MSC23V47257TD-XXBS18 datasheet(9/10 Pages) OKI

Part #	MSC23V47257TD-XXBS18

Description	4,194,304-Word x 72-Bit DYNAMIC RAM MODULE : FAST PAGE MODE TYPE WITH EDO

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Manufacturer	OKI [OKI electronic componets]

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Semiconductor

MSC23V47257TD

AC Characteristics (2/2)

(VCC = 3.3V ±0.3V, Ta = 0°C to 70°C ) Note: 1, 2, 3, 12, 13

-50

-60

-70

Parameter

Symbol

Min.

Max.

Min.

Max.

Min.

Max.

Unit

Note

Read Command Set-up Time

tRCS

0-

ns

Read Command Hold Time

tRCH

0-

ns

9

Read Command Hold Time referenced to /RAS

tRRH

0-

ns

9

Write Command Set-up Time

tWCS

0-

ns

10

Write Command Hold Time

tWCH

7

-

10

-

13

-

ns

Write Command Pulse Width

tWP

7

-

10

-

10

-

ns

/WE Pulse Width (DQ Disable)

tWPE

7

-

10

-

10

-

ns

/OE Command Hold Time

tOEH

7

-

10

-

13

-

ns

/OE Precharge Time

tOEP

7

-

10

-

10

-

ns

/OE Command Hold Time

tOCH

7

-

10

-

10

-

ns

Write Command to /RAS Lead Time

tRWL

7

-

10

-

13

-

ns

Write Command to /CAS Lead Time

tCWL

7

-

10

-

13

-

ns

Data-in Set-up Time

tDS

0-

ns

11

Data-in Hold Time

tDH

7

-

10

-

13

-

ns

11

/OE to Data-in Delay Time

tOED

13

-

15

-

20

-

ns

/CAS to /WE Delay Time

tCWD

30

-

34

-

44

-

ns

10

Column Address to /WE Delay Time

tAWD

42

-

49

-

59

-

ns

10

/RAS to /WE Delay Time

tRWD

67

-

79

-

94

-

ns

10

/CAS Precharge /WE Delay Time

tCPWD

47

-

54

-

64

-

ns

10

/CAS Active Delay Time from /RAS Precharge

tRPC

5-

ns

/RAS to /CAS Set-up Time (/CAS before /RAS)

tCSR

5-

ns

/RAS to /CAS Hold Time (/CAS before /RAS)

tCHR

10

-

10

-

10

-

ns

/WE to /RAS Precharge Time (/CAS before /RAS)

tWRP

10

-

10

-

10

-

ns

/WE Hold Time from /RAS (/CAS before /RAS)

tWRH

10

-

10

-

10

-

ns

/RAS to /WE Set-up Time (Test Mode)

tWTS

10

-

10

-

10

-

ns

/RAS to /WE Hold Time (Test Mode)

tWTH

10

-

10

-

10

-

ns

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