STM32F105R8T6TR

STM32F105R8T6TR is STMicroelectronics’ 32-bit STM32F1 Connectivity Line MCU, powered by the ARM Cortex-M3 core and capable of up to about 72 MHz. It targets mid-range embedded applications needing USB connectivity and CAN networking, with a rich peripheral set (SPI, I2C, USART, ADCs, timers, DMA, etc.). Memory and I/O vary by subvariant; the R8 family typically provides up to 128 KB of Flash and tens of KB of RAM (exact values depend on the specific part). The suffixes T6/TR indicate a 64‑pin (LQFP) package with Tape & Reel packaging (TR). Development is supported by ST’s HAL/LL libraries and STM32CubeIDE/CODE headers, making it suitable for USB device/host, automotive CAN, and general embedded projects. For exact specs (clock, RAM, peripherals), consult the official datasheet for the precise variant.

Direct cross-vendor equivalents do not exist; the device is ST’s Connectivity line with USB/CAN. Closest ST equivalents are:
- STM32F105R8T6 (same silicon, standard package)
- STM32F107VCT6 (USB OTG FS + CAN, higher pin count)
Packaging variants: STM32F105R8T6TR is the tape-and-reel version of STM32F105R8T6. For exact pinout, check ST cross-ref or your distributor.

Key features of STM32F105R8T6TR (Connectivity Line, LQFP-64):
- 32‑bit ARM Cortex‑M3 core, up to 72 MHz CPU speed.
- Flash memory: 128 KB; RAM: ~20 KB (on-chip).
- USB OTG Full‑Speed interface.
- Ethernet MAC 10/100 with RMII interface (PHY external).
- CAN 2.0B controller.
- LCD‑TFT controller and FSMC external memory/interface for NOR/NAND/PSRAM and LCD.
- 12‑bit ADC with multiple channels (up to ~16) and up to 1 Msps.
- Rich serial peripherals: up to 4 USART/UART, multiple SPI/I2C (plus I2S).
- DMA controller with multiple channels (responsive for peripherals).
- Timers: advanced TIM1 plus general-purpose TIM2–TIM4, PWM outputs.
- Low-power modes: Sleep, Stop, Standby.
- Operating voltage: 2.0–3.6 V; temp range typically -40 to 85°C (industrial).
- Package: 64‑pin LQFP (T6), suitable for tape-and-reel.
- Boot ROM with built‑in bootloader and standard security/performance features.

- Pin count: 100 pins (LQFP-100, TR = tape-and-reel)
- Function: 32‑bit ARM Cortex‑M3 microcontroller (STM32F105 series, Connectivity line) with USB OTG FS and CAN interfaces for embedded applications.

- Manufacturer: STMicroelectronics (STMicroelectronics N.V.)
- What kind of company: A global semiconductor company (multinational) that designs and manufactures integrated circuits and electronic components, including microcontrollers (STM32 family), MEMS sensors, and power/analog devices. Headquarters in Plan-les-Ouates, Geneva, Switzerland.

STM32F105R8T6TR is part of the STM32F105/107 Connectivity line (USB OTG FS and CAN). Common application areas:
- Industrial automation and motor control interfaces
- Automotive body electronics (CAN networks, sensors)
- Building/home automation, smart meters, energy management
- Consumer electronics and USB peripherals (USB data/audio bridges)
- Medical instrumentation and portable diagnostic devices
- Embedded networking/gateways, data loggers, and HMI with LCDs/TFTs
Notes: leverages GPIO, timers, ADC/DAC, and PWM for versatile control and sensing in compact embedded systems.

LQFP-64: 64-pin package, 10×10 mm, 0.5 mm pitch, Tape & Reel (TR) packaging.