STMicroelectronics STM32F301C8T6TR

Overview

STM32F301C8T6TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit microcontroller with FPU, 64 KB Flash, 16 KB SRAM, integrated 12-bit DAC, three rail-to-rail comparators, and one programmable-gain operational amplifier. It operates from 2.0–3.6 V, supports up to 72 MHz CPU frequency, and targets analog-intensive embedded control applications such as motor drive feedback loops and sensor signal conditioning.

For engineers reviewing the STM32F301C8T6TR datasheet, STM32F301C8T6TR pinout, STM32F301C8T6TR application, or STM32F301C8T6TR equivalent, key selection criteria include its dual ADC resolution modes (6/8/10/12-bit), 18-channel capacitive touch sensing capability, and dedicated analog supply domains for VDDA (2.0–3.6 V) and VREF+ (2.4–3.6 V) enabling precision mixed-signal design.

Technical Context

The device integrates a tightly coupled Cortex-M4 core with single-cycle multiply and hardware divide, supporting DSP instructions for real-time filtering and control algorithms. Its analog subsystem includes independent voltage domains for ADC (0–3.6 V range), DAC (2.4–3.6 V), and OPAMP (2.4–3.6 V), allowing simultaneous high-precision acquisition and output generation without supply crosstalk.

Timing architecture features four clock sources - HSE (4–32 MHz), LSE (32.768 kHz), HSI (8 MHz RC with PLL), and LSI (40 kHz) - with configurable prescalers and multiplexed routing to peripherals including three I²C interfaces with Fast-mode Plus (20 mA sink), two SPI/I²S controllers, and three USARTs (one with ISO 7816 support).

Key Specifications

Pinout & Package

LQFP48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad; 48-pin quad flat pack suitable for automated PCB assembly and moderate-power analog-digital integration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F302C8T6, the STM32F301C8T6TR trades USB capability for lower system cost and reduced EMI susceptibility; versus STM32F072CBT6, it delivers full analog front-end integration at the expense of M0-class computational throughput - making it optimal for mixed-signal edge nodes requiring local signal processing.

Availability

STM32F301C8T6TR is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, capacitive touch interfaces, and power supply monitoring applications requiring stable component supply and long-term production continuity.

Supply support for STM32F301C8T6TR 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, sensors, and automotive-grade components since 1987.

The STM32F3 series targets cost-sensitive, analog-rich embedded applications - emphasizing integrated precision analog peripherals (OPAMP, COMP, DAC, high-speed ADC) alongside real-time Cortex-M4 performance for industrial and consumer control systems.

FAQ

What is the maximum operating frequency of the STM32F301C8T6TR?

The STM32F301C8T6TR achieves a maximum CPU frequency of 72 MHz using its internal PLL driven by the 8 MHz HSI oscillator or an external 4–32 MHz crystal. This frequency is sustained across the full industrial temperature range (–40°C to +85°C) when powered at 2.7–3.6 V, with timing verified per Section 6.3.9 of DS9895 Rev 8.

Does the STM32F301C8T6TR support hardware floating-point operations?

Yes, the STM32F301C8T6TR integrates an Arm Cortex-M4 core with a single-precision IEEE 754-compliant FPU, enabling hardware-accelerated floating-point math including addition, multiplication, division, and square root. The FPU is fully supported by ARM CMSIS-DSP libraries and GCC/ARMCC toolchains without software emulation overhead.

Can the internal OPAMP be used without external resistors?

Yes - the OPAMP supports programmable-gain amplifier (PGA) mode with gains of 1, 2, 3, 4, 5, 10, 20, or 40× using only internal switches; no external feedback resistors are required. All terminals (VINP, VINN, VOUT) are accessible on dedicated GPIOs (e.g., PA5, PA6, PA7), enabling direct connection to sensors or DAC outputs.

What packaging and RoHS compliance status does the STM32F301C8T6TR have?

The STM32F301C8T6TR is supplied in an LQFP48 package (7 × 7 mm, 0.5 mm pitch) with exposed thermal pad and conforms to RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead finish is matte tin, and moisture sensitivity level (MSL) is Level 3 per J-STD-020 - requiring bake prior to reflow if exposed beyond floor life.