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參數資料
型號: WCMA2008U1B-FF70
廠商: Electronic Theatre Controls, Inc.
英文描述: 256K x 8 Static RAM
中文描述: 256K × 8靜態RAM
文件頁數: 4/11頁
文件大小: 144K
代理商: WCMA2008U1B-FF70
WCMA2008U1B
4
AC Test Loads and Waveforms
R1
Parameters
R1
R2
R
TH
V
TH
3.3V
1105
1550
645
1.75
Unit
Ohms
Ohms
Ohms
Volts
Data Retention Characteristics
(Over the Operating Range)
Parameter
V
DR
Description
Conditions
Min.
1.5
Typ.
[2]
Max.
V
ccmax
Unit
V
CC
for Data Retention
V
I
CCDR
Data Retention Current
V
CC
= 1.5V
CE
1
> V
CC
– 0.2V or CE
2
< 0.2V
V
IN
> V
CC
0.2V or V
IN
< 0.2V
1
6
μ
A
t
CDR[3]
Chip Deselect to Data
Retention Time
Operation Recovery
Time
0
ns
t
R[4]
t
RC
ns
Data Retention Waveform
Note:
4.
Full Device AC operation requires linear V
CC
ramp from V
DR
to V
CC(min.)
> 100
μ
s or stable at V
CC(min.)
>
100
μ
s.
V
CC
Typ
V
CC
OUTPUT
R2
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
OUTPUT
V
TH
Equivalent to:
THé VENINEQUIVALENT
ALL INPUT PULSES
R
TH
Fall time: 1 V/ns
Rise Time: 1 V/ns
V
CC(min)
t
R
V
CC(min)
t
CDR
V
DR
> 1.5 V
DATA RETENTION MODE
CE
1
or
V
CC
CE
2
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相關代理商/技術參數
參數描述
WCMA2008U1X 制造商:未知廠家 制造商全稱:未知廠家 功能描述:256K x 8 Static RAM
WCMA2008U1X-FF70 制造商:Cypress Semiconductor 功能描述:
WCMA2008U1X-FF70T 制造商:Rochester Electronics LLC 功能描述:- Bulk
WCMA2008UIX-FF70 制造商:Cypress Semiconductor 功能描述:
WCMA2016U4B 制造商:WEIDA 制造商全稱:WEIDA 功能描述:128K x 16 Static RAM