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參數(shù)資料
| 型號： | CY7C195B-25PC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | 256 Kb (64K x 4) Static RAM |
| 中文描述： | 64K X 4 STANDARD SRAM, 25 ns, PDIP28 |
| 封裝： | 6.90 X 35.60 MM, 3.50 MM HEIGHT, DIP-28 |
| 文件頁數(shù)： | 1/13頁 |
| 文件大小： | 256K |
| 代理商： | CY7C195B-25PC |
256 Kb (64K x 4) Static RAM
CY7C194B
CY7C195B
Cypress Semiconductor Corporation
Document #: 38-05409 Rev. *A
3901 North First Street
San Jose
,
CA 95134
408-943-2600
Revised September 17, 2003
Features
Fast access time: 12 ns, 15 ns, and 25 ns
Wide voltage range: 5.0V ± 10% (4.5V to 5.5V)
CMOS for optimum speed/power
TTL-compatible inputs and outputs
Available in 24 DIP, 24 SOJ, 28 DIP, and 28 SOJ
General Description
1
The CY7C194B-CY7C195B is a high-performance CMOS
Asynchronous SRAM organized as 64K × 4 bits that supports
an asynchronous memory interface. The device features an
automatic power-down feature that significantly reduces
power consumption when deselected. Output enable (OE) is
supported only in CY7C195B.
2
See the Truth Table in this data sheet for a complete
description of read and write modes.
The CY7C194B-CY7C195B is available in 24 DIP, 24 SOJ, 28
DIP, and 28 SOJ package(s).
Notes:
1. For best-practice recommendations, please refer to the Cypress application note
System Design Guidelines
on www.cypress.com.
2. All OE-specific descriptions and parameters in this datasheet pertain to CY7C195 only.
R
RAM Array
Column Decoder
Input Buffer
S
A
X
Power
Down
Circuit
I/Ox
OE
WE
CE
X
(7C195 only)
Logic Block Diagram
Product Portfolio
12 ns
12
90
10
15 ns
15
80
10
25 ns
25
80
10
Unit
ns
mA
mA
Maximum Access Time
Maximum Operating Current
Maximum CMOS Standby Current
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CY7C194 | 64K x 4 Static RAM(64K x 4靜態(tài) RAM) |
| CY7C195 | 64K x 4 Static RAM(64K x 4靜態(tài) RAM) |
| CY7C196 | 64K x 4 Static RAM(64K x 4靜態(tài) RAM) |
| CY7C1992BV18 | 18-Mbit DDR-II SIO SRAM 2-Word(2字Burst結(jié)構(gòu),18-Mbit DDR-II SIO SRAM) |
| CY7C199 | 32K x 8 Static RAM(32K x 8靜態(tài) RAM) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY7C196-20VC | 制造商:Cypress Semiconductor 功能描述: |
| CY7C196-25VC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CY7C19635PC | 制造商:CYPRESS 功能描述:* |
| CY7C19645PC | 制造商:CYPRESS 功能描述:* |
| CY7C197 WAF | 制造商:Cypress Semiconductor 功能描述: |
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