PIC16F684 14-Pin Low Power FLASH Microcontroller Product Brief HIGH PERFORMANCE RISC CPU LOW POWER FEATURES • Only 35 instructions to learn - All single cycle instructions except branches • Operating speed: - DC - 20 MHz oscillator/clock input - DC - 200 ns instruction cycle • Interrupt capability • 8-level deep hardware stack • Direct, Indirect, and Relative Addressing modes • Standby Current: - 1 nA @ 2.0V, typical • Operating Current: - 8.5 µA @ 32 kHz, 2.0V, typical - 100 µA @ 1 MHz, 2.0V, typical PERIPHERAL FEATURES • 11 I/O pins and 1 input-only pin - High current source/sink for direct LED drive - Interrupt-on-pin change - Individually programmable weak pull-ups - Low power wake-up • Analog comparator module with: - Two analog comparators - Programmable on-chip voltage reference (CVREF) module (% of VDD) - Comparator inputs and outputs externally accessible • A/D Converter - 10-bit resolution and 8 channels • Timer0: 8-bit timer/counter with 8-bit programmable prescaler • Enhanced Timer1 - 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 SPECIAL MICROCONTROLLER FEATURES • Precision Internal Oscillator - Factory calibrated to ±1% - Software selectable frequency range of 8 MHz to 32 kHz - Two-speed Start-up mode - Crystal fail detect for critical applications - Clock mode switching during operation for low power operation • Power saving SLEEP mode • Wide operating voltage range (2.0V - 5.5V) • Industrial and extended temperature range • Power-on Reset (POR) • Power-up Timer (PWRT) and Oscillator Start-up Timer (OST) • 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/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 Program Memory Data Memory Device PIC16F684 FLASH (words) SRAM (bytes) EEPROM (bytes) 2048 128 256 2003 Microchip Technology Inc. I/O 10-bit A/D (ch) Comparators Timers 8/16-bit 12 8 2 2/1 Advance Information DS40047B-page 1 PIC16F684 Pin Diagram 14-pin PDIP, SOIC, TSSOP DS40047B-page 2 1 2 3 4 5 6 7 PIC16F684 VDD RA5/T1CKI/OSC1/CLKIN RA4/AN3/T1G/OSC2/CLKOUT RA3/MCLR/VPP RC5/ECCP/PA RC4/C2OUT/PB RC3/AN7/PC 14 13 12 11 10 9 8 VSS RA0/AN0/C1IN+/ICSPDAT RA1/AN1/C1IN-/VREF/ICSPCLK RA2/AN2/T0CKI/INT/C1OUT RC0/AN4/C2IN+ RC1/AN5/C2INRC2/AN6/PD Advance Information 2003 Microchip Technology Inc. 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 intended through suggestion only and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. 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 intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, KEELOQ, MPLAB, PIC, PICmicro, PICSTART, PRO MATE and PowerSmart are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. FilterLab, microID, MXDEV, MXLAB, PICMASTER, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Accuron, Application Maestro, dsPIC, dsPICDEM, dsPICDEM.net, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, microPort, Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, PICC, PICkit, PICDEM, PICDEM.net, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPIC, Select Mode, SmartSensor, SmartShunt, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. Serialized Quick Turn Programming (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. © 2003, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999 and Mountain View, California in March 2002. The Company’s quality system processes and procedures are QS-9000 compliant for its PICmicro® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, non-volatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001 certified. 2003 Microchip Technology Inc. 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