MC14489BDWE

Display Drivers Overview

The MC14489BDWE is a CMOS multi-character LED display and lamp driver manufactured by NXP USA Inc. It directly interfaces to individual lamps, 7-segment displays, or combinations thereof. The device drives LEDs wired with common cathodes in a multiplexed-by-5 fashion via low-resistance FET switches. Communication with a host microcontroller is established through a synchronous serial port. The drive circuitry operates within a voltage range of 4.5 to 6 V, and the operating junction temperature range is –40°C to 130°C.

Display Drivers Feature Summary

• Integrated decode and scan circuitry relieves processor overhead
• Low-power mode extinguishes LEDs and minimizes EMI
• Power-on reset blanks the display on power-up
• Single current-setting resistor controls anode drive

Display Drivers Applications

• Multi-character LED display systems
• 7-segment display driving
• Lamp control applications

Display Drivers Procurement Notes

Verify the manufacturer designation as NXP USA Inc. for this specific part number variant. Confirm the package type and suffix correspondence against official documentation. Ensure the component meets the specified operating voltage and temperature ranges for your application environment.

Display Drivers Selection Notes

Select this driver when direct interface to common-cathode LED arrays or lamps is required without complex external switching logic. The integrated serial interface simplifies MCU connection. Consider the multiplexing factor and available I/O lines when designing the system architecture.

Display Drivers Part Context

This component belongs to the legacy Motorola/NXP line of display drivers. It is designed for applications requiring efficient management of multiple display segments or indicator lamps. The device integrates necessary decoding and scanning functions to reduce system complexity.

Display Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.