STMicroelectronics STM8L101F2P6TR

Overview

STM8L101F2P6TR from STMicroelectronics is an 8-bit ultra-low-power microcontroller featuring 4 Kbytes Flash, 1.5 Kbytes RAM, and integrated peripherals including two 16-bit timers, USART, SPI, I²C, two comparators, and infrared remote control interface. It operates from 1.65 V to 3.6 V across –40 °C to +85 °C, with dynamic run current of 150 µA/MHz - ideal for battery-powered sensor nodes and portable medical devices.

For engineers reviewing the STM8L101F2P6TR datasheet, STM8L101F2P6TR pinout, STM8L101F2P6TR application, or STM8L101F2P6TR equivalent, key selection criteria include ultra-low active/standby current (150 µA/MHz Run, 0.3 µA Halt), 20-pin TSSOP package compatibility, IR modulation capability, and SWIM-based debugging support in space-constrained embedded designs.

Technical Context

The STM8L101F2P6TR implements a CISC STM8 core delivering up to 16 MIPS at 16 MHz, with dual clock domains: 16 MHz internal RC (HSI) for performance and 38 kHz low-power RC (LSI) for watchdog and auto-wakeup unit (AWU) timing. Its nested interrupt controller supports 29 external sources with software-configurable priority.

Memory architecture includes ECC-protected Flash with in-application programming, 2 Kbytes of emulated data EEPROM, and 1.5 Kbytes of static RAM. Power management integrates three low-power modes (Wait, Active-halt, Halt), POR/PDR with ultra-low quiescent current, and programmable I/O pull-ups with high sink capability (up to 20 mA on PA0 for LED drive).

Key Specifications

Pinout & Package

STM8L101F2P6TR is housed in a 20-pin Thin Shrink Small Outline Package (TSSOP20), measuring 6.5 mm × 4.4 mm with 0.65 mm lead pitch. The package supports reflow soldering and provides mechanical robustness for compact PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power 8-bit microcontroller applications.

Compared with STM8L051F3P6TR, the STM8L101F2P6TR trades Flash capacity for IR hardware acceleration; versus EFM8LB12F32ES1-B-QFP24R, it offers lower BOM cost, smaller footprint, and simpler toolchain - critical for cost-sensitive, size-constrained remote control designs.

Availability

STM8L101F2P6TR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical devices, smart home remotes, and industrial status indicators requiring stable component supply and long-term production continuity.

Supply support for STM8L101F2P6TR 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, power management ICs, sensors, and automotive semiconductors since 1987.

The STM8L series targets ultra-low-power embedded applications where battery life, small form factor, and rapid time-to-market outweigh the need for 32-bit performance - emphasizing integrated peripherals, robust Flash reliability, and minimal external component count.

FAQ

What is the maximum operating frequency of the STM8L101F2P6TR?

The STM8L101F2P6TR runs at up to 16 MHz using its internal 16 MHz RC oscillator (HSI), with typical accuracy of ±1% over temperature and voltage. External crystal support is not provided - all timing derives from calibrated internal oscillators, simplifying BOM and layout.

Does the STM8L101F2P6TR support in-circuit programming after soldering?

Yes - the device features a hardware Single Wire Interface Module (SWIM) accessible via PD0, enabling full flash programming, erase, and debugging through a single pin without removing the MCU from the PCB. No bootloader code is required; ST-LINK/V2 or compatible programmers support this natively.

Can the STM8L101F2P6TR drive an infrared LED directly?

Yes - the PC3 pin provides dedicated hardware IR modulation output at 38 kHz, while PA0 delivers up to 20 mA sink current, allowing direct connection of standard IR LEDs without external transistors or current-limiting resistors beyond the series LED resistor.

Is there hardware support for EEPROM emulation on this MCU?

Yes - the STM8L101F2P6TR includes 2 Kbytes of dedicated data EEPROM memory with wear-leveling support via ST's official EEPROM emulation library. This memory is physically separate from program Flash and supports byte-write operations with guaranteed endurance of 300,000 cycles.