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参数资料
| 型号： | MSM514256CL |
| 厂商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 256K×4 Dynamic RAM(256K×4动态RAM) |
| 中文描述： | 256K × 4动态RAM（256K × 4动态内存） |
| 文件页数： | 6/17页 |
| 文件大小： | 257K |
| 代理商： | MSM514256CL |
6/17
Semiconductor
MSM514256C/CL
AC Characteristics (1/2)
Random Read or Write Cycle Time
Read Modify Write Cycle Time
Fast Page Mode Cycle Time
Fast Page Mode Read Modify Write
Cycle Time
Access Time from
RAS
Access Time from
CAS
Access Time from Column Address
Access Time from
CAS
Precharge
Access Time from
OE
Output Low Impedance Time from
CAS
CAS
to Data Output Buffer Turn-off Delay Time
Transition Time
Refresh Period
Refresh Period (L-version)
RAS
Precharge Time
RAS
Pulse Width
RAS
Pulse Width (Fast Page Mode)
RAS
Hold Time
RAS
Hold Time referenced to
OE
CAS
Precharge Time (Fast Page Mode)
CAS
Pulse Width
CAS
Hold Time
CAS
to
RAS
Precharge Time
RAS
Hold Time from
CAS
Precharge
RAS
to
CAS
Delay Time
RAS
to Column Address Delay Time
Row Address Set-up Time
Row Address Hold Time
Column Address Set-up Time
Column Address Hold Time
Column Address Hold Time from
RAS
Column Address to
RAS
Lead Time
OE
to Data Output Buffer Turn-off Delay Time
t
RC
t
RWC
t
PC
t
PRWC
t
RAC
t
CAC
t
AA
t
CPA
t
OEA
t
CLZ
t
OFF
t
OEZ
t
T
t
REF
t
REF
t
RP
t
RAS
t
RASP
t
RSH
t
ROH
t
CP
t
CAS
t
CSH
t
CRP
t
RHCP
t
RCD
t
RAD
t
ASR
t
RAH
t
ASC
t
CAH
t
AR
t
RAL
Parameter
MSM514256
C/CL-45
MSM514256
C/CL-50
MSM514256
C/CL-60
MSM514256
C/CL-70
(V
CC
= 5 V ±10%, Ta = 0°C to 70°C) Note 1, 2, 3, 4, 5
Symbol
Min.
90
140
34
75
—
—
—
—
—
0
0
0
3
—
—
35
45
45
14
10
10
14
45
5
28
17
12
0
7
0
12
35
24
Max.
—
—
—
—
45
14
24
28
14
—
10
10
50
8
64
—
10,000
100,000
—
—
—
10,000
—
—
—
31
21
—
—
—
—
—
—
Min.
100
150
36
77
—
—
—
—
—
0
0
0
3
—
—
40
50
50
14
10
10
14
50
5
30
18
13
0
8
0
13
40
26
Max.
—
—
—
—
50
14
26
30
14
—
10
10
50
8
64
—
10,000
100,000
—
—
—
10,000
—
—
—
36
24
—
—
—
—
—
—
Min.
120
170
40
90
—
—
—
—
—
0
0
0
3
—
—
50
60
60
15
10
10
15
60
5
35
20
15
0
10
0
15
50
30
Max.
—
—
—
—
60
15
30
35
15
—
10
10
50
8
64
—
10,000
100,000
—
—
—
10,000
—
—
—
45
30
—
—
—
—
—
—
Min.
130
185
45
95
—
—
—
—
—
0
0
0
3
—
—
50
70
70
20
10
10
20
70
5
40
20
15
0
10
0
15
55
35
Max.
—
—
—
—
70
20
35
40
20
—
10
10
50
8
64
—
10,000
100,000
—
—
—
10,000
—
—
—
50
35
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note
6, 7, 8
6, 7
6, 8
6
6
6
9
9
3
7
8
相关PDF资料 |
PDF描述 |
|---|---|
| MSM514262-10 | 262,144-Word x 4-Bit Multiport DRAM |
| MSM514262-80 | 262,144-Word x 4-Bit Multiport DRAM |
| MSM514262 | 262,144-Word x 4-Bit Multiport DRAM |
| MSM514262-10ZS | 262,144-Word x 4-Bit Multiport DRAM |
| MSM514262-70JS | 262,144-Word x 4-Bit Multiport DRAM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MSM514260C | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:262,144-Word x 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE |
| MSM514260CSL | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:262,144-Word x 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE |
| MSM514260E | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:262,144-Word x 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE |
| MSM514260E-60 | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:262,144-Word x 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE |
| MSM514260E-60J3-7 | 制造商:ROHM Semiconductor 功能描述: |
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