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74VHCT157 数据表(PDF) 5 Page - STMicroelectronics

部件名 74VHCT157
功能描述  QUAD 2 CHANNEL MULTIPLEXER
Download  9 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74VHCT157 数据表(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
2.0
VILD
Dynamic Low Voltage
Input (note 1, 3)
5.0
0.8
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)
74VHCT157A
5/9


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