PIC16F631 datasheet(283/294 Pages) MICROCHIP

283 / 294 page

DS41262D-page 281

PIC16F631/677/685/687/689/690

APPENDIX A:

DATA SHEET

REVISION HISTORY

Revision A (March 2005)

This is a new data sheet.

Revision B (May 2006)

Added 631/677 part numbers; Added pin summary

tables

after

diagrams;

Incorporated

Golden

Chapters.

Revision C (July 2006)

Revised

Section

4.2.1,

ANSEL

and

ANSELH

Registers; Register 4-3, ANSEL Analog Select; Added

11.3.2, Revised CCP1<1:0> to DC1B<1:0>; Section

11.3.7, Number 4 - Revised CCP1 to DC1B; Figure 11-

5, Revised CCP1 to DC1B; Table 11-4, Revised P1M to

P1M<1:0>; Section 12.3.1, Revised Paragraph 3;

Revised Note 2; Revised Figure 12-6 Title.

Revision D (February 2007)

Removed Preliminary status; Changed PICmicro to

PIC; Replaced Dev. Tool Section; Replaced Package

Drawings.

APPENDIX B:

MIGRATING FROM

OTHER PIC®

DEVICES

This discusses some of the issues in migrating from

other PIC devices to the PIC16F6XX Family of devices.

B.1

PIC16F676 to PIC16F685

TABLE B-1:

FEATURE COMPARISON

Feature

PIC16F676

PIC16F685

Max Operating

Speed

20 MHz

Max Program

Memory (Words)

1024

4096

SRAM (bytes)

128

A/D Resolution

10-bit

Data EEPROM

(Bytes)

128

256

Timers (8/16-bit)

1/1

2/1

Oscillator Modes

Brown-out Reset

Internal Pull-ups

RA0/1/2/4/5

RA0/1/2/4/5,

MCLR

Interrupt-on-change

RA0/1/2/3/4/5 RA0/1/2/3/4/5

Comparator

ECCP+

Ultra Low-Power

Wake-up

Extended WDT

Software Control

Option of WDT/BOR

INTOSC

Frequencies

4 MHz

31 kHz-8 MHz

Clock Switching

Note:

This device has been designed to perform

to the parameters of its data sheet. It has

been tested to an electrical specification

designed to determine its conformance

with these parameters. Due to process

differences in the manufacture of this

device, this device may have different

performance characteristics than its earlier

version. These differences may cause this

device to perform differently in your

application than the earlier version of this

device.

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