Datasheet > 7C187-35

7C187-35

更新时间： 2022-11-27 18:13:14

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		/
页数	文件大小	规格书
9页	145K
描述
64K x 1 Static RAM

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数据手册

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7C187-35 数据手册

CY7C187

Switching Characteristics Over the Operating Range^[6](continued)

7C187-25

7C187-35

Min. Max.

Parameters

Description

Min.

Max.

Units

READ CYCLE

t_RC

Read Cycle Time

t_AA

Address to Data Valid

t_OHA

Output Hold from Address Change

CE LOW to Data Valid

CE LOW to Low Z^[7]

t_ACE

t_LZCE

t_HZCE

CE HIGH to High Z^{[7, 8]}

t_PU

CE LOW to Power Up

t_PD

CE HIGH to Power Down

WRITE CYCLE^[9]

t_WC

Write Cycle Time

t_SCE

t_AW

CE LOW to Write End

Address Set-Up to Write End

Address Hold from Write End

Address Set-Up to Write Start

WE Pulse Width

t_HA

t_SA

t_PWE

t_SD

Data Set-Up to Write End

Data Hold from Write End

WE HIGH to Low

t_HD

t_LZWE

t_HZWE

WE LOW to High Z^[8]

Switching Waveforms

Read Cycle No. 1^{[10, 11]}

ADDRESS

OHA

DATA OUT

PREVIOUS DATA VALID

DATA VALID

C187–6

Notes:

10. WE is HIGH for read cycle.

11. Device is continuously selected, CE = V_IL

Document #: 38-05044 Rev. **

Page 4 of 9

1 2 345 6 7...9

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