MC14585B
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4
Figure 1. Dynamic Power Dissipation
Signal Waveforms
Figure 2. Dynamic Signal Waveforms
20 ns
20 ns
2f
1
V
DD
V
SS
V
DD
V
SS
V
OH
V
OL
V
OH
V
OL
V
OH
V
OL
(A<B)
out
(A=B)
out
(A>B)
out
B3
A3
20 ns
20 ns
V
DD
V
SS
V
OH
V
OL
90%
50%
10%
t
PLH
t
PHL
t
TLH
t
THL
90%
50%
10%
B0
(A=B)
out
(A<B)
out
Inputs (A>B) and (A=B) high, and inputs B3, A3, B2,
A2, B1, A1, A0, and (A<B) low.
Inputs (A>B) and (A=B) high, and inputs B2, A2, B1,
A1, B0, A0 and (A<B) low.
f in respect to a system clock.
Figure 3. Cascading Comparators
B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
V
SS
V
DD
V
SS
WORD
B =
A =
WORD
MC14585B
MC14585B
MC14585B
B3 A3 B2 A2 B1 A1 B0 A0
(A<B)
(A=B)
(A>B)
INPUTS
(A<B)
(A=B)
(A>B)
OUTPUT
(A<B)
(A=B)
(A>B)
OUTPUTS
WORD B = B11, B10,
...
, B0.
WORD A = A11, A10,
...
, A0.
