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| MC74LVXC3245DTRG Datasheet, PDF (7/9 Pages) ON Semiconductor – Configurable Dual Supply Octal Transceiver | |||
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MC74LVXC3245
An, Bn
50% VCC
tPLH
Bn, An
50% VCC
VCC
50% VCC
0V
tPHL
VOH
50% VCC
VOL
WAVEFORM 1 - PROPAGATION DELAYS
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
OE, T/R
An, Bn
An, Bn
50% VCC
50% VCC
tPZH
tPHZ
50% VCC
tPZL
tPLZ
50% VCC
WAVEFORM 2 - OUTPUT ENABLE AND DISABLE TIMES
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
Figure 4. AC Waveforms
VCC
0V
VCC
VOH - 0.3 V
â0V
â VCC
VOL + 0.3 V
GND
PULSE
GENERATOR
VCC
DUT
RT
R1
CL
RL
2xVCC
OPEN
TEST
SWITCH
tPLH, tPHL, tPZH, tPHZ
Open
tPZL, tPLZ
2xVCC
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 5. Test Circuit
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