HD74HC682 Datasheet, PDF (5/7 Pages) Hitachi Semiconductor – 8-bit Magnitude Comparator

HD74HC682, HD74HC684
Test Circuit
VCC
Input
Pulse Generator
Zout = 50 Ω
VCC
Output
P₀
P=Q
P₇
Output
Q₀
P>Q
Q₇
C_L =
50 pF
C_L =
50 pF
Note : 1. C_L includes probe and jig capacitance.
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 Mar 30, 2006 page 5 of 6