参数资料
型号: IDT71256L25Y
厂商: IDT, Integrated Device Technology Inc
文件页数: 1/10页
文件大小: 0K
描述: IC SRAM 256KBIT 25NS 28SOJ
产品变化通告: Product Discontinuation 29/Apr/2010
标准包装: 27
格式 - 存储器: RAM
存储器类型: SRAM - 异步
存储容量: 256K (32K x 8)
速度: 25ns
接口: 并联
电源电压: 4.5 V ~ 5.5 V
工作温度: 0°C ~ 70°C
封装/外壳: 28-BSOJ
供应商设备封装: 28-SOJ
包装: 管件
其它名称: 71256L25Y
CMOS Static RAM
256K (32K x 8-Bit)
IDT71256S
IDT71256L
High-speed address/chip select time
Low-power operation
Battery Backup operation – 2V data retention
Produced with advanced high-performance CMOS
Input and output directly TTL-compatible
Available in standard 28-pin (300 or 600 mil) ceramic DIP,
Military product compliant to MIL-STD-883, Class B
Features
– Military: 25/35/45/55/70/85/100ns (max.)
– Commercial/Industrial: 20/25/35ns (max.) low power only
technology
28-pin (300 mil) SOJ
Description
The IDT 71256 is a 262,144-bit high-speed static RAM organized as
32K x 8. It is fabricated using high-performance, high-reliability CMOS
technology.
Functional Block Diagram
A 0
Address access times as fast as 20ns are available with power
consumption of only 350mW (typ.). The circuit also offers a reduced power
standby mode. When CS goes HIGH, the circuit will automatically go to and
remain in, a low-power standby mode as long as CS remains HIGH. This
capability provides significant system level power and cooling savings.
The low-power (L) version also offers a battery backup data retention
capability where the circuit typically consumes only 5 μ W when operating
off a 2V battery.
The IDT71256 is packaged in a 28-pin (300 or 600 mil) ceramic DIP,
a 28-pin 300 mil SOJ providing high board level packing densities.
The IDT71256 military RAM is manufactured in compliance with the
latest revision of MIL-STD-883, Class B, making it ideally suited to military
temperature applications demanding the highest level of performance and
reliability.
V CC
A 14
ADDRESS
DECODER
262,144 BIT
MEMORY ARRAY
GND
I/O 0
INPUT
I/O CONTROL
DATA
CIRCUIT
I/O 7
CS
,
OE
WE
CONTROL
CIRCUIT
1
2946 drw 01
SEPTEMBER 2013
?2013 Integrated Device Technology, Inc.
DSC-2946/13
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IDT71256L25YG8 功能描述:IC SRAM 256KBIT 25NS 28SOJ RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:72 系列:- 格式 - 存储器:RAM 存储器类型:SRAM - 同步 存储容量:4.5M(256K x 18) 速度:133MHz 接口:并联 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 封装/外壳:100-LQFP 供应商设备封装:100-TQFP(14x20) 包装:托盘
IDT71256L25YGI 功能描述:IC SRAM 256KBIT 25NS 28SOJ RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:72 系列:- 格式 - 存储器:RAM 存储器类型:SRAM - 同步 存储容量:4.5M(256K x 18) 速度:133MHz 接口:并联 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 封装/外壳:100-LQFP 供应商设备封装:100-TQFP(14x20) 包装:托盘
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