MSM7630 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM7630

Universal Speech Processor

Oki Electric Industry 

¡ Semiconductor

MSM7630

DRAM Access

Parameter

RAS Delay Time

RAS Pulse Width

A to RAS Time

CAS Delay Time

CAS Pulse Width

A to CAS Time

RAS to CAS Time

WE to CAS Time

WE Delay Time

WE Pulse Width

A to WE Time

Required Precharge Time

CAS to RAS Time

CAS to D Time

Symbol

tRAS

tW_RAS

tW_ARAS

tCAS

tW_CAS

tW_ACAS

tW_RASCAS

tW_WECAS

tWE

tW_WE

tW_AWE

tW_PREC

tW_CASRAS

tW_EDO

Condition

—

—

—

2nt access falling

edge

Normal

Normal

Refresh

—

—

—

—

—

—

—

—

Hyper Mode

(VDD = 3.0 to 3.6 V, TOPE = –40 to +85°C)

Min.

Typ.

Max. Unit

—

—

18

ns

3

—

Note 1 tCYC

1

—

—

tCYC

—

— 18 + 0.5 tCYC ns

—

—

18

ns

1.5

—

2

tCYC

4

—

0.5

—

5

tCYC

1

ns

1.5

—

1.5

—

2

tCYC

2

tCYC

—

—

20

ns

3

—

Note 1 tCYC

—

1

—

tCYC

1

—

Note 2 tCYC

—

1

—

tCYC

—

—

1

tCYC

General Device Access

Parameter

AS Delay Time

Symbol

tAS

Condition

—

(VDD = 3.0 to 3.6 V, TOPE = –40 to +85°C)

Min.

Typ.

Max. Unit

—

—

18

ns

8/95

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