74LCX646(2004) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

74LCX646
(Rev.:2004)

LOW VOLT. CMOS OCTAL BUS TRANSCEIVER/REGISTER WITH 5 VOLT TOLERANT INPUTS AND OUTPUTS(3-STATE)

STMicroelectronics 

M74LCX646

Figure 5: Test Circuit

tPLH, tPHL

tPZL, tPLZ

tPZH, tPHZ

TEST

SWITCH

Open

6V

GND

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

RL = R1 = 500Ω or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

Figure 6: Waveform - Propagation Delays, SAB, SBA, An, Bn, Times (f=1MHz; 50% duty cycle)

8/16

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