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70T3599 - Block Diagram


128K x 36 Sync, 3.3V/2.5V, Dual-Port RAM, Interleaved I/O's

The 70T3599 is a high-speed 128K x 36 bit synchronous Dual-Port RAM that has been optimized for applications having unidirectional or bidirectional data flow in bursts. An automatic power down feature, controlled by CE0 and CE1, permits the on-chip circuitry of each port to enter a very low standby power mode. The 70T3599 can support an operating voltage of either 3.3V or 2.5V on one or both ports, controllable by the OPT pins. The power supply for the core of the device (VDD) is at 2.5V.


  • Dual-Port allows simultaneous access of the same memory location
  • Selectable Pipelined or Flow-Through output mode
  • Counter enable and repeat features
  • Dual chip enables allow for depth expansion without additional logic
  • Full synchronous operation on both ports
  • Interrupt and Collision Detection Flags
  • Separate byte controls for multiplexed bus and bus matching compatibility
  • Dual Cycle Deselect (DCD) for Pipelined Output Mode
  • 2.5V (±100mV) power supply for core
  • LVTTL compatible, selectable 3.3V (±150mV) or 2.5V (±100mV) power supply for I/Os and control signals on each port
  • Available in a 256-pin BGA, 208-pin PQFP and 208-pin fpBGA packages
  • Includes JTAG functionality on BGA package versions only
  • Industrial temperature range (-40C to +85C) is available

Product Specification

Core Voltage (V)Bus Width (bits)Density (Kb)Pkg. CodeInterfaceI/O TypeCycle Time (ns)I/O Frequency (MHz)Temp. RangeArchitectureOrganizationFunctionOutput Type
2.5364608BF208, BC256, BFG208, BCG256, DR208Sync2.5 V LVTTL, 3.3 V LVTTL133.00, 166.00, 200.00-40 to 85°C, 0 to 70°CDual-Port128K x 36JTAG, Sleep Mode, Collision Detect, Interrupt, Dual Clocks, CountersPipelined, Flowthrough

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
70T3599S133BCActiveBC256CABGA256CNoTrayCheck Availability
70T3599S133BC8ActiveBC256CABGA256CNoReelCheck Availability
70T3599S133BCIActiveBC256CABGA256INoTrayCheck Availability
70T3599S133BCI8ActiveBC256CABGA256INoReelCheck Availability
70T3599S133BFNot Recommended
BF208CABGA208CNoTrayCheck Availability
70T3599S133BF8Not Recommended
BF208CABGA208CNoReelCheck Availability
70T3599S133BFGIActiveBFG208CABGA208IYesTrayCheck Availability
70T3599S133BFGI8ActiveBFG208CABGA208IYesReelCheck Availability
70T3599S133BFIActiveBF208CABGA208INoTrayCheck Availability
70T3599S133BFI8ActiveBF208CABGA208INoReelCheck Availability
70T3599S133DRActiveDR208PQFP208CNoTrayCheck Availability
70T3599S133DRINot Recommended
DR208PQFP208INoTrayCheck Availability
70T3599S166BCActiveBC256CABGA256CNoTrayCheck Availability
70T3599S166BC8ActiveBC256CABGA256CNoReelCheck Availability
70T3599S166BFActiveBF208CABGA208CNoTrayCheck Availability
70T3599S166BF8ActiveBF208CABGA208CNoReelCheck Availability
70T3599S166BFGNot Recommended
BFG208CABGA208CYesTrayCheck Availability
70T3599S166BFG8Not Recommended
BFG208CABGA208CYesReelCheck Availability
70T3599S166DRActiveDR208PQFP208CNoTrayCheck Availability
70T3599S200BCActiveBC256CABGA256CNoTrayCheck Availability
70T3599S200BC8ActiveBC256CABGA256CNoReelCheck Availability
70T3599S200BCGActiveBCG256CABGA256CYesTrayCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
70T3519/99/89 Datasheet Datasheet PDF 401 KB Mar 24, 2014
Apps Notes & White Papers
AN-68, Dual-Port SRAM Simplifies PC-to-TMS320 Interface Application Note PDF 92 KB May 31, 2006
AN-255 Dual-Port Power Discussion Application Note PDF 36 KB May 30, 2006
AN-254, The Most Commonly Asked Questions About Sync Dual-Ports Application Note PDF 66 KB May 30, 2006
show all (6)
AN-09, Dual-Port SRAMs Yield Bit-Slice Designs Application Note PDF 69 KB May 30, 2006
AN-253, Introduction to Multi-Port Memories Application Note PDF 36 KB May 30, 2006
AN-144, Sync Dual-Ports for DSP & Communication Applications Application Note PDF 102 KB May 30, 2006
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
PCN# A-0607-05 Green Mold Compound KMC3580 for BGA Product Change Notice PDF 194 KB Aug 30, 2006
PCN#: TB-0512-01 Reel Color Changed from Blue to Black Product Change Notice PDF 729 KB Dec 16, 2005
show all (9)
PCN# A-0506-01: New m/c G700 & d/a 8361J for PQFP Product Change Notice PDF 16 KB Aug 12, 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-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

Software & Tools

Title Type Format File Size Datesort icon
70T3599 BSDL Model Model - BSDL ZIP 6 KB Jun 24, 2004
70T3599 Verilog Model Model - Verilog ZIP 108 KB May 19, 2004
70T3599 IBIS Model Model - IBIS ZIP 36 KB May 28, 2004
70T3599 VHDL Model Model - VHDL ZIP 38 KB Dec 13, 2004