PIC16C63A/65B/73B/74B
TABLE 3-2:
Pin Name
PIC16C65B/74B PINOUT DESCRIPTION (CONTINUED)
DIP
Pin#
PLCC
Pin#
TQFP
I/O/P
MQFP
Type
Pin#
Buffer
Type
Description
PORTC is a bi-directional I/O port.
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
15
16
17
18
23
24
25
26
16
18
19
20
25
26
27
29
32
35
36
37
42
43
44
1
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
ST
ST
ST
ST
ST
ST
ST
ST
RC0 can also be the Timer1 oscillator output or a
Timer1 clock input.
RC1 can also be the Timer1 oscillator input or Capture2
input/Compare2 output/PWM2 output.
RC2 can also be the Capture1 input/Compare1 output/
PWM1 output.
RC3 can also be the synchronous serial clock input/
output for both SPI and I
2
C modes.
RC4 can also be the SPI Data In (SPI mode) or
data I/O (I
2
C mode).
RC5 can also be the SPI Data Out
(SPI mode).
RC6 can also be the USART Asynchronous Transmit or
Synchronous Clock.
RC7 can also be the USART Asynchronous Receive or
Synchronous Data.
PORTD is a bi-directional I/O port or parallel slave port
when interfacing to a microprocessor bus.
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
19
20
21
22
27
28
29
30
21
22
23
24
30
31
32
33
38
39
40
41
2
3
4
5
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
ST/TTL
(3)
ST/TTL
(3)
ST/TTL
(3)
ST/TTL
(3)
ST/TTL
(3)
ST/TTL
(3)
ST/TTL
(3)
ST/TTL
(3)
PORTE is a bi-directional I/O port.
ST/TTL
(3)
ST/TTL
(3)
ST/TTL
(3)
—
—
—
RE0/RD/AN5
(5)
RE1/WR/AN6
(5)
RE2/CS/AN7
(5)
V
SS
V
DD
NC
8
9
10
12,31
11,32
—
9
10
11
13,34
12,35
1,17,28,
40
25
26
27
6,29
7,28
12,13,
33,34
I/O
I/O
I/O
P
P
RE0 can also be read control for the parallel slave port,
or analog input 5
(5)
.
RE1 can also be write control for the parallel slave port,
or analog input 6
(5)
.
RE2 can also be select control for the parallel slave
port, or analog input 7
(5)
.
Ground reference for logic and I/O pins.
Positive supply for logic and I/O pins.
These pins are not internally connected. These pins should
be left unconnected.
Legend: I = input
O = output
I/O = input/output
P = power
— = Not used
TTL = TTL input
ST = Schmitt Trigger input
Note 1:
This buffer is a Schmitt Trigger input when configured as the external interrupt.
2:
This buffer is a Schmitt Trigger input when used in Serial Programming mode.
3:
This buffer is a Schmitt Trigger input when configured as general purpose I/O and a TTL input when used in the Parallel
Slave Port mode (for interfacing to a microprocessor bus).
4:
This buffer is a Schmitt Trigger input when configured in RC oscillator mode and a CMOS input otherwise.
5:
A/D is not available on the PIC16C65B.
2000 Microchip Technology Inc.
DS30605C-page 13
MICROCHIP [ MICROCHIP TECHNOLOGY ]
