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K4E640812D-TL45 PDF预览

K4E640812D-TL45

更新时间: 2023-03-15 00:00:00
品牌 Logo 应用领域
三星 - SAMSUNG 动态存储器光电二极管
页数 文件大小 规格书
21页 416K
描述
EDO DRAM, 8MX8, 45ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, TSOP2-32

K4E640812D-TL45 数据手册

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K4E660812D,K4E640812D  
CMOS DRAM  
CAPACITANCE (TA=25°C, VCC=3.3V, f=1MHz)  
Parameter  
Input capacitance [A0 ~ A12]  
Symbol  
CIN1  
Min  
Max  
Units  
pF  
-
-
-
5
7
7
Input capacitance [RAS, CAS, W, OE]  
Output capacitance [DQ0 - DQ7]  
CIN2  
pF  
CDQ  
pF  
AC CHARACTERISTICS (0°C£TA£70°C, See note 2)  
Test condition : VCC=3.3V±0.3V, Vih/Vil=2.2/0.7V, Voh/Vol=2.0/0.8V  
-45  
-50  
-60  
Parameter  
Symbol  
Units  
Note  
Min  
74  
Max  
Min  
Max  
Min  
104  
138  
Max  
Random read or write cycle time  
Read-modify-write cycle time  
Access time from RAS  
84  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
tRC  
101  
113  
tRWC  
tRAC  
tCAC  
tAA  
45  
12  
23  
50  
13  
25  
60  
15  
30  
3,4,10  
3,4,5  
3,10  
3
Access time from CAS  
Access time from column address  
CAS to output in Low-Z  
3
3
3
3
3
3
tCLZ  
tCEZ  
tOLZ  
tT  
Output buffer turn-off delay from CAS  
OE to output in Low-Z  
13  
50  
13  
50  
13  
50  
6,13  
3
3
3
3
Transition time (rise and fall)  
RAS precharge time  
1
1
1
2
25  
45  
8
30  
50  
8
40  
60  
10  
40  
10  
14  
12  
5
tRP  
RAS pulse width  
10K  
10K  
10K  
tRAS  
tRSH  
tCSH  
tCAS  
tRCD  
tRAD  
tCRP  
tASR  
tRAH  
tASC  
tCAH  
tRAL  
tRCS  
tRCH  
tRRH  
tWCH  
tWP  
RAS hold time  
CAS hold time  
35  
7
38  
8
CAS pulse width  
5K  
33  
22  
10K  
37  
10K  
45  
14  
4
RAS to CAS delay time  
11  
9
11  
9
RAS to column address delay time  
CAS to RAS precharge time  
Row address set-up time  
Row address hold time  
25  
30  
10  
5
5
0
0
0
7
7
10  
0
Column address set-up time  
Column address hold time  
Column address to RAS lead time  
Read command set-up time  
Read command hold time referenced to CAS  
Read command hold time referenced to RAS  
Write command hold time  
Write command pulse width  
Write command to RAS lead time  
Write command to CAS lead time  
Data set-up time  
0
0
7
7
10  
30  
0
23  
0
25  
0
0
0
0
8
8
0
0
0
7
7
10  
10  
10  
10  
0
6
7
8
8
tRWL  
tCWL  
tDS  
7
7
0
0
9

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