MSM518205 데이터 시트보기 (PDF) - Oki Electric Industry
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MSM518205 Datasheet PDF : 18 Pages
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MSM518205
AC Characteristics (2/2)
(VCC = 5 V ±10%, Ta = 0°C to 70°C) Note 1, 2, 3, 12, 13
Parameter
MSM518205 MSM518205 MSM518205
Symbol
-60
-70
-80
Unit Note
Min. Max. Min. Max. Min. Max.
Read Command Set-up Time
tRCS
0
—
0
—
0
— ns 14
Read Command Hold Time
tRCH
0
—
0
—
0
— ns 9, 14
Read Command Hold Time referenced to RAS tRRH 0
—
0
—
0
— ns 9
Write Command Set-up Time
tWCS 0
—
0
—
0
— ns 10, 14
Write Command Hold Time
Write Command Hold Time from RAS
tWCH 10 — 15 — 15 — ns 14
tWCR 45 — 50 — 55 — ns
Write Command Pulse Width
WE Pulse Width (DQ Disable)
OE Command Hold Time
OE Precharge Time
OE Command Hold Time
Write Command to RAS Lead Time
Write Command to CAS Lead Time
tWP 10 — 10 — 10 — ns
tWPE 5
— 10 — 10 — ns
tOEH 15 — 20 — 20 — ns
tOEP 10 — 10 — 10 — ns
tOCH 10 — 10 — 10 — ns
tRWL 15 — 20 — 20 — ns
tCWL 15 — 20 — 20 — ns 16
Data-in Set-up Time
tDS
0
Data-in Hold Time
Data-in Hold Time from RAS
OE to Data-in Delay Time
CAS to WE Delay Time
Column Address to WE Delay Time
RAS to WE Delay Time
tDH 15
tDHR 40
tOED 15
tCWD 40
tAWD 55
tRWD 85
CAS Precharge WE Delay Time
tCPWD 60
CAS Active Delay Time from RAS Precharge tRPC 10
RAS to CAS Set-up Time (CAS before RAS) tCSR 10
RAS to CAS Hold Time (CAS before RAS) tCHR 20
WE to RAS Precharge Time (CAS before RAS) tWRP 10
WE Hold Time from RAS (CAS before RAS) tWRH 10
RAS to WE Set-up Time (Test Mode)
tWTS 10
RAS to WE Hold Time (Test Mode)
tWTH 20
—
0
—
0
— ns 11, 14
— 15 — 15 — ns 11, 14
— 45 — 50 — ns
— 20 — 20 — ns
— 50 — 50 — ns 10
— 65 — 70 — ns 10
— 100 — 110 — ns 10
— 70 — 75 — ns 10, 15
— 10 — 10 — ns 14
— 10 — 10 — ns 14
— 20 — 20 — ns 15
— 10 — 10 — ns
— 10 — 10 — ns
— 10 — 10 — ns
— 20 — 20 — ns
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