STMicroelectronics X-NUCLEO-OUT13A1

Overview

X-NUCLEO-OUT13A1 from STMicroelectronics is an industrial digital output expansion board for STM32 Nucleo development platforms, built around the ISO808-1 octal high-side smart power switch. It delivers galvanically isolated 1 A per channel switching (9.2–36 V process side), supports direct and synchronous control modes (jitter < 20 µs and < 6 µs), and integrates overload, overtemperature, loss-of-ground, and undervoltage protections - enabling robust evaluation of solid-state relay behavior in PLC I/O modules.

For engineers reviewing the X-NUCLEO-OUT13A1 datasheet, X-NUCLEO-OUT13A1 pinout, X-NUCLEO-OUT13A1 application, or X-NUCLEO-OUT13A1 equivalent, this board serves as a validated interface between STM32 GPIOs and industrial 1.0 A inductive loads, with Arduino® UNO R3 and ST Morpho connector compatibility, dual-supply reverse polarity protection, and real-time LED diagnostics for output status, enable signal, and fault conditions.

Technical Context

The board implements the ISO808-1's embedded 2 kV_RMS galvanic isolation to decouple logic-side microcontroller signals from high-voltage process-side loads. Its dual control architecture supports both direct GPIO-driven mode (jitter < 20 µs) and synchronous clock-aligned mode (jitter < 6 µs), enabling precise timing-critical actuation in motion control and safety-rated outputs.

Process-side supply is configurable via jumpers J9/J10 to extend operating range from 9.2 V (J10 closed) to 36 V (J9 open), while logic-side accepts 3.3 V or 5 V (via IOREF or external 5 V). All eight channels feature fast decay circuitry for inductive load management and integrated protections including thermal shutdown, current limiting, and loss-of-ground detection.

Key Specifications

Availability

X-NUCLEO-OUT13A1 is available at Aetrix Electronics and suitable for industrial programmable logic controller (PLC) I/O module development, STM32-based motion control system prototyping, and factory automation digital output validation requiring stable component supply and RoHS/CE-compliant evaluation hardware.

Supply support for X-NUCLEO-OUT13A1 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

STMicroelectronics is a global semiconductor leader specializing in microcontrollers, power management, analog, and industrial ICs, with deep expertise in smart power switching and industrial interface solutions.

This board belongs to ST's X-NUCLEO ecosystem of STM32 Nucleo expansion boards, designed specifically to accelerate evaluation and integration of intelligent power switches (IPS) into industrial digital output systems - bridging MCU firmware development with real-world load-driving requirements.

FAQ

Which STM32 Nucleo boards are directly compatible with X-NUCLEO-OUT13A1?

The X-NUCLEO-OUT13A1 is mechanically and electrically compatible with NUCLEO-F401RE and NUCLEO-G431RB development boards. It connects via Arduino® UNO R3 and ST Morpho headers, using GPIO pins PB10 (OUT_EN), PA5 (SYNCH), and PA0–PA7 (IN1–IN8) for full functional control without additional level-shifting or wiring.

How does the galvanic isolation on this board protect the host MCU?

The ISO808-1 provides 2 kV_RMS reinforced galvanic isolation between logic-side control signals and process-side 9.2–36 V loads. This prevents ground loops, voltage transients, and fault currents from propagating back to the STM32 MCU, eliminating risk of damage during inductive load switching or field wiring faults.

What jumper configurations enable extended process-side voltage range?

Closing J10 and opening J9 sets the process-side supply to 9.2 V minimum; opening J10 and closing J9 configures it for up to 33 V; full 36 V operation requires J10 open and J9 open. These settings adjust internal resistive dividers and enable safe operation across the ISO808-1's rated 9.2–36 V range.

Can X-NUCLEO-OUT13A1 be stacked with other X-NUCLEO expansion boards?

Yes - the board supports stacking with other X-NUCLEO boards (e.g., X-NUCLEO-IKS01A3, X-NUCLEO-PLC01A1) using standard ST stacking headers. Signal integrity is maintained through dedicated routing, and power sequencing is managed via shared VCC and GND rails, enabling multi-function industrial I/O system evaluation.