CD4001 IC Quad 2-Input NOR Gate

CD4001 IC Quad 2-Input NOR Gate

The CD4001 is a CMOS logic IC that contains four independent 2-input NOR gates. It belongs to the 4000 series of digital logic ICs and performs the basic NOR logic operation. Each gate accepts two inputs and provides a single output.

The IC operates across a wide voltage range from 3 V to 15 V. It features low power consumption and high noise immunity. Inputs support standard CMOS and TTL logic levels. Outputs can directly drive most logic-level loads.

This IC is suitable for general-purpose logic circuits. It offers reliable switching performance and stable operation over a wide range of temperatures and supply voltages. Typical uses include control logic, signal gating, timing circuits, and combinational logic systems.

Applications

• Basic digital logic circuits

• Signal control and gating

• Oscillators and pulse generators

• Alarm and reset circuits

• Logic combinational blocks

• DIY electronics and educational kits

• Sensor signal processing

• Power sequencing and system enable logic

• Home automation logic boards

• Clock signal logic handling

Key Features

• Four 2-input NOR gates in a single IC

• Wide supply voltage: 3 V to 15 V

• Low power consumption

• High noise immunity (typically 100 mV)

• Compatible with TTL and CMOS logic levels

• Buffered outputs for driving standard loads

• Schmitt-trigger inputs (in some variants)

• Operating temperature range: −55 °C to +125 °C

• Available in DIP, SOIC, and TSSOP packages

Pin Configuration (14-Pin DIP/SOIC)

Specifications Table