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參數(shù)資料
| 型號(hào)： | KM44C1005D |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 1M x 4Bit CMOS Quad CAS DRAM with Extended Data Out(1M x 4位CMOS四 CAS 動(dòng)態(tài)RAM(帶擴(kuò)展數(shù)據(jù)輸出)) |
| 中文描述： | 100萬(wàn)x 4位的CMOS DRAM與四中科院擴(kuò)展數(shù)據(jù)輸出（3米× 4位的CMOS四中科院動(dòng)態(tài)隨機(jī)存儲(chǔ)器（帶擴(kuò)展數(shù)據(jù)輸出）） |
| 文件頁(yè)數(shù)： | 5/21頁(yè) |
| 文件大?。?/td> | 393K |
| 代理商： | KM44C1005D |
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KM44C1005D
CMOS DRAM
CAPACITANCE
(T
A
=25
°
C, V
CC
=5V, f=1MHz)
Parameter
Symbol
Min
Max
Units
Input capacitance [A0 ~ A9]
C
IN1
-
5
pF
Input capacitance [RAS, CAS, W, OE]
C
IN2
-
7
pF
Output capacitance [DQ0 - DQ3]
C
DQ
-
7
pF
Test condition : V
CC
=5.0V
±
10%, Vih/Vil=2.4/0.8V, Voh/Vol=2.0/0.8V
Parameter
Symbol
-5
-6
7
Units
Notes
Min
Max
Min
Max
Min
Max
Random read or write cycle time
t
RC
84
104
124
ns
Read-modify-write cycle time
t
RWC
t
RAC
116
138
163
ns
Access time from RAS
50
60
70
ns
3,4,10
Access time from CAS
t
CAC
t
AA
15
15
20
ns
3,4,5,22
Access time from column address
25
30
35
ns
3,10
CAS to output in Low-Z
t
CLZ
t
CEZ
3
3
3
ns
3,22
Output buffer turn-off delay from CAS
3
13
3
13
3
18
ns
6,13,22
Transition time (rise and fall)
t
T
t
RP
2
50
2
50
2
50
ns
2
RAS precharge time
30
40
50
ns
RAS pulse width
t
RAS
t
RSH
50
10K
60
10K
70
10K
ns
RAS hold time
15
15
20
ns
18
CAS hold time
t
CSH
t
CAS
40
50
60
ns
21
CAS pulse width
8
10K
10
10K
15
10K
ns
27
RAS to CAS delay time
t
RCD
t
RAD
20
35
20
45
20
50
ns
4,20
RAS to column address delay time
15
25
15
30
15
35
ns
10
CAS to RAS precharge time
t
CRP
t
ASR
5
5
5
ns
19
Row address set-up time
0
0
0
ns
Row address hold time
t
RAH
t
ASC
10
10
10
ns
Column address set-up time
0
0
0
ns
20
Column address hold time
t
CAH
t
RAL
8
10
15
ns
20
Column address to RAS lead time
25
30
35
ns
Read command set-up time
t
RCS
t
RCH
0
0
0
ns
Read command hold time referenced to CAS
0
0
0
ns
8
Read command hold time referenced to RAS
t
RRH
t
WCH
0
0
0
ns
8
Write command hold time
10
10
15
ns
28
Write command pulse width
t
WP
10
10
15
ns
Write command to RAS lead time
t
RWL
t
CWL
15
15
15
ns
Write command to CAS lead time
8
10
15
ns
21
Data set-up time
t
DS
t
DH
0
0
0
ns
9
Data hold time
8
10
15
ns
9
AC CHARACTERISTICS
(0
°
C
≤
T
A
≤
70
°
C, See note 1,2)
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