Datasheet > 7025L20GGI

7025L20GGI

更新时间： 2023-03-15 00:00:00

品牌	Logo	应用领域
艾迪悌 - IDT		静态存储器
页数	文件大小	规格书
22页	204K
描述
Dual-Port SRAM

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数据手册

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7025L20GGI 数据手册

IDT7025S/L

High-Speed 8K x 16 Dual-Port Static RAM

Military, Industrial and Commercial Temperature Ranges

Truth Table I: Non-Contention Read/Write Control

Inputs⁽¹⁾

Outputs

R/W

I/O^8-15

High-Z

DATA^IN

High-Z

DATA^IN

I/O0-7

High-Z

DATA^IN

DATAIN

High-Z

DATA^OUT

DATAOUT

High-Z

Mode

SEM

Deselected

Both Bytes Deselected

Write to Upper Byte Only

Write to Lower Byte Only

Write to Both Bytes

DATA^OUT

High-Z

Read Upper Byte Only

Read Lower Byte Only

Read Both Bytes

DATA^OUT

High-Z

Outputs Disabled

2683 tbl 02

NOTE:

1. A0L — A12L ≠ A0R — A12R.

Truth Table II: Semaphore Read/Write Control⁽¹⁾

Inputs

Outputs

R/W

I/O^8-15

I/O0-7

Mode

SEM

DATAOUT

DATA^OUT

DATA^IN

DATAOUT

DATAIN

Read Semaphore Flag Data Out

↑

Write I/O

into Semaphore Flag

DATA^IN

DATAIN

Write I/O

↑

____

Not Allowed

____

2683 tbl 03

NOTES:

1. There are eight semaphore flags written to via I/O0 and read from I/O0 - I/O15. These eight semaphores are addressed by A0 - A2.

6.542

1 2 3 456 7 8...22

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