MSM514800C-70JS View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

MFG CO.

MSM514800C-70JS

524,288-Word · 8-Bit DYNAMIC RAM : FAST PAGE MODE TYPE

Oki Electric Industry 

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¡ Semiconductor

MSM514800C/CSL

AC Characteristics (2/2)

(VCC = 5 V ±10%, Ta = 0°C to 70°C) Note 1, 2, 3

Parameter

MSM514800 MSM514800 MSM514800

Symbol C/CSL-60 C/CSL-70 C/CSL-80 Unit Note

Min. Max. Min. Max. Min. Max.

Write Command Set-up Time

tWCS

0

—

0

—

0

— ns 9

Write Command Hold Time

tWCH 15

—

15

—

15

— ns

Write Command Hold Time from RAS

tWCR 50

—

55

—

60

— ns

Write Command Pulse Width

tWP 15 — 15 — 15 — ns

OE Command Hold Time

tOEH 15

—

20

—

20

— ns

Write Command to RAS Lead Time

tRWL 15

—

20

—

20

— ns

Write Command to CAS Lead Time

tCWL 15

—

20

—

20

— ns

Data-in Set-up Time

tDS

0

—

0

—

0

— ns 10

Data-in Hold Time

tDH 15 — 15 — 15 — ns 10

Data-in Hold Time from RAS

tDHR 50

—

55

—

60

— ns

OE to Data-in Delay Time

tOED 15

—

20

—

20

— ns

CAS to WE Delay Time

tCWD 40

—

50

—

50

— ns 9

Column Address to WE Delay Time

tAWD 60

—

65

—

70

— ns 9

RAS to WE Delay Time

tRWD 90 — 100 — 110 — ns 9

CAS Precharge WE Delay Time

tCPWD 65

—

70

—

75

— ns 9

CAS Active Delay Time from RAS Precharge tRPC 10

—

10

—

10

— ns

RAS to CAS Set-up Time (CAS before RAS) tCSR 10

—

10

—

10

— ns

RAS to CAS Hold Time (CAS before RAS) tCHR 15

—

15

—

15

— ns

RAS Pulse Width

(CAS before RAS Self-Refresh)

tRASS 100 — 100 — 100 — ms 11

RAS Precharge Time

(CAS before RAS Self-Refresh)

tRPS 110 — 130 — 150 — ns 11

CAS Hold Time

(CAS before RAS Self-Refresh)

tCHS –40 — –50 — –60 — ns 11

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