Datasheet
www.ti.com
PARAMETER MEASURMENT INFORMATION
t
h
t
su
DataInput
TimingInput
0V
0V
0V
t
W
Input
0V
Input
Output
Waveform1
S1at7V
(seeNoteB)
Output
Waveform2
S1atOpen
(seeNoteB)
V
OL
V
OH
0V
»0V
Output
Output
Output
Control
1.5V
1.5V 1.5V
1.5V
1.5V
FromOutput
UnderTest
C =50pF
(seeNote A)
L
LOADCIRCUIT
S1
7V
Open
GND
500 Ω
500 Ω
TEST S1
t /t
PLH PHL
Open
7V
t /t
PLZ PZL
Open
t /t
PHZ PZH
VOLTAGEWAVEFORMS
ENABLE ANDDISABLETIMES
LOW- ANDHIGH-LEVEL ENABLING
VOLTAGEWAVEFORMS
PROPAGATIONDELAY TIMES
INVERTING ANDNONINVERTINGOUTPUTS
NOTES: A. C includesprobeandjigcapacitance.
B. Waveform1isforanoutputwithinternalconditionssuchthattheoutputislow,exceptwhendisabledbytheoutputcontrol.
Waveform2isforanoutputwithinternalconditionssuchthattheoutputishigh,exceptwhendisabledbytheoutputcontrol.
C. Allinputpulsesaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR 10MHz,Z =50 ,t
.
D. Theoutputsaremeasuredoneatatime,withonetransitionpermeasurement.
L
O r
£ Ω £
£
2.5ns,
t 2.5ns
f
VOLTAGEWAVEFORMS
PULSEDURATION
VOLTAGEWAVEFORMS
SETUP ANDHOLDTIMES
3V
3V
3V
1.5V
V
M
3.5V
t
PZL
t
PLZ
t
PHZ
t
PZH
V – 0.3V
OH
V +0.3V
OL
1.5V
1.5V
1.5V
1.5V
V
OL
V
OH
3V
3V
V
OH
V
OL
1.5V
1.5V
V
M
1.5V
t
PLH
t
PHL
t
PLH
t
PHL
SN54ABT541, SN74ABT541B
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS093L – DECEMBER 1993 – REVISED DECEMBER 2006
Figure 1. Load Circuit and Voltage Waveforms
6
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