PIC16LC774-04SLASHSP datasheet(7/200 Pages) MICROCHIP

7 / 200 page

PIC16C77X

Advance Information

DS30275A-page 7

TABLE 1-1

PIC16C773 PINOUT DESCRIPTION

Pin Name

DIP,

SSOP,

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

I/O

TTL

RA0 can also be analog input0

RA1/AN1

I/O

TTL

RA1 can also be analog input1

RA2/AN2/VREF-/VRL

I/O

TTL

RA2 can also be analog input2 or negative analog reference voltage

input or internal voltage reference low

RA3/AN3/VREF+/VRH

I/O

TTL

RA3 can also be analog input3 or positive analog reference voltage

input or internal voltage reference high

RA4/T0CKI

I/O

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

open drain type.

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

grammed for internal weak pull-up on all inputs.

RB0/INT

I/O

TTL/ST(1)

RB0 can also be the external interrupt pin.

RB1/SS

I/O

TTL/ST(1)

RB1 can also be the SSP slave select

RB2/AN8

I/O

TTL

RB2 can also be analog input8

RB3/AN9/LVDIN

I/O

TTL

RB3 can also be analog input9 or the low voltage detect input

reference

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.

AVSS

Ground reference for A/D converter

AVDD

Positive supply for A/D converter

VSS

—

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 for the multiplexed function.

This buffer is a Schmitt Trigger input when used in serial programming mode.

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

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