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CY7C192

产品描述64 K × 4 Static RAM with Separate IO CMOS for optimum speed/power
文件大小353KB,共12页
制造商Cypress(赛普拉斯)
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CY7C192概述

64 K × 4 Static RAM with Separate IO CMOS for optimum speed/power

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CY7C192
64 K × 4 Static RAM with Separate IO
64 K × 4 Static RAM with Separate IO
Features
Functional Description
The CY7C192 is a high performance CMOS static RAM
organized as 65,536 × 4 bits with separate IO. Easy memory
expansion is provided by active LOW Chip Enable (CE) and
tri-state drivers. It has an automatic power down feature that
reduces power consumption by 75% when deselected.
Writing to the device is accomplished when the Chip Enable (CE)
and Write Enable (WE) inputs are both LOW.
Data on the four input pins (I
0
through I
3
) is written into the
memory location specified on the address pins (A
0
through A
15
).
Reading the device is accomplished by taking the Chip Enable
(CE) LOW while the Write Enable (WE) remains HIGH. Under
these conditions, the contents of the memory location specified
on the address pins appears on the four data output pins.
The output pins stay in high impedance state when Write Enable
(WE) is LOW or Chip Enable (CE) is HIGH.
A die coat ensures alpha immunity.
High speed
15 ns
CMOS for optimum speed/power
Low active power
860 mW
Low standby power
55 mW
TTL-compatible inputs and outputs
Automatic power down when deselected
Available in Pb-free 28-pin Molded SOJ package
Logic Block Diagram
I
0
I
1
I
2
I
3
INPUT BUFFER
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
9
ROW DECODER
O
0
SENSE AMPS
64K x 4
ARRAY
O
1
O
2
O
3
COLUMN
DECODER
POWER
DOWN
A
10
A
11
A
12
A
13
A
14
A
15
CE
WE
Cypress Semiconductor Corporation
Document #: 38-05047 Rev. *H
198 Champion Court
San Jose
,
CA 95134-1709
408-943-2600
Revised June 1, 2011
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