English
Language : 

PIC16F946 Datasheet, PDF (5/274 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
PIC16F946
Table of Contents
1.0 Device Overview .......................................................................................................................................................................... 5
2.0 Memory Organization ................................................................................................................................................................. 11
3.0 I/O Ports ..................................................................................................................................................................................... 27
4.0 Clock Sources ............................................................................................................................................................................ 71
5.0 Timer0 Module ........................................................................................................................................................................... 83
6.0 Timer1 Module With Gate Control.............................................................................................................................................. 87
7.0 Timer2 Module ........................................................................................................................................................................... 93
8.0 Comparator Module.................................................................................................................................................................... 95
9.0 Liquid Crystal Display (LCD) Driver Module............................................................................................................................. 103
10.0 Programmable Low-Voltage Detect (PLVD) Module................................................................................................................ 131
11.0 Addressable Universal Synchronous Asynchronous Receiver Transmitter (USART).............................................................. 133
12.0 Analog-to-Digital Converter (A/D) Module................................................................................................................................ 149
13.0 Data EEPROM and Flash Program Memory Control ............................................................................................................... 159
14.0 SSP Module Overview ............................................................................................................................................................. 165
15.0 Capture/Compare/PWM Modules ............................................................................................................................................ 183
16.0 Special Features of the CPU.................................................................................................................................................... 191
17.0 Instruction Set Summary .......................................................................................................................................................... 213
18.0 Development Support............................................................................................................................................................... 223
19.0 Electrical Specifications............................................................................................................................................................ 229
20.0 DC and AC Characteristics Graphs and Tables....................................................................................................................... 231
21.0 Packaging Information.............................................................................................................................................................. 255
Appendix A: Data Sheet Revision History.......................................................................................................................................... 259
Appendix B: Migrating From Other PICmicro® Devices .................................................................................................................... 259
Appendix C: Conversion Considerations ........................................................................................................................................... 260
Index .................................................................................................................................................................................................. 261
On-line Support .................................................................................................................................................................................. 269
Systems Information and Upgrade Hot Line ...................................................................................................................................... 269
Reader Response .............................................................................................................................................................................. 270
Product Identification System ............................................................................................................................................................ 271
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
enhanced as new volumes and updates are introduced.
If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
E-mail at docerrors@microchip.com or fax the Reader Response Form in the back of this data sheet to (480) 792-4150. We
welcome your feedback.
Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000A is version A of document DS30000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current
devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision
of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
• Microchip’s Worldwide Web site; http://www.microchip.com
• Your local Microchip sales office (see last page)
When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are
using.
Customer Notification System
Register on our web site at www.microchip.com to receive the most current information on all of our products.
© 2005 Microchip Technology Inc.
Preliminary
DS41265A-page 3