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71V65603 - Block Diagram


3.3V 256K X 36 ZBT Synchronous 3.3V I/O PipeLined SRAM

The 71V65603 3.3V CMOS SRAM is organized as 256K X 36. It is designed to eliminate dead bus cycles when turning the bus around between reads and writes, or writes and reads. Thus, it has been given the name ZBTTM, or Zero Bus Turnaround. The 71V65603 contain data I/O, address and control signal registers. In the burst mode, it can provide four cycles of data for a single address presented to the SRAM.


  • High performance system speed - 150MHz
  • (3.8ns Clock-to-Data Access)
  • ZBTTM Feature - No dead cycles between write and read cycles
  • Internally synchronized output buffer enable eliminates the need to control OE
  • Single R/W (READ/WRITE) control pin
  • Positive clock-edge triggered address, data, and control signal registers for fully pipelined applications
  • 4-word burst capability (interleaved or linear)
  • Individual byte write (BW1 - BW4) control (May tie active)
  • Three chip enables for simple depth expansion
  • 3.3V power supply (±5%)
  • 3.3V I/O Supply (VDDQ)
  • Power down controlled by ZZ input
  • Available in 100-pin TQFP, 119-pin BGA and 165 fpBGA packages

Product Specification

Density (Kb)Bus Width (bits)Core Voltage (V)Pkg. CodeOrganizationI/O Voltage (V)Cycle Time (ns)I/O Frequency (MHz)Temp. RangeArchitectureOutput Type
256363.3BG119, BGG119, PKG100, BQG165, BQ165256K x 362.50, 3.30100.00, 133.00, 150.00-40 to 85°C, 0 to 70°CZBTPipelined

