STM32L552MEY6QTR
Manufacturer package reference image
Ultra-low-power with FPU Arm Cortex-M33 with Trust Zone, MCU 110 MHz with 512 kbytes of Flash memory
Key Specifications
| Complete manufacturer part number | STM32L552MEY6QTR |
|---|---|
| Manufacturer | STMicroelectronics |
| Description | Ultra-low-power with FPU Arm Cortex-M33 with Trust Zone, MCU 110 MHz with 512 kbytes of Flash memory |
| Package / case | WLCSP 81 4.1x4.4x0.6 P 0.4 mm |
| Product category | Microcontrollers |
| Pins | 81 |
| MCU series | STM32L5 |
| Operating temperature (manufacturer ordering record) | -40.0 °C to 85.0 °C |
| Core | Arm Cortex-M33 |
| Flash memory (exact ordering overview) | 512 KB |
| Operating supply voltage | 1.71 V to 3.6 V |
| Packing type | Tape And Reel |
| RoHS compliant | Ecopack2 |
| Grade | Industrial |
| In stock | 5,530 pcs |
| Unit price | Request a quote |
| Lead time | To be confirmed |
Technical documentation and image source
Exact ST ordering page verified on 2026-11-04. Temperature labels preserve manufacturer ordering scope; ambient or junction basis is not inferred. Package reference image is not a stock-lot photograph. Consult the datasheet for electrical limits and test conditions.
Manufacturer package reference image for WLCSP 81 4.1x4.4x0.6 P 0.4 mm. Confirm electrical pin functions in the datasheet. Actual lot appearance and top marking require current-lot confirmation.
Some exact-order specifications remain to be confirmed in the manufacturer documentation.