February 23, 2011 PCN Number: 1019 Addendum PCN Change Level: Minor Subject: Addendum to Product Change Notice 1019, Programming Software Enhancement for RTAX-S/SL/DSP Product Families Dear Customer, In Silicon Sculptor programming software version 5.8.0 and later, Microsemi has implemented an enhancement to the End of Programming (EOP) test for all the products in the RTAX™-S/SL/DSP family. The new EOP test modifies the existing test program to more effectively detect unintentionally programmed antifuses. Background The purpose of the EOP test suite is to detect the presence of unintentionally programmed antifuses. In all Microsemi / Actel antifuse FPGA architectures, unused routing tracks are connected to either Ground or VCCA. If an antifuse on a signal track has become unintentionally programmed, that antifuse will connect a legitimate signal track to an unused track which is tied to either Ground or VCCA. By applying a test voltage to each legitimately programmed signal track, the EOP test senses leakage current to detect the presence of any unintentionally programmed antifuses. When an unintentionally programmed antifuse is detected, the Silicon Sculptor programmer will exit the programming process, notifying the user that the part has failed to program. Such programming yield loss is considered entirely normal and has been seen in all antifuse families over the 20 year legacy of this high reliability technology. Further, operation of an FPGA in which an antifuse has been unintentionally programmed will reveal the presence of the unintentionally programmed antifuse because the signal track on which the unintentionally programmed antifuse is located will be pulled to a logic high or logic low value by the unintentionally programmed antifuse, resulting in a time zero “stuck at 0” or “stuck at 1” fault. Microsemi recently became aware of the presence of a single unintentionally programmed antifuse in an RTAX2000S device from wafer lot D2T2A1 which resulted in the loss of functionality at time zero testing. The additional antifuse was not detected by the EOP test in Silicon Sculptor software version 5.6.0 because the leakage current during EOP test was insufficient to be detected by the Silicon Sculptor programmer. In subsequent versions of Silicon Sculptor software (version 5.8.0 and later), the resolution of the EOP test has been improved by increasing the test voltage. The unintentionally programmed antifuse which escaped the EOP test in Silicon Sculptor software version 5.6.0 is detected and rejected by the enhanced EOP test in Silicon Sculptor software version 5.8.0 and later. The test escape rate for RTAX2000S parts has been calculated to Microsemi Corporation 2381 Morse Avenue, Irvine, CA 92614-6233 Phone: 949-221-7100 * Fax: 949-756-0308 Part No. 54400103-0 be approximately 200–350 PPM with Silicon Sculptor software version 5.6.0 and earlier. Customers should note that an EOP test escape of an unintentionally programmed antifuse will always appear as a stuck net at time zero when 1.5 V VCCA is applied in normal operation. Data accumulated over many millions of antifuses by Microsemi