Infineon Technologies S6E1C31D0AGN20000

Overview

S6E1C31D0AGN20000 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M0+ microcontroller with 128 KB Flash, 16 KB SRAM, and operation up to 40.8 MHz at 1.65–3.6 V. It integrates USB 2.0 (Host/Device), 6-channel MFS (configurable as UART/SPI/I²C/I²S), 12-bit 1-Msps ADC with 8-channel mux, and ultra-low-power modes including 0.6 µA deep standby. Used in battery-powered IoT sensors and smart home appliance controllers.

For engineers reviewing the S6E1C31D0AGN20000 datasheet, S6E1C31D0AGN20000 pinout, S6E1C31D0AGN20000 application, or S6E1C31D0AGN20000 equivalent, key selection criteria include USB host capability, 64-channel DSTC for DMA offload, IEC60730 Class B self-test support, and WLCSP/QFN/LQFP package flexibility for space-constrained designs.

Technical Context

The S6E1C31D0AGN20000 implements a single-core ARM Cortex-M0+ CPU with nested vectored interrupt controller (NVIC) supporting 24 peripheral interrupts plus NMI and four priority levels. Its clock system includes dual oscillators: 8 MHz high-speed CR (±1% typical) and 100 kHz low-speed CR, plus external crystal support (1–20 MHz main, 32.768 kHz sub).

Digital subsystem features include eight 16-bit base timers, one dual timer, one watch counter, and a descriptor-based transfer controller (DSTC) with 64 channels for autonomous peripheral-to-memory transfers. Analog integration comprises one 12-bit ADC with sample-and-hold, programmable gain, and hardware-triggered conversion sequencing.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (LQD064, 0.5 mm pitch), RoHS-compliant, body size 10 × 10 mm, exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32L431RCT6 and RA4M1, the S6E1C31D0AGN20000 delivers unique value in ultra-low-power USB host applications with integrated safety firmware and autonomous DMA - reducing BOM cost and certification risk in consumer and industrial edge devices.

Availability

S6E1C31D0AGN20000 is available at Aetrix Electronics and suitable for battery-powered IoT sensors, smart home appliance controllers, and industrial edge gateways requiring stable component supply across multi-year production cycles.

Supply support for S6E1C31D0AGN20000 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and security solutions with over 40 years of industrial reliability heritage.

The S6E1C Series belongs to Infineon's FM0+ ultra-low-power microcontroller family, designed specifically for cost-sensitive, energy-constrained embedded systems where sub-1 µA standby current and integrated USB connectivity are mandatory.

FAQ

What is the maximum operating frequency and voltage range for S6E1C31D0AGN20000?

The S6E1C31D0AGN20000 operates at up to 40.8 MHz across a supply voltage range of 1.65 V to 3.6 V. This range supports direct connection to single-cell Li-ion (3.0–3.6 V) or two-cell alkaline (2.4–3.2 V) batteries without regulation. The core voltage is internally regulated, and all I/Os are 5 V tolerant only when configured as inputs with external pull-ups.

Does S6E1C31D0AGN20000 support USB host functionality without external components?

Yes - the S6E1C31D0AGN20000 integrates a full-speed USB 2.0 PHY and controller capable of host mode operation. It requires only a 1.5 kΩ pull-up resistor on USB0_DP for device enumeration and standard USB-series resistors (27 Ω) on DP/DM lines. No external transceiver or level shifter is needed for basic HID or mass-storage class host applications.

How many ADC channels are accessible in the 64-pin LQFP package, and what is their resolution?

The 64-pin LQFP package exposes all 8 analog input channels (AN0–AN7) of the integrated 12-bit successive-approximation ADC. Each channel supports programmable sampling time, hardware trigger sources (timers, PWM), and automatic channel sequencing. Effective resolution remains 12 bits across the full 0–VDD range with ±1 LSB INL and DNL per datasheet specification.

Is IEC60730 Class B compliance supported out-of-the-box?

Yes - Infineon provides the AN205411 IEC60730 Class B Self-Test Library as production-ready firmware. It covers RAM March C test, Flash CRC check, CPU register verification, clock supervision, and ADC functional test - all validated per Annex H requirements. Integration requires linking the library and calling initialization/test functions; no hardware modification is needed.