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CY7C4251-15AC PDF预览

CY7C4251-15AC

更新时间： 2024-11-27 03:58:23
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 先进先出芯片
页数 文件大小 规格书
18页 412K
描述
64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs

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中文翻译

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CY7C4251-15AC 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：7 X 7 MM, 1 MM HEIGHT, PLASTIC, TQFP-32
针数：32Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.32.00.71
风险等级：5.79最长访问时间：10 ns
最大时钟频率 (fCLK)：66.7 MHz周期时间：15 ns
JESD-30 代码：S-PQFP-G32JESD-609代码：e0
长度：7 mm内存密度：73728 bit
内存集成电路类型：OTHER FIFO内存宽度：9
功能数量：1端子数量：32
字数：8192 words字数代码：8000
工作模式：SYNCHRONOUS最高工作温度：70 °C
最低工作温度：组织：8KX9
输出特性：3-STATE可输出：YES
封装主体材料：PLASTIC/EPOXY封装代码：TQFP
封装等效代码：TQFP32,.35SQ,32封装形状：SQUARE
封装形式：FLATPACK, THIN PROFILE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：1.2 mm
最大待机电流：0.028 A子类别：FIFOs
最大压摆率：0.13 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
端子形式：GULL WING端子节距：0.8 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：7 mm

CY7C4251-15AC 数据手册

 浏览型号CY7C4251-15AC的Datasheet PDF文件第2页浏览型号CY7C4251-15AC的Datasheet PDF文件第3页浏览型号CY7C4251-15AC的Datasheet PDF文件第4页浏览型号CY7C4251-15AC的Datasheet PDF文件第5页浏览型号CY7C4251-15AC的Datasheet PDF文件第6页浏览型号CY7C4251-15AC的Datasheet PDF文件第7页 
CY7C4421/4201/4211/4221  
CY7C4231/4241/4251  
64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs  
Features  
Functional Description  
• High-speed, low-power, First-In, First-Out (FIFO)  
memories  
The CY7C42X1 are high-speed, low-power FIFO memories  
with clocked Read and Write interfaces. All are 9 bits wide. The  
CY7C42X1 are pin-compatible to IDT722X1. Programmable  
features include Almost Full/Almost Empty flags. These FIFOs  
provide solutions for a wide variety of data buffering needs,  
including high-speed data acquisition, multiprocessor inter-  
faces, and communications buffering.  
— 64 × 9 (CY7C4421)  
— 256 × 9 (CY7C4201)  
— 512 × 9 (CY7C4211)  
— 1K × 9 (CY7C4221)  
— 2K × 9 (CY7C4231)  
— 4K × 9 (CY7C4241)  
— 8K × 9 (CY7C4251)  
These FIFOs have 9-bit input and output ports that are  
controlled by separate clock and enable signals. The input port  
is controlled by a free-running clock (WCLK) and two  
Write-enable pins (WEN1, WEN2/LD).  
• High-speed 100-MHz operation (10 ns Read/Write cycle  
time)  
• Low power (ICC = 35 mA)  
• Fully asynchronous and simultaneous Read and Write  
operation  
• Empty, Full, and Programmable Almost Empty and  
Almost Full status flags  
• TTL-compatible  
• Expandable in width  
• Output Enable (OE) pin  
• Independent Read and Write enable pins  
• Center power and ground pins for reduced noise  
• Width-expansion capability  
• Space saving 7 mm × 7 mm 32-pin TQFP  
• 32-pin PLCC  
When WEN1 is LOW and WEN2/LD is HIGH, data is written  
into the FIFO on the rising edge of the WCLK signal. While  
WEN1, WEN2/LD is held active, data is continually written into  
the FIFO on each WCLK cycle. The output port is controlled in  
a similar manner by a free-running Read clock (RCLK) and two  
Read-enable pins (REN1, REN2). In addition, the CY7C42X1  
has an output enable pin (OE). The Read (RCLK) and Write  
(WCLK) clocks may be tied together for single-clock operation  
or the two clocks may be run independently for asynchronous  
Read/Write applications. Clock frequencies up to 100 MHz are  
achievable.  
Depth expansion is possible using one enable input for system  
control, while the other enable is controlled by expansion logic  
to direct the flow of data.  
• Pin-compatible and functionally equivalent to  
IDT72421, 72201, 72211, 72221, 72231, and 72241  
D
0- 8  
Logic Block Diagram  
Pin Configuration  
PLCC  
Top View  
INPUT  
REGISTER  
4
3
2
1 323130  
29  
28  
D
RS  
WEN1  
1
5
6
7
8
9
D
0
WCLK WEN1 WEN2/LD  
PAF  
PAE  
27 WCLK  
26  
25  
24  
23  
22  
21  
WEN2/LD  
FLAG  
PROGRAM  
REGISTER  
GND  
REN1  
RCLK  
REN2  
OE  
V
CC  
Q
Q
Q
Q
10  
11  
12  
13  
8
7
6
5
Write  
CONTROL  
EF  
14151617181920  
PAE  
PAF  
FF  
FLAG  
LOGIC  
Dual Port  
RAM Array  
64 x 9  
TQFP  
Top View  
Write  
POINTER  
Read  
POINTER  
32 31 30 29 28 27 26 25  
8k x 9  
1
2
3
4
5
6
7
8
24  
WEN1  
D
D
1
0
23  
WCLK  
WEN2/LD  
22  
21  
20  
19  
PAF  
PAE  
RESET  
LOGIC  
RS  
V
CC  
Q
Q
GND  
8
7
REN1  
RCLK  
REN2  
Q
6
Q
5
THREE-STATE  
OUTPUTREGISTER  
18  
17  
Read  
CONTROL  
9 10 11 1213 14 15 16  
OE  
Q
0- 8  
RCLK REN1 REN2  
Cypress Semiconductor Corporation  
•
3901 North First Street  
•
San Jose  
•
CA 95134  
•
408-943-2600  
Document #: 38-06016 Rev. *A  
Revised March 6, 2202  
1234567...18

中文翻译

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CY7C4251-15AC 替代型号

型号 品牌 替代类型 描述 数据表
CY7C4251-25AC CYPRESS

完全替代

 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs
CY7C4251-15AXC CYPRESS

完全替代

 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs
CY7C4251V-25AC CYPRESS

完全替代

 Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs

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CY7C4251-15JC CYPRESS

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CY7C4251-15JCT CYPRESS

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 		FIFO, 8KX9, Synchronous, CMOS, PQCC32, PLASTIC, LCC-32
CY7C4251-15JXC CYPRESS

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 		64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs
CY7C4251-15JXCT CYPRESS

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CY7C4251-25AC CYPRESS

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 		64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs
CY7C4251-25AI CYPRESS

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CY7C4251-25JC CYPRESS

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 		64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs

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