74LS245 Datasheet, PDF (3/6 Pages) National Semiconductor (TI) – TRI-STATE Octal Bus Transceiver

Switching Characteristics V_CC e 5V T_A e 25 C (See Section 1 for Test Waveforms and Output Load)
DM54 74
Symbol
Parameter
Conditions
LS245
Units
Min
Max
t_PLH
t_PHL
t_PZL
t_PZH
t_PLZ
t_PHZ
t_PLH
t_PHL
t_PZL
t_PZH
Propagation Delay Time Low-to-High-Level Output
Propagation Delay Time High-to-Low-Level Output
Output Enable Time to Low Level
Output Enable Time to High Level
Output Disable Time from Low Level
Output Disable Time from High Level
Propagation Delay Time Low-to-High-Level Output
Propagation Delay Time High-to-Low-Level Output
Output Enable Time to Low Level
Output Enable Time to High Level
C_L e 45 pF
R_L e 667X
C_L e 5 pF
R_L e 667X
C_L e 150 pF
R_L e 667X
12
ns
12
ns
40
ns
40
ns
25
ns
25
ns
16
ns
17
ns
45
ns
45
ns
3