demonstrates that unintentionally programmed antifuses do not represent a long-term reliability concern. Functional testing using a net toggle (not logic state) coverage of 95% reduces the failure rate to approximately 17 PPM or lower with Silicon Sculptor software versions 5.6.0 and earlier . The enhanced test perceptivity implemented in Silicon Sculptor software version 5.8.0 has been shown to be effective on a factory-generated test-set of approximately 29,000 unintentionally programmed antifuses (equivalent to approximately 1.5 million RTAX2000S FPGAs). In 100% of these factory-generated test cases, the use of Silicon Sculptor programming software version 5.8.0 or later was shown to be 100% effective in detecting an unintentionally programmed antifuse. Further, normal operation of the device at nominal VCCA of 1.5 V was also demonstrated to be 100% effective in detecting an unintentionally programmed antifuse. This data and analysis were presented to the customer involved and The Aerospace Corporation, and the case was closed. Microsemi recommends the following course of action: (a) Unprogrammed parts: Program with Silicon Sculptor software version 5.8.0 or later. (b) Programmed parts which have NOT been integrated onto flight boards: Run ACT_VERIFY in Silicon Sculptor software version 5.8.0 and later to rescreen the parts. More information about ACT_VERIFY can be found in the Silicon Sculptor II/3 User Guide: http://www.actel.com/documents/silisculptII_sculpt3_ug.pdf. (c) Programmed parts which have been integrated: No action is needed if no time zero functional failure has been observed. Microsemi Corporation 2381 Morse Avenue, Irvine, CA 92614-6233 Phone: 949-221-7100 * Fax: 949-756-0308 2 Table 1 lists the affected part numbers. Table 1: Affected Part Numbers RTAXS250S/SL RTAX250S-CG624B RTAX250S-CQ208EV 5962-0421907QXC 5962-0421901QUA RTAX250S-1CQ208EV RTAX250SL-1CQ352E RTAX250S-1CG624B RTAX250SL-CQ208B 5962-0421908QXC 5962-0421902QUA 5962-0421905QYC RTAX250SL-CQ352EV RTAX250S-CG624E RTAX250SL-1CQ208B RTAX250SL-1CQ352EV 5962-0421903QUA 5962-0421906QYC RTAX250S-CQ352PROTO RTAX250S-1CG624E RTAX250SL-CQ208E RTAX250S-1CQ352PROTO 5962-0421904QUA 5962-0421907QYC RTAX250S-LG624B RTAX250S-CG624EV RTAX250SL-1CQ208E 5962-0421901QZC RTAX250S-1CG624EV 5962-0421908QYC RTAX250S-1LG624B RTAX250SL-CG624B RTAX250SL-CQ208EV 5962-0421902QZC 5962-0421905QUA RTAX250SL-1CQ208EV RTAX250S-LG624E RTAX250SL-1CG624B RTAX250S-CQ208PROTO 5962-0421903QZC 5962-0421906QUA RTAX250S-1CQ208PROTO RTAX250S-1LG624E RTAX250SL-CG624E RTAX250S-CQ352B 5962-0421904QZC 5962-0421907QUA 5962-0421901QXC RTAX250S-LG624EV RTAX250SL-1CG624E RTAX250S-1CQ352B RTAX250S-1LG624EV 5962-0421908QUA 5962-0421902QXC RTAX250SL-LG624B RTAX250SL-CG624EV RTAX250S-CQ352E 5962-0421905QZC RTAX250SL-1CG624EV 5962-0421903QXC RTAX250SL-1LG624B RTAX250S-CG624PROTO RTAX250S-1CQ352E 5962-0421906QZC RTAX250S-1CG624PROTO 5962-0421904QXC RTAX250SL-LG624E RTAX250S-CQ208B RTAX250S-CQ352EV 5962-0421907QZC 5962-0421901QYC RTAX250S-1CQ352EV RTAX250SL-1LG624E RTAX250S-1CQ208B RTAX250SL-CQ352B 5962-0421908QZC 5962-0421902QYC 5962-0421905QXC RTAX250SL-LG624EV