PIC16LC71T-04E Просмотр технического описания (PDF) - Microchip Technology

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PIC16LC71T-04E

8-Bit CMOS Microcontrollers with A/D Converter

Microchip Technology 

PIC16C71X

TABLE 3-1: PIC16C710/71/711/715 PINOUT DESCRIPTION

Pin Name

DIP SSOP SOIC I/O/P

Pin# Pin#(4) Pin# Type

Buffer

Type

Description

OSC1/CLKIN 16 18

16

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

OSC2/CLKOUT 15 17

15

O

—

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.

MCLR/VPP

4

4

4

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/AN0

17 19

17

I/O

TTL

RA0 can also be analog input0

RA1/AN1

18 20

18

I/O

TTL

RA1 can also be analog input1

RA2/AN2

1

1

1

I/O

TTL

RA2 can also be analog input2

RA3/AN3/VREF 2

2

2

I/O

TTL

RA3 can also be analog input3 or analog reference voltage

RA4/T0CKI

3

3

3

I/O

ST

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

open drain type.

RB0/INT

6

7

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

grammed for internal weak pull-up on all inputs.

6

I/O TTL/ST(1)

RB0 can also be the external interrupt pin.

RB1

7

8

7

I/O

TTL

RB2

8

9

8

I/O

TTL

RB3

9 10

9

I/O

TTL

RB4

10 11

10

I/O

TTL

Interrupt on change pin.

RB5

11 12

11

I/O

TTL

Interrupt on change pin.

RB6

12 13

12

I/O TTL/ST(2)

Interrupt on change pin. Serial programming clock.

RB7

13 14

13

I/O TTL/ST(2)

Interrupt on change pin. Serial programming data.

VSS

5 4, 6

5

P

—

Ground reference for logic and I/O pins.

VDD

14 15, 16 14

P

—

Positive supply for logic and I/O pins.

Legend:

Note 1:

2:

3:

4:

I = input O = output

I/O = input/output

P = power

— = Not used

TTL = TTL input

ST = Schmitt Trigger input

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.

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

The PIC16C71 is not available in SSOP package.

© 1997 Microchip Technology Inc.

DS30272A-page 9

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