MC74LCX540_12 Datasheet, PDF(5/8 Page) ON Semiconductor – Low-Voltage CMOS Octal Buffer Flow Through Pinout

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MC74LCX540_12 Datasheet, PDF (5/8 Pages) ON Semiconductor – Low-Voltage CMOS Octal Buffer Flow Through Pinout

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MC74LCX540

1.5 V

tPHL

1.5 V

tPLH

1.5 V

2.7 V

VOH

VOL

WAVEFORM 1 - PROPAGATION DELAYS

tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns

OEn

PULSE

GENERATOR

1.5 V

tPZH

tPHZ

1.5 V

tPZL

tPLZ

1.5 V

WAVEFORM 2 - OUTPUT ENABLE AND DISABLE TIMES

tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns

Figure 3. AC Waveforms

2.7 V

VCC

VOH - 0.3 V

â0V

â 3.0 V

VOL + 0.3 V

GND

VCC

DUT

OPEN

GND

Test

Switch

tPLH, tPHL

Open

tPZL, tPLZ

Open Collector/Drain tPLH and tPHL

tPZH, tPHZ

GND

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

RL = R1 = 500 W or equivalent

RT = ZOUT of pulse generator (typically 50 W)

Figure 4. Test Circuit

http://onsemi.com

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