PSOC™ 4100S Plus 256 KB

Combination of analog & digital peripherals with capacitive sensing for system control and HMI

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Overview

The PSOC™ 4100S plus 256 KB microcontroller family elevates system control with a 256 KB flash size, fourth-gen CAPSENSE™, and intelligent analog blocks. Ideal for demanding applications like industrial control, IoT, and home appliances, it offers flexibility, scalability, and high performance. The PSOC™ 4100S plus 256 KB family offers a seamless upgrade path from the PSOC™ 4100S plus products, providing additional memory option.

Key Features

  • 48 MHz Arm® Cortex®-M0+ CPU, DMA
  • Up to 256 KB flash, up to 32 KB SRAM
  • CAPSENSE™ with water tolerance
  • 12-bit 1Msps SAR ADC
  • Single slope 10-bit ADC
  • 2x Op-Amps
  • Two current DACs (IDACs)
  • Two low-power comparators
  • Five (SCBs) - I2C, SPI, UART
  • Eight 16-bit TCPWM blocks
  • Operating voltage: 1.71 V to 5.5 V
  • Up to 54 I/O with Smart I/O

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PSOC™ 4100S Plus 256 KB products

About

System control & CAPSENSE™ with 256K flash

PSOC™ 4100S Plus 256 KB family highlights:

- 256 KB Flash: More memory for flexible, scalable designs

- 4th gen CAPSENSE™: Advanced capacitive touch sensing

- Programmable analog: High-performance ADCs, opamps (with comparator mode), low-power comparators

- Arm® Cortex®-M0+ CPU: Efficient processing for demanding applications

- Versatile peripherals: Standard communication and timing features

- Ideal for: Industrial control, IoT devices, home appliances, HMI

Why choose PSOC™ 4100S Plus 256 KB?  

High performance, rich features, and adaptability—perfect for modern, mixed-signal embedded systems.

Combination of analog peripherals
  • Two opamps with reconfigurable high-drive external and high-bandwidth internal drive and comparator modes and ADC input buffering capability. Opamps can operate in deep sleep low-power mode 
  • 12-bit 1-Msps SAR ADC with differential and single-ended modes, and channel sequencer with signal averaging
  • Single-slope 10-bit ADC function provided by a capacitance sensing block
  • Two current DACs (IDACs) for general-purpose or capacitive sensing applications on any pin
  • Two low-power comparators that operate in Deep Sleep low-power mode
4th gen CAPSENSE™

PSOC™ 4100S plus 256 KB  CAPSENSE™ can be used to build a self or mututal capacitive sensing applications. 

Infineon’s 4th generation CAPSENSE™ offers improved sensitivity, faster response times, and enhanced noise immunity compared to previous generations. It supports advanced features like proximity sensing and operation in harsh environments, enabling more reliable and robust touch interfaces for a wider range of applications. Additionally, it provides lower power consumption, making it ideal for battery-powered and always-on devices.

In the PSOC™ 4100S Plus 256 KB MCU, CAPSENSE™ is supported through a Sigma-Delta (CSD) block that can be connected to any pins through an analog multiplex bus, via analog switches. CAPSENSE™ function can be provided on any available pin or group of pins in a system under software control.

AN85951 - CAPSENSE™ design guide
AN64846 - Getting started with CAPSENSE™
Getting started
ModusToolbox™ software

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, and 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

ModusToolbox™ software
GitHub-hosted repositories
PSOC™ 4 Developer Community

Infineon Developer Community is available 24x7 for you to connect and network with engineers across the globe. Get help from Infineon support engineers and members to solve your design challenges anytime, from anywhere, on any topic, and in your preferred language.

Ask the PSOC™ 4 community

System control & CAPSENSE™ with 256K flash

PSOC™ 4100S Plus 256 KB family highlights:

- 256 KB Flash: More memory for flexible, scalable designs

- 4th gen CAPSENSE™: Advanced capacitive touch sensing

- Programmable analog: High-performance ADCs, opamps (with comparator mode), low-power comparators

- Arm® Cortex®-M0+ CPU: Efficient processing for demanding applications

- Versatile peripherals: Standard communication and timing features

- Ideal for: Industrial control, IoT devices, home appliances, HMI

Why choose PSOC™ 4100S Plus 256 KB?  

High performance, rich features, and adaptability—perfect for modern, mixed-signal embedded systems.

Combination of analog peripherals
  • Two opamps with reconfigurable high-drive external and high-bandwidth internal drive and comparator modes and ADC input buffering capability. Opamps can operate in deep sleep low-power mode 
  • 12-bit 1-Msps SAR ADC with differential and single-ended modes, and channel sequencer with signal averaging
  • Single-slope 10-bit ADC function provided by a capacitance sensing block
  • Two current DACs (IDACs) for general-purpose or capacitive sensing applications on any pin
  • Two low-power comparators that operate in Deep Sleep low-power mode

4th gen CAPSENSE™

PSOC™ 4100S plus 256 KB  CAPSENSE™ can be used to build a self or mututal capacitive sensing applications. 

Infineon’s 4th generation CAPSENSE™ offers improved sensitivity, faster response times, and enhanced noise immunity compared to previous generations. It supports advanced features like proximity sensing and operation in harsh environments, enabling more reliable and robust touch interfaces for a wider range of applications. Additionally, it provides lower power consumption, making it ideal for battery-powered and always-on devices.

In the PSOC™ 4100S Plus 256 KB MCU, CAPSENSE™ is supported through a Sigma-Delta (CSD) block that can be connected to any pins through an analog multiplex bus, via analog switches. CAPSENSE™ function can be provided on any available pin or group of pins in a system under software control.

AN85951 - CAPSENSE™ design guide
AN64846 - Getting started with CAPSENSE™

Getting started

ModusToolbox™ software

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, and 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

ModusToolbox™ software
GitHub-hosted repositories

PSOC™ 4 Developer Community

Infineon Developer Community is available 24x7 for you to connect and network with engineers across the globe. Get help from Infineon support engineers and members to solve your design challenges anytime, from anywhere, on any topic, and in your preferred language.

Ask the PSOC™ 4 community

Documents

Documents

Design resources

Developer community

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