PIC16F87XA Datasheet, PDF (14/234 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers

PIC16F87XA
TABLE 1-3: PIC16F874A/877A PINOUT DESCRIPTION (CONTINUED)
Pin Name
PDIP PLCC TQFP QFN I/O/P
Pin# Pin# Pin# Pin# Type
Buffer
Type
Description
PORTC is a bidirectional I/O port.
RC0/T1OSO/T1CKI
15
16 32
34
ST
RC0
I/O
T1OSO
O
T1CKI
I
Digital I/O.
Timer1 oscillator output.
Timer1 external clock input.
RC1/T1OSI/CCP2
16
18 35
35
ST
RC1
I/O
T1OSI
I
CCP2
I/O
Digital I/O.
Timer1 oscillator input.
Capture2 input, Compare2 output, PWM2 output.
RC2/CCP1
RC2
CCP1
17
19 36
36
ST
I/O
I/O
Digital I/O.
Capture1 input, Compare1 output, PWM1 output.
RC3/SCK/SCL
RC3
SCK
SCL
18
20 37
37
ST
I/O
I/O
I/O
Digital I/O.
Synchronous serial clock input/output for SPI
mode.
Synchronous serial clock input/output for I²C
mode.
RC4/SDI/SDA
RC4
SDI
SDA
23
25 42
42
ST
I/O
I
I/O
Digital I/O.
SPI data in.
I²C data I/O.
RC5/SDO
RC5
SDO
24
26 43
43
ST
I/O
O
Digital I/O.
SPI data out.
RC6/TX/CK
RC6
TX
CK
25
27
44
44
ST
I/O
O
I/O
Digital I/O.
USART asynchronous transmit.
USART1 synchronous clock.
RC7/RX/DT
RC7
RX
DT
26 29
1
1
ST
I/O
I
I/O
Digital I/O.
USART asynchronous receive.
USART synchronous data.
Legend:
Note 1:
2:
3:
I = input
O = output
I/O = input/output
P = power
— = Not used TTL = TTL input ST = Schmitt Trigger input
This buffer is a Schmitt Trigger input when configured as the external interrupt.
This buffer is a Schmitt Trigger input when used in Serial Programming mode.
This buffer is a Schmitt Trigger input when configured in RC Oscillator mode and a CMOS input otherwise.
DS39582B-page 12
 2003 Microchip Technology Inc.