PIC16F877ATI/PTG

更新时间： 2024-02-01 10:55:09

品牌	Logo	应用领域
美国微芯 - MICROCHIP		闪存微控制器和处理器
页数	文件大小	规格书
200页	3544K
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PIC16F877ATI/PTG 数据手册

PIC16F87X

There are four devices (PIC16F873, PIC16F874,

PIC16F876 and PIC16F877) covered by this data

sheet. The PIC16F876/873 devices come in 28-pin

packages and the PIC16F877/874 devices come in 40-

pin packages. The 28-pin devices do not have a Paral-

lel Slave Port implemented.

1.0

DEVICE OVERVIEW

This document contains device-specific information.

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 comple-

mentary document to this data sheet, and is highly rec-

ommended reading for a better understanding of the

device architecture and operation of the peripheral

modules.

The following two figures are device block diagrams

sorted by pin number; 28-pin for Figure 1-1 and 40-pin

for Figure 1-2. The 28-pin and 40-pin pinouts are listed

in Table 1-1 and Table 1-2, respectively.

FIGURE 1-1: PIC16F873 AND PIC16F876 BLOCK DIAGRAM

Device

Program

FLASH

Data Memory

Data

EEPROM

PIC16F873

PIC16F876

192 Bytes

368 Bytes

128 Bytes

256 Bytes

PORTA

Data Bus

Program Counter

RA0/AN0

RA1/AN1

RA2/AN2/VREF-

RA3/AN3/VREF+

RA4/T0CKI

FLASH

Program

Memory

RAM

File

Registers

8 Level Stack

(13-bit)

RA5/AN4/SS

Program

Bus

RAM Addr (1)

PORTB

RB0/INT

RB1

RB2

RB3/PGM

RB4

Addr MUX

Instruction reg

Indirect

Addr

Direct Addr

RB5

FSR reg

RB6/PGC

RB7/PGD

STATUS reg

PORTC

RC0/T1OSO/T1CKI

RC1/T1OSI/CCP2

RC2/CCP1

RC3/SCK/SCL

RC4/SDI/SDA

RC5/SDO

MUX

Power-up

Timer

Oscillator

Start-up Timer

Instruction

Decode &

Control

RC6/TX/CK

RC7/RX/DT

ALU

Power-on

Reset

Timing

Generation

Watchdog

Timer

W reg

OSC1/CLKIN

OSC2/CLKOUT

Brown-out

Reset

In-Circuit

Debugger

Low-Voltage

Programming

MCLR VDD, VSS

Timer2

Timer0

Timer1

10-bit A/D

Data EEPROM

Synchronous

Serial Port

USART

CCP1,2

Note 1: Higher order bits are from the STATUS register.

1999 Microchip Technology Inc.

DS30292B-page 5

1 2 3 456 7 8...200

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