UC1724L

Overview

The UC1724L is a monolithic liquid crystal display driver manufactured by Texas Instruments. It integrates a 1/4 duty cycle, 32-segment common drive capability with an internal oscillator and voltage regulator. The device supports up to 128 segments and 4 commons for flexible display configurations. Key electrical parameters include a supply voltage range of 2.5V to 6.0V, an internal reference voltage, and a contrast control mechanism via external resistor. It operates within a temperature range of -40°C to +85°C and is available in a 28-pin SOIC package.

Feature Summary

• Integrates LCD controller and driver functions into a single chip
• Includes internal oscillator eliminating need for external clock components
• Features built-in voltage regulator for stable operation
• Supports programmable contrast control through external resistance

Applications

• Industrial instrument displays
• Medical equipment interfaces
• Consumer appliance panels

Procurement Notes

Verify the specific suffix code against the manufacturer datasheet to confirm package type and temperature grade. Ensure the ordering part number matches the required pin configuration and electrical specifications for your design. Cross-reference the component marking with official documentation to prevent counterfeit substitution.

Selection Notes

Select this component when a compact solution for small to medium-sized LCD panels is required. Consider the internal oscillator stability and contrast control requirements relative to your display module. Evaluate the power consumption characteristics against battery life constraints if applicable.

Part Context

This part belongs to the UC17xx series of LCD drivers from Texas Instruments. These devices are designed for low-power applications requiring simple interface protocols. The series offers various segment counts and packaging options to suit different display sizes and form factors.

Replacement Considerations

Check for direct pin-compatible alternatives such as the UC1701 or UC1601 series if mechanical fitment is critical. Verify functional equivalence regarding command set compatibility and timing parameters before substituting.