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SN74ABT540PWR データシートの表示(PDF) - Texas Instruments

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SN74ABT540PWR OCTAL BUFFERS / DRIVERS WITH 3-STATE OUTPUTS TI
Texas Instruments TI
SN74ABT540PWR Datasheet PDF : 6 Pages
1 2 3 4 5 6
SN54ABT540, SN74ABT540
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS188C – FEBRUARY 1991 – REVISED JANUARY 1997
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
CL = 50 pF
(see Note A)
500
500
7V
S1
Open
GND
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
7V
Open
Input
LOAD CIRCUIT
tw
1.5 V
1.5 V
VOLTAGE WAVEFORMS
PULSE DURATION
Timing Input
3V
Data Input
0V
3V
1.5 V
0V
tsu
th
3V
1.5 V
1.5 V
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Input
1.5 V
3V
1.5 V
0V
tPLH
Output
1.5 V
tPHL
VOH
1.5 V
VOL
tPHL
tPLH
Output
1.5 V
1.5 V
VOH
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
Output
Control
Output
Waveform 1
S1 at 7 V
(see Note B)
Output
Waveform 2
S1 at Open
(see Note B)
tPZL
tPZH
1.5 V
tPLZ
1.5 V
tPHZ
1.5 V
3V
1.5 V
0V
3.5 V
VOL + 0.3 V VOL
VOH – 0.3 V VOH
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50 , tr 2.5 ns, tf 2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
4
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