My Inquiry
My Account
STMicroelectronics STM32F302RBT7TR
- Part No.:
- STM32F302RBT7TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F302RBT7TR.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,304
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32F302RBT7TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 72 MHz, featuring 128 KB Flash, 40 KB SRAM (16 KB with HW parity), dual 12-bit ADCs (17-channel, 0.20 µs conversion), one 12-bit DAC, four rail-to-rail comparators, and two programmable-gain operational amplifiers. It integrates CAN 2.0B, USB 2.0 FS, five USART/UARTs, three SPIs (two with I2S), two I²C interfaces, and capacitive touch sensing - deployed in motor control, digital power supplies, and industrial sensor nodes.
For engineers reviewing the STM32F302RBT7TR datasheet, STM32F302RBT7TR pinout, STM32F302RBT7TR application, or STM32F302RBT7TR equivalent, key selection criteria include analog peripheral integration (ADC/DAC/COMP/PGA), real-time performance under 72 MHz with FPU, CAN+USB coexistence, LQFP64 package compatibility, and support for low-power operation with RTC wakeup from Stop/Standby modes.
Technical Context
The device implements a tightly coupled Cortex-M4 core with single-cycle multiply, hardware divide, DSP extensions, and MPU-enabling deterministic execution for control loops. Its analog subsystem includes two independent 12-bit ADCs with selectable resolution (6/8/10/12-bit), differential input capability, and separate 2–3.6 V analog supply (VDDA).
Digital peripherals are orchestrated via an interconnect matrix supporting concurrent high-bandwidth transfers. The advanced-control timer (TIM1) delivers 6-channel PWM with programmable deadtime and emergency stop-critical for three-phase motor gate driving-while the TSC supports up to 24 capacitive sensing channels for touchkey and rotary interface implementation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 72 MHz max - enables real-time signal processing and floating-point math in motor control and sensor fusion. |
| Memory | 128 KB Flash + 40 KB SRAM (16 KB with HW parity) - sufficient for complex firmware with safety-critical data integrity. |
| ADC | Dual 12-bit, 17-channel, 0.20 µs conversion - supports simultaneous sampling of current/voltage feedback in digital power converters. |
| DAC | Single 12-bit channel, 2.4–3.6 V analog supply - provides precise reference generation or analog waveform output for calibration or biasing. |
| Timers | 11 timers including TIM1 (6-PWM advanced-control), TIM2/TIM3/TIM4 (general-purpose), TIM6 (DAC trigger) - meets multi-axis motion control timing requirements. |
| Communication | CAN 2.0B, USB 2.0 FS, 5x USART/UART, 3x SPI (2x with I2S), 2x I²C - enables fieldbus connectivity, host interface, and audio/sensor data streaming. |
| Analog Peripherals | 4 comparators, 2 PGA-capable op-amps, capacitive touch controller (24 channels) - allows integrated signal conditioning and human-machine interface without external components. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog power supply | Separate 2.0–3.6 V domains enable noise isolation between digital logic and precision analog circuits. |
| VSS, VSSA | Digital & analog ground | Independent ground pins reduce coupling of switching noise into ADC/DAC reference paths. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 51 fast I/Os; most 5 V-tolerant and mappable to EXTI - simplifies level-shifting and interrupt-driven event handling. |
| PA1, PA2, PA3, PA4, PA5, PA6, PA7 | ADC1_IN0–IN7 / ADC2_IN0–IN7 | Shared analog inputs support interleaved or simultaneous sampling across dual ADCs for phase-current reconstruction. |
| PA4 | DAC_OUT1 | Dedicated 12-bit DAC output with configurable buffer - used for programmable voltage references or analog actuator control signals. |
| PA11, PA12 | USB_DM, USB_DP | Integrated full-speed USB transceiver eliminates external PHY - reduces BOM cost and PCB area for device firmware upgrade or HID interfaces. |
| PD0, PD1 | CAN_RX, CAN_TX | Dedicated CAN bus interface compliant with ISO 11898-1 - enables robust industrial networking with error framing and arbitration. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | Hardware-accelerated single-precision math - cuts PID loop execution time by >3× vs. software emulation in motor control applications. |
| Programmable gain amplifier (PGA) | Two op-amps with gain settings from 1× to 16×, all terminals accessible - enables direct connection of low-output sensors (e.g., strain gauges) without external signal conditioning. |
| Capacitive touch controller (TSC) | 24-channel support with built-in charge transfer and filtering - achieves <5 µA standby current and immunity to humidity/crosstalk in HMI designs. |
| Advanced-control timer (TIM1) | 6-channel complementary PWM with programmable deadtime and emergency stop input - prevents shoot-through in 3-phase inverter gate drivers. |
| Low-power modes | Sleep, Stop, Standby with RTC wakeup - maintains real-time clock and backup registers at <1 µA in Standby mode using VBAT supply. |
Applications
| Motor Control System | Digital Power Supply |
|---|---|
Use Scenario: Three-phase BLDC motor drive with current sensing, position feedback, and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating gated PWM, managing ADC sampling synchronization, and handling CAN-based command interface. Use Value: Dual ADCs sample phase currents simultaneously; TIM1 delivers synchronized 6-PWM with deadtime; FPU accelerates Clarke/Park transforms in <1 µs. |
Use Scenario: Isolated AC/DC or DC/DC converter with adaptive voltage regulation and fault protection. IC Role / Device Role / Timing Role: Digital power controller performing voltage/current loop regulation, soft-start sequencing, and overvoltage/overcurrent shutdown. Use Value: 12-bit DAC sets reference voltage; comparators detect fast overcurrent events (<100 ns response); PGA amplifies shunt voltage with minimal external components. |
| Industrial Sensor Node | Human-Machine Interface (HMI) |
