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參數資料
| 型號： | AD484M1644VTA-8I |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Ascend Semiconductor Corporation(64Mb SDRAM) |
| 中文描述： | 登半導體公司（64MB內存） |
| 文件頁數： | 15/20頁 |
| 文件大小： | 85K |
| 代理商： | AD484M1644VTA-8I |
Preliminary
15
64Mb SDRAM
Ascend Semiconductor Corporation
Absolute Maximum Ratings
Symbol
Item
Rating
Units
V
IN
, V
OUT
Input, Output Voltage
-0.3 ~ 4.6
V
V
DD
, V
DDQ
Power Supply Voltage
-0.3 ~ 4.6
V
T
STG
Storage Temperature
-55 ~ 150
C
P
D
Power Dissipation
1
W
I
OS
Short Circuit Current
50
mA
Recommended DC Operation Conditions
( All Operating Range )
Symbol
Parameter
Min.
Units
V
DD
Power Supply Voltage
3.0
V
V
DDQ
Power Supply Voltage (for I/O Buffer)
3.0
V
V
IH
Input logic high voltage
2.0
V
V
IL
Input logic low voltage
-0.3
V
Note :
Caution Exposing the device to stress above those listed in Absolute Maximum Ratings could cause
permanent damage. The device is not meant to be operated under conditions outside the limits
described in the operational section of this specification. Exposure to Absolute Maximum
Rating conditions for extended periods may affect device reliability.
Typical
3.3
3.3
Max.
3.6
3.6
V
DD
+0.3
0.8
Note :
1. All voltage referred to V
SS
.
2. V
IH
(max) = 5.6V for pulse width
≤
3ns
3. V
IL
(min) = -2.0V for pulse width
≤
3ns
Capacitance ( Vcc =3.3V, f = 1MHz, Ta = 25 C )
Symbol
Parameter
Min.
Units
C
CLK
Clock capacitance
2.5
pF
C
I
Input capacitance for CLK, CKE, Address, /CS,
/RAS, /CAS, /WE, DQML,DQMU
2.5
pF
Max.
4.0
5.0
C
O
Input/Output capacitance
4.0
pF
6.5
Operating Range
Range
Ambient Temperature
Vcc
Commercial
0 C to +70 C
3 V ~ 3.6V
Industrial
-40 C to +85 C
3 V ~ 3.6V
Special
0 C to +85 C
3 V ~ 3.6V
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