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74VHCT139A 数据表(PDF) 4 Page - STMicroelectronics

部件名 74VHCT139A
功能描述  DUAL 2 TO 4 DECODER/DEMULTIPLEXER
Download  8 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74VHCT139A 数据表(HTML) 4 Page - STMicroelectronics

  74VHCT139A Datasheet HTML 1Page - STMicroelectronics 74VHCT139A Datasheet HTML 2Page - STMicroelectronics 74VHCT139A Datasheet HTML 3Page - STMicroelectronics 74VHCT139A Datasheet HTML 4Page - STMicroelectronics 74VHCT139A Datasheet HTML 5Page - STMicroelectronics 74VHCT139A Datasheet HTML 6Page - STMicroelectronics 74VHCT139A Datasheet HTML 7Page - STMicroelectronics 74VHCT139A Datasheet HTML 8Page - STMicroelectronics  
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CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
T est Cond ition s
Val ue
Un it
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
CIN
Input Capacitance
4
10
10
pF
CPD
Power Dissipation
Capacitance (note 1)
26
pF
1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD
• VCC • fIN +ICC/2 (per Decoder)
AC ELECTRICAL CHARACTERISTICS (Input tr =tf =3 ns)
Symb ol
Parameter
Test Co nditi on
Val ue
Un it
VCC
(V)
CL
(pF )
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
tPLH
tPHL
Propagation Delay
Time
A, B, to Y
5.0
(*)
15
7.2
11.0
1.0
13.0
ns
5.0
(*)
50
9.7
14.5
1.0
16.5
tPLH
tPHL
Propagation Delay
Time
Gto Y
5.0
(*)
15
6.4
9.2
1.0
11.0
ns
5.0
(*)
50
8.9
12.7
1.0
14.5
(*) Voltage range is 5V
± 0.5V
TEST CIRCUIT
CL = 15/50 pF or equivalent (includes jig and probe capacitance)
RT =ZOUT of pulse generator (typically 50
Ω)
74VHCT139A
4/8


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