STMicroelectronics STM32L151RET6
| Parameters | |
|---|---|
| Series | STM32L1 |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 64-LQFP |
| Mfr | STMicroelectronics |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Supplier Device Package | 64-LQFP (10x10) |
| Speed | 32MHz |
| Oscillator Type | Internal |
| Core Processor | ARM® Cortex®-M3 |
| RAM Size | 80K x 8 |
| Number of I/O | 51 |
| Peripherals | Brown-out Detect/Reset, Cap Sense, DMA, I²S, POR, PWM, WDT |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V |
| EEPROM Size | 16K x 8 |
| Program Memory Type | FLASH |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART, USB |
| Core Size | 32-Bit Single-Core |
| Program Memory Size | 512KB (512K x 8) |
| Data Converters | A/D 21x12b; D/A 2x12b |
| Package | Tray |
| Product Status | Active |
| Base Product Number | STM32L151 |
| REACH Status | REACH Unaffected |
| Standard Package | 160 |
| ECCN | 3A991A2 |
| HTSUS | 8542.31.0001 |
STM32L151RET6 Cortex-M3 MCU STM32L1 Microcontroller IC 32-Bit Single-Core 32MHz 512KB (512K x 8) FLASH
The STM32L151RET6 is an ultra-low-power ARM Cortex-M3 microcontroller from STMicroelectronics, designed for energy-efficient embedded applications. Operating at a frequency of 32 MHz, it combines high performance with minimal power consumption, featuring multiple low-power modes (Sleep, Stop, Standby) that reduce current draw to sub-µA levels, making it ideal for battery-powered IoT devices, wearables, and sensor nodes. The microcontroller includes 512 KB of Flash memory and 80 KB of SRAM, providing ample storage for complex firmware while maintaining efficient power usage.
Built on ST's EnergyLite™ ultra-low-leakage technology, the STM32L151RET6 integrates a rich set of peripherals, including USB 2.0, multiple USART/SPI/I2C interfaces, a 12-bit ADC, and a hardware cryptographic accelerator for secure data processing. It supports a wide voltage range (1.8V to 3.6V), enabling flexible power supply options, and incorporates advanced power management with an integrated voltage regulator for dynamic voltage scaling. The device also features DMA controllers for efficient data transfer, reducing CPU overhead and further optimizing energy consumption.
The microcontroller is supported by ST's STM32Cube ecosystem, which includes development tools, HAL libraries, and middleware for rapid prototyping. Applications span smart metering, healthcare devices, industrial automation, and wireless sensor networks where power efficiency and processing capability are critical.
Alternative Models & Key Features:
● STM32L152RET6: Similar to L151 but includes an integrated LCD controller for segment displays.
● STM32L100RCT6: Lower-cost variant with 256 KB Flash, reduced peripheral set.
● STM32F103RET6: Higher-performance Cortex-M3 MCU (72 MHz) but with higher power consumption.
● EFM32TG11B520F128GQ64: Silicon Labs alternative, Cortex-M0+, ultra-low-power with 128 KB Flash.
