CYTMA568-70BUI58BB

Overview

The CYTMA568-70BUI58BB is a TrueTouch multi-touch capacitive touchscreen controller featuring a 32-bit ARM Cortex CPU. It supports up to 58 sense pins and reports up to 10 simultaneous fingers with refresh rates up to 230 Hz. The device includes ChargerArmor for noise immunity, DualSense water rejection, passive stylus support, glove tracking, and hover detection. It operates on a 1.71-V to 5.5-V digital supply and communicates via I2C or SPI interfaces.

Feature Summary

• Multi-touch capabilities supporting up to 10 fingers with fast first-touch response (≤13 ms).
• Integrated ChargerArmor technology providing immunity up to 20 volts peak-to-peak.
• DualSense technology enabling water rejection and wet-finger tracking.
• Supports passive stylus input, glove operation, and hover finger tracking.

Applications

• Smartphones and mobile devices requiring high touch accuracy.
• Tablets and portable electronics with large screen sizes.
• Industrial control panels needing glove and stylus interaction.
• Automotive infotainment systems with in-cell touch integration.

Procurement Notes

Verify the specific ordering suffix BB to confirm inclusion of all advanced features like glove support and hover tracking. Ensure the package type matches the 70-ball BGA requirement. Confirm industrial temperature range availability if operating outside standard limits.

Selection Notes

Select this model for applications requiring comprehensive touch features including hover and glove support. Consider the 70-pin BGA package for higher pin count needs. Evaluate power consumption requirements as average power is approximately 12 mW.

Part Context

Part of the Cypress TrueTouch family designed for high-performance multi-touch applications. It integrates programmable logic and analog front-end capabilities into a single chip, reducing system complexity compared to discrete solutions.

Replacement Considerations

Check for updated revisions within the CYTMA568 series. Verify pin compatibility and feature set equivalence when considering alternative controllers from other manufacturers.

FAQ

What is the maximum number of simultaneous touch points supported?

The CYTMA568-70BUI58BB can report up to 10 simultaneous fingers.

Does this controller support passive stylus input?

Yes, it supports 1-mm passive stylus input with palm rejection.

What communication interfaces are available?

It supports I2C slave at standard bit rates up to 3.4 Mbps and SPI slave up to 8 Mbps.