SLAAEO3 September 2024 MSPM0L1227 , MSPM0L1227-Q1 , MSPM0L1228 , MSPM0L1228-Q1 , MSPM0L2227 , MSPM0L2228 , MSPM0L2228-Q1
Segment liquid crystal displays (LCDs) provide information to users in a wide variety of applications, from smart meters to electronic shelf labels (ESL) to medical equipment. New MSPM0™ microcontrollers include built-in, low-power LCD driver circuitry that allows the MSPM0 MCU to directly control the segmented LCD glass. This application note explains how segmented LCDs work, the features of the LCD module on the MSPM0 MCU, LCD hardware layout tips, and guidance for writing efficient and easy-to-use LCD driver software.
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There are a number of common applications where MSPM0 microcontrollers with built-in LCD drivers are a great fit. In particular, applications that require both a segmented LCD display, as well as limited battery life or current consumption. Examples include low-power LCD handhelds (like a watch or other device), blood glucose meters, appliances, water meters, electronic shelf labels, and one-time password tokens. The combination of rich analog and peripheral interfaces provided by MSPM0 devices, along with the built-in segment LCD display driver, enable a diverse array of applications with a compelling set of features all in one system on chip (SOC).