HD74HC356 Datasheet, PDF (6/9 Pages) Hitachi Semiconductor – 8-to-1-line Data Selectors/Multiplexer/Register(with 3-state outputs)

HD74HC356
Test Circuit
VCC
Input
Pulse Generator
Zout = 50 Ω
Input
Pulse Generator
Zout = 50 Ω
VCC
Output
SC
S0 to S2
D0 to D7
G1, G2
W
Output
Y
G3
Clock
1 kΩ _S1
C_L =
50 pF
1 kΩ _S1
C_L =
50 pF
OPEN
GND
V_CC
OPEN
GND
V_CC
TEST
t_PLH / t _PHL
t_ZH/ t _HZ
t_ZL / t _LZ
S1
OPEN
GND
V_CC
Note : 1. C_L includes probe and jig capacitance.
Waveforms
• Waveform – 1
t_r
t_f
D0 to D7
90 %
90 %
V_CC
or
50 %
50 %
S0 to S2
10 %
10 %
0V
t_PLH
t_PHL
Output Y
50 %
10 %
90 %
t_PHL ^tTLH
90 %
V_OH
50 %
10 %
V_OL
t_PLH
t_THL
Output W
90 %
50 %
10 %
t_THL
90 %
V_OH
50 %
10 %
V_OL
t_TLH
Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, t_r ≤ 6 ns, t_f ≤ 6 ns
Rev.2.00 Jan 31, 2006 page 6 of 8