Datasheet > SRM2264LM12

SRM2264LM12

更新时间： 2024-11-11 15:52:47

品牌	Logo	应用领域
精工 - SEIKO		静态存储器光电二极管内存集成电路
页数	文件大小	规格书
12页	61K
描述
Standard SRAM, 8KX8, 120ns, CMOS, PDSO28, PLASTIC, SOP-28

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SRM2264LM12 数据手册

SRM2264L10/12

CMOS 64K-BIT STATIC RAM

● Low Supply Current

● Access Time 100ns/120ns

● 8,192 Words × 8 Bits, Asynchronous

■ DESCRIPTION

The SRM2264L10/12 is an 8,192-word × 8-bit asynchronous, static, random access memory on a

monolithic CMOS chip. Its very low standby power requirement makes it ideal for applications requir-

ing non-volatile storage with back-up batteries. The asynchronous and static nature of the memory

requires no external clock or refreshing circuit. Both the input and output ports are TTL compatible,

and the three-state output allows easy expansion of memory capacity.

■ FEATURES

•

Fast access time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SRM2264L10 . . . . . . . . . . . . . . . . . 100ns (Max)

SRM2264L12 . . . . . . . . . . . . . . . . . 120ns (Max)

•

Low supply current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standby

0.5µA (Typ)

Operation : 47mA (Typ) . . . . . . . . . . . . 100ns

45mA (Typ) . . . . . . . . . . . . 120ns

•

Completely static . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No clock required

Single power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V ± 10%

TTL compatible inputs and outputs

Three-state output with wired-OR capability

Non-volatile storage with back-up batteries

Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SRM2264L10/12 . . . . . . . . . . . DIP-28 pin (plastic)

SRM2264LM10/12 . . . . . . . SOP2-28 pin (plastic)

SRM2264LTM10/12 . . . . TSOP (I)-28 pin (plastic)

■ BLOCK DIAGRAM

128

Memory Cell Array

128 x 64 x 8

64 x 8

A10

A11

A12

Column Gate

CS1

CS2

I/O Buffer

I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 I/O8

000-97-MEM-1.0

S-MOSSystems,Inc.•150RiverOaksParkway•SanJose,CA95134•Tel:(408)922-0200•Fax:(408)922-0238

12 3 4 5 6 7...12

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