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STMicroelectronics STM32F334C8T6TR
- Part No.:
- STM32F334C8T6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32F334C8T6TR.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,127
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Product details
Overview
STM32F334C8T6TR from STMicroelectronics is an Arm® Cortex®-M4 32-bit MCU with FPU, delivering 72 MHz max CPU frequency, 64 KB Flash, 16 KB SRAM, and integrated high-resolution timer (HRTIM1) with 217 ps resolution. It features three 12-bit DACs, two ADCs (0.20 µs conversion), three rail-to-rail comparators, one programmable-gain op-amp, and CAN 2.0B interface - deployed in digital power supply control and motor drive systems.
For engineers reviewing the STM32F334C8T6TR datasheet, STM32F334C8T6TR pinout, STM32F334C8T6TR application, or STM32F334C8T6TR equivalent, key selection criteria include HRTIM timing precision for PWM dead-time control, analog peripheral supply voltage ranges (2.4–3.6 V for DAC/OPAMP), CAN interface integration, and LQFP48 package compatibility with industrial PCB layouts.
Technical Context
The device implements a tightly coupled Arm Cortex-M4 core with hardware FPU and DSP instructions, supporting single-cycle multiply and HW divide for real-time control math. Its interconnect matrix enables concurrent peripheral access without bus contention, critical for simultaneous ADC sampling, DAC output, and HRTIM waveform generation.
HRTIM1 provides six 16-bit counters with sub-nanosecond resolution (217 ps), 10 PWM outputs, five fault inputs, and synchronized event handling - enabling precise phase-shifted, interleaved, or complementary PWM generation required in resonant LLC converters and three-phase inverters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 72 MHz max - enables real-time floating-point control loops in digital power supplies. |
| Flash / SRAM | 64 KB Flash, 16 KB SRAM - sufficient for complex control algorithms plus safety-critical firmware redundancy. |
| HRTIM Resolution | 217 ps - supports <1 ns timing granularity for adaptive dead-time compensation in SiC/GaN gate drivers. |
| ADC Performance | 0.20 µs conversion time, 12/10/8/6-bit selectable resolution - allows fast current/voltage loop sampling at >1 MSPS effective rate. |
| Analog Peripherals | 3× 12-bit DACs, 3× comparators, 1× PGA-capable op-amp - enables closed-loop analog signal conditioning without external components. |
| Digital Interfaces | CAN 2.0B, 3× USART (1 with ISO7816), I²C, SPI - supports communication with PMBus-compatible power ICs and host controllers. |
| Supply Range | VDD/VDDA: 2.0–3.6 V - compatible with standard 3.3 V industrial rails and low-voltage analog domains. |
Pinout & Package
LQFP48 (7 × 7 mm, 0.5 mm pitch), ECOPACK®2-compliant, with 37 general-purpose I/Os - all mappable to external interrupt vectors and up to 21 pins 5 V-tolerant for mixed-voltage system interfacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA | Core & analog power supply | Separate 2.0–3.6 V domains enable noise-isolated analog subsystem operation. |
| VSS, VSSA | Digital & analog ground | Independent grounding reduces coupling between digital switching noise and precision analog paths. |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/O | Up to 37 GPIOs support remappable alternate functions including HRTIM channels, ADC inputs, DAC outputs. |
| PA11/PA12 | USB DM/DP (not implemented on this variant) | Not connected - STM32F334C8T6TR lacks USB PHY; pins available as GPIO or alternate functions. |
| PD0/PD1 | OSC_IN/OSC_OUT | Supports 4–32 MHz crystal for precise clock source; essential for CAN bit timing and RTC calibration. |
| PA13/PA14 | SWDIO/SWCLK | Dedicated debug interface pins - enable non-intrusive firmware update and real-time trace during power control development. |
Key Features
| Feature | Design Value |
|---|---|
| HRTIM1 with 217 ps resolution | Enables sub-nanosecond PWM edge placement for adaptive dead-time control in GaN-based SMPS. |
| Three independent 12-bit DACs | Provide simultaneous reference generation for multiple current/voltage control loops without external DACs. |
| One PGA-capable operational amplifier | Configurable gain (1–16×) with accessible terminals - replaces discrete op-amp + resistor networks in sensor front-ends. |
| Two ultra-fast comparators (110 ns propagation) | Support overcurrent protection with <120 ns response - critical for cycle-by-cycle current limiting in motor drives. |
| Capacitive sensing controller (18 channels) | Enables touch-based HMI on power converter front panels without adding dedicated touch ICs. |
Applications
| Digital Power Supply Control | Motor Drive & Inverter Control |
|---|---|
Use Scenario: Closed-loop regulation of isolated DC-DC converters (e.g., LLC, Phase-Shifted Full-Bridge) with adaptive dead-time and voltage-mode control. IC Role / Device Role / Timing Role: Primary controller executing real-time PID + feedforward algorithms; HRTIM generates precisely timed gate signals with fault-synchronized shutdown. Use Value: 217 ps HRTIM resolution enables dynamic dead-time adjustment down to 1 ns steps, reducing shoot-through losses in SiC MOSFETs by up to 18%. | Use Scenario: Field-oriented control (FOC) of BLDC/PMSM motors in HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Real-time motor controller managing dual ADC sampling (phase currents), space-vector PWM generation, and thermal monitoring via internal temperature sensor. Use Value: Simultaneous dual ADC conversion (0.20 µs) captures both phase currents within one PWM period, enabling accurate current reconstruction at 20 kHz switching frequency. |
| Industrial CAN Node | Programmable Analog Signal Generator |
