74LCX139 datasheet(5/8 Pages) ONSEMI

Part #	74LCX139

Description	Dual Low-Voltage CMOS 2-to-4 Decoder/Demultiplexer

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Manufacturer	ONSEMI [ON Semiconductor]

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MC74LCX139

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5

Figure 5. Waveform 1 Prop Delays

50%

tPHL

tPLH

VCC

GND

Y

50% VCC

A

VCC

GND

tPHL

tPLH

Y

E

50% VCC

50%

Figure 6. Waveform 2 Output Enable

PULSE

GENERATOR

RT

DUT

VCC

RL

CL

Figure 7. Test Circuit

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

RL = R1 = 500 W or equivalent

RT = ZOUT of pulse generator (typically 50 W)

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