CD4063B-MIL 4-Bit Magnitude Comparator (High-Reliability CMOS Logic)

When your digital circuit needs to make autonomous decisions based on numerical values, the CD4063B is the fundamental building block you require. This 4-bit magnitude comparator is designed to take two 4-bit binary words (Word A and Word B) and instantly determine their relationship. Depending on the input values, the chip will output a definitive high signal on one of its three output pins, telling your circuit exactly whether Word A is greater than Word B, Word A is less than Word B, or Word A is exactly equal to Word B.

What sets the MIL variant apart is its military-grade specification. Built for extreme reliability and harsh environments, this chip supports the full military temperature range of -55 to +125 degrees Celsius and boasts the exceptionally wide operating voltage limits inherent to the classic CD4000 CMOS logic family. Whether you are building an automated sorting machine, a digital thermostat, or a complex servo positioning system that operates in industrial heat, this comparator delivers flawless logic without failing under stress.

Key Features & Functional Advantages

• Instant Binary Comparison: Directly compares two 4-bit numbers and provides dedicated hardware output pins for "Greater Than", "Less Than", and "Equal To" states.

• Infinite Expandability: Features dedicated cascading inputs, allowing you to daisy-chain multiple CD4063B chips together to compare 8-bit, 16-bit, or even 32-bit words without the need for external logic gates.

• MIL-Spec Reliability: Engineered to operate flawlessly in extreme environments with an extended temperature range.

• Wide Voltage Range: True to its CMOS heritage, it operates anywhere from 3 Volts to 18 Volts DC, allowing it to interface directly with both standard 5-Volt microcontrollers and higher-voltage industrial sensors.

• Ultra-Low Power Consumption: The CMOS architecture ensures minimal current draw, making it perfect for battery-powered, always-on logic systems.

Perfect For

• Digital Positioning Systems: Essential for servo and stepper motor controllers where a current digital position must be constantly compared against a target destination.

• Industrial Automation: Grading, sorting, and batching machines that need to compare sensor counts against a set threshold in real-time.

• Harsh Environments: Automotive, aerospace, or heavy-duty outdoor projects where standard commercial logic chips might fail due to extreme temperature fluctuations.

• Address Decoding: Can be utilized in custom memory or peripheral addressing schemes to ensure hardware only activates when a specific binary signature is matched.

Technical Specifications

• Logic Family: CD4000 Series CMOS

• Function: 4-Bit Magnitude Comparator

• Operating Voltage Range: 3.0 Volts to 18.0 Volts DC

• Operating Temperature Range: -55 to +125 degrees Celsius (Military Specification)

• Input/Output Currents: Symmetrical standardized output drive

• Package Type: 16-Pin Dual Inline Package (Available in Ceramic or Plastic depending on the specific batch)

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