Infineon Technologies S6J311EHBCSE20000

Overview

S6J311EHBCSE20000 from Infineon Technologies (formerly Cypress) is a 32-bit automotive-grade microcontroller based on the Arm® Cortex®-R5 CPU core, featuring 4096 KB + 64 KB program flash, 256 KB system SRAM, and dual CAN-FD controllers. It operates at up to 144 MHz, integrates hardware/software watchdogs, RTC with CR clock calibration, and supports LIN 2.1 and 22-channel multi-function serial interfaces for in-vehicle body control modules.

For engineers reviewing the S6J311EHBCSE20000 datasheet, S6J311EHBCSE20000 pinout, S6J311EHBCSE20000 application, or S6J311EHBCSE20000 equivalent, key selection criteria include its 144 MHz Cortex-R5 real-time performance, dual CAN-FD (1 Mbps, 192 Rx buffers/channel), 12-bit dual A/D converters (64 total channels), ECC-protected TCM ports, and LEP176 package compatibility with automotive ASIL-B functional safety requirements.

Technical Context

The S6J311EHBCSE20000 implements a dual-issue superscalar 8-stage Cortex-R5 core with Thumb-2 instruction set, MPU (16 regions), and SEC-DED ECC on TCM ports. It uses a 55 nm CMOS process and runs from a single 5 V supply, internally generating 1.2 V for core logic.

Its peripheral subsystem includes two independent CAN-FD controllers compliant with ISO 11898-1:2015 (v3.2.0), 22 configurable serial channels (UART/LIN/I²C/CSIO), and a 30-channel base timer supporting PWM, PPG, PWC, and reload modes - all synchronized to a 4 MHz main oscillator or calibrated 100 kHz CR clock.

Key Specifications

Pinout & Package

Package: LEP176 - 176-pin low-profile quad flat package with exposed thermal pad, designed for automotive under-hood applications requiring high thermal reliability and mechanical robustness.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R7F7016883AFP#AA0 and SPC58EC80E3, the S6J311EHBCSE20000 uniquely combines dual CAN-FD, hardware SHE, and CR clock calibration in a single LEP176 package - enabling compact, ASIL-B-compliant gateway and body controller designs without external timing or security components.

Availability

S6J311EHBCSE20000 is available at Aetrix Electronics and suitable for automotive body control modules, door module controllers, roof module controllers, and smart junction boxes requiring stable component supply across extended vehicle lifecycles.

Supply support for S6J311EHBCSE20000 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 systems, automotive MCUs, and security solutions for industrial and transportation markets.

The TRAVEO™ T1G family - including the S6J311EHBCSE20000 - was developed to deliver scalable, ASIL-B-capable microcontrollers for automotive body electronics, integrating real-time control, functional safety, and embedded security in a single die.

FAQ

What is the maximum operating temperature range for the S6J311EHBCSE20000?

The S6J311EHBCSE20000 is qualified for operation from -40°C to +125°C ambient temperature, meeting AEC-Q100 Grade 2 requirements for under-hood automotive applications. Its LEP176 package includes an exposed thermal pad to enhance heat dissipation in sealed enclosures.

Does the S6J311EHBCSE20000 support JTAG debugging in production environments?

Yes - the device supports IEEE 1149.1 JTAG boundary scan via dedicated TCK/TMS/TDI/TDO pins. Debug access can be permanently disabled via Flash security fuse to prevent unauthorized firmware extraction in deployed ECUs.

How does the CR oscillator calibration function improve RTC accuracy?

The CR oscillator calibration adjusts the RTC prescaler dynamically using the ratio between the 4 MHz main crystal and the 100 kHz CR clock. This compensates for temperature-induced drift, achieving ±1.5 minutes/month RTC accuracy without external calibration components or factory trimming.

Can the S6J311EHBCSE20000 operate without an external crystal?

Yes - it can run entirely from the internal 100 kHz or 4 MHz CR oscillators. However, CAN-FD bit timing and high-precision real-time control require the 4 MHz crystal for guaranteed timing compliance; CR-only mode is limited to standby, diagnostics, or non-timing-critical functions.