Boost your electrification designs with ASIL-D MCU featuring high-resolution PWM and advanced analog
Boost your electrification designs with ASIL-D MCU featuring high-resolution PWM and advanced analog
Designed to meet the enhanced digital control and high-performance analog requirements for the latest wide bandgap power technologies (SiC and GaN), Stellar SR5 E1 actuation MCUs are ideal for power conversion applications including on-board chargers and DC/DC converters as well as advanced motor control (traction inverter) applications.
The first microcontroller in the series, the SR5E1E7 is available in eLQFP176 package.

SR5E1E7: SR5 E1 line of Stellar electrification MCUs
SR5E1E7: SR5 E1 line of Stellar electrification MCUs
- AEC-Q100 qualified
- 2x split-lock Arm® Cortex®‑M7 cores
- 2-Mbyte on-chip flash memory
- High resolution timers up to 102ps resolution
- 12-bit SAR ADC with 2.5 MSPS sampling rate
Designed for a wide range of applications
Stellar E ecosystem overview

Standalone evaluation board for the Stellar E1 MCUs in a 176-pin QFP package
Standalone evaluation board for the Stellar E1 MCUs in a 176-pin QFP package
Ready-to-use, socket-based solution lets developers quickly start prototyping automotive applications including OBC, DCDC, motor control and many more.
Easily access high-resolution timers, DAC, SAR-ADC and SD-ADC connectors to evaluate the SR5 E1's control loop performance as well as FD-CAN, LIN, UART, I²C and SPI standard communication interfaces in addition to user LED and control buttons.

Integrated Development Environment for embedded SW development on Stellar E1 MCUs
Integrated Development Environment for embedded SW development on Stellar E1 MCUs
ST’s StellarStudio provides a complete framework to design, build, and deploy embedded applications. With its user-friendly graphical user interface (GUI), engineers can quickly develop embedded software using predefined software components. An application wizard module automatically resolves dependencies with error-free syntax.
StellarStudio is available for free download and includes real-life application example code.

Cost-effective USB-to-JTAG debugger and programmer for quickly prototyping automotive applications
Cost-effective USB-to-JTAG debugger and programmer for quickly prototyping automotive applications
Supporting all SPC5 and Stellar automotive MCUs, this compact in-circuit debugger/programmer reduces development cycles thanks to easy-to-use hardware and software fully integrated into StellarStudio and SPC5-STUDIO IDEs. StellarLINK provides an easy connection to our automotive MCUs and evaluation boards via the JTAG interface and comes with a virtual COM port interface for communicating with the MCU through a UART.StellarStudio is available for free download and includes real-life application example code.
You might also be interested in...
SR5E1 line - 7 KW EV/HEV on-board-charger reference design
Quickly get started with out 7-kW OBC reference design (STDES-7KWOBC) based on Stellar SR5E1 automotive MCUs. A modularized design, it places a high priority on both efficiency and power density. It also shows how it is possible to manage efficiently the two stages PFC and LLC either with two separate MCUs or a single MCU thanks to the innovative timer capability and high performing ADC, comparator and high-resolution timer.
SR5 E1 line - Resolver sensor in electric motor control demo
This application note helps developers calculate electric motor speed and angle values for electric vehicles where sensing and/or controlling speed and rotor position are a fundamental requirement. It describes in detail how to configure Stellar E1 MCU peripherals for speed and rotor position calculation, using a resolver sensor, implemented in the SR5 E1 motor control tool kit.
StellarStudioAI
Artificial Intelligence (AI) plug-in for StellarStudio helps create innovative edge AI automotive solutions
with much lower data transmission loads, new application capabilities and increased efficiency