Use Scenario: Smart sensor node transmitting real-time power metrics (V/I/temp) over CAN bus in energy-monitoring systems. IC Role / Device Role / Timing Role: CAN endpoint with integrated transceiver interface (CANH/CANL via external driver), ADC/DAC for analog sensor interfacing, and RTC for timestamped logging. Use Value: Single-chip integration eliminates external CAN controller and analog signal conditioner, reducing BOM count by 4 components and PCB area by 28 mm². | Use Scenario: Calibration equipment generating precise analog test waveforms (sine, triangle, arbitrary) for sensor validation and ATE systems. IC Role / Device Role / Timing Role: Waveform generator using triple DACs with HRTIM-triggered updates; op-amp buffers output; comparators monitor limits. Use Value: Three synchronized 12-bit DACs updated at 10 MHz via HRTIM events achieve <0.02% THD in 10 kHz sine generation without external interpolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution timing and analog integration applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F334R8T6 | LQFP64 package, 51 GPIOs, same peripherals but larger pin count and memory map | Better suited for designs requiring >37 I/Os or additional UART/SPI channels | Select when board layout accommodates 10×10 mm footprint and extra GPIOs are needed for expansion. |
| STM32G431KB6 | Cortex-M4 @ 170 MHz, 128 KB Flash, 32 KB SRAM, enhanced HRTIM (184 ps), no built-in op-amp | Higher performance for complex control, but requires external op-amp for PGA functionality | Choose for next-gen digital power designs needing faster computation and finer timing, accepting added analog component cost. |
Compared with STM32F334R8T6, the C8T6TR offers identical analog/peripheral capability in a smaller LQFP48 package - ideal for space-constrained power modules; versus STM32G431KB6, it trades raw speed and memory for integrated op-amp and lower system-level component count.
Availability
STM32F334C8T6TR is available at Aetrix Electronics and suitable for digital power supply control, motor drive systems, industrial CAN nodes, and programmable analog signal generators requiring stable component supply across production lifecycles.
Supply support for STM32F334C8T6TR 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, specializing in microcontrollers, power management, and analog/mixed-signal ICs for industrial, automotive, and consumer markets.
The STM32F3 series targets cost-sensitive, analog-intensive real-time control applications - designed specifically for digital power conversion, motor control, and sensor signal conditioning with integrated high-precision timing and mixed-signal peripherals.
FAQ
Does STM32F334C8T6TR support USB device functionality?
No. This variant does not integrate a USB PHY or USB controller. Pins PA11/PA12 are available as general-purpose I/O or alternate functions (e.g., TIM1_CH4, USART1_CK), but cannot be used for USB communication. USB-capable variants exist in the broader STM32F3 family (e.g., STM32F303xB/C), but not in the F334C8T6TR configuration.
What is the maximum operating temperature range for STM32F334C8T6TR?
The STM32F334C8T6TR is rated for industrial temperature operation from –40 °C to +85 °C. This range is validated per ST's datasheet DS9994 Rev 9, Section 6.3.1, and applies to all specified electrical characteristics including ADC accuracy, DAC linearity, and HRTIM timing stability under thermal stress.
Can the integrated op-amp operate in instrumentation amplifier (INA) configuration?
No. The single integrated op-amp supports non-inverting, inverting, and programmable-gain amplifier (PGA) modes only - it lacks the matched internal resistors or dedicated pins required for true 3-op-amp instrumentation amplifier topology. External resistors can be added to construct an INA, but that configuration is not supported natively by the device's routing or calibration.
Is the HRTIM1 module capable of synchronous multi-channel PWM generation across all six timers?
Yes. HRTIM1 supports full synchronization between its six 16-bit timers via dedicated sync input/output pins and software-controlled master-slave relationships. This enables deterministic phase alignment (e.g., 0°, 60°, 120°) across up to 10 PWM outputs - verified in ST Application Note AN4873 and confirmed in register-level HRTIM_SLR register configuration.
STM32F334C8T6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-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
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 15x12b; D/A 3x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F334C8T6TR FAQ
1.How can I place an order for STM32F334C8T6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F334C8T6TR 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 STM32F334C8T6TR reliable?
The price and inventory of STM32F334C8T6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F334C8T6TR is usually 5 days.
3.What payment methods are accepted for STM32F334C8T6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F334C8T6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F334C8T6TR?
STM32F334C8T6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F334C8T6TR 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 STM32F334C8T6TR?
For technical support, including STM32F334C8T6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F334C8T6TR requirements.
6.How does Aetrix verify that STM32F334C8T6TR is sourced from the original manufacturer or authorized distributors?
All STM32F334C8T6TR 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 STM32F334C8T6TR meets industry standards.
7.What is the process for return or replacement of STM32F334C8T6TR?
All STM32F334C8T6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F334C8T6TR, 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 STM32F334C8T6TR part is unused and in its original packaging.
Return procedure for STM32F334C8T6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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