PIC16C63A Microchip Technology, PIC16C63A Datasheet - Page 8

• Manufacturer Part Number: PIC16C63A
• Description: 28/40-Pin 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC16C63A/65B/73B/74B
TABLE 1-2:
DS30605A-page 8
Pin Name
OSC1/CLKIN
OSC2/CLKOUT
MCLR/V
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
RA4/T0CKI
RA5/SS/AN4
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
Legend: I = input
Note 1: This buffer is a Schmitt Trigger input when configured as an 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
4: This buffer is a Schmitt Trigger input when configured in RC oscillator mode and a CMOS input otherwise.
5: The A/D module is not available on the PIC16C65B.
PP
(5)
(5)
(5)
Slave Port mode (for interfacing to a microprocessor bus).
REF (5)
(5)
PIC16C65B/PIC16C74B PINOUT DESCRIPTION
Pin#
O = output
— = Not used
DIP
13
14
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
PLCC
Pin#
14
15
36
37
38
39
41
42
43
44
2
3
4
5
6
7
8
QFP
Pin#
30
31
18
19
20
21
22
23
24
10
11
14
15
16
17
8
9
I/O = input/output
TTL = TTL input
I/O/P
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/P
O
I
ST/CMOS
TTL/ST
TTL/ST
TTL/ST
Buffer
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
—
(1)
(2)
(2)
(4)
Description
Oscillator crystal input/external clock source input.
Oscillator crystal output. Connects to crystal or resonator in
crystal oscillator mode. In RC mode, OSC2 pin outputs
CLKOUT which has 1/4 the frequency of OSC1, and
denotes the instruction cycle rate.
Master clear (reset) input or programming voltage input.
This pin is an active low reset to the device.
PORTA is a bi-directional I/O port.
PORTB is a bi-directional I/O port. PORTB can be software
programmed for internal weak pull-up on all inputs.
P = power
ST = Schmitt Trigger input
RA0 can also be analog input0
RA1 can also be analog input1
RA2 can also be analog input2
RA3 can also be analog input3 or analog reference
voltage
RA4 can also be the clock input to the Timer0 timer/
counter. Output is open drain type.
RA5 can also be analog input4 or the slave select for
the synchronous serial port.
RB0 can also be the external interrupt pin.
Interrupt on change pin.
Interrupt on change pin.
Interrupt on change pin. Serial programming clock.
Interrupt on change pin. Serial programming data.
1998 Microchip Technology Inc.