SX8652IWLTRT

Overview

The SX8652IWLTRT is a low-power touchscreen controller for 4-wire and 5-wire resistive panels. It features a 12-bit SAR ADC operating at up to 74k SPS, providing coordinate throughput of 5000 coordinates/second with averaging. The device operates on a single 1.65V to 3.7V supply, consuming 23µA at 1.8V during active operation and less than 1µA in shutdown mode. It includes integrated preprocessing algorithms to reduce host loading and offers robust ±15kV HBM ESD protection on touch interface pins.

Feature Summary

• 12-bit SAR ADC with 74k SPS conversion speed
• Integrated data averaging to suppress noise and reduce host activity
• Four programmable modes: Manual, Automatic, Pen Detect, and Pen Trigger
• On-chip ESD protection rated at ±15kV HBM and ±15kV Contact Discharge

Applications

• PDAs and portable instruments
• Point-of-sales terminals
• Touch-screen monitors

Procurement Notes

Verify the package type matches the required design constraints. The IWL suffix indicates the 14-lead DFN (4.0 mm x 3.0 mm) package variant. Confirm RoHS compliance status if required by specific regional regulations. Ensure the ordering quantity aligns with standard reel sizes.

Selection Notes

Select this component for applications requiring minimal power consumption in battery-operated devices. The integrated preprocessing block reduces CPU overhead compared to controllers lacking on-chip filtering. Verify that the host system supports the SPI interface timing requirements, specifically the clock frequency limits and setup times defined in the datasheet.

Part Context

This part belongs to the SX8652 family of resistive touchscreen controllers. The IWL suffix specifically denotes the 14-lead DFN package version, distinct from the WLCSP option. It serves as a direct replacement for legacy controllers in space-constrained mobile and industrial interfaces.

Replacement Considerations

Check pin compatibility when substituting older touchscreen controllers. Verify that the new controller's SPI register map and command set are compatible with existing firmware drivers to minimize software adaptation efforts.