Infineon Technologies S6E1A12B0AGN2B000

Overview

S6E1A12B0AGN2B000 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M0+ microcontroller with 88 KB on-chip Flash, 6 KB SRAM, and integrated peripherals including UART/CSIO/I²C/LIN interfaces, 12-bit ADC (8 channels), RTC, QPRC, and dual watchdog timers. It operates up to 40 MHz, supports 2.7–5.5 V supply, and targets low-power embedded control in industrial sensors and motor drive subsystems.

For engineers reviewing the S6E1A12B0AGN2B000 datasheet, S6E1A12B0AGN2B000 pinout, S6E1A12B0AGN2B000 application, or S6E1A12B0AGN2B000 equivalent, key selection criteria include its FM0+ architecture compatibility, 48-pin LQFP package, LIN 2.1 support, 5 V-tolerant GPIO count (up to 37), and dual watchdog timer configuration for safety-critical firmware supervision.

Technical Context

The S6E1A12B0AGN2B000 implements the Arm Cortex-M0+ r0p1 core with NVIC supporting 32 peripheral interrupts and 4 priority levels, plus a 24-bit SysTick timer for RTOS integration. Its clock system includes five sources - main oscillator (4–40 MHz), sub-clock (32.768 kHz), two internal CR oscillators (4 MHz / 100 kHz), and main PLL - enabling flexible low-power mode transitions.

Peripheral integration includes three multi-function serial channels (each with 128-byte FIFO), a 16-bit quadrature position/revolution counter (QPRC) with configurable AIN/BIN/ZIN edge detection, and a real-time clock with leap-year correction and alarm interrupt capability across year/month/day/hour/minute granularity.

Key Specifications

Pinout & Package

Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S6E1B12B0AGN2B000, this part trades memory capacity for lower cost and smaller die size; compared with MB9BF516RPMC-G-SNE2, it delivers superior LIN integration and power efficiency at the expense of raw compute throughput - making it optimal for cost-sensitive, protocol-dense embedded nodes.

Availability

S6E1A12B0AGN2B000 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart sensor nodes, and energy metering subsystems requiring stable component supply and long-term lifecycle support.

Supply support for S6E1A12B0AGN2B000 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 AG is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global R&D and manufacturing infrastructure.

The S6E1A Series belongs to Infineon's FM0+ family of ultra-low-power 32-bit microcontrollers, designed specifically for cost-sensitive, battery-operated, and automotive-grade embedded control applications requiring integrated LIN, RTC, and robust fault detection.

FAQ

What is the maximum operating frequency and supported voltage range?

The S6E1A12B0AGN2B000 operates at up to 40 MHz with a supply voltage range of 2.7 V to 5.5 V. This wide range supports direct connection to both 3.3 V logic systems and legacy 5 V industrial rails without level shifters. The core and peripherals remain fully functional across the entire range, with specified timing margins verified per AC characteristics in Rev. *E datasheet Section 12.4.

Does this MCU support hardware LIN 2.1 without external transceivers?

Yes - the S6E1A12B0AGN2B000 integrates a full LIN 2.1 protocol engine with break field generation, sync field handling, and checksum validation. However, an external LIN transceiver (e.g., TLE7259-3GE) is still required for physical layer signaling on the bus; the MCU handles only the data-link layer processing.

How many I/O pins are 5 V tolerant, and which ones?

Twelve GPIO pins are 5 V tolerant: P00–P03, P10–P13, P20–P23. These are explicitly designated in Section 5 ("I/O Circuit Type") and Table 5-1 of the datasheet. Tolerance applies only when the pin is configured as input or high-impedance output; driving 5 V outputs is not supported.

What debug interface does it use, and what trace capability is available?

The device uses Serial Wire Debug (SW-DP) with SWDIO and SWCLK pins, supporting full JTAG-equivalent debugging. It also includes a 4 KB Micro Trace Buffer (MTB) for instruction trace without external probes - enabling cycle-accurate execution flow analysis in constrained memory environments, as documented in Section 22 of the Peripheral Manual.