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STMicroelectronics STM32F302RDT6

Name: STM32F302RDT6
Brand: STMicroelectronics
SKU: STM32F302RDT6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32F302RDT6

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 64-LQFP

Datasheet:: STM32F302RDT6.pdf

Description:: IC MCU 32BIT 384KB FLASH 64LQFP

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Product details

Overview

STM32F302RDT6 from STMicroelectronics is a 32-bit ARM® Cortex®-M4 microcontroller with FPU, operating at up to 72 MHz, featuring 384 KB Flash, 64 KB SRAM (with HW parity on first 32 KB), dual 12-bit ADCs (18-channel, 0.20 µs conversion), one 12-bit DAC, four rail-to-rail comparators, and two operational amplifiers usable in PGA mode - deployed in motor control, industrial sensing, and analog-intensive embedded systems.

For engineers reviewing the STM32F302RDT6 datasheet, STM32F302RDT6 pinout, STM32F302RDT6 application, or STM32F302RDT6 equivalent, key selection considerations include its integrated analog front-end (dual ADCs + DAC + OPAMPs + COMP), flexible clocking (HSE/LSE/HSI/LSI + PLL), CAN 2.0B interface, capacitive touch support (24 channels), and LQFP64 package compatibility with legacy STM32F1/F0 pinouts.

Technical Context

The STM32F302RDT6 implements an ARM Cortex-M4 core with hardware FPU and memory protection unit (MPU), enabling deterministic real-time signal processing and secure memory partitioning. Its analog subsystem integrates two independent 12-bit ADCs with selectable resolution (6/8/10/12-bit), shared 0–3.6 V input range, and dedicated analog supply (V_DDA: 2.0–3.6 V).

Digital peripherals include a flexible static memory controller (FSMC) supporting NOR/PSRAM/NAND, three I²C interfaces (Fast-mode Plus, 1 Mbit/s), five USART/UARTs (with LIN/IrDA/ISO 7816), four SPIs (two with I²S), USB 2.0 full-speed with LPM, and a CAN 2.0B controller - all coordinated via an interconnect matrix for low-latency peripheral access.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	ARM Cortex-M4 with FPU, 72 MHz max frequency - enables real-time DSP operations (e.g., motor FOC, sensor fusion) without external coprocessor.
Memory	384 KB Flash (512 KB variant exists; RDT6 = 384 KB), 64 KB SRAM with HW parity on first 32 KB - supports robust firmware storage and safety-critical RAM integrity checking.
ADC	Dual 12-bit ADCs, 18-channel total, 0.20 µs conversion time - allows simultaneous sampling of multiple analog sensors (e.g., current/voltage/temperature in motor drives).
DAC & Analog	One 12-bit DAC (2.4–3.6 V analog supply), four ultra-fast comparators, two OPAMPs (PGA mode, all terminals accessible) - enables closed-loop analog control (e.g., precision reference generation, fast overvoltage detection).
Timers	11 timers including one 32-bit, two 16-bit general-purpose, one advanced-control (6-PWM + deadtime), and RTC with alarm - supports complex PWM generation, encoder interfacing, and time-stamped event logging.
Communication	CAN 2.0B, three I²C (Fast-mode Plus), five USART/UART, four SPI (two with I²S), USB 2.0 FS - meets industrial fieldbus, human-machine interface, and connectivity requirements in single-chip designs.
Package	LQFP64 (10 × 10 mm, 0.5 mm pitch) - provides 51 GPIOs (including 15 5 V-tolerant), compatible with standard PCB assembly and debug probe footprints.

