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SN74HCT157N View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
SN74HCT157N QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS Texas-Instruments
Texas Instruments Texas-Instruments
SN74HCT157N Datasheet PDF : 13 Pages
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SN54HCT157, SN74HCT157
QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTORS/MULTIPLEXERS
SCLS071D − NOVEMBER 1988 − REVISED OCTOBER 2003
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
Test
Point
CL = 50 pF
(see Note A)
Input
(see Note B)
Output
1.3 V
tPLH
1.3 V
10%
1.3 V
90%
tPHL
90%
tr
3V
0V
VOH
1.3 V
10% VOL
tf
LOAD CIRCUIT
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
NOTES: A. CL includes probe and test-fixture capacitance.
B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR 1 MHz, ZO = 50 , tr = 6 ns, tf = 6 ns.
C. The outputs are measured one at a time with one input transition per measurement.
D. tPLH and tPHL are the same as tpd.
Figure 1. Load Circuit and Voltage Waveforms
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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