PIC16C716T-04I/SO View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC16C716T-04I/SO
Microchip Technology
PIC16C716T-04I/SO Datasheet PDF : 108 Pages
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PIC16C712/716
FIGURE 3-7: BLOCK DIAGRAM OF RB7:RB4 PINS
RBPU(1)
DATA BUS
WR PORT
WR TRIS
Data Latch
DQ
CK
TRIS Latch
DQ
CK
VDD
P
weak
pull-up
VDD
I/O
pin
TTL
Buffer
VSS
ST
Buffer
RD TRIS
Latch
QD
Set RBIF
RD PORT
EN
Q1
From other
RB7:RB4 pins
QD
EN
RB7:RB6 in serial programming mode
RD PORT
Q3
Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit (OPTION_REG<7>).
TABLE 3-3 PORTB FUNCTIONS
Name
Bit#
Buffer
Function
RB0/INT
bit0
TTL/ST(1) Input/output pin or external interrupt input. Internal software
programmable weak pull-up.
RB1/T1OS0/ bit1
T1CKI
TTL/ST(1)
Input/output pin or Timer 1 oscillator output, or Timer 1 clock input. Internal
software programmable weak pull-up. See Timer1 section for detailed
operation.
RB2/T1OSI bit2
TTL/ST(1)
Input/output pin or Timer 1 oscillator input. Internal software programmable
weak pull-up. See Timer1 section for detailed operation.
RB3/CCP1 bit3
TTL/ST(1)
Input/output pin or Capture 1 input, or Compare 1 output, or PWM1 output.
Internal software programmable weak pull-up. See CCP1 section for
detailed operation.
RB4
bit4
TTL
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up.
RB5
bit5
TTL
Input/output pin (with interrupt on change). Internal software programmable
weak pull-up.
RB6
bit6
TTL/ST(2) Input/output pin (with interrupt on change). Internal software programmable
weak pull-up. Serial programming clock.
RB7
bit7
TTL/ST(2) Input/output pin (with interrupt on change). Internal software programmable
weak pull-up. Serial programming data.
Legend: TTL = TTL input, ST = Schmitt Trigger input
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt or peripheral input.
2: This buffer is a Schmitt Trigger input when used in serial programming mode.
DS41106A-page 26
Preliminary
© 1999 Microchip Technology Inc.
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