HD74HC147 Datasheet, PDF (4/6 Pages) Hitachi Semiconductor – 10-to-4-line Priority Encoder

HD74HC147
Waveforms
t_r
t_f
90 %
90 %
V_CC
Input
50 %
50 %
10 %
10 %
0V
t_PLH
t_PHL
Same-phase output
50 %
10 %
90 %
t_PHL ^tTLH
90 %
V_OH
50 %
10 %
V_OL
t_PLH
t_THL
Inverse-phase output
90 %
50 %
10 %
90 %
V_OH
50 %
10 %
V_OL
t_THL
t_TLH
Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, t_r ≤ 6 ns, t_f ≤ 6 ns
2. The output are measured one at a time with one transition per measurement.
Rev.2.00, Oct 11, 2005 page 4 of 5