¡ Semiconductor
AC Characteristics (3/3)
Parameter
DT
to First SC Delay Time (Read Transfer)
Last SC to
RAS
Set-up Time (Serial Input)
RAS
to First SC Delay Time (Serial Input)
RAS
to Serial Input Delay Time
Serial Output Buffer Turn-off Delay from
RAS
(Pseudo Write Transfer)
SC Cycle Time
SC Pulse Width (SC High Time)
SC Precharge Time (SC Low Time)
Access Time from SC
Serial Output Hold Time from SC
Serial Input Set-up Time
Serial Input Hold Time
Access Time from
SE
SE
Pulse Width
SE
Precharge Time
Serial Output Buffer Turn-off Delay from
SE
Serial Input to
SE
Delay Time
Serial Input to First SC Delay Time
Serial Write Enable Set-up Time
Serial Write Enable Hold Time
Serial Write Disable Set-up Time
Serial Write Disable Hold Time
Symbol
t
TSD
t
SRS
t
SRD
t
SDD
t
SDZ
t
SCC
t
SC
t
SCP
t
SCA
t
SOH
t
SDS
t
SDH
t
SEA
t
SE
t
SEP
t
SEZ
t
SZE
t
SZS
t
SWS
t
SWH
t
SWIS
t
SWIH
MSM518121A
(V
CC
= 5 V ±10%, Ta = 0°C to 70°C) Note 4, 5, 6
-70
15
25
20
40
10
30
10
10
—
5
0
15
—
25
25
0
0
0
5
15
5
15
—
—
—
—
40
—
—
—
25
—
—
—
25
—
—
20
—
—
—
—
—
—
15
25
20
40
10
30
10
10
—
5
0
15
—
25
25
0
0
0
5
15
5
15
-80
—
—
—
—
40
—
—
—
25
—
—
—
25
—
—
20
—
—
—
—
—
—
15
30
25
50
10
30
10
10
—
5
0
15
—
25
25
0
0
0
5
15
5
15
-10
—
—
—
—
50
—
—
—
25
—
—
—
25
—
—
20
—
—
—
—
—
—
Min. Max. Min. Max. Min. Max.
Unit Note
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
9
8
8
9
8/33
OKI [ OKI ELECTRONIC COMPONETS ]
