AN52927 - PSoC® 3 and PSoC 5LP - Segment LCD Direct Drive

PSoC3 device is equipped with segment LCD driver which allows segment LCD glass to be directly driven without using any external components.

The driver supports LCDs upto 16 commons and can drive upto 768 segments. PSoC Creator tool provides Segment LCD component which simplifies the task of handling different types of segment LCD features such as 7-segment, 14-segment, 16-segment, Dot-Matrix and special symbols. This application note explains how to use Segment LCD component for a given LCD specifications.

This application note only covers segment LCD drive capability of PSoC3. Another type of LCDs- the graphic LCDs can also be interfaced to PSoC3. For details of interfacing graphic LCDs to PSoC3, click the following links-

http://www.cypress.com/?rID=48850

http://www.cypress.com/?rID=48854

Demo Video: PSoC3 Segment LCD Direct Drive Demo

This video explains how to create projects with Segment LCD Component of PSoC3.

The following table indicates the PSoC devices, PSoC Creator versions, compilers, and development kits that will work with this application note project:

*Refer to Migrating CY8CKIT-001 DVK project to CY8CKIT 030/ 050. 

Projects associated with this application note can be downloaded from the ‘Related Files’ section below. For your convenience, we have provided projects that are compatible with the two most recent versions of PSoC Creator:

• AN52927.zip is used with PSoC Creator 2.1 SP1
• AN52927_Archive.zip is used with PSoC Creator 2.1/2.0

The project’s default settings may not be compatible with your device or kit, and you may need to change your project settings. For more information, see: