MSM514252A-70JS Ver la hoja de datos (PDF) - Oki Electric Industry
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MSM514252A-70JS Datasheet PDF : 33 Pages
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¡ Semiconductor
MSM514252A
AC Characteristics (2/3)
(VCC = 5 V ±10%, Ta = 0°C to 70°C) Note 4, 5, 6
Parameter
-70
-80
-10
Symbol
Unit Note
Min. Max. Min. Max. Min. Max.
Data Set-up Time
Data Hold Time
Data Hold Time referenced to RAS
Write Command Set-up Time
RAS to WE Delay Time
Column Address to WE Delay Time
CAS to WE Delay Time
Data to CAS Delay Time
Data to OE Delay Time
Access Time from OE
Output Buffer Turn-off Delay from OE
OE to Data Delay Time
OE Command Hold Time
RAS Hold Time referenced to OE
CAS Set-up Time for CAS before RAS Cycle
CAS Hold Time for CAS before RAS Cycle
RAS Precharge to CAS Active Time
Refresh Period
WB Set-up Time
WB Hold Time
tDS
0 — 0 — 0 — ns 11
tDH 15 — 15 — 15 — ns 11
tDHR 55 — 55 — 70 — ns
tWCS 0 — 0 — 0 — ns 12
tRWD 100 — 100 — 130 — ns 12
tAWD 65 — 65 — 80 — ns 12
tCWD 45 — 45 — 55 — ns 12
tDZC 0 — 0 — 0 — ns
tDZO 0 — 0 — 0 — ns
tOEA — 20 — 20 — 25 ns 7
tOEZ 0 10 0 10 0 20 ns 9
tOED 10 — 10 — 20 — ns
tOEH 10 — 10 — 20 — ns
tROH 15 — 15 — 15 — ns
tCSR 10 — 10 — 10 — ns
tCHR 10 — 10 — 10 — ns
tRPC 0 — 0 — 0 — ns
tREF — 8 — 8 — 8 ms
tWSR 0 — 0 — 0 — ns
tRWH 15 — 15 — 15 — ns
Write Per Bit Mask Data Set-up Time
tMS
Write Per Bit Mask Data Hold Time
tMH
DT High Set-up Time
tTHS
DT High Hold Time
tTHH
DT Low Set-up Time
tTLS
DT Low Hold Time
tTLH
DT Low Hold Time referenced to RAS
(Real Time Read Transfer)
tRTH
DT Low Hold Time referenced to Column Address
(Real Time Read Transfer)
tATH
DT Low Hold Time referenced to CAS
(Real Time Read Transfer)
tCTH
SE Set-up Time referenced to RAS
tESR
SE Hold Time referenced to RAS
tREH
DT to RAS Precharge Time
tTRP
DT Precharge Time
tTP
RAS to First SC Delay Time (Read Transfer)
tRSD
Column Address to First SC Delay Time (Read Transfer) tASD
CAS to First SC Delay Time (Read Transfer)
tCSD
Last SC to DT Lead Time (Real Time Read Transfer) tTSL
0 — 0 — 0 — ns
15 — 15 — 15 — ns
0 — 0 — 0 — ns
15 — 15 — 15 — ns
0 — 0 — 0 — ns
15 10k 15 10k 15 10k ns
60 10k 65 10k 80 10k ns
25 — 30 — 30 — ns
20 — 25 — 25 — ns
0 — 0 — 0 — ns
15 — 15 — 15 — ns
60 — 60 — 70 — ns
20 — 20 — 30 — ns
70 — 80 — 100 — ns
45 — 45 — 50 — ns
20 — 25 — 25 — ns
5 — 5 — 5 — ns
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