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參數資料
| 型號： | WCMA4016U1X |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 256K x 16 Static RAM |
| 中文描述： | 256K × 16靜態RAM |
| 文件頁數： | 3/9頁 |
| 文件大?。?/td> | 164K |
| 代理商： | WCMA4016U1X |
WCMA4016U1X
3
.
Capacitance
[3]
Parameter
Description
Test Conditions
T
A
= 25°C, f = 1 MHz,
V
CC
= V
CC(typ.)
Max.
6
8
Unit
pF
pF
C
IN
C
OUT
Input Capacitance
Output Capacitance
Thermal Resistance
Description
Test Conditions
Symbol
Θ
JA
BGA
55
Units
°
C/W
Thermal Resistance
(Junction to Ambient)
[3]
Thermal Resistance
(Junction to Case)
[3]
Still Air, soldered on a 4.25 x 1.125 inch, 4-layer printed
circuit board
Θ
JC
16
°
C/W
AC Test Loads and Waveforms
V
CC
Typ
V
CC
OUTPUT
R2
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
OUTPUT
V
TH
Equivalent to:
THé VENIN EQUIVALENT
R
TH
ALL INPUT PULSES
R1
V
CC
OUTPUT
5 pF
INCLUDING
JIG AND
SCOPE
(b)
R1
R2
(a)
Rise TIme: 1 V/ns
Fall Time: 1 V/ns
(c)
Parameters
R1
R2
R
TH
V
TH
3.0V
1103
1554
645
1.75V
Unit
V
Data Retention Characteristics
(Over the Operating Range)
Parameter
V
DR
I
CCDR
Description
Conditions
Min.
1.0
Typ.
[2]
Max.
3.6
10
Unit
V
μ
A
V
CC
for Data Retention
Data Retention Current
V
CC
= 1.0V
CE
1
> V
CC
– 0.3V, CE
2
< 0.2V,
V
IN
> V
CC
– 0.3V or V
IN
< 0.3V
L
1
LL
t
CDR[3]
Chip Deselect to Data
Retention Time
Operation Recovery Time
0
ns
t
R[4]
Note:
3.
4.
70
ns
Tested initially and after any design or process changes that may affect these parameters.
Full Device AC operation requires linear V
CC
ramp from V
DR
to V
CC(min.)
> 10
μ
s or stable at V
CC(min.)
>10
μ
s.
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