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STMicroelectronics STM32L412R8T6 — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM32L412R8T6 ARM Cortex-M4 MCU, 80 MHz, 64 KB Flash

MPNSTM32L412R8T6
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STMicroelectronics STM32L4 series, ARM Cortex-M4 32-bit MCU, 80 MHz, 64 KB Flash, 40K x 8 RAM, 52 I/O, 64-LQFP, -40°C to 85°C, 1.71 V to 3.6 V supply.

$5.7300Ref. price · indicative, final on quote
STMicroelectronics STM32L412R8T6 datasheet (PDF)
Packaging64-LQFP
SeriesSTM32L4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32L412R8T6 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
PackageTray
RAM size40K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, PWM, WDT
ConnectivityI²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB
Number of i (O)52
Core processorARM® Cortex®-M4
Case64-LQFP
Data convertersA/D 16x12b
Program memory size64KB (64K x 8)

Product details

64 KB Flash, 80 MHz Cortex-M4 — the mid-density sweet spot

The STM32L412R8T6 is an ARM Cortex-M4 32-bit MCU in the STM32L4 series, running at 80 MHz with 64 KB Flash and 40K x 8 RAM. The 64-LQFP package provides 52 I/O.

Supply and temperature — single-cell Li-ion friendly

Brown-out detect and reset are on-chip, so an external supervisor isn't required for basic power-fail handling.

Peripheral mix — Quad SPI, USB, and multiple serial buses

DMA is available across all major peripherals, so the CPU isn't stalled moving data from the ADC or serial buffers. No USB OTG is listed in the connectivity set — the USB peripheral is device-only.

Frequently asked questions

What is the difference between STM32L412R8T6 and STM32L432KC?

The STM32L432KC is a different density variant in the STM32L4 series with a different Flash/RAM configuration and package. The STM32L412R8T6 offers 64 KB Flash and 40 KB SRAM in a 64-LQFP, while the STM32L432KC typically has a smaller Flash and a different pin count. For exact parametric differences, consult the respective datasheets — they share the same Cortex-M4 core and ultra-low-power architecture but differ in memory and I/O count.

What package does the STM32L412R8T6 use?

The STM32L412R8T6 is supplied in a 64-LQFP package (10x10 mm body) with a 0.5 mm pitch. It is surface-mount and hand-solderable with standard reflow profiles.

Can STM32L412R8T6 replace STM32L412R8T7?

The STM32L412R8T7 is a higher-temperature-grade variant (typically -40°C to 105°C) of the same base part. Pinout and memory are identical.