STMicroelectronics STM8L15LPBOARD

Overview

STM8L15LPBOARD from STMicroelectronics is a low-power demonstration board built around the STM8L15x 8-bit ultra-low-power MCU, featuring an integrated auto-measurement circuit for current consumption, SWIM debug interface, 32.768 kHz quartz crystal, LCD glass display, and dedicated function/wakeup buttons.

For engineers reviewing the STM8L15LPBOARD datasheet, STM8L15LPBOARD pinout, STM8L15LPBOARD application, or STM8L15LPBOARD equivalent, this board enables rapid validation of ultra-low-power sleep modes (Wait, Active-Halt, Low-power Halt), real-time current profiling across operating states, and hands-on evaluation of STM8L peripheral wake-up sources including RTC, GPIO, and comparator events.

Technical Context

The board implements the full STM8L15x low-power architecture, supporting six power modes with typical active-mode current down to 190 µA/MHz and sub-µA retention in Low-power Halt mode. It integrates hardware-level current sensing via shunt resistor and op-amp circuitry calibrated for direct µA–mA range measurement without external instrumentation.

SWIM (Single Wire Interface Module) provides non-intrusive debugging and programming access to the on-board STM8L15x MCU. The 32.768 kHz quartz feeds the RTC and LSE oscillator, enabling precise timekeeping and wake-up timing accuracy within ±20 ppm over –40°C to +85°C.

Key Specifications

Availability

STM8L15LPBOARD is available at Aetrix Electronics and suitable for ultra-low-power MCU evaluation, battery-operated sensor node prototyping, and energy harvesting system development requiring stable component supply and documented low-power behavior validation.

Supply support for STM8L15LPBOARD 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, Switzerland, designing and manufacturing microcontrollers, analog ICs, MEMS, power devices, and automotive semiconductors.

This board belongs to ST's STM8L ultra-low-power MCU ecosystem, developed specifically to accelerate design-in of battery-powered applications demanding sub-µA standby current, fast wake-up (<5 µs), and robust RTC functionality.

FAQ

Does STM8L15LPBOARD include the STM8L15x MCU pre-soldered?

Yes. The board features a pre-mounted STM8L152C6T6 MCU (48-pin LQFP package) with factory-programmed bootloader and default low-power demo firmware. No additional MCU purchase or soldering is required to begin evaluation.

Can the on-board current measurement circuit be used with external loads?

No. The auto-measurement circuit is hardwired to monitor only the STM8L15x MCU core and peripherals. External loads must be measured using an external multimeter or current probe connected between VDD and the target circuit's power input.

Is SWIM debugging supported with standard ST-LINK tools?

Yes. The board uses the standard SWIM interface pinout and is fully compatible with ST-LINK/V2 and ST-LINK/V2-1 debuggers. No adapter or level-shifting is needed - direct connection via 4-pin SWIM header enables full programming, breakpoint, and register inspection.

What LCD glass is fitted on STM8L15LPBOARD?

The board includes a custom 8-segment × 28-segment reflective LCD glass (part number not publicly disclosed by ST) driven directly by the STM8L15x's integrated LCD controller. Contrast is adjustable via onboard potentiometer; no external bias supply is required.