Ultra-Low Power Arm® Cortex®-M4 MCUs
STMicroelectronics' ultra-low power Arm Cortex-M4 MCU from 64 Kbyte to 128 Kbyte of Flash memory and 80 MHz CPU
STMicroelectronics' STM32L412 (no crypto) and STM32L422 (with crypto) devices extend the STM32L4 series with Flash density from 128 Kbytes to 64 Kbytes. Ideal for cost-sensitive applications, low-pin-count-packages choices range from 32-pin LQFP (5 mm x 5 mm) to 64-pin BGA (5 mm x 5 mm) including 36-pin WLCSP (2.58 mm x 3.07 mm). This series dominates the peripheral profile benchmark and increases the score up to 167 ULPMark-PP and up to 447 ULPMark-CP respectively. In addition to this, the STM32L412 devices stretch performance in ULP EEMBC benchmarks as well. Developers will appreciate the slim-form-factor NUCLEO-L412KB board and NUCLEO-L412RB-P including a step-down converter.
Features and Benefits
- The STM32L412/422 portfolio offers from 64 Kbytes to 128 Kbytes of Flash and from 32-pin to 64-pin packages
- The STM32L452/462 portfolio offers from 256 Kbytes to 512 Kbytes of Flash and from 48-pin to 100-pin packages
- The STM32L432/422 portfolio offers from 128 Kbytes to 256 Kbytes of Flash in very small plastic package QFN-32 (5 mm x 5 mm)
Ultra-Low Power Arm® Cortex®-M4 MCUs
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | STM32L412KBT6 | IC MCU 32BIT 128KB FLASH 32LQFP | 1839 - Immediate | $3.12 | View Details |
![]() | ![]() | STM32L412KBU6 | IC MCU 32BIT 128KB FLSH 32UFQFPN | 3493 - Immediate | $3.05 | View Details |
![]() | ![]() | STM32L412CBT6 | IC MCU 32BIT 128KB FLASH 48LQFP | 945 - Immediate | $3.35 | View Details |
![]() | ![]() | STM32L412CBU6 | IC MCU 32BIT 128KB FLSH 48UFQFPN | 1708 - Immediate | $3.14 | View Details |
![]() | ![]() | STM32L412RBI6 | IC MCU 32BIT 128KB FLASH 64UFBGA | 4423 - Immediate | $4.35 | View Details |
![]() | ![]() | STM32L412RBT6 | IC MCU 32BIT 128KB FLASH 64LQFP | 959 - Immediate | $3.59 | View Details |
![]() | ![]() | STM32L422KBT6 | IC MCU 32BIT 128KB FLASH 32LQFP | 6171 - Immediate | $2.86 | View Details |
![]() | ![]() | STM32L422KBU6 | IC MCU 32BIT 128KB FLSH 32UFQFPN | 2895 - Immediate | $3.20 | View Details |
![]() | ![]() | STM32L422CBT6 | IC MCU 32BIT 128KB FLASH 48LQFP | 864 - Immediate | $3.49 | View Details |
![]() | ![]() | STM32L422CBU6 | IC MCU 32BIT 128KB FLSH 48UFQFPN | 1611 - Immediate | $3.38 | View Details |
![]() | ![]() | STM32L422RBI6 | IC MCU 32BIT 128KB FLASH 64UFBGA | 1820 - Immediate | $3.39 | View Details |
![]() | ![]() | STM32L422RBT6 | IC MCU 32BIT 128KB FLASH 64LQFP | 910 - Immediate | $3.81 | View Details |
Development Boards
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | NUCLEO-L412KB | NUCLEO-32 STM32L412KB EVAL BRD | 460 - Immediate | $9.54 | View Details |
![]() | ![]() | NUCLEO-L412RB-P | NUCLEO-64 STM32L412RB EVAL BRD | 20 - Immediate | $13.72 | View Details |











