PIC16C662-10I/SP Microchip Technology, PIC16C662-10I/SP Datasheet - Page 12

• Manufacturer Part Number: PIC16C662-10I/SP
• Description: 8-Bit EPROM Microcontrollers with Analog Comparators
• Manufacturer: Microchip Technology

PIC16C64X & PIC16C66X
TABLE 3-1:
DS30559A-page 12
Name
OSC1/CLKIN
OSC2/CLKOUT
MCLR/V
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3
RA4/T0CKI
RA5
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
RC0
RC1
RC2
RC3
RC4
RC5
RC6
RC7
V
V
Legend:
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.
SS
DD
2: This buffer is a Schmitt Trigger input when used in serial programming mode.
PP
REF
PIC16C641/642 PINOUT DESCRIPTION
Pin #
8,19
10
21
22
23
24
25
26
27
28
12
13
14
15
16
17
18
20
11
O = output
I = input
TTL = TTL input
9
1
2
3
4
5
6
7
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/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/P
O
P
P
I
ST/CMOS Oscillator crystal input or external clock source input.
TTL/ST
TTL/ST
TTL/ST
Buffer
Type
TTL
TTL
TTL
TTL
TTL
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
—
—
—
I/O = input/output
— = not used
(1)
(2)
(2)
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 pro-
grammed for internal weak pull-ups on all inputs.
Ground reference for logic and I/O pins.
Positive supply for logic and I/O pins.
Preliminary
Analog comparator input.
Analog comparator input.
Analog comparator input or V
Analog comparator input or comparator output.
Can be selected to be the clock input to the Timer0 timer/counter
or a comparator output. Output is open drain type.
RB0 can also be selected as an 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.
PORTC is a bi-directional I/O port.
P = power
ST = Schmitt Trigger input
Description
REF
output.
1996 Microchip Technology Inc.