93l24 National Semiconductor Corporation, 93l24 Datasheet - Page 3

• Manufacturer Part Number: 93l24
• Description: 5-bit Comparator
• Manufacturer: National Semiconductor Corporation

Switching Characteristics
V
Functional Description
The 93L24 5-bit comparators use combinational circuitry to
directly generate ‘‘A greater than B’’ and ‘‘A less than B’’
outputs As evident from the logic diagram these ouptuts
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)
Logic Diagram
CC
e a
Symbol
t
t
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
5 0V T
A
e a
25 C (See Section 1 for test waveforms and output load)
Propagation Delay
E to A
Propagation Delay
An to A
Propagation Delay
An to A
Propagation Delay
An or Bn to A
e
l
k
Parameter
B E to A
B Bn to A
B Bn to A
e
B
k
B A
l
k
B
B
l
B
3
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
Min
l
l
C
B output from one device into an A input on
B output will be HIGH regardless of all other
L
e
15 pF
k
Max
100
102
B output into the corresponding
32
35
54
75
70
77
Units
TL F 10199 – 3
ns
ns
ns
ns