Datasheet > PDM41028SA10SOITY

PDM41028SA10SOITY

更新时间： 2024-10-29 06:00:07

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
8页	237K
描述
1 Megabit Static RAM 256K x 4-Bit

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PDM41028SA10SOITY 数据手册

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PDM41028

1 Megabit Static RAM

256K x 4-Bit

Description

Features

The PDM41028 is a high-performance CMOS static

RAM organized as 262,144 x 4 bits. 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.

■ High speed access times

Com’l: 10, 12 and 15 ns

Ind’l: 12 and 15 ns

■ Low power operation (typical)

- PDM41028SA

Active: 400 mW

Standby: 150 mW

- PDM41028LA

Active: 350 mW

Standby: 100 mW

The PDM41028 operates from a single +5V power

supply and all the inputs and outputs are fully TTL-

compatible. The PDM41028 comes in two versions,

the standard power version PDM41028SA and a low

power version the PDM41028LA. The two versions

are functionally the same and only differ in their

power consumption.

■ Single +5V (±10%) power supply

■ TTL-compatible inputs and outputs

■ Packages

The PDM41028 is available in a 28-pin 300-mil SOJ,

and a 28-pin 400-mil SOJ for surface mount

applications.

Plastic SOJ (300 mil) - TSO

Plastic SOJ (400 mil) - SO

Functional Block Diagram

A₀

Decoder

Memory

•

Addresses

Matrix

•

A₁₇

• • • • •

Column I/O

I/O₀

I/O₁

I/O₂

I/O₃

Input

Data

Control

Rev. 2.2 - 4/29/98

12 3 4 5 6 7 8

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