74VHCT373A(2001) 查看數據表（PDF） - STMicroelectronics

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74VHCT373A
(Rev.:2001)

OCTAL D-TYPE LATCH WITH 3 STATE OUTPUTS NON INVERTING

STMicroelectronics 

74VHCT373A

TEST CIRCUIT

TEST

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

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

RL = R1 = 1KΩ or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

SWITCH

Open

VCC

GND

WAVEFORM 1: LE TO Qn PROPAGATION DELAYS, LE MINIMUN PULSE WIDTH, Dn TO LE SETUP

AND HOLD TIMES (f=1MHz; 50% duty cycle)

6/10

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