PIC16F689T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F689T-I/SO

20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC16F631/677/685/687/689/690

FIGURE 1-3:

PIC16F685 BLOCK DIAGRAM

Configuration

Flash

4K x 14

Program

Memory

INT

13

Program Counter

8-Level Stack (13-bit)

Program 14

Bus

Instruction Reg

Direct Addr

7

8

Data Bus

8

RAM

256 bytes

File

Registers

RAM Addr

9

Addr MUX

Indirect

8

Addr

FSR Reg

STATUS Reg

OSC1/CLKI

Instruction

Decode and

Control

Timing

OSC2/CLKO Generation

Internal

Oscillator

Block

ULPWU

Power-up

Timer

Oscillator

Start-up Timer

Power-on

Reset

Watchdog

Timer

Brown-out

Reset

3

MUX

ALU

8

W Reg

MCLR VDD VSS

T0CKI

T1G T1CKI

PORTA

PORTB

RA0

RA1

RA2

RA3

RA4

RA5

RB4

RB5

RB6

RB7

PORTC

RC0

RC1

RC2

RC3

RC4

RC5

RC6

RC7

CCP1/

P1A P1B P1C P1D

Ultra Low-Power

Wake-up

Timer0

Timer1

Timer2

ECCP+

AN8 AN9 AN10 AN11

Analog-to-Digital Converter

2

Analog Comparators

and Reference

EEDAT

8 256 Bytes

Data

EEPROM

EEADR

VREF AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 C1IN- C1IN+ C1OUT C2IN- C2IN+ C2OUT

© 2008 Microchip Technology Inc.

DS41262E-page 11

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