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參數(shù)資料
| 型號(hào)： | 74C911 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 4-Digit Expandable Segment Display Controller |
| 中文描述： | 4位擴(kuò)展段顯示控制器 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 91K |
| 代理商： | 74C911 |
www.fairchildsemi.com
4
M
AC Electrical Characteristics
(Note 4)
V
CC
=
5V, t
r
=
t
f
=
20 ns, C
L
=
50 pF
Symbol
Parameter
Note 4:
AC Parameters are guaranteed by DC correlated testing.
Note 5:
Capacitance guaranteed by periodic testing.
Switching Time Waveforms
Write Data Waveforms
3-STATE Waveforms
Conditions
Min
Typ
Max
Units
t
CW
Chip Enable to Write Enable Set-Up Time
T
J
=
25
°
C
T
J
=
125
°
C
T
J
=
25
°
C
T
J
=
125
°
C
T
J
=
25
°
C
T
J
=
125
°
C
T
J
=
25
°
C
T
J
=
125
°
C
T
J
=
25
°
C
T
J
=
125
°
C
T
J
=
25
°
C
T
J
=
125
°
C
T
J
=
25
°
C
T
J
=
125
°
C
R
L
=
10k, C
L
=
10 pF
T
J
=
25
°
C
T
J
=
125
°
C
R
L
=
10k, C
L
=
10 pF
T
J
=
25
°
C
T
J
=
125
°
C
T
J
=
25
°
C
T
J
=
125
°
C
T
J
=
25
°
C
T
J
=
125
°
C
T
J
=
25
°
C
T
J
=
125
°
C
(Note 5)
(Note 5)
35
15
ns
50
35
50
20
15
20
ns
ns
ns
t
AW
Address to Write Enable Set-Up Time
t
WW
Write Enable Width
400
450
390
225
250
225
ns
ns
ns
t
DW
Data to Write Enable Set-Up Time
430
0
0
250
10
15
10
15
30
ns
ns
ns
t
WD
Write Enable to Data Hold Time
t
WA
Write Enable to Address Hold Time
0
0
ns
ns
ns
t
WC
Write Enable to Chip Enable Hold Time
55
75
40
ns
t
1H
, t
0H
Logical “1”, Logical “0” Levels into 3-STATE
275
500
ns
325
600
ns
t
H1
, t
H0
3-STATE to Logical “1” or
Logical “0” Levels
325
600
ns
375
500
700
700
1000
1400
ns
ns
ns
μ
s
μ
s
Hz
t
D1
, t
D0
Propagation Delay from Digit Input to
Segment Output
t
IB
Interdigit Blanking Time
5
10
20
525
10
f
MUX
Multiplex Scan Frequency
375
5
30
Hz
pF
pF
C
IN
C
OUT
Input Capacitance
3-STATE Output Capacitance
7.5
50
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74C911 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74C912 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| 74C922 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:16, 20-Key Encoder |
| 74C922N | 制造商: 功能描述: 制造商:undefined 功能描述: |
| 74C923 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:16, 20-Key Encoder |
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