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

注文可能な製品ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type 購入/サンプル
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
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
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

Documentation & Downloads

タイトル 他の言語 タイプ 形式 サイズ 日付
データシート
70V639 Datasheet Datasheet PDF 393 KB
Errata smen-01-03 BUSY timing parameter notcorrect Errata PDF 9 KB
Errata_SMEN-01-04 Jtag timing parameter notcorrect Errata PDF 14 KB
ユーザーガイド
Cypress Discontinued Dual-port and FIFO to IDT Cross Reference Guide Guide PDF 123 KB
アプリケーションノート、ホワイトペーパー
AN-70, Dual-Port Interrupt Expansion Application Note PDF 129 KB
AN-91, The Most Commonly Asked Questions About Async Dual-Ports Application Note PDF 197 KB
AN-68, Dual-Port SRAM Simplifies PC-to-TMS320 Interface Application Note PDF 198 KB
AN-14, Dual-Port w/ Semaphore Arbitration Application Note PDF 183 KB
AN-09, Dual-Port SRAMs Yield Bit-Slice Designs Application Note PDF 156 KB
AN-253, Introduction to Multi-Port Memories Application Note PDF 97 KB
PCN / PDN
PDN# : SP-17-02 PRODUCT DISCONTINUANCE NOTICE FOR SPO DEVICES Product Discontinuation Notice PDF 645 KB
PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB
PCN# : A-0610-02 ASAT China as Alternate Facility for CABGA/CVBGA/FPBGA/TQFP/PQFP Product Change Notice PDF 252 KB
PCN# A-0607-05 Green Mold Compound KMC3580 for BGA Product Change Notice PDF 194 KB
A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB
PCN#: TB-0512-01 Reel Color Changed from Blue to Black Product Change Notice PDF 729 KB
PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB
PCN#: A-0403-03, BGA package family Product Change Notice PDF 38 KB
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB
PCN#:A-0305-02, new m/c G770 & 2300 d/a material Product Change Notice PDF 197 KB
PCN#G-0302-05, New mold compound EME-G700 series Product Change Notice PDF 65 KB
PCN#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB
PCN# G-0110-06 REV.1 Mold Compound Product Change Notice PDF 48 KB
PCN# G-0110-06 Mold Compound Product Change Notice PDF 47 KB
PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB
Downloads
IDT70V639 VHDL Model Model - VHDL ZIP 5 KB
IDT70V639 IBIS Model Model - IBIS ZIP 44 KB
IDT70V639 Verilog Model Model - Verilog ZIP 10 KB
IDT70V639 BSDL Model Model - BSDL ZIP 7 KB

Boards & Kits