SL74LS245D View Datasheet(PDF) - System Logic Semiconductor
Part Name
Description
View to exact match
SL74LS245D Datasheet PDF : 4 Pages
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SL74LS245
Note 1: Not more thanone output should be shorted at a time, and duration of the short-circuit should not exceed
one second.
AC ELECTRICAL CHARACTERISTICS (TA = 25°C, VCC = 5.0 V, tr = 15 ns,,
tf = 6.0 ns)
Symbol
Parameter
Test Condition
Min Max Unit
tPLH Propagation Delay Time, Low-to-High Level
Output (from A or B to Output)
12
ns
tPHL Propagation Delay Time, High-to-Low Level CL = 45 pF,
Output (from A or B to Output)
RL = 667 Ω
tPZH Output Enable Time to High Level (from OE
to Output)
12
ns
40
ns
tPZL Output Enable Time to Low Level (from OE
to Output)
40
ns
tPHZ Output Disable Time from High Level
(from OE to Output)
tPLZ Output Disable Time from Low Level
(from OE to Output)
CL = 5 pF
RL = 667 Ω
25
ns
25
ns
Figure 1. Switching Waveforms
(See Figure 3)
tPZL - S1 closed, S2 opened
tPZH- S1 opened, S2 closed
tPLZ, tPHZ - S1 and S2 closed
Figure 2. Switching Waveforms
(See Figure 4)
NOTES A. CL includes probe and jig capacitance.
B. All diodes are 1N916 or 1N3064.
Figure 3. Test Circuit
SLS
System Logic
Semiconductor
NOTES A. CL includes probe and jig capacitance.
B. All diodes are 1N916 or 1N3064.
Figure 4. Test Circuit
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