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M74HCT139M1R Fiches technique(PDF) 4 Page - STMicroelectronics

No de pièce M74HCT139M1R
Description  DUAL 2 TO 4 DECODER/DEMULTIPLEXER
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M74HCT139M1R Fiches technique(HTML) 4 Page - STMicroelectronics

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AC ELECTRICAL CHARACTERISTICS (CL =50 pF, Input tr =tf =6 ns)
Symbol
Parameter
Test Conditions
Value
Unit
VCC
(V)
TA =25
oC
54HC and 74HC
-40 to 85
oC
74HC
-55 to 125
oC
54HC
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH
tTHL
Output Transition
Time
4.5
8
151922
ns
tPLH
tPHL
Propagation
Delay Time
(A, B - Y)
4.5
19
30
38
45
ns
tPLH
tPHL
Propagation
Delay Time
(G - Y)
4.5
17
27
34
41
ns
CIN
Input Capacitance
5
10
10
10
pF
CPD (*)
Power Dissipation
Capacitance
40
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD
•VCC •fIN +ICC/2 (per decoder)
TEST CIRCUIT ICC (Opr.)
INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF
SWITCHING CHARACTERISTICS TEST.
SWITCHING CHARACTERISTICS TEST CIR-
CUIT
M54/M74HCT139
4/9


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