set the appropriate TRIS bit(s)
(2)
and clear the RBPU bit (OPTION<7>).
RD TRIS
RD Port
Data Latch
TRIS Latch
D
D
BLOCK DIAGRAM OF
RB7:RB4 PINS (PIC16C72/
73A/74A/76/77)
CK
CK
Q
Q
1997 Microchip Technology Inc.
Q
Q
Latch
DD
EN
EN
D
D
and V
TTL
Input
Buffer
SS
V
P
DD
.
weak
pull-up
RD Port
Buffer
I/O
pin
Q1
Q3
(1)
ST