STMicroelectronics NUCLEO-8L152R8

Overview

NUCLEO-8L152R8 from STMicroelectronics is an STM8L152R8T6-based Nucleo-64 development board in LQFP64 package, featuring 64 Kbytes Flash, ultra-low-power operation, integrated ST-LINK/V2-1 debugger, Arduino Uno V3 and ST morpho expansion headers, and a 32.768 kHz LSE crystal - used for rapid prototyping of battery-powered sensor nodes and energy-harvesting applications.

For engineers reviewing the NUCLEO-8L152R8 datasheet, NUCLEO-8L152R8 pinout, NUCLEO-8L152R8 application, or NUCLEO-8L152R8 equivalent, key selection considerations include on-board SWIM debug interface compatibility, STM8L152R8T6's 1.65–3.6 V supply range, 32.768 kHz RTC clock source, and Arduino/morpho header signal mapping for peripheral shield integration.

Technical Context

The NUCLEO-8L152R8 implements the STM8L152R8T6 microcontroller with 64 Kbytes of Flash, 2 Kbytes of RAM, and ultra-low-power modes (down to 350 nA in HALT mode). It integrates a 32.768 kHz low-speed external (LSE) crystal oscillator dedicated to real-time clock functionality - a feature absent on the NUCLEO-8S208RB variant.

Board-level resources include dual push-buttons (USER and RESET), four LEDs (LD1–LD4), flexible power options (USB VBUS, 3.3 V, 5 V, or 7–12 V external), and native USB re-enumeration supporting Virtual COM port, mass storage, and debug interfaces via the embedded ST-LINK/V2-1.

Key Specifications

Availability

NUCLEO-8L152R8 is available at Aetrix Electronics and suitable for ultra-low-power sensor node development, portable medical device prototyping, and industrial IoT edge controller design requiring stable component supply and long-term toolchain continuity.

Supply support for NUCLEO-8L152R8 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 headquartered in Geneva, designing and manufacturing microcontrollers, analog ICs, power devices, and sensors for industrial, automotive, and consumer markets.

The STM8 Nucleo-64 platform targets rapid evaluation and firmware development for STM8L ultra-low-power MCUs - emphasizing energy efficiency, ease of peripheral integration, and seamless IDE interoperability across STVD, IAR, and Cosmic toolchains.

FAQ

Does NUCLEO-8L152R8 support SWIM debugging without additional hardware?

Yes. The board integrates ST-LINK/V2-1 with native SWIM interface, enabling full programming and debugging of the STM8L152R8T6 MCU over a single USB Micro-B connection - no external debugger or adapter required. SWIM operates at standard 3.3 V logic levels and supports breakpoint, step-through, and memory inspection functions.

What is the purpose of the 32.768 kHz crystal on this board?

The 32.768 kHz LSE crystal is dedicated to the STM8L152R8T6's real-time clock (RTC) peripheral, enabling accurate timekeeping, calendar functions, and wake-up from ultra-low-power HALT mode. This crystal is factory-mounted and not present on non-L variants like the NUCLEO-8S208RB.

Can Arduino shields be used directly with NUCLEO-8L152R8?

Yes. The board features Arduino Uno V3-compatible pin layout (including 5 V-tolerant digital I/Os mapped to STM8L pins), allowing direct use of standard Arduino shields. Signal voltage levels are compatible with 3.3 V logic, and power is supplied via the 5 V or 3.3 V rails depending on shield requirements.

Which IDEs and toolchains are officially supported for NUCLEO-8L152R8 firmware development?

Officially supported environments include ST's free STVD-STM8 (with Cosmic C compiler), IAR Embedded Workbench for STM8, and Cosmic's free IDEA IDE. All support SWIM-based download/debug and integrate with STM8CubeMX-generated initialization code and peripheral libraries.