Connectivity and peripherals for sensor-heavy designs
The Quad SPI port can map an external Flash or PSRAM into the memory space for OTA staging or waveform buffers.
For new designs this means no forced migration risk in the near term.
STM32L412CBT6 MCU, 32-bit ARM Cortex-M4, 80 MHz
MPNSTM32L412CBT6
Active
STMicroelectronics STM32L4 series, STM32L412CBT6, 32-bit ARM Cortex-M4 MCU, 80 MHz, 128 KB Flash, 40K x 8 RAM, USB, Quad SPI, 38 I/O, 48-LQFP, -40°C to 85°C.
$5.8100Ref. price · indicative, final on quote
Packaging48-LQFP
SeriesSTM32L4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | STM32L4 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.71V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 80MHz |
| Package | Tray |
| RAM size | 40K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Connectivity | I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB |
| Number of i (O) | 38 |
| Core processor | ARM® Cortex®-M4 |
| Case | 48-LQFP |
| Data converters | A/D 10x12b |
| Program memory size | 128KB (128K x 8) |
Product details
Frequently asked questions
Does STM32L412CBT6 support USB?
Yes, the connectivity block includes USB (along with I²C, Quad SPI, SPI, UART/USART, and LINbus), so it can act as a USB device or host with the appropriate firmware stack.
What is the difference between STM32L412CBT6 and STM32L432KC?
The STM32L432KC is a higher-density member of the same STM32L4 family with more Flash (256 KB) and RAM (64 KB), and typically comes in a 32-pin QFN or 48-pin LQFP. The STM32L412CBT6 offers a lower-cost entry point at 128 KB Flash / 40K x 8 RAM with the same Cortex-M4 core and peripheral set, making it a better fit for cost-sensitive designs that don't need the extra memory.
Is STM32L412CBT6 equivalent to STM32L432?
No, they are not equivalent. Both are STM32L4 Cortex-M4 parts with similar peripherals, but the memory difference affects firmware size and data buffering capacity.