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CD4063BMS Schematic ( PDF Datasheet ) - Intersil Corporation

Teilenummer CD4063BMS
Beschreibung CMOS 4-Bit Magnitude Comparator
Hersteller Intersil Corporation
Logo Intersil Corporation Logo 




Gesamt 8 Seiten
CD4063BMS Datasheet, Funktion
CD4063BMS
December 1992
CMOS 4-Bit Magnitude Comparator
Features
Pinout
• High Voltage Type (20V Rating)
• Expansion to 8, 12, 16 . . . 4N Bits by Cascading Units
• Medium Speed Operation
- Compares Two 4-Bit Words in 250ns (Typ.) at 10V
• 100% Tested for Quiescent Current at 20V
• Standardized Symmetrical Output Characteristics
• 5V, 10V and 15V Parametric Ratings
• Maximum Input Current of 1µA at 18V Over Full Pack-
age Temperature Range; 100nA at 18V and +25oC
• Noise Margin (Full Package Temperature Range)
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
• Meets All Requirements of JEDEC Tentative Standard
No. 13B, “Standard Specifications for Description of
‘B’ Series CMOS Devices”
CD4063BMS
TOP VIEW
B3 1
(A < B) IN 2
(A = B) IN 3
(A > B) IN 4
(A > B) OUT 5
(A = B) OUT 6
(A < B) OUT 7
VSS 8
16 VDD
15 A3
14 B2
13 A2
12 A1
11 B1
10 A0
9 B0
Functional Diagram
Applications
• Servo Motor Controls
• Process Controllers
Description
CD4063BMS is a 4-bit magnitude comparator designed for use
in computer and logic applications that require the comparison of
two 4-bit words. This logic circuit determines whether one 4-bit
word (Binary or BCD) is “less than”, “equal to”, or “greater than” a
second 4-bit word.
The CD4063BMS has eight comparing inputs (A3, B3, through
A0, B0), three outputs (A < B, A = B, A > B) and three cascading
inputs (A < B, A = B, A > B) that permit systems designers to
expand the comparator function to 8, 12, 16 . . . 4N bits. When a
single CD4063BMS is used, the cascading inputs are connected
as follows: (A < B) = low, (A = B) = high, (A > B) = low.
For words longer than 4 bits, CD4063BMS devices may be cas-
caded by connecting the outputs of the less significant compara-
tor to the corresponding cascading inputs of the more significant
comparator. Cascading inputs (A < B, A = B, and A > B) on the
least significant comparator are connected to a low, a high, and a
low level, respectively.
The CD4063BMS is supplied in these 16 lead outline pack-
ages:
Braze Seal DIP
Frit Seal DIP
Ceramic Flatpack
H4T
H1E
H6W
4
WORD A
A>B
CASCADING
INPUTS
A=B
A<B
4
WORD B
A>B
A=B
A<B
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
7-958
File Number 3318






CD4063BMS Datasheet, Funktion
CD4063BMS
Logic Diagram
A0 10 *
A1 12 *
A2 13 *
COMPARING
INPUTS
A3 15 *
B0 9 *
B1 11 *
B2 14 *
B3 1 *
(A < B) IN 2 *
CASCADING
INPUTS
(A > B) IN 4 *
(A = B) IN 3 *
A0
A0
A1
A1
A2
A2
A3
A3
B0
B0
B1
B1
B2
B2
B3
B3
(A < B) i - I
(A > B) i - I
* ALL INPUTS PROTECTED
BY THE CMOS
PROTECTION NETWORK
VDD
INPUT
TERMINAL
VSS
A3
B3
A3
B3
A2
B2
A2
B2
A1
B1
A1
B1
A0
B0
A0
B0
(A < B) i - I
B3
A3
B3
A3
B2
A2
B2
A2
B1
A1
B1
A1
B0
A0
B0
A0
(A > B) i - I
A<B
A>B
7 (A < B) OUT
6 (A = B) OUT
5 (A > B) OUT
A3, B3
A3 > B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 = B3
A3 < B3
X = Don’t Care
FIGURE 2. LOGIC DIAGRAM
TRUTH TABLE
INPUTS
COMPARING
CASCADING
A2, B2
A1, B1
A0, B0
A <B A = B A > B
X
A2 > B2
A2 = B2
A2 = B2
X
X
A1 > B1
A1 = B1
X
X
X
A0 > B0
XXX
XXX
XXX
XXX
A2 = B2
A2 = B2
A2 = B2
A1 = B1
A1 = B1
A1 = B1
A0 = B0
A0 = B0
A0 = B0
001
010
100
A2 = B2
A2 = B2
A2 < B2
X
A1 = B1
A1 < B1
X
X
A0 < B0
X
X
X
XXX
XXX
XXX
XXX
Logic 1 = High Level Logic 0 = Low Level
OUTPUTS
A<B A=B A>B
001
001
001
001
001
010
100
100
100
100
100
7-963

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