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MM54C85 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # MM54C85
Description  4-Bit Magnitude Comparator
PDF  4 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

MM54C85 Datasheet(HTML) 3 Page - National Semiconductor (TI)

  MM54C85 Datasheet HTML 1Page - National Semiconductor (TI) MM54C85 Datasheet HTML 2Page - National Semiconductor (TI) MM54C85 Datasheet HTML 3Page - National Semiconductor (TI) MM54C85 Datasheet HTML 4Page - National Semiconductor (TI)  
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Typical Applications
Four Digit Comparator
TLF5886 – 2
Connection Diagram
Dual-In-Line Package
TLF5886 – 3
Top View
Order Number MM54C85
or MM74C85
Switching Time
Waveforms
TLF5886 – 4
Unused inputs must be tied
to an appropriate logic level
Truth Table
Comparing Inputs
Cascading Inputs
Outputs
A3 B3
A2 B2
A1 B1
A0 B0
A l BA k BA e BA l BA k BA e B
A3 l B3
X
X
X
X
X
X
H
L
L
A3 k B3
X
X
X
X
X
X
L
H
L
A3 e B3
A2 l B2
X
X
X
X
X
H
L
L
A3 e B3
A2 k B2
X
X
X
X
X
L
H
L
A3 e B3
A2 e B2
A1 l B1
X
X
X
X
H
L
L
A3 e B3
A2 e B2
A1 k B1
X
X
X
X
L
H
L
A3 e B3
A2 e B2
A1 e B1
A0 l B0
X
X
X
H
L
L
A3 e B3
A2 e B2
A1 e B1
A0 k B0
X
X
X
L
H
L
A3 e B3
A2 e B2
A1 e B1
A0 e B0
H
L
L
H
L
L
A3 e B3
A2 e B2
A1 e B1
A0 e B0
L
H
L
L
H
L
A3 e B3
A2 e B2
A1 e B1
A0 e B0
L
L
H
L
L
H
A3 e B3
A2 e B2
A1 e B1
A0 e B0
L
H
H
L
H
H
A3 e B3
A2 e B2
A1 e B1
A0 e B0
H
L
H
H
L
H
A3 e B3
A2 e B2
A1 e B1
A0 e B0
H
H
H
H
H
H
A3 e B3
A2 e B2
A1 e B1
A0 e B0
H
H
L
H
H
L
A3 e B3
A2 e B2
A1 e B1
A0 e B0
L
L
L
L
L
L
H e high level L e low level X e irrelevant
3



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