STM32F302CBT6TR

STM32F302CBT6TR Mainstream Mixed-Signal MCU with Arm® Cortex®-M4 Core and FPU

STM32F302CBT6TR Product Overview

The STM32F302CBT6TR is a high-performance mixed-signal microcontroller from STMicroelectronics' STM32F3 series, based on the Arm® Cortex®-M4 32-bit RISC core with a floating point unit (FPU) operating at a frequency of up to 72 MHz. The device incorporates a Memory Protection Unit (MPU) and an embedded trace macrocell (ETM), providing robust security and debug capabilities.

This mainstream MCU integrates 128 Kbytes of Flash memory and 32 Kbytes of SRAM with hardware parity check, delivering a perfect balance of power efficiency, performance, and connectivity. Housed in a compact 48-pin LQFP package (7x7 mm), the STM32F302CBT6TR offers 37 general-purpose I/O pins and supports a wide 2.0 V to 3.6 V operating voltage range. It is qualified for industrial temperature range from -40°C to +85°C, ensuring reliable operation in demanding environments.

STM32F302CBT6TR Key Specifications

Core processor: Arm® Cortex®-M4 with FPU and DSP instructions
Maximum frequency: 72 MHz
Program memory: 128 Kbytes Flash
RAM size: 32 Kbytes SRAM with parity check on first 16 Kbytes
Supply voltage (VDD/VDDA): 2.0 V to 3.6 V
Operating temperature: -40°C to +85°C
Package: 48-LQFP (7x7 mm)
Number of I/Os: 37
Data converters: 9x 12-bit ADC (up to 5 MSPS), 1x 12-bit DAC
Analog peripherals: 4x comparators, 2x operational amplifiers (PGA mode)
Timers: 1x 32-bit, 2x 16-bit advanced-control, 3x 16-bit general-purpose, 2x watchdog, 1x SysTick
Communication interfaces: CAN (2.0B), 2x I2C Fast mode plus (1 Mbit/s), IrDA, LINbus, SPI, UART/USART, USB
DMA: 12-channel controller
Capacitive sensing: Up to 24 channels
CRC calculation unit: Yes
RTC with alarm and periodic wakeup: Yes
Oscillators: 4-32 MHz crystal, 32 kHz RTC oscillator, internal 8 MHz RC with PLL, internal 40 kHz
Packaging: Tape and Reel (TR), Cut Tape (CT), Digi-Reel®
Manufacturer standard package: 2,400 pieces per reel
RoHS: Compliant (ECOPACK2)
Product status: Active

STM32F302CBT6TR Key Advantages

The STM32F302CBT6TR delivers exceptional mixed-signal processing capabilities, combining a 72 MHz Cortex-M4 core with FPU and DSP instructions for efficient real-time digital signal processing. The high-speed 5 MSPS 12-bit ADC with up to 17 channels and selectable resolution (12/10/8/6 bits) enables precise analog-to-digital conversion for sensor interfacing and control applications. The integrated 12-bit DAC and four fast rail-to-rail comparators further enhance analog signal chain integration.

The dual operational amplifiers that can be used in PGA (Programmable Gain Amplifier) mode with all terminals accessible provide flexibility for analog signal conditioning without external components. Up to 24 capacitive sensing channels support touchkey, linear, and rotary touch sensors, enabling advanced human-machine interface designs.

Rich connectivity options including CAN 2.0B, USB, and multiple I2C, SPI, and UART interfaces support industrial networking and general-purpose device connectivity. The 12-channel DMA controller offloads CPU data movement tasks, improving overall system efficiency. Comprehensive timer suite with advanced-control timers featuring deadtime generation and emergency stop supports motor control and power conversion applications. The wide 2.0 V to 3.6 V operating voltage range and low-power modes (Sleep, Stop, Standby) with VBAT supply for RTC and backup registers enable battery-powered and energy-conscious designs.

The device includes robust reset and supply management features including Power-on/Power-down reset (POR/PDR) and programmable voltage detector (PVD), ensuring reliable system start-up and operation. The hardware parity check on the first 16 Kbytes of SRAM enhances data integrity for safety-critical applications. The industrial temperature range of -40°C to +85°C and 48-LQFP package with 37 I/Os make it suitable for space-constrained, harsh-environment designs.

STM32F302CBT6TR Typical Applications

Industrial sensor nodes and data acquisition systems
Motor drive and control systems
Digital power supplies and power conversion
Medical equipment front-end data acquisition
Consumer audio equipment
Automotive body electronics requiring CAN or USB communication
Real-time control and signal processing applications
Touch and HMI interface designs with capacitive sensing

STM32F302CBT6TR Why Choose the STM32F302CBT6TR?

The STM32F302CBT6TR combines a 72 MHz Cortex-M4 core with FPU, 128 KB Flash, 32 KB SRAM, 5 MSPS 12-bit ADC, rich analog peripherals (PGA, comparators, DAC), extensive connectivity (CAN, USB, I2C, SPI, UART), and industrial temperature range in a compact 48-LQFP package. Manufactured by STMicroelectronics, a global leader in semiconductor solutions, this mainstream mixed-signal MCU delivers the perfect balance of performance, power efficiency, and integration for demanding embedded applications.

The advanced mixed-signal integration eliminates external analog components, reducing bill of materials and PCB footprint. The comprehensive development ecosystem including STM32CubeIDE, SDKs, and evaluation boards accelerates time-to-market. The device is fully RoHS compliant (ECOPACK2) and actively supported with a manufacturer standard lead time of 30 weeks. The tape and reel packaging (2,400 pieces per reel) supports high-volume automated assembly. For engineers designing real-time control, motor drive, digital power, or sensor-intensive applications requiring both digital processing power and analog precision, the STM32F302CBT6TR is the ideal choice.