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EM48BM0884VTA 参数 Datasheet PDF下载

EM48BM0884VTA图片预览
型号: EM48BM0884VTA
PDF下载: 下载PDF文件 查看货源
内容描述: 256MB ( 8mA的?? 4Bankà ?? 8 )同步DRAM [256Mb (8M×4Bank×8) Synchronous DRAM]
分类和应用: 动态存储器
文件页数/大小: 20 页 / 468 K
品牌: EOREX [ EOREX CORPORATION ]
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EM48BM0884VTA
AC Operating Test Conditions
(V
DD
=3.3V±0.3V)
Item
Output Reference Level
Output Load
Input Signal Level
Transition Time of Input Signals
Input Reference Level
Conditions
1.4V/1.4V
See diagram as below
2.4V/0.4V
1ns
1.4V
AC Operating Test Characteristics
(V
DD
=3.3V±0.3V)
Symbol
t
CK
t
AC
t
CH
t
CL
t
OH
t
HZ
t
LZ
t
IH
t
IS
t
DQZ
t
MRD
t
SB
t
DS
t
DH
Parameter
Clock Cycle Time
Access Time form CLK
CLK High Level Width
CLK Low Level Width
Data-out Hold Time
CL=3
CL=3
Data-out High Impedance
Data-out Low Impedance Time
Input Hold Time
Input Setup Time
DQM Data Out Disable Latency
Mode Register Set Cycle Time
Power Down Mode Entry Time
Data-in Set-up Time
Data-in Hold Time
CL=3
CL=3
-6
Min.
6
-
2.5
2.5
2.5
-
1
1
1.5
-
2
0
1.5
1
Max.
-
5.4
-
-
-
5.4
-
-
-
2
-
7
-
-
Min.
7
-
2.5
2.5
2.5
-
1
1
1.5
-
2
0
1.5
1
-7
Max.
-
5.4
-
-
-
5.4
-
-
-
2
-
7
-
-
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
CK
t
CK
ns
ns
ns
* 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.
Aug. 2011
9/20
www.eorex.com