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70P254-Block Diagram

70P254

8K x16 Low Power Dual-Port RAM

The IDT70P254 is a very low power 8K x 16 Dual-Port Static RAM. The IDT70P254 is designed to be used as a stand-alone 128K-bit Dual-Port SRAM. This device provides two independent ports with separate control, address, and I/O pins that permit independent, asynchronous access for reads or writes to any location in memory. An automatic power down feature controlled by CS permits the on-chip circuitry of each port to enter a very low standby power mode.  Fabricated using IDT's CMOS high-performance technology, these devices typically operate on only 27mW of power.

Features

  • True Dual-Ported memory cells which allow simultaneous reads of the same memory location
  • High-speed access (40/55ns max.)
  • Low-power operation: Active: 27mW (typ.), Standby: 3.6?W (typ.)
  • On-chip port interrupt logic which supports level shift output
  • Fully asynchronous operation from either port
  • Power supply isolation functionality to aid system power management
  • Separate upper-byte and lower-byte control for multiplexed bus compatibility
  • Left port is selectable 3.0V, 2.5V or 1.8V
  • Right port is 1.8V I/O
  • LVTTL-compatible, single 1.8V (±100mV) power supply
  • Available in 81 Ball 0.5mm-pitch BGA
  • Industrial temperature range (-40°C to +85°C)
  • Green parts available

Product Specification

Core Voltage (V)Bus Width (bits)Density (Kb)Pkg. CodeInterfaceI/O TypeAccess Time (ns)I/O Frequency (MHz)Temp. GradeArchitectureOrganizationFunctionOutput Type
1.816128BYG81Async1.8V LVCMOS, 2.5V LVCMOS, 3.0V LVTTL40, 55IDual-Port8K x 16Std. SRAM Interface, Interrupt

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
70P254L40BYGIObsoleteBYG81CABGA81IYesTrayCheck Availability
70P254L55BYGIActiveBYG81CABGA81IYesTrayCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
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70P264/254/244 Datasheet Datasheet PDF 111 KB Feb 20, 2009
PCNs & PDNs
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PDN# : CQ-14-07 Quarter PDN for Market Declined Product Discontinuation Notice PDF 541 KB Nov 12, 2014