HCC4585B STMICROELECTRONICS [STMicroelectronics], HCC4585B Datasheet - Page 3

• Manufacturer Part Number: HCC4585B
• Description: 4-BIT MAGNITUDE COMPARATOR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

LOGIC DIAGRAM
TRUTH TABLE
X = Don’t Care
A 3 , B 3
A3 > B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 < B3
A 2 ,
A2 > B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 = B2
A2 < B2
X
X
Comparing
B 2 A 1 ,
A1 > B1
A1 = B1
A1 = B1
A1 = B1
A1 = B1
A1 = B1
A1 < B1
X
X
X
X
B 1 A 0 ,
A0 > B0
A0 = B0
A0 = B0
A0 = B0
A0 < B0
Inputs
X
X
X
X
X
X
B 0
A < B
X
X
X
X
X
X
X
X
0
0
1
Cascading
A = B
X
X
X
X
X
X
X
X
0
1
0
A > B
X
X
X
X
X
X
1
1
1
1
1
A < B
0
0
0
0
0
0
1
1
1
1
1
HCC/HCF4585B
Outputs
Logic 1 = High Level
A = B
0
0
0
0
0
1
0
0
0
0
0
A > B
1
1
1
1
1
0
0
0
0
0
0
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