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PDM41256 Datasheet

  • PDM41256

  • 256K Static RAM 32K x 8-Bit

  • 8頁

  • ETC

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PDM41256
256K Static RAM
32K x 8-Bit
Features
s
High-speed access times
Com鈥檒: 7, 8, 10, 12, and 15 ns
Ind鈥檒: 8, 10, 12, and 15 ns
s
Low power operation (typical)
- PDM41256SA
Active: 400 mW
Standby: 150 mW
- PDM41256LA
Active: 350 mW
Standby: 25 mW
s
Single +5V (鹵10%) power supply
s
TTL-compatible inputs and outputs
s
Packages
Plastic SOJ (300 mil) - TSO
Plastic TSOP - T
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Description
The PDM41256 is a high-performance CMOS static
RAM organized as 32,768 x 8 bits. This product is
produced in Paradigm鈥檚 proprietary CMOS
technology which offers the designer the highest
speed parts. Writing to this device is accomplished
when the write enable (WE) and the chip enable
(CE) inputs are both LOW. Reading is accomplished
when WE remains HIGH and CE and OE are both
LOW.
The PDM41256 operates from a single +5V power
supply and all the inputs and outputs are fully TTL-
compatible. The PDM41256 comes in two versions,
the standard power version PDM41256SA and a low
power version the PDM41256LA. The two versions
are functionally the same and only differ in their
power consumption.
The PDM41256 is available in a 28-pin plastic TSOP
and a 28-pin 300-mil plastic SOJ.
Functional Block Diagram
Rev. 2.0 - 7/17/96
3-33

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