PIC16C74B-04I/P【PDF 35/184 页】IC MCU OTP 4KX14 A/D PWM 40DIP

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Sheet目录3820

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2000 Microchip Technology Inc.

DS30605C-page 13

PIC16C63A/65B/73B/74B

PORTC is a bi-directional I/O port.

RC0/T1OSO/T1CKI

I/O

RC0 can also be the Timer1 oscillator output or a

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.

PORTD is a bi-directional I/O port or parallel slave port

when interfacing to a microprocessor bus.

RD0/PSP0

I/O

ST/TTL(3)

RD1/PSP1

I/O

ST/TTL(3)

RD2/PSP2

I/O

ST/TTL(3)

RD3/PSP3

I/O

ST/TTL(3)

RD4/PSP4

I/O

ST/TTL(3)

RD5/PSP5

I/O

ST/TTL(3)

RD6/PSP6

I/O

ST/TTL(3)

RD7/PSP7

I/O

ST/TTL(3)

PORTE is a bi-directional I/O port.

RE0/RD/AN5(5)

I/O

ST/TTL(3)

RE0 can also be read control for the parallel slave port,

or analog input 5(5).

RE1/WR/AN6(5)

910

I/O

ST/TTL(3)

RE1 can also be write control for the parallel slave port,

or analog input 6(5).

RE2/CS/AN7(5)

I/O

ST/TTL(3)

RE2 can also be select control for the parallel slave

port, or analog input 7(5).

VSS

12,31

13,34

6,29

—

Ground reference for logic and I/O pins.

VDD

11,32

12,35

7,28

—

Positive supply for logic and I/O pins.

—

1,17,28,

12,13,

33,34

—

These pins are not internally connected. These pins should

be left unconnected.

TABLE 3-2:

PIC16C65B/74B PINOUT DESCRIPTION (CONTINUED)

Pin Name

DIP

Pin#

PLCC

Pin#

TQFP

MQFP

Pin#

I/O/P

Type

Buffer

Type

Description

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 as general purpose I/O and a TTL input when used in the Parallel

Slave Port mode (for interfacing to a microprocessor bus).

4: This buffer is a Schmitt Trigger input when configured in RC oscillator mode and a CMOS input otherwise.

5: A/D is not available on the PIC16C65B.

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