¡ Semiconductor
MSM63V89C
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 Time
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
(VCC = 2.7 V to 3.6 V, Ta = 0 to 70°C)
MSM63V89C-SELF MSM63V89C-AUTO
Symbol
Unit
Min. Max. Min. Max.
tREF
—
—
—
100 ms
tRWC
4,000
—
2,000
—
ns
tACC
—
3,000
—
1,500 ns
tOFF
0
50
0
50
ns
tT
3
50
3
50
ns
tRWP
1,000
—
500
—
ns
tRW
3,000 10,000 1,500 10,000 ns
tSSC
100
—
100
—
ns
tSAS
50
—
50
—
ns
tSAP
50
—
50
—
ns
tAS
0
—
0
—
ns
tAH
50
—
50
—
ns
tATS
50
—
50
—
ns
tTRS
50
—
50
—
ns
tTAS
50
—
50
—
ns
tRRS
0
—
0
—
ns
tRRH
50
—
50
—
ns
tWRS
0
—
0
—
ns
tWRH
50
—
50
—
ns
tWP
50
—
50
—
ns
tRWL
50
—
50
—
ns
tDS
0
—
0
—
ns
tDH
50
—
50
—
ns
tRWD
100
—
100
—
ns
tRFS
—
—
500
—
ns
tRFP
—
—
500
—
ns
tRF
—
—
1,500 10,000 ns
tRRP
—
—
500
—
ns
tFC
400
—
400
—
ns
tFAC
—
300
—
300
ns
tFCP
100
—
100
—
ns
tFR
300
—
300
—
ns
tFS
0
—
0
—
ns
tFH
50
—
50
—
ns
tFCC
4,000 100,000 2,000 100,000 ns
tSS
0
—
0
—
ns
tSH
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.
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