STMicroelectronics STM32F101RCT6TR

Overview

STM32F101RCT6TR from STMicroelectronics is a high-density ARM® Cortex®-M3 32-bit microcontroller with 256 KB Flash, 36 MHz max CPU frequency, and integrated peripherals including 1×12-bit ADC (16 channels), 2×12-bit DACs, and up to 10 communication interfaces (3×SPI, 2×I²C, 3×USART). It targets industrial control panels requiring deterministic real-time response, low-power operation, and on-chip analog signal conditioning.

For engineers reviewing the STM32F101RCT6TR datasheet, STM32F101RCT6TR pinout, STM32F101RCT6TR application, or STM32F101RCT6TR equivalent, key selection criteria include Flash/SRAM size, I/O count (51 mappable pins), 3.3 V supply tolerance, LQFP64 package compatibility, and support for SWD/JTAG debug in resource-constrained embedded designs.

Technical Context

The STM32F101RCT6TR implements a single-core ARM Cortex-M3 with Harvard architecture, 3-stage pipeline, and Thumb-2 instruction set. It integrates a flexible static memory controller (FSMC) supporting NOR/PSRAM/CompactFlash and an LCD parallel interface (8080/6800 modes) for direct display driver interfacing.

Clock management includes dual oscillators (4–16 MHz HSE + 32 kHz LSE), factory-trimmed 8 MHz HSI RC, and PLL-based system clock generation. Power management supports Sleep, Stop, and Standby modes with VBAT backup for RTC and registers, enabling battery-backed timekeeping in metering applications.

Key Specifications

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK® certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103RCT6, the STM32F101RCT6TR offers reduced Flash/SRAM at lower cost and power, while STM32F072RBT6 trades Cortex-M3 features for lower price and simpler toolchain support - making the F101 optimal for balanced industrial control where external memory and deterministic timing are critical but USB is not needed.

Availability

STM32F101RCT6TR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart energy meters, medical infusion pumps, and building automation gateways requiring stable component supply across multi-year production cycles.

Supply support for STM32F101RCT6TR 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, specializing in microcontrollers, power management, and sensing technologies for industrial, automotive, and consumer markets.

The STM32F101 series belongs to ST's mainstream ARM Cortex-M3 portfolio, designed specifically for cost-sensitive industrial control applications requiring robust analog integration, deterministic real-time performance, and long-term product availability.

FAQ

What is the maximum operating temperature range for STM32F101RCT6TR?

The STM32F101RCT6TR is rated for industrial temperature range: –40°C to +85°C ambient. This is validated per ST's datasheet Section 5.3.1, with thermal derating applied above 70°C for sustained operation under full peripheral load. The device includes an integrated temperature sensor calibrated to ±1.5°C accuracy across this range.

Does STM32F101RCT6TR support hardware floating-point unit (FPU)?

No, the STM32F101RCT6TR does not include a hardware FPU. It uses the ARM Cortex-M3 core without floating-point extension. All floating-point operations must be handled in software using CMSIS-DSP libraries or compiler-generated routines. For applications requiring intensive FP math, ST recommends the STM32F4 series with Cortex-M4F core.

Can STM32F101RCT6TR directly drive an LCD module?

Yes - it integrates an 8080/6800 parallel LCD interface supporting up to 8080-style 16-bit data bus and control signals (RS, RW, E). This enables direct connection to character or graphic LCDs without external controllers, provided the display operates at 3.3 V logic levels and meets timing specifications in Section 2.3.6 of the datasheet.

Is STM32F101RCT6TR pin-compatible with other STM32F101 variants in LQFP64?

Yes - all STM32F101xR devices in LQFP64 (e.g., STM32F101RBT6, STM32F101RCT6, STM32F101RDT6) share identical pinouts and mechanical footprint. Differences lie only in Flash size (128 KB to 512 KB) and SRAM (16 KB to 48 KB); firmware must be validated for memory map alignment when upgrading between variants.