參數(shù)資料
型號: MSM5416263
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: 262,144-Word ×16-Bit Multiport DRAM(256k字×16位多端口動態(tài)RAM)
中文描述: 262,144字× 16位多端口內(nèi)存(256k字× 16位多端口動態(tài)RAM)的
文件頁數(shù): 6/40頁
文件大小: 389K
代理商: MSM5416263
Semiconductor
MSM5416263
6/40
AC Characteristics (1/3)
Parameter
Symbol
Note
Unit
t
RC
t
RWC
t
PRWC
t
RAC
t
AA
t
CAC
t
CPA
t
OFF
t
T
t
RP
t
RAS
t
RASP
t
RSH
t
CSH
t
CAS
t
RCD
t
RAD
t
RAL
t
CRP
t
CP
Max.
Min.
140
185
Max.
Min.
120
170
Max.
Min.
110
145
-70
-60
-50
50
t
PC
t
ASR
t
RAH
t
ASC
t
CAH
t
AR
t
RCS
t
RCH
t
RRH
t
CRL
t
RCL
t
COH
t
WCS
t
WCH
t
WCR
t
WP
t
RWL
t
CWL
Access Time from Column Address
Access Time from
CAS
Access Time from
CAS
Precharge
Output Buffer Turn-off Delay
Transition Time (Rise and Fall)
Column Address Hold Time referenced to
RAS
Read Command Set-up Time
Column Address Set-up Time
Column Address Hold Time
Row Address Set-up Time
Row Address Hold Time
CAS
Pulse Width
RAS
to
CAS
Delay Time
RAS
to Column Address Delay Time
Column Address to
RAS
Lead Time
CAS
Precharge Time (Fast Page Mode)
CAS
to
RAS
Precharge Time
CAS
Hold Time
Write Command to
CAS
Lead Time
CAS
"H" to
RAS
"H" Lead Time
RAS
"H" to
CAS
"H" Lead Time
Data Output Hold after
CAS
Low
Fast Page Mode Cycle Time
Fast Page Mode Read Modify Write Cycle Time
Access Time from
RAS
RAS
Pulse Width (Fast Page Mode Only)
RAS
Hold Time
Random Read or Write Cycle Time
Read Modify Write Cycle
Read Command Hold Time
Read Command Hold Time referenced to
RAS
RAS
Precharge Time
RAS
Pulse Width
Write Command to
RAS
Lead Time
Write Command Hold Time referenced to
RAS
Write Command Pulse Width
Write Command Set-up Time
Write Command Hold Time
ns
ns
ns
ns
ns
ns
35
20
40
17
0
30
18
35
15
0
25
15
30
12
0
ns
ns
ns
35
10k
3
60
70
35
10k
3
50
60
35
10k
3
40
50
ns
ns
ns
100k
70
20
70
100k
60
15
60
100k
50
15
50
ns
ns
70
90
60
85
80
ns
ns
ns
ns
ns
ns
10k
50
35
20
20
15
35
10
10
10k
42
30
15
20
15
30
5
10
10k
35
25
12
18
13
25
5
8
14
14
ns
45
40
35
10
7
0
0
0
8
0
10
0
10
55
0
0
0
0
0
5
10
0
10
50
0
0
0
0
0
5
10
40
0
0
0
0
0
5
11
11
0
0
0
8
12
55
12
20
20
10
50
10
15
15
40
8
12
12
8, 14
8, 15
8, 15
8, 14
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
19
13
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