¡ Semiconductor
AC Characteristics (2/2)
MD51V65805
(V
CC
= 3.3 V ±0.3 V, Ta = 0°C to 70°C) Note 1, 2, 3
Parameter
Read Command Set-up Time
Read Command Hold Time
Read Command Hold Time referenced to
RAS
Write Command Set-up Time
Write Command Hold Time
Write Command Pulse Width
WE
Pulse Width (DQ Disable)
OE
Command Hold Time
OE
Precharge Time
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
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)
WE
to
RAS
Precharge Time (CAS before
RAS)
WE
Hold Time from
RAS
(CAS before
RAS)
Symbol
MD51V65805
-50
Min.
Max.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0
0
0
0
7
7
7
7
7
7
7
7
0
7
13
30
42
67
47
5
5
10
10
10
MD51V65805
-60
Min.
0
0
0
0
10
10
10
10
10
10
10
10
0
10
15
34
49
79
54
5
5
10
10
10
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
ns
ns
11
11
10
10
10
10
9
9
10
t
RCS
t
RCH
t
RRH
t
WCS
t
WCH
t
WP
t
WPE
t
OEH
t
OEP
t
OCH
t
RWL
t
CWL
t
DS
t
DH
t
OED
t
CWD
t
AWD
t
RWD
t
CPWD
t
RPC
t
CSR
t
CHR
t
WRP
t
WRH
7/15
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