PIC16F194X/16LF194X 64-Pin 8-Bit Flash Microcontroller Product Brief High-Performance RISC CPU: Peripheral Features: • Only 49 Instructions to Learn • Operating Speed: - DC – 32 MHz clock input - DC – 125 ns instruction cycle • Interrupt Capability with Automatic Context Saving • 16-Level Deep Hardware Stack with Optional Overflow/Underflow Reset • Direct, Indirect and Relative Addressing modes: - Two full 16-bit File Select Registers (FSRs) - FSRs can read program and data memory • Integrated LCD Controller: - Up to 184 segments - Variable clock input - Contrast control - Internal voltage reference selections • Up to 53 I/O Pins and 1 Input-only Pin: - High current sink/source for LED drivers - Individually programmable interrupt-onchange pins - Individually programmable weak pull-ups • Timer0: 8-Bit Timer/Counter with 8-Bit Programmable Prescaler • Enhanced Timer1: - 16-bit timer/counter with prescaler - External Gate Input mode - Dedicated low-power 32 kHz oscillator driver • Timer2, 4, 6: 8-Bit Timer/Counter with 8-Bit Period Register, Prescaler and Postscaler • Two Capture/Compare/PWM modules (CCP): - Software selectable time bases • Three Enhanced Capture, Compare, PWM modules (ECCP): - Software selectable time bases - Auto-shutdown and auto-restart - PWM steering • Two Master Synchronous Serial Ports (MSSP) with SPI and I2CTM with: - 7-bit address masking - SMBus/PMBusTM compatibility • Two Enhanced Universal Synchronous Asynchronous Receiver Transmitters (EUSART): - RS-232, RS-485 and LIN compatible - Auto-Baud Detect - Auto-wake-up on start • SR Latch (Integrated 555 Timer): - Multiple Set/Reset input options • Analog-to-Digital Converter (ADC): - 10-bit resolution - Up to 17 channels • 3 Comparators: - Rail-to-rail inputs/outputs - Power mode control - Software controllable hysteresis • Voltage Reference module: - Fixed Voltage Reference (FVR) with 1.024V, 2.048V and 4.096V output levels - 5-bit rail-to-rail resistive DAC with positive and negative reference selection • mTouch™ Oscillator Module - 17 channels for button, sensor, or slider input Special Microcontroller Features: • Precision Internal Oscillator: - Factory calibrated to ±1%, typical - Software selectable frequency range from 32 MHz to 31 kHz • 31 kHz Low-Power Internal Oscillator • External Oscillator Block with: - 4 crystal/resonator modes up to 32 MHz - 3 external clock modes up to 32 MHz • 4x Phase Locked Loop (PLL) • Fail-Safe Clock Monitor • Two-Speed Start-up • Power-Saving Sleep mode • Power-on Reset (POR) • Power-up Timer (PWRT) • Oscillator Start-up Timer (OST) • Brown-out Reset (BOR) with Selectable Trip Point • Extended Watch-Dog Timer (WDT) • In-Circuit Serial Programming™ (ICSP™) via two pins • In-Circuit Debug (ICD) via Two Pins • Enhanced Low-Voltage Programming (LVP) • Operating Voltage Range: - 1.8V to 3.6V (PIC16LF194X) - 1.8V to 5.5V (PIC16F194X) • Programmable Code Protection • Self-Programmable under Software Control Low-Power Features: • Standby Current (PIC16LF194X): - 100 nA @ 1.8V, typical • Operating Current (PIC16LF194X): - 150 μA @ 1 MHz, 1.8V, typical • Low-Power Watchdog Timer Current (PIC16LF194X): - 1.0 μA @ 1.8V, typical © 2008 Microchip Technology Inc. Advance Information DS41366A-page 1 PIC16F194X/16LF194X TABLE 1: FAMILY TYPES Program Data Memory SRAM 10-bit A/D EEPROM I/Os Flash (bytes) (ch) (bytes) (words) Device PIC16F1946 PIC16LF1946 PIC16F1947 PIC16LF1947 8192 8192 16384 16384 512 512 1024 1024 54 54 54 54 EUSART 4/1 4/1 4/1 4/1 2 2 2 2 17 17 17 17 LCD I2C™ CCP/ segments/ and SPI ECCP commons 2 2 2 2 2/3 2/3 2/3 2/3 46/4 46/4 46/4 46/4 RD5/P1C/SEG5/SDI2/SDA2 RD6/P1B/SEG6/SCK2/SCL2 RD7/SEG7/SS2 RD4/P3B/SEG4/SDO2 RD3/P3C/SEG3 RD2/P2B/SEG2 RD1/P2C/SEG1 VSS RD0/P2D/SEG0 RE4/P3B/COM1 RE5/P1C/COM2 RE2/P2B/VLCD3 RE3/P3C/COM0 TQFP VDD 64-PIN TQFP PACKAGE DIAGRAM FOR PIC16F1946/1947 RE6/P1B/COM3 RE7/CCP2/P2A/SEG31 FIGURE 1: 256 256 256 256 Timers 8/16-bit 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 VLCD2/P2C/RE1 VLCD1/P2D/RE0 SEG42/P3A/CCP3/RG0 SEG43/C3OUT/CPS15/AN15/TX2/CK2/RG1 SEG44/C3IN+/CPS14/AN14/RX2/DT2/RG2 SEG45/P3D/CCP4/C3IN0-/CPS13/AN13/RG3 VPP/MCLR/RG5 SEG26/P1D/CCP5/C3IN1-/CPS12/AN12/RG4 VSS VCA(1)P SEG25/SS1/C123IN3-/CPS5/AN5/RF7 SEG24/C1IN+/CPS11/AN11/RF6 SEG23/DACOUT/C12IN1-/CPS10/AN10/RF5 SEG22/C2IN+/CPS9/AN9/RF4 SEG21/C123IN2-/CPS8/AN8/RF3 SEG20/SRQ/C1OUT/CPS7/AN7/RF2 48 47 46 45 1 2 3 4 5 6 7 8 9 10 11 12 13 14 44 43 42 41 40 PIC16F194X/ PIC16LF194X 39 38 37 36 35 15 16 34 33 RB0/INT/SRI/FLT0/SEG30 RB1/SEG8 RB2/SEG9 RB3/SEG10 RB4/SEG11 RB5/T1G/SEG29 RB6/SEG38/ICSPCLK/ICDCLK VSS RA6/OSC2/CLKOUT/SEG36 RA7/OSC1/CLKIN/SEG37 VDD RB7/SEG39/ICSPDAT/ICDCLK RC5/SDO1/SEG12 RC4/SDI1/SDA1/SEG16 RC3/SCK1/SCL1/SEG17 RC2/CCP1/P1A/SEG13 Legend: Note 1: SEG28/DT1/RX1/RC7 SEG27/CK1/TX1/RC6 SEG40/T1CKI/T1OSO/RC0 SEG14/T0CKI/RA4 SEG32/CCP2/P2A/T1OSI/RC1 SEG15/CPS4/AN4/RA5 VSS VDD SEG33/CPS0/AN0/RA0 SEG18/CPS1/AN1/RA1 SEG34/CPS2/VREF-/AN2/RA2 AVSS SEG35/CPS3/VREF+/AN3/RA3 AVDD SEG41/C12IN0-/CPS16/AN16/RF0 SEG19/SRNQ/C2OUT/CPS6/AN6/RF1 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Pin functions in bold can be redirected via software. PIC16F194X devices only. DS41366A-page 2 Advance Information © 2008 Microchip Technology Inc. PIC16F194X/16LF194X Comparator SR Latch Timers CCP EUSART MSSP LCD AN0 CPS0 — — — — — — SEG33 — — — 23 AN1 CPS1 — — — — — — SEG18 — — — RA2 22 AN2/ VREF- CPS2 — — — — — — SEG34 — — — RA3 21 AN3/ VREF+ CPS3 — — — — — — SEG35 — — — RA4 28 — — — — T0CKI — — — SEG14 — — — RA5 27 AN4 CPS4 — — — — — — SEG15 — — — RA6 40 — — — — — — — — SEG36 — — OSC2/ CLKOUT RA7 39 — — — — — — — — SEG37 — — OSC1/ CLKIN RB0 48 — — — SRI — FLT0 — — SEG30 INT/ IOC Y — Basic Cap Sense 24 RA1 Pull-up A/D RA0 Interrupt 64-Pin TQFP 64-PIN DEVICE ALLOCATION TABLE (PIC16F1946/1947) I/O TABLE 2: RB1 47 — — — — — — — — SEG8 IOC Y — RB2 46 — — — — — — — — SEG9 IOC Y — RB3 45 — — — — — — — — SEG10 IOC Y — RB4 44 — — — — — — — — SEG11 IOC Y — RB5 43 — — — — T1G — — — SEG29 IOC Y — RB6 42 — — — — — — — — SEG38 IOC Y ICSPCLK/ ICDCLK RB7 37 — — — — — — — — SEG39 IOC Y ICSPDAT/ ICDDAT RC0 30 — — — — T1OSO/ T1CKI — — — SEG40 — — — RC1 29 — — — — T1OSI CCP2(1)/ P2A(1) — — SEG32 — — — RC2 33 — — — — — CCP1/ P1A — — SEG13 — — — RC3 34 — — — — — — — SCK1/ SCL1 SEG17 — — — RC4 35 — — — — — — — SDI1/ SDA1 SEG16 — — — RC5 36 — — — — — — — SDO1 SEG12 — — — RC6 31 — — — — — — TX1/CK1 — SEG27 — — — RC7 32 — — — — — — RX1/DT1 — SEG28 — — — RD0 58 — — — — — P2D(1) — — SEG0 — — — RD1 55 — — — — — P2C(1) — — SEG1 — — — RD2 54 — — — — — P2B(1) — — SEG2 — — — RD3 53 — — — — — P3C(1) — — SEG3 — — — RD4 52 — — — — — P3B(1) SDO2 SEG4 — — — RD5 51 — — — — — P1C(1) SDI2/ SDA2 SEG5 — — — RD6 50 — — — — — P1B(1) SCK2/ SCL2 SEG6 — — — RD7 49 — — — — — — SS2 SEG7 — — — RE0 2 — — — — — P2D(1) — — VLCD1 — — — RE1 1 — — — — — P2C(1) — — VLCD2 — — — RE2 64 — — — — — P2B(1) — — VLCD3 — — — — RE3 63 — — — — — P3C(1) — — COM0 — — RE4 62 — — — — — P3B(1) — — COM1 — — — RE5 61 — — — — — P1C(1) — — COM2 — — — RE6 60 — — — — — P1B(1) — — COM3 — — — — CCP2(1)/ P2A(1) — — SEG31 — — — RE7 Note 1: 2: 59 — — — — Pin functions in bold can be redirected via software. Weak pull-up always enabled when MCLR is enabled, otherwise the pull-up is under user control. © 2008 Microchip Technology Inc. Advance Information DS41366A-page 3 — — — — SEG41 — — — SRNQ — — — — SEG19 — — — RF2 16 AN7 CPS7 C1OUT SRQ — — — — SEG20 — — — RF3 15 AN8 CPS8 C123IN2- — — — — — SEG21 — — — — RF4 14 AN9 CPS9 C2IN+ — RF5 13 AN10 CPS10 C12IN1DACOUT — RF6 12 AN11 CPS11 C1IN+ — RF7 11 AN5 CPS5 C123IN3- — — RG0 3 — — — — — — Basic CCP — C2OUT Pull-up Timers C12IN0- CPS6 Interrupt Comparator CPS16 AN6 LCD Cap Sense AN16 17 MSSP A/D 18 EUSART 64-Pin TQFP RF0 RF1 SR Latch I/O PIC16F194X/16LF194X — — — SEG22 — — — — — — SEG23 — — — — — — SEG24 — — — — — SS1 SEG25 — — — CCP3 P3A — — SEG42 — — — RG1 4 AN15 CPS15 C3OUT — — — TX2/CK2 SEG43 — — — RG2 5 AN14 CPS14 C3IN+ — — — RX2/DT2 SEG44 — — — RG3 6 AN13 CPS13 C3IN0- — — CCP4 P3D — — SEG45 — — — RG4 8 AN12 CPS12 C3IN1- — — CCP5 P1D — — SEG26 — — — RG5 7 — — — — — — — — — — Y(2) MCLR/VPP VDD 26, 38, 57 — — — — — — — — — — — VDD VSS 9, 25, 41, 56 — — — — — — — — — — — VSS AVDD 19 — — — — — — — — — — — AVDD AVSS 20 — — — — — — — — — — — AVSS VCAP 10 — — — — — — — — — — — VCAP Note 1: 2: Pin functions in bold can be redirected via software. Weak pull-up always enabled when MCLR is enabled, otherwise the pull-up is under user control. DS41366A-page 4 Advance Information © 2008 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 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 WARRANTIES 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 devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, rfPIC, SmartShunt and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. FilterLab, Linear Active Thermistor, MXDEV, MXLAB, 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, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM, PICDEM.net, PICtail, PIC32 logo, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, WiperLock and ZENA 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. © 2008, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, 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. © 2008 Microchip Technology Inc. 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