參數(shù)資料
型號: MC-454CB646
廠商: NEC Corp.
英文描述: 4 M-Word By 64-Bit Synchronous Dynamic RAM Module(同步動態(tài)RAM 模塊)
中文描述: 4支M - 64個字位同步動態(tài)隨機(jī)存儲器模塊(同步動態(tài)內(nèi)存模塊)
文件頁數(shù): 5/16頁
文件大?。?/td> 136K
代理商: MC-454CB646
5
MC-454CB646
Electrical Specifications
All voltages are referenced to V
SS
(GND).
After power up, wait more than 100
μ
s and then, execute power on sequence and auto refresh before proper device
operation is achieved.
Absolute Maximum Ratings
Parameter
Symbol
Condition
Rating
Unit
Voltage on power supply pin relative to GND
V
CC
–0.5 to +4.6
V
Voltage on input pin relative to GND
V
T
–0.5 to +4.6
V
Short circuit output current
I
O
50
mA
Power dissipation
P
D
4
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, BA0 (A13), BA1 (A12), /RAS,
/CAS, /WE
22
40
pF
C
I2
CLK0, CLK2
24
40
C
I3
CKE0
22
40
C
I4
/CS0, /CS2
12
20
C
I5
DQMB0 - DQMB7
7
13
Data input / output capacitance
C
I/O
DQ0 - DQ63
7
13
pF
相關(guān)PDF資料
PDF描述
MC-454CB64S 4M-Word By 64-BIT Dynamic RAM Module(動態(tài)RAM模塊)
MC-4564DC726 64M-Word By 72-BIT Dynamic RAM Module(動態(tài)RAM模塊)
MC-4564EC726 64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE
MC-4564EC727 64M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE
MC-4564EC726EFB-A10 64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE
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