Datasheet > 70T35L20BF8

70T35L20BF8

更新时间： 2023-05-15 00:00:00

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
21页	251K
描述
CABGA-100, Reel

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中文翻译

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数据手册

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70T35L20BF8 数据手册

IDT70T35/34L (IDT70T/25/24L)

High-Speed 2.5V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM

PRELIMINARY

Industrial and Commercial Temperature Ranges

Truth Table I: Non-Contention Read/Write Control

Inputs⁽¹⁾

Outputs

(3)

(2)

R/W

I/O9-17

I/O0-8

Mode

SEM

High-Z

DATAIN

High-Z

DATAIN

High-Z

Deselected: Power Down

Both Bytes Deselected

Write to Upper Byte Only

Write to Lower Byte Only

Write to Both Bytes

High-Z

DATAIN

High-Z

DATAOUT

High-Z

DATAOUT

High-Z

Read Upper Byte Only

Read Lower Byte Only

Read Both Bytes

DATAOUT

High-Z

Outputs Disabled

5639 tbl 02

NOTE:

1. A0L A12L ≠ A0R A12R for IDT70T35 and IDT70T25; A0L A11L ≠ A0R A11R for IDT70T34 and IDT70T24.

2. Outputs for IDT70T25/24 are I/O0x - I/O7x.

3. Outputs for IDT70T25/24 are I/O8x - I/O15x.

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

Inputs

Outputs

(1)

R/W

I/O9-17

I/O0-8

Mode

Read Data in Semaphore Flag

SEM

DATAOUT

DATAIN

DATAOUT

DATAIN

Read Data in Semaphore Flag

Write DIN0 into Semaphore Flag

Not Allowed

↑

DATAIN

↑

____

Not Allowed

5639 tbl 03

NOTE:

1. There are eight semaphore flags written to via I/O0 and read from all of the I/O's (I/O0-I/O17 for IDT70T35/34) and (I/O0-I/O15 for IDT70T25/24). These eight semaphores

are addressed by A0-A2.

6.42

1...4 5 678 9 10...21

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