MSM514212 データシートの表示（PDF） - Oki Electric Industry
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MSM514212 Datasheet PDF : 15 Pages
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¡ Semiconductor
MSM514212
AC Characteristics (On the Recommended Operating Conditions)
Parameter
Symbol
-28
-34
-50
Unit
Min. Max. Min. Max. Min. Max.
Write Clock Cycle Time
t WCK 28 1980 34 1980 50 1980 ns
Write Clock Pulse Width
t WCW 11 — 14 — 20 — ns
Write Clock Precharge Time
t WCP 11 — 14 — 20 — ns
Read Clock Cycle Time
t RCK 28 1980 34 1980 50 1980 ns
Read Clock Pulse Width
t RCW 11 — 14 — 20 — ns
Read Clock Precharge Time
t RCP 11 — 14 — 20 — ns
Access Time
t AC
— 28 — 34 — 40 ns
Cycle Access Time Right After Reset t ACR — 28 — 34 — 40 ns
Output Hold Time
t OH
5 — 5 — 5 — ns
Output Hold Time Right After Reset t OHR 5 — 5 — 5 — ns
Output Low Impedance Period
t LZ
5 28 5 34 5 40 ns
Output High Impedance Period
t HZ
5 28 5 34 5 40 ns
Input Data Setup Time
t DS 11 — 14 — 15 — ns
Input Data Hold Time
t DH
5 — 5 — 5 — ns
WR/RR Setup Time from WCK/RCK t RS 11 — 14 — 15 — ns
WR/RR Hold Time from WCK/RCK t RH
5 — 5 — 5 — ns
WR/RR Nonselective Time 1 from
WCK/RCK
t RN1
5
—
5
—5
— ns
WR/RR Nonselective Time 2 from
WCK/RCK
t RN2 11 — 14 — 15 — ns
WE Setup Time from WCK
t WES 11 — 14 — 15 — ns
WE Hold Time from WCK
t WEH 5
—
5
—5
— ns
WE Nonselective Time 1 from WCK t WEN1 5 — 5 — 5 — ns
WE Nonselective Time 2 from WCK t WEN2 11 — 14 — 15 — ns
RE Setup Time from RCK
t RES 11 — 14 — 15 — ns
RE Hold Time from RCK
t REH
5
—
5
—5
— ns
RE Nonselective Time 1 from RCK t REN1 5 — 5 — 5 — ns
RE Nonselective Time 2 from RCK t REN2 11 — 14 — 15 — ns
WE High Level Period
t WEW 0
—
0
—0
— ns
RE High Level Period
t REW 0
—
0
—0
— ns
WR Low Level Period (Write Reset
Period)
t RSTW 0
—
0
—0
— ns
WR Low Level Period (Read Reset
Period)
t RSTR
0
—
0
—0
— ns
Transition Time
tT
3 35 3 35 3 35 ns
5/15
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