PIC16C620 Microchip Technology, PIC16C620 Datasheet - Page 11

• Manufacturer Part Number: PIC16C620
• Description: EPROM-Based 8-Bit CMOS Microcontroller
• Manufacturer: Microchip Technology

TABLE 3-1:
Name
OSC1/CLKIN
OSC2/CLKOUT
MCLR/V
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3
RA4/T0CKI
RB0/INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
V
V
Legend:
Note 1: This buffer is a Schmitt Trigger input when configured as the external interrupt.
Note 2: This buffer is a Schmitt Trigger input when used in serial programming mode.
SS
DD
1998 Microchip Technology Inc.
PP
REF
PIC16C62X PINOUT DESCRIPTION
SOIC
Pin #
DIP/
O = output
— = Not used
TTL = TTL input
16
15
17
18
10
11
12
13
14
4
1
2
3
6
7
8
9
5
SSOP
15,16
Pin #
5,6
18
17
19
20
10
11
12
13
14
4
1
2
3
7
8
9
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/P
O
P
P
I
I/O = input/output
I = Input
TTL/ST
ST/CMOS Oscillator crystal input/external clock source input.
TTL/ST
TTL/ST
Buffer
Type
TTL
TTL
TTL
TTL
TTL
ST
ST
ST
ST
ST
ST
—
—
—
Preliminary
(2)
(2)
(1)
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/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.
Ground reference for logic and I/O pins.
Positive supply for logic and I/O pins.
Analog comparator input
Analog comparator input
Analog comparator input or V
Analog comparator input /output
Can be selected to be the clock input to the Timer0
timer/counter or a comparator output. Output is open
drain type.
RB0/INT 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.
P = power
ST = Schmitt Trigger input
Description
REF
PIC16C62X
output
DS30235G-page 11