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IDT70V28L

Features: ` True Dual-Ported memory cells which allow simultaneous access of the same memory location` High-speed access Commercial: 15/20ns (max.) Industrial: 20ns (max.)` Low-power operation IDT70V28L Active: 440mW (typ.) Standby: 660W (typ.)` Dual chip enables allow for depth expansion witho...

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SeekIC No. : 004372121 Detail

IDT70V28L: Features: ` True Dual-Ported memory cells which allow simultaneous access of the same memory location` High-speed access Commercial: 15/20ns (max.) Industrial: 20ns (max.)` Low-power operation ID...

IDT70V28L Data Sheet

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Part Number:
IDT70V28L
Supply Ability:
5000

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Product Details

Description



Features:

` True Dual-Ported memory cells which allow simultaneous access of the same memory location
` High-speed access
  Commercial: 15/20ns (max.)
  Industrial: 20ns (max.)
` Low-power operation
  IDT70V28L
      Active: 440mW (typ.)
      Standby: 660W (typ.)
` Dual chip enables allow for depth expansion without external logic
` IDT70V28 easily expands data bus width to 32 bits or more using the Master/Slave select when cascading more than one device
` M/S = VIH forBUSY output flag on Master,M/S = VIL forBUSY input on Slave
` Busy and Interrupt Flags
` On-chip port arbitration logic
` Full on-chip hardware support of semaphore signaling etween ports
` Fully asynchronous operation from either port
` Separate upper-byte and lower-byte controls for multiplexed us and bus matching compatibility
` LVTTL-compatible, single 3.3V (±0.3V) power supply
` Available in a 100-pin TQFP
` Industrial temperature range (40°C to +85°C) is available or selected speeds


Pinout

Connection Diagram


Specifications

Symbol Rating

Commercial
& Industrial
Unit
VTERM(2) Terminal Voltage with Respect to GND
-0.5 to +4.6
V
TBIAS Temperature Under Bias
55 to +125
TSTG Storage Temperature
65 to +150
IOUT DC Output Current
50
mA

NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may ause permanent damage to the device. This is a stress rating only and functional peration of the device at these or any other conditions above those indicated in he operational sections of this specification is not implied. Exposure to absolute aximum rating conditions for extended periods may affect reliability.
2. VTERM must not exceed Vcc + 0.3V for more than 25% of the cycle time or 10ns aximum, and is limited to 20mA for the period of VTERM  Vcc + 0.3V.


Description

The IDT70V28L is a high-speed 64K x 16 Dual-Port Static RAM. he IDT70V28L is designed to be used as a stand-alone 1024K-bit ual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM or 32-bit-or-more word system. Using the IDT MASTER/SLAVE Dual-Port RAM approach in 32-bit or wider memory system applications esults in full-speed, error-free operation without the need for additional iscrete logic.

This IDT70V28L provides two independent ports with separate control, ddress, and I/O pins that permit independent, asynchronous access or reads or writes to any location in memory. An automatic power own feature controlled by the chip enables (either CE0 or CE1) ermit the on-chip circuitry of each port to enter a very low standby wer mode.

Fabricated using IDT's CMOS high-performance technology, hese devices typically operate on only 440mW of power.

The IDT70V28L is packaged in a 100-pin Thin Quad Flatpack TQFP).




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