Pinout & Package

LQFP64 package with exposed thermal pad (EP), 64-pin square outline, 0.5 mm pitch, 10 × 10 mm body size - optimized for thermal dissipation in motor control and power conversion applications.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA, VSS, VSSA	Power & Ground	Dual-supply separation: VDD/VSS for digital logic, VDDA/VSSA for analog peripherals - minimizes noise coupling into ADC/DAC/OPAMP paths.
PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD2	General-purpose I/O	51 configurable GPIOs; up to 15 support 5 V tolerance - enables direct interfacing with legacy 5 V logic or industrial sensors without level shifters.
PA1, PA2, PA3, PA4, PA5, PA6, PA7, PB0, PB1, PC0–PC5	ADC Input Channels	18-channel ADC mapping across multiple ports - supports multi-sensor acquisition (e.g., 3-phase current + DC bus voltage + temperature) with hardware sequencing.
PA4, PA5	DAC Output	Two DAC outputs (DAC1_OUT1, DAC1_OUT2) - allows dual independent analog output generation (e.g., reference + offset calibration signals).
PA0, PA1, PA2, PA3, PB4, PB5, PC0–PC5	Comparator Inputs	Four comparators with programmable hysteresis - enables fast overcurrent/overvoltage protection with sub-microsecond response.
PA1, PA2, PA3, PA4, PA5, PA6, PA7, PB0, PB1	OPAMP Inputs/Outputs	Two OPAMPs with non-inverting/inverting inputs and output pins fully exposed - supports configurable gain stages (e.g., current sense amplification before ADC).
PA11, PA12, PA13, PA14, PA15, PB8, PB9	USB/CAN/Debug	PA11/PA12 = USB DP/DM; PB8/PB9 = CAN RX/TX; PA13/PA14 = SWDIO/SWCLK - enables in-system programming and real-time debugging without external adapters.

Key Features

Feature	Design Value
Integrated Analog Front-End	Dual high-speed ADCs + DAC + 4 comparators + 2 PGA-capable OPAMPs - eliminates need for external signal conditioning ICs in cost-sensitive motor control and sensor nodes.
Capacitive Touch Sensing	24-channel TSC supporting touchkey, linear, and rotary sensors - enables intuitive HMI implementation (e.g., industrial panel controls) without dedicated touch controller.
Flexible Clock System	4–32 MHz HSE, 32 kHz LSE (RTC-calibrated), 8 MHz HSI (×16 PLL), 40 kHz LSI - ensures precise timing across modes (e.g., RTC accuracy ±1 ppm with LSE trimming, low-power wake-up from Stop mode in 5 µs).
Advanced Timer Architecture	Advanced-control timer (TIM1) with 6-channel PWM, programmable deadtime, and emergency stop - meets IEC 60730 Class B functional safety requirements for motor drives.
Memory Protection Unit (MPU)	Configurable memory regions with privilege/access attributes - enforces software isolation between application tasks and RTOS kernel, critical for certified embedded systems.

Applications

Industrial Motor Control

Smart Sensor Node

Use Scenario: 3-phase BLDC motor drive with current sensing, position feedback, and thermal monitoring.

IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, managing PWM generation (TIM1), sampling ADCs synchronously with PWM, and regulating via DAC/OPAMPs.

Use Value: Integrated analog chain reduces BOM count by ≥4 discrete components; advanced timers enable <50 ns deadtime control for efficient SiC/GaN switching.

Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and gas concentration.

IC Role / Device Role / Timing Role: Low-power system-on-chip handling sensor interfacing (I²C/ADC), data preprocessing, BLE-ready UART communication, and RTC-triggered periodic wake-up.

Use Value: 1.8 µA Stop mode current and 5 µs wakeup time extend battery life >2 years; capacitive touch supports user interaction without mechanical buttons.

Human-Machine Interface

Power Conversion Monitoring

Use Scenario: Industrial HMI panel with touch slider, LED indicators, and CAN-based PLC communication.

IC Role / Device Role / Timing Role: Dedicated TSC engine for touch decoding, GPIO-driven LED/PWM dimming, and CAN 2.0B for fieldbus integration.

Use Value: Hardware-accelerated touch sensing achieves <10 ms response latency; CAN interface ensures interoperability with existing factory automation infrastructure.

Use Scenario: AC/DC or DC/DC converter with real-time voltage/current regulation and fault logging.

IC Role / Device Role / Timing Role: Precision ADC sampling of isolated feedback signals, DAC-driven reference adjustment, comparator-based overvoltage shutdown, and USB for configuration/logging.

Use Value: 12-bit ADC linearity error <±1 LSB and DAC monotonicity guarantee <0.1% regulation accuracy; comparator propagation delay <100 ns enables sub-microsecond fault response.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32F303RCT6	512 KB Flash, 80 KB SRAM, no FSMC, adds 128-bit AES crypto accelerator and CRC polynomial engine.	Better suited for secure firmware updates and encrypted communication; lacks FSMC for external memory expansion.	Select when security features outweigh need for external SRAM/NOR flash interface.
STM32G431KBT6	170 MHz Cortex-M4, 128 KB Flash, 32 KB SRAM, enhanced analog (2x faster ADC, 2x DAC), no FSMC, different pinout.	Higher performance per MHz but smaller memory; optimized for digital power control (e.g., digital PFC), not legacy FSMC-based designs.	Select for new designs prioritizing analog speed and computational throughput over backward-compatible memory expansion.

