PIC12LF1840T48A/T39A PIC12LF1840T48A/T39A Programming Specification This document includes the programming specifications for the following devices: 1.1 Five pins are needed for ICSP™ programming. Two additional pins should be connected to ground during programming. The pins are listed in Table 1-1. • PIC12LF1840T48A • PIC12LF1840T39A 1.0 Pin Utilization OVERVIEW The PIC12LF1840T48A/T39A is a dual-die device containing a Microchip PIC12LF1840 microcontroller and an integrated transmitter. The dies are electrically isolated. Since the microcontroller portion of this device is a standard PIC12LF1840, programming should be done according to its programming specification, “PIC16(L)F1847/12(L)F1840 Memory Programming Specification” (DS41439). The transmitter memory. contains no user-programmable Care should be taken to prevent the transmitter from transmitting during the programming cycle. In-Circuit Serial Programming™ (ICSP™) pins should not be connected to the DATA pin. If the transmitter VDD supply is separate from the microcontroller, it should be kept at VSS during the programming cycle. TABLE 1-1: Pin Name PIN DESCRIPTIONS DURING PROGRAMMING During Programming Function Pin Type RA1 ICSPCLK I/O Clock Input – Schmitt Trigger Input RA0 ICSPDAT I/O Data Input/Output – Schmitt Trigger Input Program/Verify mode P(1) Program mode Select/Programming Power Supply VDD P Microcontroller Power Supply VSS VSS P Microcontroller Ground VDDRF VDD P RF Power Supply VSSRF VSS P RF Ground RA3/MCLR/VPP VDD Pin Description Legend: I = Input, O = Output, P = Power Note 1: The programming high voltage is internally generated. To activate the Program/Verify mode, high voltage needs to be applied to MCLR input. Since the MCLR is used for a level source, MCLR does not draw any significant current. 2011-2012 Microchip Technology Inc. Advance Information DS41595B-page 1 PIC12LF1840T48A/T39A 2.0 DEVICE PINOUTS The pin diagram for the PIC12LF1840T48A/T39A is shown in Figure 2-1. The pins that are required for programming are listed in Table 1-1 and shown in bold lettering in the pin diagram. DS41595B-page 2 Advance Information 2011-2012 Microchip Technology Inc. 14-PIN DIAGRAM, PIC12LF1840T48A/T39A (TSSOP) 1 14 Vss 2 13 RA0/AN0/CPS0/C1IN+/DACOUT/TX(1)/CK(1)/SDO(1)/SS(1)/P1B(1)/MDOUT/ICSPDAT (1)/P1B(1)/TX(1)/CK(1)/SDO(1)/CLKR/C1IN1-/T1OSO/CLKOUT/OSC2/CPS3/AN3/RA4 3 12 RA1/AN1/CPS1/VREF/C1IN0-/SRI/RX(1)/DT(1)/SCL/SCK/MDMIN/ICSPCLK MCLR/VPP/T1G(1)/SS(1)/RA3 4 11 RA2/AN2/CPS2/C1OUT/SRQ/T0CKI/CCP1(1)/P1A(1)/FLT0/SDA/SDI/INT/MDCIN1 VDDRF 5 10 XTAL CTRL 6 9 DATA RFOUT 7 8 VSSRF MDCIN2/T1G Pin function is selectable via the APFCON register. DS41595B-page 3 PIC12LF1840T48A/T39A Advance Information Note 1: PIC12LF1840T39A VDD RX(1)/DT(1)/CCP1(1)/P1A(1)/SRNQ/T1CKI/T1OSI/OSC1/CLKIN/RA5 PIC12LF1840T48A 2011-2012 Microchip Technology Inc. FIGURE 2-1: PIC12LF1840T48A/T39A APPENDIX A: REVISION HISTORY Revision A (08/2011) Initial release of this document. Revision B (03/2012) Added the PIC12LF1840T39A device. DS41595B-page 4 Advance Information 2011-2012 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, dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL 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, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, 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. © 2011-2012, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. ISBN: 9781620761151 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 == 2011-2012 Microchip Technology Inc. Microchip received ISO/TS-16949:2009 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. 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