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SN74LS299
3-STATE WAVEFORMS
VIN
VOUT
1.3 V
tPLH
1.3 V
1.3 V
tPHL
1.3 V
Figure 1.
VIN
VOUT
1.3 V
tPLH
1.3 V
1.3 V
tPHL
1.3 V
Figure 2.
VE
VE
VOUT
1.5 V
1.5 V
tPZL
1.5 V
tPLZ
≈ 1.5 V
0.5 V
VOL
Figure 3.
VE
VE
tPZH
VOUT
1.5 V
tPHZ
1.5 V
1.5 V
≥ VOH
≈ 1.5 V
0.5 V
Figure 4.
TO OUTPUT
UNDER TEST
VCC
RL
SW1
AC LOAD CIRCUIT
SWITCH POSITIONS
SYMBOL
SW1
SW2
tPZH
tPZL
tPLZ
tPHZ
Open
Closed
Closed
Closed
Closed
Open
Closed
Closed
5 kΩ
CL*
SW2
* Includes Jig and Probe Capacitance.
Figure 5.
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