HD74LS155 Datasheet, PDF (5/7 Pages) Hitachi Semiconductor – Dual 2-line-to-4-line Decoders/Demultiplexers

HD74LS155
Waveform
t_TLH
t_THL
90%
90%
3V
Input
1.3 V
1.3 V
10%
10%
0V
t_PLH
t_PHL
In phase output
1.3 V
t_PHL
1.3 V
t_PLH
V_OH
V_OL
Out of phase output
1.3 V
V_OH
1.3 V
V_OL
Note: Input pulse; t_TLH ≤ 15 ns, t_THL ≤ 6 ns, PRR = 1 MHz, duty cycle 50%
Rev.2.00, Feb.18.2005, page 5 of 6