Infineon Technologies PSoC™ 4000T A Cortex®-M0+

The PSoC™ 4000T MCU has an Arm^® Cortex^®-M0+ CPU and feature Infineon’s 5th Generation high-performance CAPSENSE™ capacitive sensing subsystem. The industry leading capacitive sensing technology provides a 10x higher SNR performance with a 10x lower consumption than previous generations of CAPSENSE™. The new “Always-on” sensing technology offers ultra-low power consumption in both active and standby modes, enabling battery life extension.

Key features

• 32-bit MCU subsystem
• 48 MHz Arm^® Cortex^®-M0+
• Up to 64 KB Flash and 8 KB SRAM
• MSC (Multi-Sense Convertor) with 5th Generation CAPSENSE™

Additional features

• “Always-on” sensing enabled ultra-low power technology
• Reliable operation under harsh conditions, including wet and high moisture
• Supports self-cap and mutual-cap sensing technologies
• Supports up to 16 sensors

Programmable Digital Blocks

• Two 16-bit timer/counter/pulse-width modulator (TCPWM) blocks
• Two serial communication blocks (SCBs) that are configurable as I2C, SPI, or UART
   

Benefits

• 5th Generation CAPSENSE™ with 10x higher SNR performance improvement
• 10x lower power consumption over the previous generation
• Provides a migration path for PSoC™ 4000 and PSoC™ 4000S based designs with performance enhancements

Applications

• Wearables
• Hearables
• Smart home devices
• Other consumer applications

Available tools

CY8CKIT-040T

The CY8CKIT-040T evaluation kit was designed to demonstrate the key capabilities brought by the PSoC™ 4000T products:

1. Superior touch-sensing performance with fifth-generation CAPSENSE™ technologyBest-in-class sensitivity, SNR, and immunity to harsh environmental conditions such as temperature and moisture.
2. Ultra-low-power capability based on “Always-On” sensingAbility to obtain power numbers as low as 3.6 μA in the Wake-On-Touch mode and 74 μA in Active mode (see CE235111 for the scan conditions for achieving this), making it ideal for battery-operated wearable devices.
3. Superior liquid toleranceThe kit can be dipped into liquids such as soap water, seawater, and mineral water up to the immersible line or sprayed with liquid droplets without reporting any false touches (demonstrated in the CE234752 code example).
    

A touchpad with a proximity sensor emulates a wearable screen with a bezel around it. Liquid tolerance on the touchpad is showcased in the CE234752, even with this loop grounded.

See the AN85951 - PSoC™ 4 and PSoC™ 6 MCU CAPSENSE™ design guide for details of the features of the fifth generation CAPSENSE™ - MSC-LP.

Board features:

• A PSoC™ 4000T device
• An onboard programmer/debugger (KitProg3)
• A capacitive button
• A capacitive proximity sensor
• A capacitive touchpad
• User LEDs (both serial RGB and single-color LEDs)
   

Kit contents:

• PSoC™ 4000T CAPSENSE™ evaluation board with enclosure
• USB Type-A to Micro-B cable
• Water dropper
• Quick start guide
   

OPN: CY8CKIT-040T, SP005935881