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參數(shù)資料
| 型號： | SN54AHCT123AFKR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 諧振器 |
| 英文描述： | AHCT/VHCT SERIES, DUAL MONOSTABLE MULTIVIBRATOR, CQCC20 |
| 封裝： | CERAMIC, CC-20 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 163K |
| 代理商： | SN54AHCT123AFKR |
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420C – JUNE 1998 – REVISED DECEMBER 1999
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Figure 7
MINIMUM TRIGGER TIME
vs
VCC CHARACTERISTICS
RT = 1 k
TA = 25°C
10.00
0
1.00
0.10
0.01
12
3
4
5
6
CT = 0.01 F
CT = 1000 pF
CT = 100 pF
VCC – Supply Voltage – V
Minimum
Retrigger
T
ime
–
s
rr
–
t
Figure 8
1.20
1.15
1.10
1.05
1.00
0.95
0.90
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
RT = 10 k
TA = 25°C
tW = K × CT × RT
VCC – Supply Voltage – V
OUTPUT PULSE-DURATION CONSTANT
vs
SUPPLY VOLTAGE
Output
Pulse-Duration
Constant
–
K
CT = 1000 pF
CT = 0.01 F
CT = 0.1 F
Figure 9
1.00 1.50 2.00
2.50 3.00 3.50 4.00 4.50
0.00001
0.0001
0.001
TA = 25°C
VCC = 5 V
For Capacitor Values of
0.001
F or Greater,
K = 1.0
(K is Independent of R)
Multiplier Factor – K
EXTERNAL CAPACITANCE
vs
MULTIPLIER FACTOR
C
T
–
External
Capacitor
V
alue
–
F
Figure 10
–3 Std. Dev.
+3 Std. Dev.
MEDIAN
Output Pulse Duration (tw)
Relative
Frequency
of
Occurance
Mean = 856 ns
Median = 856 ns
Std. Dev. = 3.5 ns
VCC = 5 V
TA = 25°C
CT = 50 pF
RT = 10 k
DISTRIBUTION OF UNITS
vs
OUTPUT PULSE DURATION
99% of Data Units
Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
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