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參數(shù)資料
| 型號： | 74C926 |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-Digit Counters with Multiplexed |
| 中文描述： | 4位計(jì)數(shù)器的復(fù)用 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大小： | 97K |
| 代理商： | 74C926 |
5
www.fairchildsemi.com
M
AC Electrical Characteristics
(Note 3)
T
A
=
25
°
C, C
L
=
50 pF, unless otherwise noted
Note 3:
AC Parameters are guaranteed by DC correlated testing.
Note 4:
Capacitance is guaranteed by periodic testing.
Typical Performance Characteristics
Typical Segment Current
vs Output Voltage
Note:
V
D
=
Voltage across digit driver
Maximum Power Dissipation
vs Ambient Temperature
Typical Average Segment
Current vs Segment
Resistor Value
Symbol
Parameter
Conditions
Min
Typ
Max
Units
f
MAX
Maximum Clock Frequency
V
CC
=
5V,
Square Wave Clock T
j
=
100
°
C
V
CC
=
5V
V
CC
=
5V
T
j
=
25
°
C
2
4
3
MHz
MHz
μ
s
ns
ns
ns
1.5
t
r
, t
f
t
WR
Maximum Clock Rise or Fall Time
15
Reset Pulse Width
T
j
=
25
°
C
T
j
=
100
°
C
T
j
=
25
°
C
T
j
=
100
°
C
T
j
=
25
°
C
T
j
=
100
°
C
T
j
=
25
°
C
T
j
=
100
°
C
T
j
=
25
°
C
T
j
=
100
°
C
250
320
250
100
125
100
t
WLE
Latch Enable Pulse Width
V
CC
=
5V
320
2500
3200
125
1250
1600
100
100
160
ns
ns
ns
t
SET(CK, LE)
Clock to Latch Enable Set-Up Time
V
CC
=
5V
t
LR
Latch Enable to Reset Wait Time
V
CC
=
5V
0
0
ns
ns
ns
t
SET(R, LE)
Reset to Latch Enable Set-Up Time
V
CC
=
5V
320
400
1000
5
200
ns
Hz
pF
f
MUX
C
IN
Multiplexing Output Frequency
Input Capacitance
V
CC
=
5V
Any Input (Note 4)
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