Datasheet

© 2009 Microchip Technology Inc. DS41203E-page 193
PIC16F688
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
Revised Electrical Section and added Char Data.
Added Golden Chapters.
Revision D
Replaced Package Drawings; Revised Product ID (SL
Package to 3.90 mm); Replaced PICmicro with PIC;
Replaced Dev. Tool Section.
Revision E
Updated Peripheral Features, page 1; Deleted Note 1,
page 13; Updated the Typical Info. in Param. OS18,
Table 14-3; Added sub-section 10.3.2 (Auto-Baud
Overflow, page 100) to Chapter 10; Added SOIC,
TSSOP, QFN Package Land Patterns.
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 PIC16F688
TABLE B-1: FEATURE COMPARISON
Feature PIC16F676 PIC16F688
Max Operating Speed 20 MHz 20 MHz
Max Program Memory
(Words)
1024 4K
SRAM (Bytes) 64 256
A/D Resolution 10-bit 10-bit
Data EEPROM (bytes) 128 256
Timers (8/16-bit) 1/1 1/1
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
EUSART N Y
Ultra Low-Power
Wake-up
NY
Extended WDT N Y
Software Control
Option of WDT/BOR
NY
INTOSC Frequencies 4 MHz 32 kHz -
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.