5秒后页面跳转
捷配首页

Datasheet > 存储 > SRAM> CY7C0251-25AC
CY7C0251-25AC PDF预览

CY7C0251-25AC

更新时间： 2024-09-18 00:01:31
品牌 Logo 应用领域
赛普拉斯 - CYPRESS /
页数 文件大小 规格书
21页 503K
描述
4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY

阅读下载

中文翻译

获取价格

CY7C0251-25AC 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：QFP包装说明：PLASTIC, TQFP-100
针数：100Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.32.00.41
风险等级：5.79最长访问时间：25 ns
其他特性：INTERRUPT FLAGI/O 类型：COMMON
JESD-30 代码：S-PQFP-G100JESD-609代码：e0
长度：14 mm内存密度：147456 bit
内存集成电路类型：DUAL-PORT SRAM内存宽度：18
湿度敏感等级：3功能数量：1
端口数量：2端子数量：100
字数：8192 words字数代码：8000
工作模式：ASYNCHRONOUS最高工作温度：70 °C
最低工作温度：组织：8KX18
输出特性：3-STATE可输出：YES
封装主体材料：PLASTIC/EPOXY封装代码：LFQFP
封装等效代码：QFP100,.63SQ,20封装形状：SQUARE
封装形式：FLATPACK, LOW PROFILE, FINE PITCH并行/串行：PARALLEL
峰值回流温度（摄氏度）：240电源：5 V
认证状态：Not Qualified座面最大高度：1.6 mm
最大待机电流：0.015 A最小待机电流：2 V
子类别：SRAMs最大压摆率：0.25 mA
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：4.5 V
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：30宽度：14 mm
Base Number Matches：1

CY7C0251-25AC 数据手册

 浏览型号CY7C0251-25AC的Datasheet PDF文件第2页浏览型号CY7C0251-25AC的Datasheet PDF文件第3页浏览型号CY7C0251-25AC的Datasheet PDF文件第4页浏览型号CY7C0251-25AC的Datasheet PDF文件第5页浏览型号CY7C0251-25AC的Datasheet PDF文件第6页浏览型号CY7C0251-25AC的Datasheet PDF文件第7页 
CY7C024/0241  
CY7C025/0251  
4K x 16/18 and 8K x 16/18 Dual-Port  
Static RAM with SEM, INT, BUSY  
Features  
Functional Description  
• True Dual-Ported memory cells which allow  
The CY7C024/0241 and CY7C025/0251 are low-power  
simultaneous reads of the same memory location  
• 4K x 16 organization (CY7C024)  
• 4K x 18 organization (CY7C0241)  
• 8K x 16 organization (CY7C025)  
• 8K x 18 organization (CY7C0251)  
• 0.65-micron CMOS for optimum speed/power  
• High-speed access: 15 ns  
CMOS 4K x 16/18 and 8K x 16/18 dual-port static RAMs. Var-  
ious arbitration schemes are included on the CY7C024/0241  
and CY7C025/0251 to handle situations when multiple pro-  
cessors access the same piece of data. Two ports are provid-  
ed, permitting independent, asynchronous access for reads  
and writes to any location in memory. The CY7C024/0241 and  
CY7C025/0251 can be utilized as standalone 16-/18-bit du-  
al-port static RAMs or multiple devices can be combined in  
order to function as a 32-/36-bit or wider master/slave du-  
al-port static RAM. An M/S pin is provided for implementing  
32-/36-bit or wider memory applications without the need for  
separate master and slave devices or additional discrete logic.  
Application areas include interprocessor/multiprocessor de-  
signs, communications status buffering, and dual-port vid-  
eo/graphics memory.  
• Low operating power: ICC = 150 mA (typ.)  
• Fully asynchronous operation  
• Automatic power-down  
• Expandable data bus to 32/36 bits or more using  
Master/Slave chip select when using more than one  
device  
• On-chip arbitration logic  
• Semaphores included to permit software handshaking  
between ports  
Each port has independent control pins: Chip Enable (CE),  
Read or Write Enable (R/W), and Output Enable (OE). Two flags  
are provided on each port (BUSY and INT). BUSY signals that the  
port is trying to access the same location currently being accessed by  
the other port. The Interrupt Flag (INT) permits communication be-  
tween ports or systems by means of a mail box. The semaphores are  
used to pass a flag, or token, from one port to the other to indicate that  
a shared resource is in use. The semaphore logic is comprised of  
eight shared latches. Only one sidecan control the latch (semaphore)  
at any time. Control of a semaphore indicates that a shared resource  
is in use. An automatic power-down feature is controlled indepen-  
dently on each port by a chip select (CE) pin.  
• INT flag for port-to-port communication  
• Separate upper-byte and lower-byte control  
• Pin select for Master or Slave  
• Available in 84-pin PLCC and 100-pin TQFP  
The CY7C024/0241 and CY7C025/0251 are available in  
84-pin PLCCs (CY7C024 and CY7C025 only) and 100-pin  
Thin Quad Plastic Flatpack (TQFP).  
v
Logic Block Diagram  
R/W  
L
R/W  
R
UB  
L
UB  
R
LB  
R
LB  
L
OE  
L
L
CE  
CE  
OE  
R
R
[3]  
15L  
[3]  
[2]  
–
–
I/O –I/O  
8L  
I/O  
I/O  
I/O  
8R  
0R  
15R  
I/O  
CONTROL  
I/O  
CONTROL  
[2]  
I/O –I/O  
0L  
I/O  
[1]  
7L  
7R  
[1]  
BUSY  
BUSY  
R
L
(CY7C025/0251)  
A
12R  
(CY7C025/0251)  
A
12L  
MEMORY  
ARRAY  
A
11L  
ADDRESS  
DECODER  
ADDRESS  
DECODER  
A
11R  
A
0L  
A
0R  
INTERRUPT  
SEMAPHORE  
ARBITRATION  
CE  
OE  
CE  
L
L
R
OE  
UB  
LB  
R
R
UB  
LB  
L
L
R
R/W  
R/W  
R
L
SEM  
SEM  
7C024–1  
R
L
INT  
L
M/S  
INT  
R
Cypress Semiconductor Corporation  
Document #: 38-06035 Rev. *B  
•
3901 North First Street  
•
San Jose  
•
CA 95134  
•
408-943-2600  
Revised June 22, 2004  
1234567...21

中文翻译

下载PDF

与CY7C0251-25AC相关器件

型号 品牌 获取价格 描述 数据表
CY7C0251-25AI CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C0251-25AXC CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C0251-25AXI CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C0251-35AC CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C0251-35AI CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C0251-35AXC CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C0251-35AXI CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C0251-55AC CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C0251-55AI CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C0251-55AXC CYPRESS

获取价格

 		4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY

与CY7C0251-25AC相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证