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MC74LCX07 Datasheet, PDF (4/6 Pages) ON Semiconductor – Low-Voltage CMOS Hex Buffer with Open Drain Outputs
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
CIN
COUT
CPD
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
MC74LCX07
Condition
VCC = 3.3 V, VI = 0 V or VCC
VCC = 3.3 V, VI = 0 V or VCC
10 MHz, VCC = 3.3 V, VI = 0 V or VCC
Typical
7
8
25
Unit
pF
pF
pF
An
Vmi
tPZL
Vmi
tPLZ
VCC
0V
On
Vmo
VLZ
VOL
PROPAGATION DELAYS
tR = tF = 2.5 ns, 10% to 90%; f = 1MHz; tW = 500 ns
PULSE
GENERATOR
Symbol
Vmi
Vmo
VLZ
3.3 V $ 0.3 V
1.5 V
1.5 V
VOL + 0.3 V
VCC
2.7 V
1.5 V
1.5 V
VOL + 0.3 V
2.5 V $ 0.2 V
VCC/2
VCC/2
VOL + 015 V
Figure 3. AC Waveforms
VCC
DUT
RT
R1
CL
RL
6 V or VCC  2
GND
TEST
SWITCH
tPZL, tPLZ
6V
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 W or equivalent
RT = ZOUT of pulse generator (typically 50 W)
Figure 4. Test Circuit
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