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参数资料
| 型号： | MT4C4256 |
| 厂商： | Micron Technology, Inc. |
| 英文描述： | 256K x 4 DRAM Standard Or Low Power, Extended Refresh(标准或低功率，扩展刷新，256K x 4动态RAM) |
| 中文描述： | 256K × 4的DRAM标准或低功耗，延长刷新（标准或低功率，扩展刷新，256K × 4动态内存） |
| 文件页数： | 5/15页 |
| 文件大小： | 240K |
| 代理商： | MT4C4256 |
MT4C4256(L)
REV. 4/94
Micron Semiconductor, Inc., reserves the right to change products or specifications without notice.
1994, Micron Semiconductor, Inc.
5
MT4C4256(L)
256K x 4 DRAM
OBSOLETE
CAPACITANCE
PARAMETER
Input Capacitance: A0-A8
Input Capacitance:
/
R
A
/
S,
/
C
A
/
S,
W
/
E,
/
O
/
E
Input/Output Capacitance: DQ
SYMBOL
C
I
1
C
I
2
C
IO
MIN
MAX
5
7
7
UNITS
pF
pF
pF
NOTES
2
2
2
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(Notes: 6, 7, 8, 9, 10, 11, 12, 13, 23) (V
CC
= +5V
±
10%)
AC CHARACTERISTICS
PARAMETER
Random READ or WRITE cycle time
READ WRITE cycle time
FAST-PAGE-MODE
READ or WRITE cycle time
FAST-PAGE-MODE
READ-WRITE cycle time
Access time from
/
R
A
/
S
Access time from
/
C
A
/
S
Output Enable
Access time from column-address
Access time from
/
C
A
/
S precharge
/
R
A
/
S pulse width
/
R
A
/
S pulse width
(FAST PAGE MODE)
/
R
A
/
S hold time
/
R
A
/
S precharge time
/
C
A
/
S pulse width
/
C
A
/
S hold time
/
C
A
/
S precharge time
/
C
A
/
S precharge time
(FAST PAGE MODE)
/
R
A
/
S to
/
C
A
/
S delay time
/
C
A
/
S to
/
R
A
/
S precharge time
Row-address setup time
Row-address hold time
/
R
A
/
S to column-
address delay time
Column-address setup time
Column-address hold time
Column-address hold time
(referenced to
/
R
A
/
S)
Column-address to
/
R
A
/
S lead time
Read command setup time
Read command hold time
(referenced to
/
C
A
/
S)
Read command hold time
(referenced to
/
R
A
/
S)
/
C
A
/
S to output in Low-Z
-6
-7
-8
SYM
t
RC
t
RWC
t
PC
MIN
110
165
35
MAX
MIN
130
185
40
MAX
MIN
150
205
45
MAX
UNITS
ns
ns
ns
NOTES
t
PRWC
90
95
100
ns
t
RAC
t
CAC
t
OE
t
AA
t
CPA
t
RAS
t
RASP
t
RSH
t
RP
t
CAS
t
CSH
t
CPN
t
CP
t
RCD
t
CRP
t
ASR
t
RAH
t
RAD
60
20
20
30
35
70
20
20
35
40
80
20
20
40
45
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
14
15
60
60
20
40
20
60
10
10
20
5
0
10
15
100,000
100,000
70
70
20
50
20
70
10
10
20
5
0
10
15
100,000
100,000
80
80
20
60
20
80
10
10
20
5
0
10
15
100,000
100,000
100,000
100,000
100,000
16
40
50
60
17
30
35
40
18
t
ASC
t
CAH
t
AR
0
15
45
0
0
ns
ns
ns
15
55
15
60
t
RAL
30
35
40
ns
t
RCS
t
RCH
0
0
0
0
0
0
ns
ns
19
t
RRH
0
0
0
ns
19
t
CLZ
0
0
0
ns
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MT4C4256-10 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:256K X 4RAM(FAST PAGE MODE) |
| MT4C4256-12 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:256K X 4RAM(FAST PAGE MODE) |
| MT4C425628 | 制造商:MICRON 功能描述:* |
| MT4C4256-6 | 制造商:MAJOR 功能描述: |
| MT4C4256-8 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:256K X 4RAM(FAST PAGE MODE) |
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