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74VHC157 Datasheet(PDF) 5 Page - STMicroelectronics

Part No. 74VHC157
Description  QUAD 2 CHANNEL MULTIPLEXER
Download  9 Pages
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74VHC157 Datasheet(HTML) 5 Page - STMicroelectronics

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DYNAMIC SWITCHING CHARACTERISTICS
Symb ol
Parameter
T est Cond ition s
Val ue
Un it
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
VOLP
Dynamic Low Voltage
Quiet Output (note 1, 2)
5.0
CL =50 pF
0.3
0.8
V
VOLV
-0.8
-0.3
VIHD
Dynamic High Voltage
Input (note 1, 3)
5.0
3.5
VILD
Dynamic Low Voltage
Input (note 1, 3)
5.0
1.5
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 5.0V, (n -1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to5.0V. Inputs under test switching: 5.0V to threshold (VILD), 0V to threshold (VIHD), f=1MHz.
TEST CIRCUIT
CL = 15/50 pF or equivalent (includes jig and probe capacitance)
RT =ZOUT of pulse generator (typically 50
Ω)
74VHC157
5/9


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