PIC16LF1902/1903 PIC16LF1902/1903 Family Silicon Errata and Data Sheet Clarification The PIC16LF1902/1903 family devices that you have received conform functionally to the current Device Data Sheet (DS41455B), except for the anomalies described in this document. For example, to identify the silicon revision level using MPLAB IDE in conjunction with a hardware debugger: 1. The silicon issues discussed in the following pages are for silicon revisions with the Device and Revision IDs listed in Table 1. The silicon issues are summarized in Table 2. 2. 3. The errata described in this document will be addressed in future revisions of the PIC16LF1902/1903 silicon. 4. Note: This document summarizes all silicon errata issues from all revisions of silicon, previous as well as current. Only the issues indicated in the last column of Table 2 apply to the current silicon revision (A5). 5. Data Sheet clarifications and corrections start on page 5, following the discussion of silicon issues. Note: The silicon revision level can be identified using the current version of MPLAB® IDE and Microchip’s programmers, debuggers, and emulation tools, which are available at the Microchip corporate web site (www.microchip.com). TABLE 1: Using the appropriate interface, connect the device to the hardware debugger. Open an MPLAB IDE project. Configure the MPLAB IDE project for the appropriate device and hardware debugger. Based on the version of MPLAB IDE you are using, do one of the following: a) For MPLAB IDE 8, select Programmer > Reconnect. b) For MPLAB X IDE, select Window > Dashboard and click the Refresh Debug Tool Status icon ( ). Depending on the development tool used, the part number and Device Revision ID value appear in the Output window. If you are unable to extract the silicon revision level, please contact your local Microchip sales office for assistance. The DEVREV values for the various PIC16LF1902/ 1903 silicon revisions are shown in Table 1. SILICON DEVREV VALUES DEVICE ID<13:0> Part Number DEV<8:0> (1) REV<4:0> Silicon Revision(2) A2 A4 A5 PIC16LF1902 01 1100 001 0 0010 0 0100 0 0101 PIC16LF1903 01 1100 000 0 0010 0 0100 0 0101 Note 1: 2: The Device ID is located in the configuration memory at address 8006h. Refer to the “PIC16(L)F193X/(L)F194X/LF190X Memory Programming Specification” (DS41397) for detailed information on Device and Revision IDs for your specific device. 2011-2013 Microchip Technology Inc. DS80000523E-page 1 PIC16LF1902/1903 TABLE 2: SILICON ISSUE SUMMARY Module Feature Item Number Issue Summary Affected Revisions(1) A2 A4 High-Frequency Internal Oscillator (HFINTOSC) HFINTOSC Operation 1.1 HFINTOSC Max. VDD at -40°C X Oscillator HFINTOSC Ready/Stable bit 2.1 Bits remained set to ‘1’ after initial trigger X Oscillator Clock Switching 2.2 Clock switching fails X X Sleep Module Sleep 3.1 Wake from Sleep X X Note 1: A5 X Only those issues indicated in the last column apply to the current silicon revision. DS80000523E-page 2 2011-2013 Microchip Technology Inc. PIC16LF1902/1903 Silicon Errata Issues Note: This document summarizes all silicon errata issues from all revisions of silicon, previous as well as current. Only the issues indicated by the shaded column in the following tables apply to the current silicon revision (A5). 1. Module: High-Frequency Internal Oscillator (HFINTOSC) 1.1 HFINTOSC Max. VDD at -40°C The High-Frequency Internal Oscillator may stop working at -40°C when VDD is 3.6V. Work around 1. 2. Use the Internal Oscillator (INTOSC) with VDD = 3.5V or less. Operate the device with VDD = 3.0V then, after the High-Frequency Oscillator (HFINTOSC) is operating at speed, increase VDD to 3.6V. Affected Silicon Revisions A2 A4 2.2 Clock Switching When switching clock sources between an INTOSC clock source and an external clock source operating at a different power mode, one corrupted instruction may be executed after the switch occurs. Work around When clock switching from an external oscillator clock source, first switch to 16 MHz HFINTOSC. Once running at 16 MHz HFINTOSC, configure IRCF to run at desired frequency. When clock switching from an INTOSC to an external oscillator clock source, first switch from desired INTOSC frequency to HFINTOSC High-Power mode (8 MHz or 16 MHz). Once running from HFINTOSC, switch to the external oscillator clock source. Affected Silicon Revisions A2 A4 X X A5 A5 X 2. Module: Oscillator 2.1 OSCSTAT bits: HFIOFR and HFIOFS When HFINTOSC is selected, HFIOFR and HFIOFS bits will become set when the oscillator becomes ready and stable. Once these bits are set they become “stuck”, indicating that HFINTOSC is always ready and stable. If HFINTOSC is disabled, the bits fail to be cleared. Work around None. Affected Silicon Revisions A2 A4 X X A5 2011-2013 Microchip Technology Inc. DS80000523E-page 3 PIC16LF1902/1903 3. Module: Sleep Module 3.1 Sleep Under certain conditions, when the LCD is clocked by LFINTOSC during Sleep mode, the device may not wake-up from Sleep mode. Work around Instead of using Sleep mode, switch the oscillator to LFINTOSC (OSCCON = 0x00) and use a delay loop. Affected Silicon Revisions A2 A4 A5 X X X DS80000523E-page 4 2011-2013 Microchip Technology Inc. PIC16LF1902/1903 Data Sheet Clarifications The following typographic corrections and clarifications are to be noted for the latest version of the device data sheet (DS41455B): Note: Corrections are shown in bold. Where possible, the original bold text formatting has been removed for clarity. 1. Module: Device ID and Revision ID Device ID correction for PIC16LF1902 and PIC16LF1903 on page 41 of data sheet DS41455B. In Register 4-3, DEV<8:0> bits should read: Device DEVICEID<13:0> Values DEV<8:0> REV<4:0> PIC16LF1902 01 1100 001 x xxxx PIC16LF1903 01 1100 000 x xxxx 2011-2013 Microchip Technology Inc. DS80000523E-page 5 PIC16LF1902/1903 APPENDIX A: DOCUMENT REVISION HISTORY Rev A Document (05/2011) Initial release of this document. Rev B Document (11/2011) Added Silicon Revision A4. Rev C Document (01/2012) Added Modules 2.1, 2.2 and 2.3. Rev D Document (01/2013) Added MPLAB X IDE; Added Module 3. Rev E Document (10/2013) Added Silicon Revision A5; Other minor corrections. DS80000523E-page 6 2011-2013 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, FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash 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, MTP, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. Analog-for-the-Digital Age, Application Maestro, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O, Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA and Z-Scale 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. GestIC and ULPP are registered trademarks of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. © 2011-2013, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. ISBN: 9781620776698 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 == 2011-2013 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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