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Sheet目录3890

77页 78页 79页 80页 [81页]82页 83页 84页 85页

2002 Microchip Technology Inc.

DS30325B-page 5

PIC16F7X

1.0

DEVICE OVERVIEW

This document contains device specific information

about the following devices:

PIC16F73

PIC16F74

PIC16F76

PIC16F77

PIC16F73/76 devices are available only in 28-pin pack-

ages, while PIC16F74/77 devices are available in

40-pin and 44-pin packages. All devices in the

PIC16F7X family share common architecture, with the

following differences:

The PIC16F73 and PIC16F76 have one-half of

the total on-chip memory of the PIC16F74 and

PIC16F77

The 28-pin devices have 3 I/O ports, while the

40/44-pin devices have 5

The 28-pin devices have 11 interrupts, while the

40/44-pin devices have 12

The 28-pin devices have 5 A/D input channels,

while the 40/44-pin devices have 8

The Parallel Slave Port is implemented only on

the 40/44-pin devices

The available features are summarized in Table 1-1.

Block diagrams of the PIC16F73/76 and PIC16F74/77

devices are provided in Figure 1-1 and Figure 1-2,

respectively. The pinouts for these device families are

listed in Table 1-2 and Table 1-3.

Additional information may be found in the PICmicro

Mid-Range Reference Manual (DS33023), which may

be obtained from your local Microchip Sales Represen-

tative or downloaded from the Microchip website. The

Reference Manual should be considered a complemen-

tary document to this data sheet, and is highly recom-

mended reading for a better understanding of the device

architecture and operation of the peripheral modules.

TABLE 1-1:

PIC16F7X DEVICE FEATURES

Key Features

PIC16F73

PIC16F74

PIC16F76

PIC16F77

Operating Frequency

DC - 20 MHz

RESETS (and Delays)

POR, BOR

(PWRT, OST)

POR, BOR

(PWRT, OST)

POR, BOR

(PWRT, OST)

POR, BOR

(PWRT, OST)

FLASH Program Memory

(14-bit words)

Data Memory (bytes)

192

368

Interrupts

I/O Ports

Ports A,B,C

Ports A,B,C,D,E

Ports A,B,C

Ports A,B,C,D,E

Timers

333

Capture/Compare/PWM Modules

Serial Communications

SSP, USART

Parallel Communications

—

PSP

—

PSP

8-bit Analog-to-Digital Module

5 Input Channels 8 Input Channels 5 Input Channels 8 Input Channels

Instruction Set

35 Instructions

Packaging

28-pin DIP

28-pin SOIC

28-pin SSOP

28-pin MLF

40-pin PDIP

44-pin PLCC

44-pin TQFP

28-pin DIP

28-pin SOIC

28-pin SSOP

28-pin MLF

40-pin PDIP

44-pin PLCC

44-pin TQFP

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