PIC16F627A_05 Datasheet, PDF (14/180 Pages) Microchip Technology – Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F627A/628A/648A
TABLE 3-2: PIC16F627A/628A/648A PINOUT DESCRIPTION (CONTINUED)
Name
Function Input Type Output Type
Description
RB4/PGM
RB5
RB6/T1OSO/T1CKI/PGC
RB7/T1OSI/PGD
VSS
VDD
Legend: O = Output
— = Not used
TTL = TTL Input
RB4
PGM
RB5
RB6
T1OSO
T1CKI
PGC
RB7
T1OSI
PGD
VSS
VDD
TTL
CMOS Bidirectional I/O port. Interrupt-on-pin change.
Can be software programmed for internal
weak pull-up.
ST
—
Low-voltage programming input pin. When
low-voltage programming is enabled, the
interrupt-on-pin change and weak pull-up
resistor are disabled.
TTL
CMOS Bidirectional I/O port. Interrupt-on-pin change.
Can be software programmed for internal
weak pull-up.
TTL
CMOS ^{Bidirectional I/O port. Interrupt-on-pin change.}
Can be software programmed for internal
weak pull-up.
—
XTAL Timer1 oscillator output
ST
—
Timer1 clock input
ST
—
ICSP™ programming clock
TTL
CMOS Bidirectional I/O port. Interrupt-on-pin change.
Can be software programmed for internal
weak pull-up.
XTAL
—
Timer1 oscillator input
ST
CMOS ICSP data I/O
Power
—
Ground reference for logic and I/O pins
Power
—
Positive supply for logic and I/O pins
CMOS = CMOS Output
I
= Input
OD = Open Drain Output
P = Power
ST = Schmitt Trigger Input
AN = Analog
DS40044D-page 12
© 2005 Microchip Technology Inc.