RTAX250S-CQ208E RTAX250SL-1CQ352B RTAX250SL-1LG624EV Microsemi Corporation 2381 Morse Avenue, Irvine, CA 92614-6233 Phone: 949-221-7100 * Fax: 949-756-0308 3 5962-0421903QYC Table 1: Affected Part Numbers 5962-0421906QXC RTAX250S-LG624PROTO RTAX250S-1CQ208E RTAX250SL-CQ352E RTAX250S-1LG624PROTO 5962-0421904QYC RTAX1000S/SL RTAX1000S-CGS624B RTAX1000S-CQ352B RTAX1000S-LG624B 5962-0422001QUA 5962-0422001QXC 5962-0422001QYC RTAX1000S-1CGS624B RTAX1000S-1CQ352B RTAX1000S-1LG624B 5962-0422002QUA 5962-0422002QXC 5962-0422002QYC RTAX1000S-CGS624E RTAX1000S-CQ352E RTAX1000S-LG624E 5962-0422003QUA 5962-0422003QXC 5962-0422003QYC RTAX1000S-1CGS624E RTAX1000S-1CQ352E RTAX1000S-1LG624E 5962-0422004QUA 5962-0422004QXC 5962-0422004QYC RTAX1000S-CGS624EV RTAX1000S-CQ352EV RTAX1000S-LG624EV RTAX1000S-1CGS624EV RTAX1000S-1CQ352EV RTAX1000S-1LG624EV RTAX1000SL-CGS624B RTAX1000SL-CQ352B RTAX1000SL-LG624B 5962-0422005QUA 5962-0422005QXC 5962-0422005QYC RTAX1000SL-1CGS624B RTAX1000SL-1CQ352B RTAX1000SL-1LG624B 5962-0422006QUA 5962-0422006QXC 5962-0422006QYC RTAX1000SL-CGS624E RTAX1000SL-CQ352E RTAX1000SL-LG624E 5962-0422007QUA 5962-0422007QXC 5962-0422007QYC RTAX1000SL-1CGS624E RTAX1000SL-1CQ352E RTAX1000SL-1LG624E 5962-0422008QUA 5962-0422008QXC 5962-0422008QYC RTAX1000SL-CGS624EV RTAX1000SL-CQ352EV RTAX1000SL-LG624EV RTAX1000SL-1CGS624EV RTAX1000SL-1CQ352EV RTAX1000SL-1LG624EV RTAX1000S-CG624PROTO RTAX1000S-CQ352PROTO RTAX1000S-LG624PROTO RTAX1000S-1CG624PROTO RTAX1000S-1CQ352PROTO RTAX1000S-1LG624PROTO RTAX2000S/SL RTAX2000S-CG1152B RTAX2000S-CQ256B RTAX2000S-LG1152B 5962-0422101QTA 5962-0422101QUC 5962-0422101QMC Microsemi Corporation 2381 Morse Avenue, Irvine, CA 92614-6233 Phone: 949-221-7100 * Fax: 949-756-0308 4 RTAX2000S-1CG1152B Table 1: Affected Part Numbers RTAX2000S-1CQ256B RTAX2000S-1LG1152B 5962-0422102QTA 5962-0422102QUC 5962-0422102QMC RTAX2000S-CG1152E RTAX2000S-CQ256E RTAX2000S-LG1152E 5962-0422103QTA 5962-0422103QUC 5962-0422103QMC RTAX2000S-1CG1152E RTAX2000S-1CQ256E RTAX2000S-1LG1152E 5962-0422104QTA 5962-0422104QUC 5962-0422104QMC RTAX2000S-CG1152EV RTAX2000S-CQ256EV RTAX2000S-LG1152EV RTAX2000S-1CG1152EV RTAX2000S-1CQ256EV RTAX2000S-1LG1152EV RTAX2000SL-CG1152B RTAX2000SL-CQ256B RTAX2000SL-LG1152B 5962-0422105QTA 5962-0422105QUC 5962-0422105QMC RTAX2000SL-1CG1152B RTAX2000SL-1CQ256B RTAX2000SL-1LG1152B 5962-0422106QTA 5962-0422106QUC 5962-0422106QMC RTAX2000SL-CG1152E RTAX2000SL-CQ256E RTAX2000SL-LG1152E 5962-0422107QTA 5962-0422107QUC 5962-0422107QMC RTAX2000SL-1CG1152E RTAX2000SL-1CQ256E RTAX2000SL-1LG1152E 5962-0422108QTA 5962-0422108QUC 5962-0422108QMC RTAX2000SL-CG1152EV RTAX2000SL-CQ256EV RTAX2000SL-LG1152EV RTAX2000SL-1CG1152EV RTAX2000SL-1CQ256EV RTAX2000SL-1LG1152EV RTAX2000S-CG1152PROTO RTAX2000S-CQ256PROTO RTAX2000S-LG1152PROTO RTAX2000S-1CG1152PROTO RTAX2000S-1CQ256PROTO RTAX2000S-1LG1152PROTO RTAX2000S-CGS624B RTAX2000S-CQ352B RTAX2000S-LG624B 5962-0422101QNA 5962-0422101QXC 5962-0422101QYC RTAX2000S-1CGS624B RTAX2000S-1CQ352B RTAX2000S-1LG624B 5962-0422102QNA 5962-0422102QXC 5962-0422102QYC RTAX2000S-CGS624E RTAX2000S-CQ352E RTAX2000S-LG624E 5962-0422103QNA 5962-0422103QXC 