74VHCT574A Просмотр технического описания (PDF) - STMicroelectronics

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74VHCT574A

OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING

STMicroelectronics 

74VHCT574A

TEST CIRCUIT

TEST

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

CL = 15/50 pF or equivalent (includes jig and probe capacitance)

RL = R1 = 1KΩ or equivalent

RT = ZOUT ofpulse generator (typically 50Ω)

S WIT CH

Open

VCC

GND

WAVEFORM 1: PROPAGATION DELAYS, SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle)

6/10

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