Texas Instruments CD4078BE 8-Input NOR/OR Logic Gate, DIP14

The Texas Instruments CD4078BE is a CMOS integrated circuit that provides the system designer with a direct implementation of both 8-input NOR and OR logic functions in a single compact package. It is part of the established 4000B series and supplements the existing family of CMOS gates, offering a reliable solution for complex logic operations.

This gate features medium speed operation, with typical propagation delays (tPHL, tPLH) of 75ns at a supply voltage (VDD) of 10V. It incorporates buffered inputs and outputs, which help to standardise signal levels and improve noise immunity, alongside standardised symmetrical output characteristics for consistent performance.

Rigorous testing ensures high quality and reliability. Each device is 100% tested for quiescent current at 20V and boasts a very low maximum input current of just 1µA at 28V, contributing to excellent power efficiency. Its robust design supports a wide operating voltage range from 3V to 18V and can deliver an output current of 6.8mA.

Ideal Applications

This versatile logic IC is perfectly suited for a variety of signal processing tasks where multiple inputs need to be combined. Its 8-input capability makes it highly useful in data path control, arithmetic logic units (ALUs), and complex gating functions within digital systems. The DIP (Dual In-line Package) format ensures easy prototyping and integration into breadboards and through-hole PCBs.

With an operating temperature range from -55°C to 125°C, the CD4078BE is built for stability across demanding environments, making it suitable for industrial, automotive, and commercial electronic designs.

Key Specifications at a Glance

• Logic Function: 8-Input NOR / OR Gate
• Number of Elements: Single
• Package Type: 14-pin DIP (Dual In-line Package)
• Supply Voltage Range: 3V to 18V
• Typical Propagation Delay: 75ns at V