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Microchip Technology
Microchip Technology

PIC16F684 Datasheet

8-Bit CMOS Microcontrollers


PIC16F684 Datasheet Preview


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PIC16F684
Data Sheet
14-PinDataSheet4U.com Flash-Based, 8-Bit
CMOS Microcontrollers with
nanoWatt Technology
DataShee
DataSheet4U.com
2004 Microchip Technology Inc.
DataSheet4 U .com
Preliminary
DS41202C
Page 1

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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.
et4U.com
Information contained in this publication regarding device
Trademarks
applications and the like is intended through suggestion only
The Microchip name and logo, the Microchip logo, Accuron,
and may be superseded by updates. It is your responsibility to
dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART,
ensure that your application meets with your specifications.
PRO MATE, PowerSmart, rfPIC, and SmartShunt are
No representation or warranty is given and no liability is
registered trademarks of Microchip Technology Incorporated
assumed by Microchip Technology Incorporated with respect
in the U.S.A. and other countries.
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from sDucahtaSheet4AUm.pcLoamb, FilterLab, MXDEV, MXLAB, PICMASTER, SEEVAL,
use or otherwise. Use of Microchip’s products as critical
SmartSensor and The Embedded Control Solutions Company
components in life support systems is not authorized except
are registered trademarks of Microchip Technology
with express written approval by Microchip. No licenses are
Incorporated in the U.S.A.
conveyed, implicitly or otherwise, under any intellectual
property rights.
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.
DataShee
DataSheet4U.com
DS41202C-page ii
DataSheet4 U .com
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, KEELOQ® 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.
Preliminary
2004 Microchip Technology Inc.
Page 2

www.DataSheet4U.com
PIC16F684
14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology
et4U.com
High-Performance RISC CPU:
Low-Power Features:
• Only 35 instructions to learn:
• Standby Current:
- All single-cycle instructions except branches
- 1 nA @ 2.0V, typical
• Operating speed:
• Operating Current:
- DC – 20 MHz oscillator/clock input
- DC – 200 ns instruction cycle
- 8.5 µA @ 32 kHz, 2.0V, typical
- 100 µA @ 1 MHz, 2.0V, typical
• Interrupt capability
• Watchdog Timer Current:
• 8-level deep hardware stack
- 1 µA @ 2.0V, typical
• Direct, Indirect and Relative Addressing modes
Peripheral Features:
Special Microcontroller Features:
• 12 I/O pins with individual direction control:
• Precision Internal Oscillator:
- High current source/sink for direct LED drive
- Factory calibrated to ±1%
- Software selectable frequency range of
8 MHz to 31 kHz
- Interrupt-on-pin change
- Individually programmable weak pull-ups
- Ultra Low-power Wake-up (ULPWU)
- Software tunable
• Analog comparator module with:
- Two-speed Start-up mode
- Two analog comparators
- Crystal fail detect for critical applications
- Programmable on-chip voltage reference
- Clock mode switching during operation forDataSheet4U.com (CVREF) module (% of VDD)
power savings
- Comparator inputs and outputs externally
• Power-saving Sleep mode
accessible
• Wide operating voltage range (2.0V-5.5V)
• A/D Converter:
• Industrial and Extended Temperature range
- 10-bit resolution and 8 channels
• Power-on Reset (POR)
• Power-up Timer (PWRT) and Oscillator Start-up
Timer (OST)
• Timer0: 8-bit timer/counter with 8-bit
programmable prescaler
• Enhanced Timer1:
• Brown-out Detect (BOD) with software control
option
• Enhanced low-current Watchdog Timer (WDT)
with on-chip oscillator (software selectable
nominal 268 seconds with full prescaler) with
software enable
• Multiplexed Master Clear with pull-up/input pin
• Programmable code protection
• High Endurance Flash/EEPROM cell:
- 100,000 write Flash endurance
- 1,000,000 write EEPROM endurance
- Flash/Data EEPROM retention: > 40 years
- 16-bit timer/counter with prescaler
- External Gate Input mode
- Option to use OSC1 and OSC2 in LP mode
as Timer1 oscillator if INTOSC mode
selected
• Timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
• Enhanced Capture, Compare, PWM module:
- 16-bit Capture, max resolution 12.5 ns
- Compare, max resolution 200 ns
- 10-bit PWM with 1, 2 or 4 output channels,
programmable “dead time”, max frequency
20 kHz
• In-Circuit Serial ProgrammingTM (ICSPTM) via two
pins
Device
DataSheet4U.comPIC16F684
Program
Memory
Flash
(words)
2048
Data Memory
SRAM
EEPROM
I/O
10-bit A/D
(ch)
Comparators
(bytes)
(bytes)
128
256 12
8
2
Timers
8/16-bit
2/1
DataShee
2004 Microchip Technology Inc.
DataSheet4 U .com
Preliminary
DS41202C-page 1
Page 3
Part Number PIC16F684
Manufactur Microchip Technology
Description 8-Bit CMOS Microcontrollers
Total Page 30 Pages
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