Compared with STM32F302RDT6, the STM32F303RCT6 trades FSMC for cryptographic acceleration - ideal for secure edge nodes - while the STM32G431KBT6 delivers higher analog bandwidth and CPU speed but abandons LQFP64 FSMC compatibility, requiring PCB redesign.

Availability

STM32F302RDT6 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, human-machine interface panels, and power conversion monitoring requiring stable component supply across long-lifecycle production programs.

Supply support for STM32F302RDT6 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 devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

The STM32F3 series targets cost-sensitive, analog-intensive embedded applications - combining high-precision mixed-signal peripherals with Cortex-M4 performance to replace multi-chip solutions in motor control, metering, and HMI.

FAQ

What is the maximum operating frequency and supported voltage range for the STM32F302RDT6?

The STM32F302RDT6 operates at up to 72 MHz using its internal PLL, with a VDD supply range of 2.0 V to 3.6 V and separate VDDA (analog supply) from 2.0 V to 3.6 V. The device guarantees full functionality across this range, including all analog peripherals, and supports dynamic voltage scaling for low-power operation.

Does the STM32F302RDT6 support hardware encryption or secure boot features?

No, the STM32F302RDT6 does not include hardware cryptographic accelerators (e.g., AES, PKA) or secure boot circuitry. It features a Memory Protection Unit (MPU) for software-defined memory isolation and a 96-bit unique ID for device identification, but lacks dedicated security peripherals found in the STM32F303 or STM32L4 series.

How many analog-to-digital converter (ADC) channels are available, and what are their key electrical specifications?

The STM32F302RDT6 integrates two independent 12-bit ADCs with up to 18 total input channels, 0.20 µs conversion time, and selectable resolution (6/8/10/12-bit). Each ADC supports 0–3.6 V input range with dedicated VDDA supply (2.0–3.6 V), and features hardware oversampling, injected channel sequencing, and analog watchdogs for autonomous fault detection.

Is the STM32F302RDT6 pin-compatible with other STM32 families, and what debug interfaces does it support?

The STM32F302RDT6 in LQFP64 is pin-compatible with STM32F103C8T6 and STM32F072RBT6 for core GPIO, USART, SPI, and I²C functions, though analog/peripheral mappings differ. It supports SWD (Serial Wire Debug) via PA13/PA14 and JTAG (5-pin) - both enabled by default at reset, with SWD preferred for minimal pin count and reliable in-circuit debugging.

STM32F302RDT6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 64-LQFP

Series:: STM32F3

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M4

Core Size:: 32-Bit Single-Core

Speed:: 72MHz

Connectivity:: CANbus, I2C, IrDA, LINbus, SPI, UART/USART, USB

Peripherals:: DMA, I2S, POR, PWM, WDT

Number of I/O:: 51

Program Memory Size:: 384KB (384K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 64K x 8

Voltage - Supply (Vcc/Vdd):: 2V ~ 3.6V

Data Converters:: A/D 16x12b; D/A 1x12b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32F302RDT6 FAQ

1.How can I place an order for STM32F302RDT6 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32F302RDT6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STM32F302RDT6 reliable?

The price and inventory of STM32F302RDT6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F302RDT6 is usually 5 days.

3.What payment methods are accepted for STM32F302RDT6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F302RDT6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32F302RDT6?

STM32F302RDT6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32F302RDT6 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STM32F302RDT6?

For technical support, including STM32F302RDT6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F302RDT6 requirements.

6.How does Aetrix verify that STM32F302RDT6 is sourced from the original manufacturer or authorized distributors?

All STM32F302RDT6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32F302RDT6 meets industry standards.

7.What is the process for return or replacement of STM32F302RDT6?

All STM32F302RDT6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F302RDT6, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STM32F302RDT6 part is unused and in its original packaging.

Return procedure for STM32F302RDT6:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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