FEDD51V64405E-01
OKI Semiconductor
AC CHARACTERISTICS (2/2)
Parameter
MD51V64405E
(VCC = 3.3V ± 0.3V, Ta = 0 to 70°C) Note1,2,3
MD51V64405
E-50
MD51V64405
E-60
Symbol
Unit
Note
Min.
11
9
Max.
37
Min.
14
12
0
Max.
RAS to CAS Delay Time
t
45
30
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
6
RCD
RAS to Column Address Delay Time
Row Address Set-up Time
Row Address Hold Time
t
25
RAD
t
0
ASR
t
7
10
0
RAH
Column Address Set-up Time
Column Address Hold Time
Column Address to RAS Lead Time
Read Command Set-up Time
Read Command Hold Time
t
0
ASC
t
7
10
30
0
CAH
t
25
0
RAL
RCS
RCH
t
t
0
0
9
9
Read Command Hold Time
referenced to RAS
t
0
0
ns
RRH
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
t
0
7
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
10
WCS
t
10
10
10
10
10
10
10
10
0
WCH
t
7
WP
t
7
WPE
t
7
OEH
t
7
OEP
OCH
RWL
CWL
OE Command Hold Time
Write Command to RAS Lead Time
Write Command to CAS Lead Time
Data-in Set-up Time
t
t
t
7
7
7
t
0
11
11
DS
DH
Data-in Hold Time
t
7
10
15
34
49
79
54
OE to Data-in Delay Time
CAS to WE Delay Time
t
13
30
42
67
47
OED
t
10
10
10
10
CWD
Column Address to WE Delay Time
RAS to WE Delay Time
t
AWD
t
RWD
CAS Precharge WE Delay Time
t
CPWD
CAS Active Delay Time from RAS
Precharge
t
5
5
5
5
ns
ns
RPC
RAS to CAS Set-up Time
(CAS before RAS)
t
t
CSR
RAS to CAS Hold Time(CAS before RAS)
WE to RAS Hold Time(CAS before RAS)
10
10
10
10
ns
ns
CHR
t
WRP
t
10
10
ns
WE Hold Time(CAS before RAS)
WRH
7/16
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