PCF8885TS/1,118

Overview

The PCF8885TS/1,118 is a capacitive 8-channel touch and proximity sensor interface manufactured by NXP Semiconductors. It utilizes a patented EDISEN method to detect static capacitance changes on remote sensing plates connected via coaxial cable. The device features continuous auto-calibration to compensate for environmental drift and supports matrix arrangements with interrupt generation only upon simultaneous activation of two channels. It operates within a voltage range of 2.5 V to 5.5 V and includes an I²C Fast-mode Plus (Fm+) compatible interface with two addresses. The component is housed in a TSSOP28 package and functions across an operating temperature range of -40 °C to +85 °C.

Feature Summary

• Capacitive sensing with 8 independent channels and support for remote sensing plates
• Continuous auto-calibration using digital processing to maintain stability
• Configurable switching modes including direct and latching operations
• I²C interface with interrupt signaling capabilities and cascading support

Applications

• Replacing mechanical switches in hermetically sealed environments
• Audio control interfaces for volume and channel adjustment
• Vandal-proof switches for public or industrial use
• White goods control panels and home automation systems

Procurement Notes

Verify the specific ordering suffix /1,118 corresponds to the tape and reel delivery form as documented in the official datasheet. Confirm that the TSSOP28 package variant matches the required PCB footprint. Ensure compatibility with the system's I²C bus voltage levels and check for any end-of-life status updates from the manufacturer prior to finalizing procurement plans.

Selection Notes

Select this component when an 8-channel capacitive solution with remote sensing capability is required. Consider the low-power sleep mode if battery operation is a priority. Verify that the TSSOP28 package dimensions fit the design constraints. Evaluate the need for matrix arrangement features if multiple sensors are arranged in a grid configuration.

Part Context

The PCF8885 series represents NXP's capacitive sensor interface family designed for robust touch detection. The TS suffix denotes the TSSOP28 plastic small outline package variant. This part integrates analog front-end processing with digital control logic to simplify system design for touch-sensitive applications requiring high reliability and low power consumption.

Replacement Considerations

Check for updated revisions of the PCF8885TS/1,118 or alternative packages within the same product family. Consult the manufacturer's obsolescence notices for potential lifecycle changes. No direct cross-model substitutes are confirmed in the provided documentation.