Note the following details of the code protection feature on Microchip devices:
•
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
•
•
•
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR WAR-
RANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED,
WRITTEN OR ORAL, STATUTORY OR OTHERWISE,
RELATED TO THE INFORMATION, INCLUDING BUT NOT
LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE,
MERCHANTABILITY OR FITNESS FOR PURPOSE.
Microchip disclaims all liability arising from this information and
its use. Use of Microchip’s products as critical components in
life support systems is not authorized except with express
written approval by Microchip. No licenses are conveyed,
implicitly or otherwise, under any Microchip intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K
EE
L
OQ
, microID, MPLAB, PIC, PICmicro, PICSTART,
PRO MATE, PowerSmart, rfPIC, and SmartShunt are
registered trademarks of Microchip Technology Incorporated
in the U.S.A. and other countries.
AmpLab, FilterLab, MXDEV, MXLAB, PICMASTER, SEEVAL,
SmartSensor and The Embedded Control Solutions Company
are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, dsPICDEM,
dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,
FanSense, FlexROM, fuzzyLAB, In-Circuit Serial
Programming, ICSP, ICEPIC, Migratable Memory, MPASM,
MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net,
PICLAB, PICtail, PowerCal, PowerInfo, PowerMate,
PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial,
SmartTel and Total Endurance are trademarks of Microchip
Technology Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2004, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 quality system certification for
its worldwide headquarters, design and wafer fabrication facilities in
Chandler and Tempe, Arizona and Mountain View, California in
October 2003. The Company’s quality system processes and
procedures are for its PICmicro
®
8-bit MCUs, K
EE
L
OQ
®
code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
DS30498C-page ii
2004 Microchip Technology Inc.
PIC16F7X7
28/40/44-Pin, 8-Bit CMOS Flash Microcontrollers with
10-Bit A/D and nanoWatt Technology
Low-Power Features:
• Power-Managed modes:
- Primary Run (XT, RC oscillator, 76
µA,
1 MHz, 2V)
- RC_RUN (7
µA,
31.25 kHz, 2V)
- SEC_RUN (9
µA,
32 kHz, 2V)
- Sleep (0.1
µA,
2V)
• Timer1 Oscillator (1.8
µA,
32 kHz, 2V)
• Watchdog Timer (0.7
µA,
2V)
• Two-Speed Oscillator Start-up
Peripheral Features:
• High Sink/Source Current: 25 mA
• Two 8-bit Timers with Prescaler
• Timer1/RTC module:
- 16-bit timer/counter with prescaler
- Can be incremented during Sleep via
external 32 kHz watch crystal
• Master Synchronous Serial Port (MSSP) with
3-wire SPI
TM
and I
2
C
TM
(Master and Slave) modes
• Addressable Universal Synchronous
Asynchronous Receiver Transmitter (AUSART)
• Three Capture, Compare, PWM modules:
- Capture is 16-bit, max. resolution is 12.5 ns
- Compare is 16-bit, max. resolution is 200 ns
- PWM max. resolution is 10 bits
• Parallel Slave Port (PSP) – 40/44-pin devices only
Oscillators:
• Three Crystal modes:
- LP, XT, HS (up to 20 MHz)
• Two External RC modes
• One External Clock mode:
- ECIO (up to 20 MHz)
• Internal Oscillator Block:
- 8 user-selectable frequencies (31 kHz,
125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz,
4 MHz, 8 MHz)
Special Microcontroller Features:
• Fail-Safe Clock Monitor for protecting critical
applications against crystal failure
• Two-Speed Start-up mode for immediate code
execution
• Power-on Reset (POR), Power-up Timer (PWRT)
and Oscillator Start-up Timer (OST)
• Programmable Code Protection
• Processor Read Access to Program Memory
• Power-Saving Sleep mode
• In-Circuit Serial Programming (ICSP) via
two pins
• MPLAB
®
In-Circuit Debug (ICD) via two pins
• MCLR pin function replaceable with input only pin
Analog Features:
• 10-bit, up to 14-channel Analog-to-Digital Converter:
- Programmable Acquisition Time
- Conversion available during Sleep mode
• Dual Analog Comparators
• Programmable Low-Current Brown-out Reset
(BOR) Circuitry and Programmable Low-Voltage
Detect (LVD)
Comparators
Device
Program
Data
Memory
SRAM
(# Single-Word
(Bytes)
Instructions)
4096
4096
8192
8192
368
368
368
368
Interrupts
MSSP
CCP
(PWM) SPI™
3
3
3
3
Yes
Yes
Yes
Yes
Timers
I
2
C™ AUSART 8/16-bit
(Master)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
2/1
2/1
2/1
2/1
I/O
10-bit
A/D (ch)
PIC16F737
PIC16F747
PIC16F767
PIC16F777
25
36
25
36
16
17
16
17
11
14
11
14
2
2
2
2
2004 Microchip Technology Inc.
DS30498C-page 1
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