74LCX573(1999) 查看數據表（PDF） - STMicroelectronics

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74LCX573
(Rev.:1999)

OCTAL D-TYPE LATCH NON INVERTING (3-STATE) WITH 5V TOLERANT INPUTS AND OUTPUTS

STMicroelectronics 

74LCX573

TEST CIRCUIT

TEST

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

CL = 50 pF or equivalent (includes jigand probe capacitance)

RL = R1 = 500Ω orequivalent

RT = ZOUT of pulse generator (typically 50Ω)

SW IT CH

Open

6V

GND

WAVEFORM 1: LE TO Qn PROPAGATION DELAYS, LE MINIMUM PULSE WIDTH,

Dn TO LE SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle)

6/10

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