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70V261 - Block Diagram

70V261

16K x 16 3.3V Dual-Port RAM w/Int

The 70V261 is a high-speed 16K x 16 Dual-Port Static RAM designed to be used as a stand-alone Dual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM for 32-bit or wider memory system applications resulting in full speed, error-free operation without the need for additional discrete logic. An automatic power down feature controlled by CE permits the on-chip circuitry of each port to enter a very low standby power mode.

Features

  • True Dual-Ported memory cells which allow simultaneous reads of the same memory location
  • Separate upper-byte and lower-byte control
  • 70V261 easily expands data bus width to 32 bits or more
  • On-chip port arbitration logic
  • Full on-chip hardware support of semaphore signaling between ports
  • Fully asynchronous operation from either port
  • TTL-compatible, single 3.3V (±0.3V) power supply
  • Available in 100-pin TQFP package
  • Industrial temperature range (-40C to +85C) is available

Product Specification

Core Voltage (V)Bus Width (bits)Density (Kb)Pkg. CodeInterfaceI/O TypeAccess Time (ns)I/O Frequency (MHz)Temp. RangeArchitectureOrganizationFunctionOutput Type
3.316256PN100, PNG100Async3.3 V LVTTL25, 35, 55-40 to 85°C, 0 to 70°CDual-Port16K x 16Master, Semaphore, Interrupt, Busy, Slave

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
70V261L25PFActivePN100TQFP100CNoTrayCheck Availability
70V261L25PF8ActivePN100TQFP100CNoReelCheck Availability
70V261L25PFGActivePNG100TQFP100CYesTrayCheck Availability
70V261L25PFG8ActivePNG100TQFP100CYesReelCheck Availability
70V261L25PFGIActivePNG100TQFP100IYesTrayCheck Availability
70V261L25PFGI8ActivePNG100TQFP100IYesReelCheck Availability
70V261L25PFIActivePN100TQFP100INoTrayCheck Availability
70V261L25PFI8ActivePN100TQFP100INoReelCheck Availability
70V261L35PFActivePN100TQFP100CNoTrayCheck Availability
70V261L35PF8ActivePN100TQFP100CNoReelCheck Availability
70V261L55PFActivePN100TQFP100CNoTrayCheck Availability
70V261L55PF8ActivePN100TQFP100CNoReelCheck Availability
70V261S25PFActivePN100TQFP100CNoTrayCheck Availability
70V261S25PF8ActivePN100TQFP100CNoReelCheck Availability
70V261S35PFActivePN100TQFP100CNoTrayCheck Availability
70V261S35PF8ActivePN100TQFP100CNoReelCheck Availability
70V261S35PFGActivePNG100TQFP100CYesTrayCheck Availability
70V261S35PFG8ActivePNG100TQFP100CYesReelCheck Availability
70V261S55PFActivePN100TQFP100CNoTrayCheck Availability
70V261S55PF8ActivePN100TQFP100CNoReelCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
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70V261 Data Sheet Datasheet PDF 338 KB Dec 19, 2012
Apps Notes & White Papers
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AN-91, The Most Commonly Asked Questions About Async Dual-Ports Application Note PDF 87 KB May 31, 2006
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AN-70, Dual-Port Interrupt Expansion Application Note PDF 56 KB May 31, 2006
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AN-68, Dual-Port SRAM Simplifies PC-to-TMS320 Interface Application Note PDF 92 KB May 31, 2006
show all (7)
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AN-59, Using 7024/7025 DP SRAMs to Match System Bus Widths Application Note PDF 89 KB May 31, 2006
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AN-14, Dual-Port w/ Semaphore Arbitration Application Note PDF 71 KB May 30, 2006
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AN-253, Introduction to Multi-Port Memories Application Note PDF 36 KB May 30, 2006
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AN-09, Dual-Port SRAMs Yield Bit-Slice Designs Application Note PDF 69 KB May 30, 2006
PCNs & PDNs
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PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB Aug 26, 2016
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PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
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PCN# : W0804-01 Upgrade of Process Technology Product Change Notice PDF 103 KB Apr 22, 2008
show all (17)
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PCN# : A-0610-02 ASAT China as Alternate Facility for CABGA/CVBGA/FPBGA/TQFP/PQFP Product Change Notice PDF 252 KB Oct 19, 2006
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A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB May 10, 2006
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PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB Jul 19, 2005
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PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 14, 2004
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PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 10, 2003
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PCN#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB Mar 20, 2003
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PCN#G-0302-05, New mold compound EME-G700 series Product Change Notice PDF 65 KB Mar 20, 2003
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PCN#:G-0303-01, new m/c G700 & 3230 d/a material Product Change Notice PDF 138 KB Mar 11, 2003
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PCN# G-0206-08, Orientation of square PQFP & TQFP Product Change Notice PDF 150 KB Jun 17, 2002
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PCN# G-0110-06 REV.1 Mold Compound Product Change Notice PDF 48 KB Apr 26, 2002
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PCN# G-0110-06 Mold Compound Product Change Notice PDF 47 KB Dec 14, 2001
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PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 11, 2001
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PCN SM 0008-04 - Die Revision Product Change Notice PDF 19 KB Aug 21, 2000
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PCN# G9911-05, To qualify low alpha mold compound. Product Change Notice PDF 44 KB Nov 18, 1999

Software & Tools

Title Type Format File Size Datesort icon
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70V261PF TQFP HSpice Model Model - HSPICE application/x-compress 24 KB Oct 12, 1998
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70V261PF TQFP IBIS Model Model - IBIS ZIP 13 KB Jul 8, 1997