參數(shù)資料
型號(hào): MSM51V4256A-80
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: 262,144-Word ⅴ 4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
中文描述: 262,144字ⅴ4位動(dòng)態(tài)隨機(jī)存儲(chǔ)器:快速頁(yè)面模式型
文件頁(yè)數(shù): 7/17頁(yè)
文件大?。?/td> 253K
代理商: MSM51V4256A-80
7/17
Semiconductor
MSM51V4256A
AC Characteristics (2/2)
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 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
)
Parameter
(V
CC
= 3.3 V ±0.3 V, Ta = 0°C to 70°C) Note 1, 2, 3
t
RCS
t
RCH
t
RRH
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
Symbol
Unit Note
MSM51V4256
A-70
Min.
0
0
0
0
15
55
15
MSM51V4256
A-80
Min.
0
0
0
0
15
60
15
MSM51V4256
A-10
Min.
0
0
0
0
20
75
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Max.
8
8
9
10
10
9
9
9
9
20
25
25
0
15
55
20
55
70
100
75
10
10
30
20
25
25
0
15
60
20
55
75
110
80
10
10
30
Max.
25
30
30
0
20
75
25
65
90
135
90
10
10
30
Max.
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