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STMicroelectronics STM32L475RET6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32L475RET6TR STM32L4 MCU, ARM Cortex-M4, 80MHz

MPNSTM32L475RET6TR
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STMicroelectronics STM32L4 series, STM32L475RET6TR, ARM Cortex-M4 32-bit MCU, 80MHz, 512KB Flash, 128K x 8 RAM, CANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB OTG, 51 I/O, 64-LQFP, -40°C ~ 85°C.

$9.2700Ref. price · indicative, final on quote
STMicroelectronics STM32L475RET6TR datasheet (PDF)
Packaging64-LQFP
RoHSROHS3 Compliant
SeriesSTM32L4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32L475RET6TR specifications
ParameterValue
SeriesSTM32L4
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed80MHz
PackageTape & Reel (TR) Cut Tape (CT)
RAM size128K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB OTG
Number of i (O)51
Core processorARM® Cortex®-M4
Case64-LQFP
Data convertersA/D 16x12b; D/A 2x12b
Program memory size512KB (512K x 8)

Product details

That is enough space for a real-time operating system, a TCP/IP stack, and application logic for a fieldbus node or a data-logging controller, without needing external memory. The 128 KB RAM handles moderate-size data buffers for sensor fusion or audio processing via the SAI interface. If your firmware image is pushing past 400 KB today, consider whether the next density step is needed for field-upgrade headroom.

Connectivity and peripherals — what the bus map covers

The STM32L475RET6TR brings CANbus for industrial automation, USB OTG for device-to-host or host-to-peripheral roles, QSPI for fast external Flash or RAM expansion, and SAI for I²S audio codecs. The 51 I/O lines in the 64-LQFP package give enough GPIO for a modest control panel or sensor array without forcing a larger package.

The ROHS3 compliance is confirmed.

Package and mounting — 64-LQFP with 10x10 mm body

Housed in a 64-LQFP with a 10x10 mm body and 0.5 mm pitch, this is a standard surface-mount package that reflows well with typical lead-free profiles. The 64-LQFP is a common footprint across the STM32L4 series, so a board layout can often accommodate a pin-compatible upgrade within the family without a PCB spin. The mounting type is surface mount only.

Frequently asked questions

Can STM32L475RET6TR be used as a replacement for STM32L475RET6?

Yes. The STM32L475RET6TR is the Tape & Reel packaged variant of the base part STM32L475RET6. The silicon and electrical specifications are identical. The only difference is the shipping medium: TR is Tape & Reel for automated pick-and-place, while the non-TR suffix typically ships in trays. A board designed for the STM32L475RET6 will accept the TR variant without any change.

What is the speed and core architecture of STM32L475RET6TR?

It is a 32-bit single-core ARM Cortex-M4 with FPU running at 80 MHz. The Cortex-M4 includes DSP instructions and a single-precision floating-point unit, which offloads math-intensive tasks like sensor fusion, motor control algorithms, and audio processing from the main loop.