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CY62148CV33 PDF预览

CY62148CV33

更新时间: 2024-01-09 20:09:21
品牌 Logo 应用领域
赛普拉斯 - CYPRESS /
页数 文件大小 规格书
13页 274K
描述
512K x 8 MoBL Static RAM

CY62148CV33 数据手册

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CY62148CV25/30/33  
MoBL™  
512K x 8 MoBL Static RAM  
advanced circuit design to provide ultra-low active current.  
This is ideal for providing More Battery Life(MoBL) in por-  
table applications such as cellular telephones. The device also  
has an automatic power-down feature that significantly reduc-  
es power consumption by 80% when addresses are not tog-  
gling. The device can be put into standby mode when dese-  
lected (CE HIGH).  
Features  
High Speed  
55 ns and 70 ns availability  
Low voltage range:  
CY62148CV25: 2.2V2.7V  
CY62148CV30: 2.7V3.3V  
Writing to the device is accomplished by taking Chip Enable  
(CE) and Write Enable (WE) inputs LOW. Data on the eight I/O  
pins (I/O0 through I/O7) is then written into the location speci-  
fied on the address pins (A0 through A18).  
CY62148CV33: 3.0V3.6V  
Pin compatible with CY62148V  
Ultra low active power  
Reading from the device is accomplished by taking Chip En-  
able (CE) and Output Enable (OE) LOW while forcing Write  
Enable (WE) HIGH. Under these conditions, the contents of  
the memory location specified by the address pins will appear  
on the I/O pins.  
Typical active current: 1.5 mA @ f = 1MHz  
Typicalactivecurrent:5.5mA@f=fmax (70nsspeed)  
Low standby power  
Easy memory expansion with CE and OE features  
Automatic power-down when deselected  
CMOS for optimum speed/power  
The eight input/output pins (I/O0 through I/O7) are placed in a  
high-impedance state when the device is deselected (CE  
HIGH), the outputs are disabled (OE HIGH), or during a write  
operation (CE LOW and WE LOW).  
Functional Description  
The CY62148CV25/30/33 are available in a 36-ball FBGA  
package.  
The CY62148CV25/30/33 are high-performance CMOS static  
RAMs organized as 512K words by 8 bits. This device features  
Logic Block Diagram  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
0
1
2
Data in Drivers  
A
0
A
1
A
2
A
3
A
4
A
3
4
5
6
512K x 8  
ARRAY  
5
A
6
A
A
A
7
8
9
POWER  
DOWN  
COLUMN  
DECODER  
CE  
I/O  
WE  
7
OE  
Cypress Semiconductor Corporation  
3901 North First Street  
San Jose  
CA 95134  
408-943-2600  
Document #: 38-05035 Rev. *A  
Revised September 7, 2001  

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