74VHC157M Просмотр технического описания (PDF) - STMicroelectronics

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74VHC157M

QUAD 2 CHANNEL MULTIPLEXER

STMicroelectronics 

74VHC157

DYNAMIC SWITCHING CHARACTERISTICS

Symb ol

Parameter

Test Conditions

V CC

( V)

Value

TA = 25 oC

Min. Typ. Max.

-40 to 85 oC

Min . Max.

Un it

VOLP Dynamic Low Voltage

5.0

VOLV Quiet Output (note 1, 2)

0.3 0.8

-0.8 -0.3

VIHD Dynamic High Voltage

5.0

CL = 50 pF

3.5

V

Input (note 1, 3)

VILD Dynamic Low Voltage

5.0

1.5

Input (note 1, 3)

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 50Ω)

5/9

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