MC74LCX245DTEL 查看數據表（PDF） - ON Semiconductor

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MC74LCX245DTEL

Low-Voltage CMOS Octal Transceiver

ON Semiconductor 

PULSE

GENERATOR

MC74LCX245

VCC

DUT

RT

R1

CL

RL

6V

OPEN

GND

TEST

SWITCH

tPLH, tPHL

tPZL, tPLZ

Open

6 V at VCC = 3.3 0.3 V

6 V at VCC = 2.5 0.2 V

Open Collector/Drain tPLH and tPHL

6V

tPZH, tPHZ

GND

CL = 50 pF at VCC = 3.3 0.3 V or equivalent (includes jig and probe capacitance)

CL = 30 pF at VCC = 2.5 0.2 V or equivalent (includes jig and probe capacitance)

RL = R1 = 500 Ω or equivalent

RT = ZOUT of pulse generator (typically 50 Ω)

Figure 4. Test Circuit

http://onsemi.com

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