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參數(shù)資料
| 型號： | UPD43257BCZ-85LL |
| 廠商： | NEC Corp. |
| 英文描述： | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
| 中文描述： | 256K位CMOS靜態(tài)RAM 32K的詞8位 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 157K |
| 代理商： | UPD43257BCZ-85LL |
Data Sheet M10693EJ7V0DS00
6
μ
PD43257B
Electrical Specifications
Absolute Maximum Ratings
Parameter
Symbol
Condition
Rating
Unit
Supply voltage
V
CC
–0.5
Note
to +7.0
V
Input / Output voltage
V
T
–0.5
Note
to V
CC
+ 0.5
V
Operating ambient temperature
T
A
0 to 70
°
C
Storage temperature
T
stg
–55 to +125
°
C
Note
–3.0 V (MIN.) (Pulse width : 50 ns)
Caution
Exposing the device to stress above those listed in Absolute Maximum Rating 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 Operating Conditions
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Supply voltage
V
CC
4.5
5.0
5.5
V
High level input voltage
V
IH
2.2
V
CC
+0.5
V
Low level input voltage
V
IL
–0.3
Note
+0.8
V
Operating ambient temperature
T
A
0
70
°
C
Note
–3.0 V (MIN.) (Pulse width: 50 ns)
Capacitance (T
A
= 25
°
C, f = 1 MHz)
Parameter
Symbol
Test conditions
MIN.
TYP.
MAX.
Unit
Input capacitance
C
IN
V
IN
= 0 V
5
pF
Input / Output capacitance
C
I/O
V
I/O
= 0 V
8
pF
Remarks 1.
V
IN
: Input voltage
V
I/O
: Input / Output voltage
2.
These parameters are periodically sampled and not 100% tested.
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| UPD43257BGU-70L | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
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| UPD43257BGU-85L | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
| UPD43257BGU-85LL | 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT |
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