PSOC™ 4000T overview
Best in class low-power capacitive sensing solution with unsurpassed signal-to-noise ratio, liquid tolerance, and multi-sense capabilities coupled with industry leading reliability and robustness.
PSOC™ 4000T microcontrollers extend the PSOC™ 4 product family of Arm® Cortex®-M0+ based microcontrollers with advanced HMI capabilities. PSOC™ 4000T is equipped with Multi-Sense, a comprehensive sensing solution that integrates Infineon's 5th Generation CAPSENSE™, inductive sensing, and liquid level sensing.
Features
32-bit MCU subsystem
48-MHz Arm® Cortex®-M0+ CPU with single-cycle multiply
Up to 64 KB of flash with read accelerator
Up to 8 KB of SRAM
5th generation CAPSENSE™ technology
Self-capacitive sensing
Mutual capacitive sensing
Inductive sensing
Liquid level sensing
Hover touch
16 sensor inputs
Up to 16 self-capacitive inputs
Up to 64 mutual-capacitive inputs
Up to 8 inductive inputs
Up to 21 programmable pins
Two 16 bit-time/counter/pulse-width modulator (TCPWW) blocks
Two configurable serial communication blocks (SCBs) to support I2C, SPI or UART interface
Superior user experience: Proximity, capacitive Touch, capacitive Slider, Finger-tracking, hover touch, Metal-touch, Force-touch
High resolution liquid level detection, contactless stack up
Best-in-class signal-to-noise ratio
Operating Voltage: 1.71 V to 5.5 V
Deep sleep mode at 6 µA through "Always-on" sensing
Active touch detection and tracking at 200 µA (average)
Easily optimize the capacitive sensing design through Infineon-supplied middleware software
Includes board support packages (BSPs), peripheral driver library (PDL), and middleware such as CAPSENSE™
Block diagram

5th generation CAPSENSE™
Ultra-Low Power:
One of the industries’ first always-on touch sensing feature enables HMI operation with very low active and standby power consumption enabling longer battery life on battery powered products such as wearables and hearables.
Signal-to-Noise Ratio:
Best in class signal-to-noise ratio improves reliability, provides a seamless user experience, faster refresh rate, and optimized average power consumption.
Liquid Tolerance:
Reliable operation under wet and high moisture conditions prevents false activation from a variety of liquids, including highly conductive salty water.
Multi-Sense:
Supports combination of multiple sensing methods (self, mutual) and a variety of interfaces (touch, slider, force-touch, proximity, finger-tracking) to enable a superior user experience.
Advanced Proximity Interface:
Long distance proximity detection up to 30 cm. Directional proximity with configurable gestures.
ModusToolbox™ software
is a collection of development tools and embedded resources supporting Infineon devices.
The ModusToolbox™ Tools Package includes desktop applications that enable the creation of new embedded projects, managing software resources, configuring device peripherals and middleware, and multiple IDE options for compiling, programming, and debugging. Windows, Linux & MacOS are supported.
These ModusToolbox™ applications utilize an extensive collection of GitHub-hosted repositories comprised of code examples, board support packages, and middleware from Infineon and partners. Middleware libraries include CAPSENSE™ HMI, connectivity, machine learning, graphics, security, and more.
ModusToolbox™ Software currently supports application development within the following product families:
32-bit PSOC™ Arm® Cortex® MCUs
32-bit XMC™ Industrial MCUs Arm® Cortex®-M
32-bit TRAVEO™ T2G Arm® Cortex® MCUs
AIROC™ connected MCUs
AIROC™ Bluetooth®
USB-C power delivery controllers
Wireless charging ICs
Drivers, middleware, and code examples are available for many Infineon products, including:
AIROC™ Wi-Fi + Bluetooth®
OPTIGA™ trust
XENSIV™ sensors
Getting started
GET the PSOC™ 4000T CAPSENSE™kit(CY8CPROTO-040T) to kickstart your capacitive sensing project.
GET the PSOC™ 4000T Multi-Sense kit (CY8CPROTO-040T-MS) to develop your next inductive sensing, liquid level sensing or hover touch application.
DOWNLOADModusToolbox™ software
READ our application note: AN79953 getting started with PSOC™ 4
LEARN how to use CAPSENSE™ in your PSOC™ 4 design with our AN85951 application note
ACHIEVE the lowest power capacitive sensing with our AN234231 application note