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EM48AM1684VTF 参数 Datasheet PDF下载

EM48AM1684VTF图片预览
型号: EM48AM1684VTF
PDF下载: 下载PDF文件 查看货源
内容描述: 256MB ( 4M 】 4Bank 】 16 )同步DRAM [256Mb (4M×4Bank×16) Synchronous DRAM]
分类和应用: 动态存储器
文件页数/大小: 19 页 / 218 K
品牌: EOREX [ EOREX CORPORATION ]
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eorex
AC Operating Test Conditions
Item
Output Reference Level
Output Load
Input Signal Level
Transition Time of Input Signals
Input Reference Level
EM48AM1684VTF
(V
DD
=3.3V±0.3V, T
A
=0°C ~70°C/T
A
=-25°C ~ +85°C for extended grade)
Conditions
1.4V/1.4V
See diagram as below
2.4V/0.4V
2ns
1.4V
AC Operating Test Characteristics
(V
DD
=3.3V±0.3V, T
A
=0°C ~70°C/T
A
=-25°C ~ +85°C for extended grade)
Symbol
t
CK
t
AC
t
CH
t
CL
t
OH
t
HZ
t
LZ
t
IH
t
IS
Parameter
Clock Cycle Time
Access Time form CLK
CLK High Level Width
CLK Low Level Width
Data-out Hold Time
Data-out High Impedance
(Note 5)
Time
Input Hold Time
Input Setup Time
CL=3
CL=2
CL=3
CL=2
0
1
1.5
0
1
1.5
0
1
1.5
3
6
3
7
3
7
CL=3
CL=2
CL=3
CL=2
2.5
2.5
2.5
-6
Min.
6
10
5.4
6
2.5
2.5
3
Max.
Min.
7
10
5.4
6
2.5
2.5
3
-7
Max.
-7.5
Min. Max.
7.5
10
5.4
6
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
Data-out Low Impedance Time
* All voltages referenced to V
SS
.
Note 5:
t
HZ
defines the time at which the output achieve the open circuit condition and is not referenced to
output voltage levels.
Nov. 2009
9/19
www.eorex.com