Datasheet

© 2007 Microchip Technology Inc. DS41202F-page 179
PIC16F684
APPENDIX A: DATA SHEET
REVISION HISTORY
Revision A
This is a new data sheet.
Revision B
Rewrites of the Oscillator and Special Features of the
CPU Sections. General corrections to Figures and
formatting.
Revision C
Revision D
Added Characterization Data. Updated Electrical
Specifications. Incorporated Golden Chapter Sections
for the following:
• Section 3.0 “Oscillator Module (With Fail-Safe
Clock Monitor)”
• Section 5.0 “Timer0 Module”
• Section 6.0 “Timer1 Module with Gate Control”
• Section 7.0 “Timer2 Module”
• Section 8.0 “Comparator Module”
• Section 9.0 “Analog-to-Digital Converter (ADC)
Module”
• Section 11.0 “Enhanced Capture/Compare/PWM
(With Auto-Shutdown and Dead Band) Module”
Revision E
Updated Package Drawings; Replace PICmicro with
PIC.
Revision F (03/2007)
Replaced Package Drawings (Rev. AM); Replaced
Development Support Section.
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 PIC16F684
TABLE B-1: FEATURE COMPARISON
Feature PIC16F676 PIC16F684
Max Operating
Speed
20 MHz 20 MHz
Max Program
Memory (Words)
1024 2048
SRAM (bytes) 64 128
A/D Resolution 10-bit 10-bit
Data EEPROM
(Bytes)
128 256
Timers (8/16-bit) 1/1 2/1
Oscillator Modes 8 8
Brown-out Reset Y Y
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 1 2
ECCP N Y
Ultra Low-Power
Wake-Up
NY
Extended WDT N Y
Software Control
Option of WDT/BOR
NY
INTOSC
Frequencies
4MHz 32kHz-
8MHz
Clock Switching N Y
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.