STMicroelectronics STM32C011F4U7TR

Overview

STM32C011F4U7TR from STMicroelectronics is an Arm® Cortex®-M0+ 32-bit microcontroller with 32 KB flash, 6 KB SRAM, dual USARTs, 12-bit ADC (0.4 µs conversion), and operating voltage range of 2.0–3.6 V. It integrates a 48 MHz internal RC oscillator (±1 %), programmable brownout reset, and 18 fast 5 V-tolerant I/Os-designed for cost-sensitive industrial sensor nodes and smart metering front-ends.

For engineers reviewing the STM32C011F4U7TR datasheet, STM32C011F4U7TR pinout, STM32C011F4U7TR application, or STM32C011F4U7TR equivalent, key selection criteria include its UFQFPN20 package footprint, 48 MHz max CPU frequency, 125°C extended temperature rating, low-power Stop/Standby modes, and ISO7816/LIN-capable USART support.

Technical Context

The STM32C011F4U7TR implements an Arm Cortex-M0+ core with MPU, supporting TrustZone-like memory protection via securable flash area and hardware parity on SRAM. Its clock system combines 4–48 MHz HSE, 32 kHz LSE with calibration, and two internal oscillators (HSI48 ±1 %, LSI ±5 %) enabling precise timing without external crystals in many applications.

Peripheral interconnect uses a multi-layer AHB/APB bus matrix with DMA controller (3 channels, flexible mapping) and NVIC with 32 interrupt lines. Analog subsystem includes temperature sensor, VREFINT, and ADC with up to 13 external channels-fully compatible with ST's STM32Cube ecosystem and HAL drivers.

Key Specifications

Pinout & Package

STM32C011F4U7TR is housed in a 20-pin Ultra-Fine Pitch Quad Flat No-lead (UFQFPN20) package measuring 3.0 × 3.0 mm with 0.4 mm pitch and exposed thermal pad. Pinout conforms to Figure 6 in DS13866 Rev 5.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32C011J4M6TR, the STM32C011F4U7TR offers significantly more I/Os, full ADC capability, and richer communication options; versus STM32G031F8P6, it trades USB for specialized industrial protocol support-making it optimal for secure, protocol-specific edge nodes.

Availability

STM32C011F4U7TR is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, BLDC motor control, and POS terminal peripherals requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for STM32C011F4U7TR 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, delivering silicon solutions for automotive, industrial, and consumer markets since 1987.

The STM32C0 series targets cost-optimized, high-reliability applications in industrial automation and smart infrastructure-emphasizing security certification, extended temperature operation, and minimal external component count.

FAQ

What is the maximum operating frequency and supported clock sources?

The STM32C011F4U7TR runs at up to 48 MHz using its internal HSI48 oscillator (±1 % accuracy), external 4–48 MHz crystal (HSE), or 32.768 kHz LSE with calibration. All clock sources are switchable at runtime and support automatic failover-enabling robust timing in environments where crystal stability cannot be guaranteed.

Does this MCU support secure firmware updates out of the box?

Yes. The part includes a securable flash area, hardware CRC unit, and SESIP3/PSA Level 3 certification-enabling authenticated and encrypted firmware updates. Boot ROM supports secure boot from flash with public-key verification, and the securable area prevents unauthorized readout of cryptographic keys or sensitive configuration data.

Can the ADC measure external signals beyond the supply rail?

No. The ADC input voltage range is limited to 0–VDD (max 3.6 V). However, all 18 GPIOs are 5 V-tolerant, allowing safe connection to higher-voltage analog signal conditioning circuits-as long as the conditioned output stays within the ADC's 0–3.6 V input range and respects absolute maximum ratings.

Is SWD debug supported, and what pins are required?

Yes. Serial Wire Debug (SWD) is fully supported using only two pins: SWDIO (PA13) and SWCLK (PA14). No additional reset or trace pins are required for basic programming and debugging. These pins are shared with GPIO functionality and can be remapped after initialization if needed for application use.