HD74HC354 Datasheet, PDF (7/10 Pages) Hitachi Semiconductor – 8-to-1-line Data Selectors/Multiplexer Register(with 3-state outputs)

HD74HC354
• Waveform – 2
D0 to D7
or
S0 to S2
DC or SC
t_r
t_f
10 %
90 %
50 %
t_su
90 %
50 %
t_h
10 %
t_su
t_f
90 %
50 %
t_r
10 % 10 %
90 %
50 %
50 %
50 %
t_h
50 %
t_PLH
t_PHL
90 %
90 %
Y
50 %
50 %
10 %
10 %
t_TLH
t_PHL
t_PLH^tTHL
90 %
90 %
W
50 %
50 %
10 %
10 %
t_THL
t_TLH
V_CC
0V
V_CC
0V
V_OH
V_OL
V_OH
V_OL
Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, t_r ≤ 6 ns, t_f ≤ 6 ns
• Waveform – 3
t_f
t_r
G1, G2
90 %
90 %
90 %
90 %
V_CC
50 %
50 %
G3
10 %
10 %
10 %
10 %
0V
t_ZL
t_LZ
Waveform – A
Waveform – B
50 %
t_ZH
50 %
10 %
t_HZ
90 %
V_OH
V_OL
V_OH
V_OL
Notes : 1. Input waveform : PRR ≤ 1 MHz, duty cycle 50%, t_r ≤ 6 ns, t_f ≤ 6 ns
2. Waveform– A is for an output with internal conditions such that the
output is low except when disabled by the output control.
3. Waveform– B is for an output with internal conditions such that the
output is high except when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
Rev.2.00 Jan 31, 2006 page 7 of 9