PIC16F818T-ISS Просмотр технического описания (PDF) - Microchip Technology

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PIC16F818T-ISS

18/20-Pin Enhanced Flash Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC16F818/819

FIGURE 1-1:

PIC16F818/819 BLOCK DIAGRAM

Flash

Program

Memory

1K/2K x 14

Program

Bus

14

Instruction reg

13

Program Counter

Data Bus

8

8-Level Stack

(13-bit)

RAM

File

Registers

128/256 x 8

RAM Addr(1)

9

Addr MUX

Direct Addr 7

Indirect

8 Addr

FSR reg

Status reg

8

Instruction

Decode &

Control

RA7/OSC1/CLKI

RA6/OSC2/CLKO

Timing

Generation

Power-up

Timer

Oscillator

Start-up Timer

Power-on

Reset

Watchdog

Timer

Brown-out

Reset

3

MUX

ALU

8

W reg

PORTA

PORTB

RA0/AN0

RA1/AN1

RA2/AN2/VREF-

RA3/AN3/VREF+

RA4/AN4/T0CKI

RA5/MCLR/VPP

RA6/OSC2/CLKO

RA7/OSC1/CLKI

RB0/INT

RB1/SDI/SDA

RB2/SDO/CCP1

RB3/CCP1/PGM

RB4/SCK/SCL

RB5/SS

RB6/T1OSO/T1CKI/PGC

RB7/T1OSI/PGD

Timer0

MCLR VDD, VSS

Timer1

Timer2

Data EE

128/256 Bytes

10-bit, 5-channel

A/D

Synchronous

Serial Port

CCP1

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

DS39598E-page 6

 2004 Microchip Technology Inc.

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