Use Scenario: Wireless environmental monitor measuring temperature, humidity, and gas concentration with local edge processing. IC Role / Device Role / Timing Role: Data acquisition hub aggregating analog sensor outputs, running sensor fusion algorithms, and preparing packets for UART/USB transmission. Use Value: Dual ADCs acquire multiple sensors concurrently; CRC unit ensures data integrity; low-power Stop mode extends battery life to >1 year on coin cell. |
Use Scenario: Touch-enabled control panel for HVAC, medical devices, or home appliances with slider, wheel, and button gestures. IC Role / Device Role / Timing Role: Capacitive touch processor managing electrode scanning, noise rejection, and gesture decoding without host CPU intervention. Use Value: Integrated TSC supports 24 electrodes with automatic baseline compensation; 5 V-tolerant I/Os simplify connection to LED backlight drivers and buzzer circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F303RBT7 | 256 KB Flash, 48 KB SRAM, no VBAT support for RTC, identical peripheral set except enhanced DMA request mapping. | Better suited for firmware-over-the-air updates and larger control algorithms; lacks VBAT-backed RTC retention during main power loss. | Select when code size exceeds 128 KB and RTC backup during main power failure is not required. |
| STM32G431RBT6 | Same LQFP64 package, 170 MHz Cortex-M4, 128 KB Flash, 32 KB SRAM, enhanced analog (3x ADCs, 2x DACs, 7x comparators), no CAN. | Superior analog density and speed for high-precision measurement; missing CAN limits use in fieldbus-connected systems. | Choose for sensor-intensive applications needing higher sampling rates or more analog channels, where CAN is unnecessary. |
Compared with STM32F302RBT7TR, STM32F303RBT7 offers greater memory headroom but sacrifices VBAT-backed RTC functionality, while STM32G431RBT6 delivers faster processing and richer analog resources at the cost of CAN connectivity - making the STM32F302RBT7TR optimal for cost-sensitive, CAN-reliant industrial controls requiring balanced analog/digital integration.
Availability
STM32F302RBT7TR is available at Aetrix Electronics and suitable for motor control systems, digital power supplies, industrial sensor nodes, and human-machine interfaces requiring stable component supply across production lifecycles.
Supply support for STM32F302RBT7TR 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 ICs, sensors, and automotive-grade components since 1987.
The STM32F3 series targets cost-sensitive, analog-rich embedded applications - emphasizing integrated signal conditioning, real-time control, and low-power operation for industrial automation, digital power, and motor drives.
FAQ
What is the maximum operating frequency and does it require external clock circuitry?
The STM32F302RBT7TR operates at up to 72 MHz using its internal 8 MHz RC oscillator with PLL multiplication, eliminating mandatory external crystals. However, for precise timing (e.g., USB or CAN), a 4–32 MHz external crystal is recommended - the HSE oscillator supports 4–32 MHz, and the LSE (32.768 kHz) is required for RTC accuracy.
How does the dual ADC architecture improve system performance in motor control?
Dual 12-bit ADCs allow simultaneous sampling of up to 17 channels with 0.20 µs conversion time, enabling synchronized current measurements across multiple phases. This eliminates sampling skew, improves observer-based position estimation accuracy, and supports interleaved triggering via TIM1/TRGO events - critical for field-oriented control in BLDC and PMSM drives.
Can the integrated op-amps be used as standalone instrumentation amplifiers?
No - the two op-amps are fully configurable but lack dedicated instrumentation amplifier topology (e.g., three-op-amp structure). They support non-inverting/inverting amplification, voltage followers, and PGA mode (gain 1×–16×), but external resistors are required for differential gain configurations. Their primary design intent is sensor signal conditioning and DAC output buffering.
Is the STM32F302RBT7TR qualified for automotive applications?
No - the STM32F302RBT7TR is specified for industrial temperature range (–40°C to +85°C) and carries industrial-grade qualification (IEC 60730 Class B support). It is not AEC-Q100 qualified; for automotive use, ST recommends the pin-compatible STM32F302RBT6Y (AEC-Q100 Grade 2) or STM32F303xx automotive variants.
STM32F302RBT7TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32F3
- Packaging:
- Tape & Reel (TR)
- 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:
- 52
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F302RBT7TR FAQ
1.How can I place an order for STM32F302RBT7TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F302RBT7TR 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 STM32F302RBT7TR reliable?
The price and inventory of STM32F302RBT7TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F302RBT7TR is usually 5 days.
3.What payment methods are accepted for STM32F302RBT7TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F302RBT7TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F302RBT7TR?
STM32F302RBT7TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F302RBT7TR 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 STM32F302RBT7TR?
For technical support, including STM32F302RBT7TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F302RBT7TR requirements.
6.How does Aetrix verify that STM32F302RBT7TR is sourced from the original manufacturer or authorized distributors?
All STM32F302RBT7TR 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 STM32F302RBT7TR meets industry standards.
7.What is the process for return or replacement of STM32F302RBT7TR?
All STM32F302RBT7TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F302RBT7TR, 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 STM32F302RBT7TR part is unused and in its original packaging.
Return procedure for STM32F302RBT7TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F302RBT7TR Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
