STM32L562RET6

STM32L562RET6 is STMicroelectronics’ ultra‑low‑power MCU in the STM32L5 family. It combines an ARM Cortex‑M33 core (FPU, DSP) with security and efficiency features for battery‑powered design.
Key points:
- Core and speed: Cortex‑M33 up to about 110 DMIPS at high MHz, with robust low‑power operation.
- Power and safety: TrustZone‑M for isolation, hardware crypto (AES, HASH, RNG, PKA), secure boot and memory protection; wide voltage range and multiple low‑power modes (Sleep/Stop/Standby) for extended battery life.
- Memory and packages: Flash and RAM sizes vary by exact device/package; RET6 denotes a specific package variant. Check the datasheet for the exact counts.
- Peripherals: rich mix of timers, ADCs, DAC, LCD controller, and connectivity (I2C, SPI, USART/LPUART) plus USB FS on supported parts.
- Use cases: wearables, medical devices, sensors, portable IoT, and other energy‑constrained apps.
- Development: supported by STM32CubeIDE, HAL/LL drivers, and the STM32CubeL5 firmware package; consult datasheet and RM for pinout and exact capabilities.
If you need exact flash/RAM and pinout, share the package variant or consult the datasheet.

Key features of the STM32L562RET6 (STM32L5 family):
- 32‑bit ARM Cortex‑M33 MCU with TrustZone security and FPU/DSP
- Up to about 110 MHz operation; ultra‑low‑power design with multiple run/stop/sleep modes
- Operating voltage range: typically 1.65–3.6 V
- Security and protection: hardware cryptography (AES, SHA), RNG, secure boot, MPU/TrustZone isolation
- Memory: Flash and RAM (sizes vary by variant; see datasheet)
- Peripherals: 12‑bit ADC, 12‑bit DAC, multiple timers, RTC, LPTIM, GPIO, and capacitive‑touch support
- Display support: LCD controller for segmented/graphic displays
- Connectivity: USB Full‑Speed, USART/UART, SPI, I2C, I2S
- DMA controller, CRC unit, and other system peripherals for efficiency
- Package: RET6 (64‑pin) with good I/O count in a compact form factor
- Ecosystem: supported by STCubeMX/HAL, secure firmware update and development tools
Note: exact memory sizes and max frequency vary by specific device variant; consult the datasheet for precise numbers.

LQFP-64 (64-pin low-profile quad-flat package).

64 pins (LQFP-64 package). Function: STM32L562RET6 is a 32‑bit ARM Cortex‑M33 microcontroller in the STM32L5 series (low‑power embedded MCU).

Manufacturer: STMicroelectronics (ST).
Company type: A multinational electronics and semiconductor company (one of the world’s larger semiconductor firms), headquartered in Plan-les-Ouates near Geneva, Switzerland. It designs and manufactures microcontrollers (including STM32), sensors, analog and power-management ICs, and other semiconductor products.

STM32L562RET6 is a low-power MCU (Cortex-M33) with security features. Ideal applications include:
- Battery-powered IoT sensors and gateways
- Wearables and portable medical/fitness devices
- Smart meters and home/building automation
- Data loggers and handheld instruments with LCD displays
- Secure connected devices (TrustZone, secure boot, crypto)
- Industrial sensors and remote monitoring