MC74LCX2952DW データシートの表示（PDF） - Motorola => Freescale

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MC74LCX2952DW

Low-Voltage CMOS Octal Registered Transceiver With Dual Output and Clock Enables

Motorola => Freescale 

tw

NEGATIVE

1.5V

1.5V

PULSE

PULSE

GENERATOR

POSITIVE

1.5V

1.5V

PULSE

tw

WAVEFORM 4 – INPUT PULSE DEFINITION

tR = tF = 2.5ns, 10% to 90% of 0V to 2.7V

Figure 4. AC Waveforms (continued)

VCC

DUT

RT

R1

CL

RL

MC74LCX2952

6V

OPEN

GND

TEST

SWITCH

tPLH, tPHL

Open

tPZL, tPLZ

6V

Open Collector/Drain tPLH and tPHL

6V

tPZH, tPHZ

GND

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

RL = R1 = 500Ω or equivalent

RT = ZOUT of pulse generator (typically 50Ω)

Figure 5. Test Circuit

LCX DATA

7

BR1339 — REV 3

MOTOROLA

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