PIC16C63A-04I/SO【PDF 13/184 页】IC MCU OTP 4KX14 PWM 28SOIC

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2000 Microchip Technology Inc.

DS30605C-page 11

PIC16C63A/65B/73B/74B

TABLE 3-1:

PIC16C63A/73B PINOUT DESCRIPTION

Pin Name

DIP

Pin#

SOIC

Pin#

I/O/P

Type

Buffer

Type

Description

OSC1/CLKIN

ST/CMOS(3) Oscillator crystal input/external clock source input.

OSC2/CLKOUT

—

Oscillator crystal output. Connects to crystal or resonator in

crystal oscillator mode. In RC mode, the OSC2 pin outputs

CLKOUT which has 1/4 the frequency of OSC1, and denotes

the instruction cycle rate.

MCLR/VPP

I/P

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/AN0(4)

I/O

TTL

RA0 can also be analog input 0(4).

RA1/AN1(4)

I/O

TTL

RA1 can also be analog input 1(4).

RA2/AN2(4)

I/O

TTL

RA2 can also be analog input 2(4).

RA3/AN3/VREF(4)

I/O

TTL

RA3 can also be analog input 3 or analog reference

voltage(4).

RA4/T0CKI

I/O

RA4 can also be the clock input to the Timer0 module.

Output is open drain type.

RA5/SS/AN4(4)

I/O

TTL

RA5 can also be analog input 4(4) or the slave select for

the synchronous serial port.

PORTB is a bi-directional I/O port. PORTB can be software

programmed for internal weak pull-up on all inputs.

RB0/INT

I/O

TTL/ST(1)

RB0 can also be the external interrupt pin.

RB1

I/O

TTL

RB2

I/O

TTL

RB3

I/O

TTL

RB4

I/O

TTL

Interrupt-on-change pin.

RB5

I/O

TTL

Interrupt-on-change pin.

RB6

I/O

TTL/ST(2)

Interrupt-on-change pin. Serial programming clock.

RB7

I/O

TTL/ST(2)

Interrupt-on-change pin. Serial programming data.

PORTC is a bi-directional I/O port.

RC0/T1OSO/T1CKI

I/O

RC0 can also be the Timer1 oscillator output or Timer1

clock input.

RC1/T1OSI/CCP2

I/O

RC1 can also be the Timer1 oscillator input or Capture2

input/Compare2 output/PWM2 output.

RC2/CCP1

I/O

RC2 can also be the Capture1 input/Compare1

output/PWM1 output.

RC3/SCK/SCL

I/O

RC3 can also be the synchronous serial clock input/output

for both SPI and I2C modes.

RC4/SDI/SDA

I/O

RC4 can also be the SPI Data In (SPI mode) or

data I/O (I2C mode).

RC5/SDO

I/O

RC5 can also be the SPI Data Out (SPI mode).

RC6/TX/CK

I/O

RC6 can also be the USART Asynchronous Transmit

or Synchronous Clock.

RC7/RX/DT

I/O

RC7 can also be the USART Asynchronous Receive

or Synchronous Data.

VSS

8, 19

—

Ground reference for logic and I/O pins.

VDD

—

Positive supply for logic and I/O pins.

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 in RC oscillator mode and a CMOS input otherwise.

4: A/D module is not available in the PIC16C63A.

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