參數(shù)資料
型號(hào)： UPD44324184F5-E50-EQ2
廠商： NEC Corp.
英文描述： 36M-BIT DDRII SRAM 4-WORD BURST OPERAT
中文描述： 36M條位SRAM的4條DDRII詞爆生產(chǎn)營(yíng)運(yùn)
文件頁(yè)數(shù)： 13/32頁(yè)
文件大?。?/td> 315K
代理商： UPD44324184F5-E50-EQ2
13
Preliminary Data Sheet
M16781EJ1V0DS
μ
PD44324084, 44324094, 44324184, 44324364
Electrical Specifications
Absolute Maximum Ratings
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Supply voltage
V
DD
–0.5
+2.5
V
Output supply voltage
V
DD
Q
–0.5
V
DD
V
Input voltage
V
IN
–0.5
V
DD
+ 0.5 (2.5 V MAX.)
V
Input / Output voltage
V
I/O
–0.5
V
DD
Q
+ 0.5 (2.5 V MAX.)
V
Operating ambient temperature
T
A
0
70
°C
Storage temperature
T
stg
–55
+125
°C
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.
Recommended DC Operating Conditions (T
A
= 0 to 70
°
C)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Note
Supply voltage
V
DD
1.7
1.9
V
Output supply voltage
V
DD
Q
1.4
V
DD
V
1
High level input voltage
V
IH (DC)
V
REF
+ 0.1
V
DD
Q
+ 0.3
V
1, 2
Low level input voltage
V
IL (DC)
–0.3
V
REF
– 0.1
V
1, 2
Clock input voltage
V
IN
–0.3
V
DD
Q
+ 0.3
V
1, 2
Reference voltage
V
REF
0.68
0.95
V
Notes 1.
During normal operation, V
DD
Q must not exceed V
DD
.
2.
Power-up: V
IH
≤
V
DD
Q + 0.3 V and V
DD
≤
1.7 V and V
DD
Q
≤
1.4 V for t
≤
200 ms
Recommended AC Operating Conditions (T
A
= 0 to 70
°
C)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Note
High level input voltage
V
IH (AC)
V
REF
+ 0.2
–
V
1
Low level input voltage
V
IL (AC)
–
V
REF
– 0.2
V
1
Note 1.
Overshoot: V
IH (AC)
≤
V
DD
+ 0.7 V for t
≤
TKHKH/2
Undershoot: V
IL (AC)
≥
– 0.5 V for t
≤
TKHKH/2
Control input signals may not have pulse widths less than TKHKL (MIN.) or operate at cycle rates less than
TKHKH (MIN.).
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