STM32L100R8T6A

STM32L100R8T6A is an ultra‑low‑power 32‑bit microcontroller from STMicroelectronics, part of the STM32L1 family. It targets battery-powered and energy‑constrained applications, balancing performance and efficiency.
Key points:
- Core: ARM Cortex‑M3, typically up to tens of MHz, optimized for low power.
- Memory: on‑chip Flash and RAM (size varies by part).
- Voltage range: 1.65–3.6 V, suitable for coin cells and rechargeable operation.
- Power features: multiple low‑power modes (Sleep, Stop, Standby) with fast wakeup and peripheral clock gating.
- Peripherals: GPIO, multiple timers, ADC(s), DAC, comparators, RTC; serial interfaces (USART/UART, I2C, SPI); optional analog features.
- Packaging: available in several packages to suit compact or dense designs.
- Development: supported by STM32CubeIDE/CubeMX with HAL/LL libraries and example projects.
Use cases: wearables, sensor nodes, IoT edge devices, portable instruments. For exact memory, package options, and features, consult the datasheet.

There isn’t an exact 1:1 equivalent outside ST due to its unique peripheral mix and package. The closest substitutes are other STM32L1/L0 devices within the same memory range and with similar peripherals. For a precise cross-reference, use ST’s Product Selector or Cross-Reference tool to locate pin‑compatible options that meet your memory and peripheral needs; or share your requirements and I’ll suggest stand-ins.

STM32L100R8T6A (STMicroelectronics) – key features:
- 32-bit ARM Cortex-M3 core, up to 32 MHz
- Ultra-low-power with multiple run/stop/standby modes
- Memory (variant-dependent): up to 128 KB Flash and up to 16 KB RAM
- Analog peripherals: 12-bit ADCs, comparators, and/or op-amps
- Timers: multiple general-purpose timers and PWM outputs
- Communications: USART/UART, SPI, I2C
- DMA controller and CRC unit
- Real-Time Clock (RTC) and independent watchdog
- Broad I/O capability with many GPIOs
- Operating voltage typically 1.8–3.6 V
- Package: 128-pin LQFP (R8) family variant (exact packaging may vary)
Note: exact Flash/RAM counts and available peripherals can vary by specific device variant and package.

- Pin count: 48 pins (LQFP-48, package code T6)
- Function: 32-bit low-power microcontroller (STM32L0 series) based on ARM Cortex-M0+, with 8 KB flash (R8) for embedded control applications.

- Manufacturer: STMicroelectronics (ST).
- What kind of company: A multinational electronics and semiconductor company that designs, develops, manufactures, and markets microcontrollers, sensors, power devices, and other semiconductor products worldwide.

Low‑power MCU suitable for battery-powered and portable devices. Common application areas: wearables and medical sensors; portable data loggers and meters; environmental/industrial sensing and remote monitoring; IoT/smart‑home devices; USB peripherals and LCD-based HMIs; and compact motor/actuator control in consumer electronics.

LQFP-64 package (10×10 mm, 0.5 mm pitch).