DM9324N/NOPB National Semiconductor, DM9324N/NOPB Datasheet - Page 3

• Manufacturer Part Number: DM9324N/NOPB
• Manufacturer: National Semiconductor

Specifications of DM9324N/NOPB

• Lead Free Status / RoHS Status: Compliant

Switching Characteristics
V
Functional Description
The ’24 5-bit comparators use combinational circuitry to di-
rectly generate ‘‘A greater than B’’ and ‘‘A less than B’’
outputs As evident from the logic diagram these outputs
are generated in only three gate delays The ‘‘A equals B’’
output is generated in one additional gate delay by decoding
the ‘‘A neither less than nor greater than B’’ condition with a
NOR gate All three outputs are activated by the active LOW
Enable Input (E)
Tying the A
another device and the A
B input permits easy expansion
The A4 and B4 inputs are the most significant inputs and
A0 B0 the least significant Thus if A4 is HIGH and B4 is
LOW the A
inputs except E
Logic Symbol
CC
e a
Symbol
t
t
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
5 0V T
l
l
B output from one device into an A input on
B output will be HIGH regardless of all other
A
e a
25 C (See Section 1 for waveforms and load configurations)
k
B output into the corresponding
Propagation Delay
E to A
Propagation Delay
A
Propagation Delay
A
Propagation Delay
A
n
n
n
Parameter
B
B
B
n
n
n
e
to A
to A
to A
B
l
k
e
B
B
B
V
GND
CC
e
e
3
Pin 16
Pin 6
Truth Table
H
L
X
H
L
L
L
E
e
e
e
Min
LOW Voltage Level
Immaterial
HIGH Voltage Level
Word A
Word A
Word B
C
A
X
L
Inputs
n
e
15 pF
e
l
l
Word B
Word A
Word B
TL F 9792– 2
B
X
n
Max
14
14
25
22
26
21
30
32
A
k
H
L
L
L
B
Outputs
A
l
H
L
L
L
B
Units
ns
ns
ns
ns
A
e
H
L
L
L
B