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STMicroelectronics STM32F334K8U6TR — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM32F334K8U6TR ARM Cortex-M4 MCU, 72MHz, 64KB Flash

MPNSTM32F334K8U6TR
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STMicroelectronics STM32F334 series, 32-bit ARM Cortex-M4 MCU, STM32F334K8U6TR, 72MHz, 64KB Flash, 16K x 8 RAM, 25 I/O, CANbus, I²C, SPI, UART, 10x12b ADC, 3x12b DAC, -40 to 85°C, 32-UFQFPN (5x5).

$3.4449Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F334K8U6TR specifications
ParameterValue
SeriesSTM32F3
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed72MHz
PackageTape & Reel (TR)
RAM size16K x 8
Core size32-Bit Single-Core
PeripheralsDMA, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)25
Core processorARM® Cortex®-M4
Case32-UFQFN Exposed Pad
Data convertersA/D 10x12b; D/A 3x12b
Program memory size64KB (64K x 8)

Product details

Cortex-M4 with 72 MHz — what that means for a control loop

Analog integration — 10 ADC channels, 3 DAC outputs

The on-chip data converters — 10 channels of 12-bit ADC and 3 channels of 12-bit DAC — cover current sensing and setpoint generation without external converters.

Connectivity and peripherals — CANbus, I²C, SPI, UART

The DMA engine offloads data transfers from the core, keeping the 72 MHz CPU free for the control algorithm. The 25 I/O include PWM-capable channels; the part also integrates a programmable watchdog timer and brownout reset.

Frequently asked questions

What is the listed speed of STM32F334K8U6TR?

The core runs at 72 MHz, typical for the STM32F334 series. This clock rate supports real-time control loops such as field-oriented motor control or digital power conversion.

What is the closest pin-compatible alternative to STM32F334K8U6TR?

The STM32F334K8U6TR is part of the STM32F334 family with base number STM32F334. Pin-compatible alternatives include the STM32F334K4U6 (32 KB Flash) and STM32F334K6U6 (32 KB Flash) in the same 32-UFQFPN package, allowing a memory-density swap without board layout changes.