PIC16C61 View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC16C61 Datasheet PDF : 336 Pages
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PIC16C6X
TABLE 3-2: PIC16C62/62A/R62/63/R63/66 PINOUT DESCRIPTION
Pin Name
Pin# Pin Type
Buffer
Type
Description
OSC1/CLKIN
9
I
ST/CMOS(3) Oscillator crystal input/external clock source input.
OSC2/CLKOUT
10
O
—
Oscillator crystal output. Connects to crystal or resonator in crys-
tal oscillator mode. In RC mode, the pin outputs CLKOUT which
has 1/4 the frequency of OSC1, and denotes the instruction cycle
rate.
MCLR/VPP
1
I/P
ST
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.
RA0
2
I/O
TTL
RA1
3
I/O
TTL
RA2
4
I/O
TTL
RA3
5
I/O
TTL
RA4/T0CKI
6
I/O
ST
RA4 can also be the clock input to the Timer0 timer/counter.
Output is open drain type.
RA5/SS
7
I/O
TTL
RA5 can also be the slave select for the synchronous serial
port.
RB0/INT
PORTB is a bi-directional I/O port. PORTB can be software pro-
grammed for internal weak pull-up on all inputs.
21
I/O
TTL/ST(4)
RB0 can also be the external interrupt pin.
RB1
22
I/O
TTL
RB2
23
I/O
TTL
RB3
24
I/O
TTL
RB4
25
I/O
TTL
Interrupt on change pin.
RB5
26
I/O
TTL
Interrupt on change pin.
RB6
27
I/O
TTL/ST(5)
Interrupt on change pin. Serial programming clock.
RB7
28
I/O
TTL/ST(5)
Interrupt on change pin. Serial programming data.
RC0/T1OSO(1)/T1CKI
RC1/T1OSI(1)/CCP2(2)
11
I/O
12
I/O
PORTC is a bi-directional I/O port.
ST
RC0 can also be the Timer1 oscillator output(1) or Timer1
clock input.
ST
RC1 can also be the Timer1 oscillator input(1) or Capture2
input/Compare2 output/PWM2 output(2).
RC2/CCP1
13
I/O
ST
RC2 can also be the Capture1 input/Compare1 out-
put/PWM1 output.
RC3/SCK/SCL
14
I/O
ST
RC3 can also be the synchronous serial clock input/output
for both SPI and I2C modes.
RC4/SDI/SDA
15
I/O
ST
RC4 can also be the SPI Data In (SPI mode) or
data I/O (I2C mode).
RC5/SDO
RC6/TX/CK(2)
RC7/RX/DT(2)
16
I/O
ST
17
I/O
ST
18
I/O
ST
RC5 can also be the SPI Data Out (SPI mode).
RC6 can also be the USART Asynchronous Transmit(2) or
Synchronous Clock(2).
RC7 can also be the USART Asynchronous Receive(2) or
Synchronous Data(2).
VSS
8,19
P
—
Ground reference for logic and I/O pins.
VDD
20
P
—
Positive supply for logic and I/O pins.
Legend:
Note 1:
2:
3:
4:
5:
I = input O = output
I/O = input/output
P = power
— = Not used
TTL = TTL input
ST = Schmitt Trigger input
Pin functions T1OSO and T1OSI are reversed on the PIC16C62.
The USART and CCP2 are not available on the PIC16C62/62A/R62.
This buffer is a Schmitt Trigger input when configured in RC oscillator mode and a CMOS input otherwise.
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.
© 1997 Microchip Technology Inc.
DS30234D-page 15
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