MSM6389 Просмотр технического описания (PDF) - Oki Electric Industry
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MSM6389 Datasheet PDF : 12 Pages
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¡ Semiconductor
MSM6389C
AC Characteristics
Parameter
Refresh Cycle
Read/Write Cycle Time
Access Time
Output Turn-off Delay Time
Input Signal Rise/Fall Time
RWCK Precharge Time
RWCK Pulse Width
SAS Cycle Time
SAS Pulse Width
SAS Precharge Time
Address Setup Time
Address Hold Time
TAS Setup Time
TAS to RWCK Setup Time
TAS Pulse Width
Read Command Setup Time
Read Command Hold Time
Write Command Setup Time
Write Command Hold Time
Write Command Pulse Width
WE to RWCK Lead Tme
Data Setup Time
Data Hold Time
RWCK to WE Delay Time
RFSH Setup Time
RFSH Precharge Time
RFSH Pulse Width
RFSH RWCK Precharge Time
Fast Mode Cycle Time
Fast RWCK Mode Access Time
Fast RWCK Precharge Time
Fast Mode RWCK Pulse Width
Fast Mode Setup Time
Fast Mode Hold Time
Fast Mode Width
Slow Mode Setup Time
Slow Mode Hold Time
Symbol
tREF
tRWC
tACC
tOFF
tT
tRWP
tRW
tSSC
tSAS
tSAP
tAS
tAH
tATS
tTRS
tTAS
tRRS
tRRH
tWRS
tWRH
tWP
tRWL
tDS
tDH
tRWD
tRFS
tRFP
tRF
tRRP
tFC
tFAC
tFCP
tFR
tFS
tFH
tFCC
tSS
tSH
(VCC = 3.5 V to 5.5 V, Ta = 0 to 70°C)
MSM6389C-SELF MSM6389C-AUTO
Unit
Min. Max. Min. Max.
—
—
—
100 ms
4,000
—
2,000
—
ns
—
3,000
—
1,500 ns
0
50
0
50
ns
3
50
3
50
ns
1,000
—
500
—
ns
3,000 10,000 1,500 10,000 ns
100
—
100
—
ns
50
—
50
—
ns
50
—
50
—
ns
0
—
0
—
ns
50
—
50
—
ns
50
—
50
—
ns
50
—
50
—
ns
50
—
50
—
ns
0
—
0
—
ns
50
—
50
—
ns
0
—
0
—
ns
50
—
50
—
ns
50
—
50
—
ns
50
—
50
—
ns
0
—
0
—
ns
50
—
50
—
ns
100
—
100
—
ns
—
—
500
—
ns
—
—
500
—
ns
—
—
1,500 10,000 ns
—
—
500
—
ns
400
—
400
—
ns
—
300
—
300
ns
100
—
100
—
ns
300
—
300
—
ns
0
—
0
—
ns
50
—
50
—
ns
4,000 100,000 2,000 100,000 ns
0
—
0
—
ns
50
—
50
—
ns
Note: Switching to the fast mode should be made satisfying the timings of tFS and tSS at the "L" level
of RWCK.
5/11
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