CD4063 4-bit Magnitude Comparator


CD4063 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4063 has a 4-bit Magnitude Comparator

CD4063 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.

CD4063 Features

  • 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 Package 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

CD4063 Specifications

Absolute Maximum Ratings

  • DC Supply Voltage Range, (VDD): -0.5V to +20V (Voltage Referenced to VSS Terminals)
  • Input Voltage Range, All Inputs: -0.5V to VDD +0.5V
  • DC Input Current, Any One Input: ±10mA
  • Operating Temperature Range: -55oC to +125oC Package Types D, F, K, H
  • Storage Temperature Range (TSTG): -65oC to +150oC
  • Lead Temperature (During Soldering): +265oC
    • At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum

CD4063 Pinout Diagram

CD4063 Pin Description

Pin NoPin NameDescription
1B3Input Of Comparator B3
2(A<B) INCascading Input Pin
3(A=B) IN Cascading Input Pin
4(A>B) IN Cascading Input Pin
5 (A>B) OUT Cascading Output Pin
6 (A=B) OUT Cascading Output Pin
7 (A<B) OUT Cascading Output Pin
8VSSSupply Voltage
9B0 Input Of Comparator B0
10A0 Input Of Comparator A0
11B1 Input Of Comparator B1
12A1 Input Of Comparator A1
13A2 Input Of Comparator A2
14B2 Input Of Comparator B2
15A3 Input Of Comparator A3
16VDDDrain Voltage

CD4063 Circuit


  • Servo Motor Controls
  • Process Controllers

CD4063 Alternative Equivalent


Download CD4063 4-bit Magnitude Comparator Datasheet from the link given below.