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CY7C421-20VC PDF预览

CY7C421-20VC

更新时间： 2024-11-06 05:09:39
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 存储内存集成电路光电二极管先进先出芯片时钟
页数 文件大小 规格书
22页 512K
描述
256/512/1K/2K/4K x 9 Asynchronous FIFO

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CY7C421-20VC 技术参数

是否Rohs认证：不符合生命周期：Obsolete
零件包装代码：SOJ包装说明：0.300 INCH, SOJ-28
针数：28Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.32.00.71
Factory Lead Time：1 week风险等级：5.69
Is Samacsys：N最长访问时间：20 ns
其他特性：RETRANSMIT最大时钟频率 (fCLK)：33.33 MHz
周期时间：30 nsJESD-30 代码：R-PDSO-J28
JESD-609代码：e0长度：17.907 mm
内存密度：4608 bit内存集成电路类型：OTHER FIFO
内存宽度：9湿度敏感等级：3
功能数量：1端子数量：28
字数：512 words字数代码：512
工作模式：ASYNCHRONOUS最高工作温度：70 °C
最低工作温度：组织：512X9
输出特性：3-STATE可输出：NO
封装主体材料：PLASTIC/EPOXY封装代码：SOJ
封装等效代码：SOJ28,.34封装形状：RECTANGULAR
封装形式：SMALL OUTLINE并行/串行：PARALLEL
峰值回流温度（摄氏度）：220电源：5 V
认证状态：Not Qualified座面最大高度：3.556 mm
最大待机电流：0.005 A子类别：FIFOs
最大压摆率：0.055 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：J BEND端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.5057 mmBase Number Matches：1

CY7C421-20VC 数据手册

 浏览型号CY7C421-20VC的Datasheet PDF文件第2页浏览型号CY7C421-20VC的Datasheet PDF文件第3页浏览型号CY7C421-20VC的Datasheet PDF文件第4页浏览型号CY7C421-20VC的Datasheet PDF文件第5页浏览型号CY7C421-20VC的Datasheet PDF文件第6页浏览型号CY7C421-20VC的Datasheet PDF文件第7页 
19/21/25/29/  
CY7C419/21/25/29/33  
256/512/1K/2K/4K x 9 Asynchronous FIFO  
Each FIFO memory is organized such that the data is read in  
the same sequential order that it was written. Full and Empty  
Features  
• Asynchronous first-in first-out (FIFO) buffer memories  
• 256 x 9 (CY7C419)  
• 512 x 9 (CY7C421)  
• 1K x 9 (CY7C425)  
• 2K x 9 (CY7C429)  
flags are provided to prevent overrun and underrun. Three ad-  
ditional pins are also provided to facilitate unlimited expansion  
in width, depth, or both. The depth expansion technique steers  
the control signals from one device to another in parallel, thus  
eliminating the serial addition of propagation delays, so that  
throughput is not reduced. Data is steered in a similar manner.  
• 4K x 9 (CY7C433)  
• Dual-ported RAM cell  
• High-speed 50.0-MHz read/write independent of  
depth/width  
• Low operating power: ICC = 35 mA  
• Empty and Full flags (Half Full flag in standalone)  
• TTL compatible  
• Retransmit in standalone  
• Expandable in width  
• PLCC, 7x7 TQFP, SOJ, 300-mil and 600-mil DIP  
The read and write operations may be asynchronous; each  
can occur at a rate of 50.0 MHz. The write operation occurs  
when the write (W) signal is LOW. Read occurs when read (R)  
goes LOW. The nine data outputs go to the high-impedance  
state when R is HIGH.  
A Half Full (HF) output flag is provided that is valid in the stan-  
dalone and width expansion configurations. In the depth ex-  
pansion configuration, this pin provides the expansion out  
(XO) information that is used to tell the next FIFO that it will be  
activated.  
In the standalone and width expansion configurations, a LOW  
on the retransmit (RT) input causes the FIFOs to retransmit  
the data. Read enable (R) and write enable (W) must both be  
HIGH during retransmit, and then R is used to access the data.  
• Pin compatible and functionally equivalent to IDT7200,  
IDT7201, IDT7202, IDT7203, IDT7204, AM7200, AM7201,  
AM7202, AM7203, and AM7204  
Functional Description  
The CY7C419, CY7C420, CY7C421, CY7C424, CY7C425,  
CY7C428, CY7C429, CY7C432, and CY7C433 are fabricated  
using an advanced 0.65-micron P-well CMOS technology. In-  
put ESD protection is greater than 2000V and latch-up is pre-  
vented by careful layout and guard rings.  
The CY7C419, CY7C420/1, CY7C424/5, CY7C428/9, and  
CY7C432/3 are first-in first-out (FIFO) memories offered in  
600-mil wide and 300-mil wide packages. They are, respec-  
tively, 256, 512, 1,024, 2,048, and 4,096 words by 9-bits wide.  
Cypress Semiconductor Corporation  
•
3901 North First Street  
•
San Jose  
•
CA 95134  
•
408-943-2600  
Document #: 38-06001 Rev. *A  
Revised December 30, 2002  
1234567...22

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与CY7C421-20VC相关器件

型号 品牌 获取价格 描述 数据表
CY7C421-20VCR CYPRESS

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 		暂无描述
CY7C421-20VCT CYPRESS

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 		FIFO, 512X9, 20ns, Asynchronous, CMOS, PDSO28, 0.300 INCH, SOJ-28
CY7C421-20VI ETC

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 		x9 Asynchronous FIFO
CY7C421-20VIT CYPRESS

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 		FIFO, 512X9, 20ns, Asynchronous, CMOS, PDSO28, 0.300 INCH, PLASTIC, SOJ-28
CY7C421-20VXC CYPRESS

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 		256/512/1K/2K/4K x 9 Asynchronous FIFO
CY7C421-20VXCT CYPRESS

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 		FIFO, 512X9, 20ns, Asynchronous, CMOS, PDSO28
CY7C421-25AC ROCHESTER

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 		512X9 OTHER FIFO, 25ns, PQFP32, PLASTIC, TQFP-32
CY7C421-25AC CYPRESS

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 		FIFO, 512X9, 25ns, Asynchronous, CMOS, PQFP32, PLASTIC, TQFP-32
CY7C421-25DC CYPRESS

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 		FIFO, 512X9, 25ns, Asynchronous, CMOS, CDIP28, 0.300 INCH, CERDIP-28
CY7C421-25DI ETC

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 		x9 Asynchronous FIFO

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