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TC55B4256J

Toshiba
Part Number TC55B4256J
Manufacturer Toshiba
Description 256K x 4-Bit BiCMOS Static RAM
Published Jun 8, 2006
Detailed Description TOSHIBA TC55B4256]-12/15/20 SILICON GATE BiCMOS 262,144 WORD x 4 BIT BiCMOS STATIC RAM Description The TC55B4256J is...
Datasheet PDF File TC55B4256J PDF File

TC55B4256J
TC55B4256J

Overview
TOSHIBA TC55B4256]-12/15/20 SILICON GATE BiCMOS 262,144 WORD x 4 BIT BiCMOS STATIC RAM Description The TC55B4256J is a 1,048,576 bit high speed BiCMOS static random access memory organized as 262,144 words by 4 bits and operated from a single 5V supply.
Toshiba's BiCMOS technology and advanced circuit design enable high speed operation.
The TC55B4256J features low power dissipation when the device is deselected using chip enable (CE).
The TC55B4256J is suitable for use in applications where high speed is required such as cache memory, high speed storage, and main memory.
All inputs and outputs are TIL compatible.
The TC55B4256J is available in a 400mil width, 28-pin SOJ suitable for high density surface assembly.
Features • Fast access time - TC55B4256J-12 12ns (max.
) - TC55B4256J-15 15ns (max.
) - TC55B4256J-20 20ns (max.
) • Low power dissipation - Operation: - TC55B4256J-12 130mA (max.
) - TC55B4256J-15 130mA (max.
) - TC55B4256J-20 130mA (max.
) - Standby: 12mA (max.
) • Single 5V power supply: 5V±10% • Fully static operation • Inputs and outputs TIL compatible • Package: - TC55B4256J : SOJ28-P-400 Pin Names AO -A17 1/01 - 1/04 CE WE VDD GND Address Inputs Data Inputs/Outputs Chip Enable Input Write Enable Input Power (+5V) Ground Pin Connection (Top View) TCSSB~256J A3 A4 A2 AS A1 A6 AO A7 CE A8 1/01 1/04 Veo GND GND Voo 1/02 1/03 WE A9 A17 A10 A16 A1' A1S A12 A14 A13 (SOJ) TOSHIBA AMERICA ELEC'rRONIC COMPONENTS, INC.
8-103 TC55B4256J-12115/20 Block Diagram AS ( AO 1/01 ( 1/04 Static RAM MEMORY CELL ARRAY .
- - 0 VOD o GND COLUMN DECODER I A17 ~ A9 CE 0 - - _ - - 0 1 CE Operating Mode ~MODE Read Write Standby *H orL CE L L H WE H L * 1/0 Output Input High-Z POWER 1000 1000 loos Maximum Ratings SYMBOL ITEM RATING UNIT Voo Power Supply Voltage VIN Input Voltage VI/O Input/Output Voltage Po Power Dissipation TSOLOER Soldering Temperature • Time TSTRG Storage Temperature TOPR Operating Temperature *-3V with a pulse width of 10ns ...


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