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AC Characteristics (2/2)
MSM518200
(V
CC
= 5 V ±10%, Ta = 0°C to 70°C) Note 1, 2, 3, 11, 12
Parameter
Write Command Set-up Time
Write Command Hold Time
Write Command Hold Time from
RAS
Write Command Pulse Width
OE
Command Hold Time
Write Command to
RAS
Lead Time
Write Command to
CAS
Lead Time
Data-in Set-up Time
Data-in Hold Time
Data-in Hold Time from
RAS
OE
to Data-in Delay Time
CAS
to
WE
Delay Time
Column Address to
WE
Delay Time
RAS
to
WE
Delay Time
CAS
Precharge
WE
Delay Time
CAS
Active Delay Time from
RAS
Precharge
RAS
to
CAS
Set-up Time (CAS before
RAS)
RAS
to
CAS
Hold Time (CAS before
RAS)
MSM518200 MSM518200 MSM518200
-60
-70
-80
Unit Note
Symbol
Min.
t
WCS
t
WCH
t
WCR
t
WP
t
OEH
t
RWL
t
CWL
t
DS
t
DH
t
DHR
t
OED
t
CWD
t
AWD
t
RWD
t
CPWD
t
RPC
t
CSR
t
CHR
0
10
45
10
15
15
15
0
15
50
15
40
55
85
60
10
10
20
10
10
10
20
Max.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Min.
0
15
55
10
20
20
20
0
15
55
20
50
65
100
70
10
10
20
10
10
10
20
Max.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Min.
0
15
60
10
20
20
20
0
15
60
20
50
70
110
75
10
10
20
10
10
10
20
Max.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
9
9
9
9, 14
13
13
14
15
10, 13
10, 13
9, 13
13
WE
to
RAS
Precharge Time (CAS before
RAS)
t
WRP
WE
Hold Time from
RAS
(CAS before
RAS)
t
WRH
t
WTS
RAS
to
WE
Set-up Time (Test Mode)
RAS
to
WE
Hold Time (Test Mode)
t
WTH
7/17
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