參數(shù)資料
型號(hào)： MC-428LFC72
廠商： NEC Corp.
英文描述： 3.3 V Operation 4M-Word By 64-Bit Dynamic RAM Module(工作電壓為3.3V的動(dòng)態(tài)RAM模塊)
中文描述： 3.3 V工作4分，64個(gè)字位動(dòng)態(tài)RAM模塊（工作電壓為3.3伏的動(dòng)態(tài)內(nèi)存模塊）
文件頁數(shù)： 4/28頁
文件大?。?/td> 223K
代理商： MC-428LFC72
MC-428LFC72
4
Electrical Specifications
All voltages are referenced to GND.
After power up (V
CC
≥
V
CC (MIN.)
), wait more than 100
μ
s (/RAS, /CAS inactive) and then, execute eight /CAS
before /RAS or /RAS only refresh cycles as dummy cycles to initialize internal circuit.
Absolute Maximum Ratings
Parameter
Symbol
Condition
Rating
Unit
Voltage on any pin relative to GND
V
T
–0.5 to +4.6
V
Supply voltage
V
CC
–0.5 to +4.6
V
Output current
I
O
50
mA
Power dissipation
P
D
9
W
Operating ambient temperature
T
A
0 to +70
C
Storage temperature
T
stg
–55 to +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 Operating Conditions
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Supply voltage
V
CC
3.0
3.3
3.6
V
High level input voltage
V
IH
2.0
V
CC
+ 0.3
V
Low level input voltage
V
IL
–0.3
+0.8
V
Operating ambient temperature
T
A
0
70
C
Capacitance (T
A
= 25 C, f = 1 MHz)
Parameter
Symbol
Test condition
MIN.
TYP.
MAX.
Unit
Input capacitance
C
I1
A0 - A11, B0
20
pF
C
I2
/WE0, /WE2
20
C
I3
/RAS0, /RAS2
60
C
I4
/CAS0, /CAS4
20
C
I5
/OE0, /OE2
20
Data input/output capacitance
C
I/O
I/O0 - I/O71
30
pF
相關(guān)PDF資料
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