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
71V65603S100BGActiveBG119PBGA119CNoTrayCheck Availability
71V65603S100BG8ActiveBG119PBGA119CNoReelCheck Availability
71V65603S100BGIActiveBG119PBGA119INoTrayCheck Availability
71V65603S100BGI8ActiveBG119PBGA119INoReelCheck Availability
71V65603S100BQActiveBQ165CABGA165CNoTrayCheck Availability
71V65603S100BQGActiveBQG165CABGA165CYesTrayCheck Availability
71V65603S100BQG8ActiveBQG165CABGA165CYesReelCheck Availability
71V65603S100BQGIActiveBQG165CABGA165IYesTrayCheck Availability
71V65603S100BQGI8ActiveBQG165CABGA165IYesReelCheck Availability
71V65603S100BQIActiveBQ165CABGA165INoTrayCheck Availability
71V65603S100PFGActivePKG100TQFP100CYesTrayCheck Availability
71V65603S100PFG8ActivePKG100TQFP100CYesReelCheck Availability
71V65603S100PFGIActivePKG100TQFP100IYesTrayCheck Availability
71V65603S100PFGI8ActivePKG100TQFP100IYesReelCheck Availability
71V65603S133BGActiveBG119PBGA119CNoTrayCheck Availability
71V65603S133BG8ActiveBG119PBGA119CNoReelCheck Availability
71V65603S133BGGActiveBGG119PBGA119CYesTrayCheck Availability
71V65603S133BGG8ActiveBGG119PBGA119CYesReelCheck Availability
71V65603S133BGGIActiveBGG119PBGA119IYesTrayCheck Availability
71V65603S133BGGI8ActiveBGG119PBGA119IYesReelCheck Availability
71V65603S133BGIActiveBG119PBGA119INoTrayCheck Availability
71V65603S133BGI8ActiveBG119PBGA119INoReelCheck Availability
71V65603S133BQActiveBQ165CABGA165CNoTrayCheck Availability
71V65603S133BQGActiveBQG165CABGA165CYesTrayCheck Availability
71V65603S133BQG8ActiveBQG165CABGA165CYesReelCheck Availability
71V65603S133BQGIActiveBQG165CABGA165IYesTrayCheck Availability
71V65603S133BQGI8ActiveBQG165CABGA165IYesReelCheck Availability
71V65603S133BQIActiveBQ165CABGA165INoTrayCheck Availability
71V65603S133PFGActivePKG100TQFP100CYesTrayCheck Availability
71V65603S133PFG8ActivePKG100TQFP100CYesReelCheck Availability
71V65603S133PFGIActivePKG100TQFP100IYesTrayCheck Availability
71V65603S133PFGI8ActivePKG100TQFP100IYesReelCheck Availability
71V65603S150BGActiveBG119PBGA119CNoTrayCheck Availability
71V65603S150BG8ActiveBG119PBGA119CNoReelCheck Availability
71V65603S150BGGActiveBGG119PBGA119CYesTrayCheck Availability
71V65603S150BGG8ActiveBGG119PBGA119CYesReelCheck Availability
71V65603S150BGGIActiveBGG119PBGA119IYesTrayCheck Availability
71V65603S150BGGI8ActiveBGG119PBGA119IYesReelCheck Availability
71V65603S150BQActiveBQ165CABGA165CNoTrayCheck Availability
71V65603S150BQ8ActiveBQ165CABGA165CNoReelCheck Availability
71V65603S150BQGActiveBQG165CABGA165CYesTrayCheck Availability
71V65603S150BQG8ActiveBQG165CABGA165CYesReelCheck Availability
71V65603S150BQGIActiveBQG165CABGA165IYesTrayCheck Availability
71V65603S150BQGI8ActiveBQG165CABGA165IYesReelCheck Availability
71V65603S150BQIActiveBQ165CABGA165INoTrayCheck Availability
71V65603S150BQI8ActiveBQ165CABGA165INoReelCheck Availability
71V65603S150PFGActivePKG100TQFP100CYesTrayCheck Availability
71V65603S150PFG8ActivePKG100TQFP100CYesReelCheck Availability
71V65603S150PFGIActivePKG100TQFP100IYesTrayCheck Availability
71V65603S150PFGI8ActivePKG100TQFP100IYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
71V65603/803Datasheet Datasheet PDF 362 KB Oct 16, 2008
IDT71V656xx and IDT71V658xx Device Errata Errata PDF 16 KB Jul 28, 2000
Apps Notes & White Papers
App Note: System Design/Bus Timing Issues Application Note PDF 82 KB Jun 19, 2001
PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB Aug 26, 2016
PCN#: A1309-03 Additional Assembly Sources Product Change Notice PDF 398 KB Oct 21, 2013
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
show all (24)
PCN# : A0705-02 New Mold Compound for CABGA-256, FPBGA-48, FPBGA-165 Product Change Notice PDF 138 KB Jul 25, 2007
PCN#: A-0611-02 Transfer of Assembly Build for PBGA 119 (Green & Standard) from ATK, Korea to ATP, Philippines Product Change Notice PDF 120 KB Dec 17, 2006
PCN# A-0607-05 Green Mold Compound KMC3580 for BGA Product Change Notice PDF 194 KB Aug 30, 2006
A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB May 10, 2006
PCN#: TB-0512-01 Reel Color Changed from Blue to Black Product Change Notice PDF 729 KB Dec 16, 2005
PCN # SR-0505-02 FPBGA BQ165 Solder Pad Opening/Ball Diameter Product Change Notice PDF 163 KB Aug 3, 2005
PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB Jul 19, 2005
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 14, 2004
PCN#: A-0403-03, BGA package family Product Change Notice PDF 38 KB Dec 9, 2004
PCN#: A-0309-05, new m/c-G770 & d/a-2300 material Product Change Notice PDF 211 KB Oct 16, 2003
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 10, 2003
PCN#:A-0305-02, new m/c G770 & 2300 d/a material Product Change Notice PDF 197 KB Jun 4, 2003
PCN#G-0302-05, New mold compound EME-G700 series Product Change Notice PDF 65 KB Mar 20, 2003
PCN#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB Mar 20, 2003
PCN#:G-0303-01, new m/c G700 & 3230 d/a material Product Change Notice PDF 138 KB Mar 11, 2003
PCN# G-0206-08, Orientation of square PQFP & TQFP Product Change Notice PDF 150 KB Jun 17, 2002
PCN# G-0110-06 REV.1 Mold Compound Product Change Notice PDF 48 KB Apr 26, 2002
PCN# G-0110-06 Mold Compound Product Change Notice PDF 47 KB Dec 14, 2001
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 11, 2001
PCN SR0102-04 : ZBT LOGO Product Change Notice PDF 53 KB Mar 12, 2001
PCN# G9911-05, To qualify low alpha mold compound. Product Change Notice PDF 44 KB Nov 18, 1999
IDT71V656xx and IDT71V658xx Device Errata Device Errata PDF 15 KB Jul 28, 2000

Software & Tools

Title Type Format File Size Datesort icon
71V65603 Verilog Model Model - Verilog application/x-tar 51 KB Aug 1, 2000
71v65603z_PF IBIS Model Model - IBIS ZIP 13 KB Aug 8, 2000