5962-0422103QYC RTAX2000S-1CGS624E RTAX2000S-1CQ352E RTAX2000S-1LG624E 5962-0422104QNA 5962-0422104QXC 5962-0422104QYC RTAX2000S-CGS624EV RTAX2000S-CQ352EV RTAX2000S-LG624EV Microsemi Corporation 2381 Morse Avenue, Irvine, CA 92614-6233 Phone: 949-221-7100 * Fax: 949-756-0308 5 RTAX2000S-1CGS624EV Table 1: Affected Part Numbers RTAX2000S-1CQ352EV RTAX2000S-1LG624EV RTAX2000SL-CGS624B RTAX2000SL-CQ352B RTAX2000SL-LG624B 5962-0422105QNA 5962-0422105QXC 5962-0422105QYC RTAX2000SL-1CGS624B RTAX2000SL-1CQ352B RTAX2000SL-1LG624B 5962-0422106QNA 5962-0422106QXC 5962-0422106QYC RTAX2000SL-CGS624E RTAX2000SL-CQ352E RTAX2000SL-LG624E 5962-0422107QNA 5962-0422107QXC 5962-0422107QYC RTAX2000SL-1CGS624E RTAX2000SL-1CQ352E RTAX2000SL-1LG624E 5962-0422108QNA 5962-0422108QXC 5962-0422108QYC RTAX2000SL-CGS624EV RTAX2000SL-CQ352EV RTAX2000SL-LG624EV RTAX2000SL-1CGS624EV RTAX2000SL-1CQ352EV RTAX2000SL-1LG624EV RTAX2000S-CG624PROTO RTAX2000S-CQ352PROTO RTAX2000S-LG624PROTO RTAX2000S-1CG624PROTO RTAX2000S-1CQ352PROTO RTAX2000S-1LG624PROTO RTAX4000S/SL RTAX4000S-CG1272B RTAX4000S-CQ352B RTAX4000S-LG1272B 5962-0822401QZA 5962-0822401QXC 5962-0822401QYC RTAX4000S-1CG1272B RTAX4000S-1CQ352B RTAX4000S-1LG1272B 5962-0822402QZA 5962-0822402QXC 5962-0822402QYC RTAX4000S-CG1272E RTAX4000S-CQ352E RTAX4000S-LG1272E 5962-0822403QZA 5962-0822403QXC 5962-0822403QYC RTAX4000S-1CG1272E RTAX4000S-1CQ352E RTAX4000S-1LG1272E 5962-0822404QZA 5962-0822404QXC 5962-0822404QYC RTAX4000S-CG1272EV RTAX4000S-CQ352EV RTAX4000S-LG1272EV RTAX4000S-1CG1272EV RTAX4000S-1CQ352EV RTAX4000S-1LG1272EV RTAX4000SL-CG1272B RTAX4000SL-CQ352B RTAX4000SL-LG1272B 5962-0822405QZA 5962-0822405QXC 5962-0822405QYC RTAX4000SL-1CG1272B RTAX4000SL-1CQ352B RTAX4000SL-1LG1272B 5962-0822406QZA 5962-0822406QXC 5962-0822406QYC RTAX4000SL-CG1272E RTAX4000SL-CQ352E RTAX4000SL-LG1272E Microsemi Corporation 2381 Morse Avenue, Irvine, CA 92614-6233 Phone: 949-221-7100 * Fax: 949-756-0308 6 5962-0822407QZA Table 1: Affected Part Numbers 5962-0822407QXC 5962-0822407QYC RTAX4000SL-1CG1272E RTAX4000SL-1CQ352E RTAX4000SL-1LG1272E 5962-0822408QZA 5962-0822408QXC 5962-0822408QYC RTAX4000SL-CG1272EV RTAX4000SL-CQ352EV RTAX4000SL-LG1272EV RTAX4000SL-1CG1272EV RTAX4000SL-1CQ352EV RTAX4000SL-1LG1272EV RTAX4000S-CG1272PROTO RTAX4000S-CQ352PROTO RTAX4000S-LG1272PROTO RTAX4000S-1CG1272PROTO RTAX4000S-1CQ352PROTO RTAX4000S-1LG1272PROTO RTAX2000D RTAX2000D-CGD1272B RTAX2000D-LGD1272B RTAX2000D-CQ352B RTAX2000D-CGD1272E RTAX2000D-LGD1272E RTAX2000D-CQ352E RTAX2000D-CGD1272EV RTAX2000D-LGD1272EV RTAX2000D-CQ352EV RTAX2000D-CGD1272PROTO RTAX2000D-LGD1272PROTO RTAX2000D-CQ352PROTO RTAX4000D RTAX4000D-CGD1272B RTAX4000D-LGD1272B RTAX4000D-CQ352B RTAX4000D-CGD1272E RTAX4000D-LGD1272E RTAX4000D-CQ352E RTAX4000D-CGD1272EV RTAX4000D-LGD1272EV RTAX4000D-CQ352EV RTAX4000D-CGD1272PROTO RTAX4000D-LGD1272PROTO RTAX4000D-CQ352PROTO If you have any questions related to this topic, please contact Microsemi's ITAR Application Technical Support at [email protected]. Regards, Microsemi Corporation Microsemi Corporation 2381 Morse Avenue, Irvine, CA 92614-6233 Phone: 949-221-7100 * Fax: 949-756-0308 7