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| M54HC257_04 Datasheet, PDF (6/10 Pages) STMicroelectronics – RAD-HARD QUAD 2 CHANNEL MULTIPLEXER (3-STATE) | |||
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M54HC257
TEST CIRCUIT
TEST
tPLH, tPHL
tPZL, tPLZ
tPZH, tPHZ
CL = 50pF/150pF or equivalent (includes jig and probe capacitance)
R1 = 1K⦠or equivalent
RT = ZOUT of pulse generator (typically 50â¦)
WAVEFORM 1: PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
SWITCH
Open
VCC
GND
6/10
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