128K x 18 3.3V Dual-Port RAM, Interleaved I/O's

The 70V639 is a high-speed 128K x 18 Asynchronous 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 36-bit-or-more word system. Using the IDT MASTER/SLAVE Dual-Port RAM approach in 36-bit or wider memory system applications results in full-speed, error-free operation without the need for additional discrete logic. An automatic power down feature controlled by the chip enables (either CE0 or CE1) permit the on-chip circuitry of each port to enter a very low standby power mode.

Features

  • Dual-Port allows simultaneous access of the same memory location
  • Dual chip enables allow for depth expansion without external logic
  • Easily expands data bus width to 36 bits or more using the Master/Slave select when cascading more than one device
  • Busy and Interrupt Flags
  • On-chip port arbitration logic
  • Full on-chip hardware support of semaphore signaling between ports Fully asynchronous operation from either port
  • Separate byte controls for multiplexed bus and bus matching compatibility
  • Includes JTAG functionality on BGA package versions only
  • LVTTL-compatible, single 3.3V (±150mV) power supply for core
  • LVTTL-compatible, selectable 3.3V (±150mV)/2.5V (±100mV) power supply for I/Os and control signals on each port
  • Available in a 128-pin TQFP, 208-ball fpBGA and 256-ball BGA
  • Industrial temperature range (–40C to +85C) is available

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
70V639S10BC Active BC256 CABGA 256 C No Tray Availability
70V639S10BC8 Active BC256 CABGA 256 C No Reel Availability
70V639S10BF Active BF208 CABGA 208 C No Tray Availability
70V639S10BF8 Active BF208 CABGA 208 C No Reel Availability
70V639S10PRF Active PK128 TQFP 128 C No Tray Availability
70V639S10PRF8 Active PK128 TQFP 128 C No Reel Availability
70V639S10PRFG Active PKG128 TQFP 128 C Yes Tray Availability
70V639S10PRFG8 Active PKG128 TQFP 128 C Yes Reel Availability
70V639S12BC Active BC256 CABGA 256 C No Tray Availability
70V639S12BC8 Active BC256 CABGA 256 C No Reel Availability
70V639S12BCI Active BC256 CABGA 256 I No Tray Availability
70V639S12BCI8 Active BC256 CABGA 256 I No Reel Availability
70V639S12BF Active BF208 CABGA 208 C No Tray Availability
70V639S12BF8 Active BF208 CABGA 208 C No Reel Availability
70V639S12BFGI Active BFG208 CABGA 208 I Yes Tray Availability
70V639S12BFGI8 Active BFG208 CABGA 208 I Yes Reel Availability
70V639S12BFI Active BF208 CABGA 208 I No Tray Availability
70V639S12BFI8 Active BF208 CABGA 208 I No Reel Availability
70V639S12PRF Active PK128 TQFP 128 C No Tray Availability
70V639S12PRF8 Active PK128 TQFP 128 C No Reel Availability
70V639S12PRFI Active PK128 TQFP 128 I No Tray Availability
70V639S12PRFI8 Active PK128 TQFP 128 I No Reel Availability
70V639S15BC Active BC256 CABGA 256 C No Tray Availability
70V639S15BC8 Active BC256 CABGA 256 C No Reel Availability
70V639S15BF Active BF208 CABGA 208 C No Tray Availability
70V639S15BF8 Active BF208 CABGA 208 C No Reel Availability
70V639S15PRF Active PK128 TQFP 128 C No Tray Availability
70V639S15PRF8 Active PK128 TQFP 128 C No Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
70V639 Datasheet - Datasheet PDF 705 KB Jun 17, 2015
Errata smen-01-03 BUSY timing parameter notcorrect - Errata PDF 9 KB Jul 22, 2001
Errata_SMEN-01-04 Jtag timing parameter notcorrect - Errata PDF 14 KB Jul 22, 2001
Application Notes & White Papers
AN-14, Dual-Port w/ Semaphore Arbitration - Application Note PDF 71 KB May 29, 2006
AN-70, Dual-Port Interrupt Expansion - Application Note PDF 56 KB May 30, 2006
AN-91, The Most Commonly Asked Questions About Async Dual-Ports - Application Note PDF 87 KB May 30, 2006
AN-68, Dual-Port SRAM Simplifies PC-to-TMS320 Interface - Application Note PDF 92 KB May 30, 2006
AN-09, Dual-Port SRAMs Yield Bit-Slice Designs - Application Note PDF 69 KB May 29, 2006
AN-253, Introduction to Multi-Port Memories - Application Note PDF 36 KB May 29, 2006
PCNs & PDNs
PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly - Product Change Notice PDF 567 KB Aug 25, 2016
PCN# G-0110-06 Mold Compound - Product Change Notice PDF 47 KB Dec 13, 2001
PCN# : A-0610-02 ASAT China as Alternate Facility for CABGA/CVBGA/FPBGA/TQFP/PQFP - Product Change Notice PDF 252 KB Oct 18, 2006
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products - Product Change Notice PDF 80 KB Dec 13, 2004
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w - Product Change Notice PDF 24 KB Nov 13, 2012
A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China - Product Change Notice PDF 164 KB May 9, 2006
PCN# G0106-01, Moisture Sensitive Label Change - Product Change Notice PDF 274 KB Jun 10, 2001
PCN#: A-0310-01, Green Products - Product Change Notice PDF 26 KB Oct 9, 2003
PCN#: A-0403-03, BGA package family - Product Change Notice PDF 38 KB Dec 8, 2004
PCN#: G-0302-06, New die attach 3230 from Ablestik - Product Change Notice PDF 150 KB Mar 19, 2003
PCN#G-0302-05, New mold compound EME-G700 series - Product Change Notice PDF 65 KB Mar 19, 2003
PCN# A-0607-05 Green Mold Compound KMC3580 for BGA - Product Change Notice PDF 194 KB Aug 29, 2006
PCN A-0506-03; Packing Material Change - Product Change Notice PDF 290 KB Jul 18, 2005
PCN#:A-0305-02, new m/c G770 & 2300 d/a material - Product Change Notice PDF 197 KB Jun 3, 2003
PCN#: TB-0512-01 Reel Color Changed from Blue to Black - Product Change Notice PDF 729 KB Dec 15, 2005
PCN# G-0110-06 REV.1 Mold Compound - Product Change Notice PDF 48 KB Apr 25, 2002

Software & Tools

Title Other Languages Type Format File Size Date
IDT70V639 IBIS Model - Model - IBIS ZIP 44 KB Jul 20, 2004
IDT70V639 BSDL Model - Model - BSDL ZIP 7 KB Jul 23, 2003
IDT70V639 Verilog Model - Model - Verilog ZIP 10 KB Aug 10, 2003
IDT70V639 VHDL Model - Model - VHDL ZIP 5 KB Sep 6, 2004