STMicroelectronics STM32F101RFT6TR

Overview

STM32F101RFT6TR from STMicroelectronics is an ARM® Cortex®-M3 based 32-bit microcontroller in LQFP64 package, featuring 768 KB Flash, 80 KB SRAM, 12-bit ADC (16-channel), dual 12-bit DACs, and up to 51 GPIOs - deployed in industrial HMI panels, motor control interfaces, and sensor aggregation nodes requiring deterministic real-time response.

For engineers reviewing the STM32F101RFT6TR datasheet, STM32F101RFT6TR pinout, STM32F101RFT6TR application, or STM32F101RFT6TR equivalent, key selection criteria include Flash size vs. peripheral count trade-offs, 36 MHz max CPU frequency under 2.0–3.6 V supply, dual-bank Flash read-while-write capability, and compatibility with SWD/JTAG debug infrastructure.

Technical Context

The device implements a tightly coupled ARM Cortex-M3 core with Memory Protection Unit (MPU), supporting deterministic interrupt latency via Nested Vectored Interrupt Controller (NVIC) and hardware division for real-time control math. Its clock tree integrates dual oscillators - factory-trimmed 8 MHz RC and 32 kHz RTC crystal input - with PLL-based system clock scaling up to 36 MHz.

Peripheral integration includes a flexible static memory controller (FSMC) supporting NOR/PSRAM/NAND, LCD parallel interface (8080/6800 modes), and 10 communication interfaces: up to 3 SPIs (18 Mbit/s), 2 I²Cs, and multiple USARTs with LIN/IrDA modulation support - enabling direct connection to displays, serial sensors, and fieldbus transceivers without external glue logic.

Key Specifications

Pinout & Package

LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, ECOPACK® certified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F103RBT6, STM32F101RFT6TR provides 6× more Flash and 4× more SRAM for feature-rich firmware, while STM32F072RBT6 trades Cortex-M3 determinism and analog peripherals for lower BOM cost and power - making STM32F101RFT6TR optimal for memory-constrained yet functionally dense embedded systems.

Availability

STM32F101RFT6TR is available at Aetrix Electronics and suitable for industrial HMI panels, motor control interfaces, and sensor aggregation nodes requiring stable component supply across multi-year production cycles.

Supply support for STM32F101RFT6TR 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, MEMS, and automotive-grade components.

The STM32F101 access line targets cost-optimized industrial and consumer applications requiring high peripheral integration, deterministic real-time performance, and long-term supply stability - with emphasis on Flash density, analog subsystem richness, and debug accessibility.

FAQ

What is the maximum operating frequency and voltage range for STM32F101RFT6TR?

The STM32F101RFT6TR operates at up to 36 MHz with a supply voltage range of 2.0 V to 3.6 V for both core and I/O domains. It includes a programmable voltage detector (PVD) to trigger interrupts or resets when VDD drops below a user-defined threshold, ensuring reliable operation in fluctuating power environments.

Does STM32F101RFT6TR support external memory expansion?

Yes - it integrates a Flexible Static Memory Controller (FSMC) with four chip-select lines supporting asynchronous/synchronous NOR, PSRAM, NAND, and CompactFlash devices. This enables direct connection to external memory without external address latches or glue logic, simplifying design of data-logging or display-buffering systems.

How many communication interfaces does STM32F101RFT6TR provide?

The device supports up to 10 communication interfaces: 3 SPIs (18 Mbit/s), 2 I²Cs, 3 USARTs (with LIN/IrDA capability), 1 USB 2.0 full-speed interface, and 1 CAN 2.0B controller - enabling simultaneous connectivity to sensors, displays, wireless modules, and industrial fieldbuses.

Is STM32F101RFT6TR pin-compatible with other STM32F10x series MCUs?

Within the LQFP64 package variant, STM32F101RFT6TR shares identical pinout with STM32F102R8T6, STM32F103R8T6, and STM32F103RBH6 - allowing hardware reuse across performance tiers. However, peripheral enablement (e.g., USB, CAN) and memory size differ, requiring firmware adaptation for full feature utilization.