STMicroelectronics STM32L151RET6

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L1
Packaging Tray |
Core Processor ARM® Cortex®-M3
Core Size 32-Bit Single-Core
Speed 32MHz
Connectivity I2C, IrDA, LINbus, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, Cap Sense, DMA, I2S, POR, PWM, WDT
Number of I/O 51
Program Memory Size 512KB (512K x 8)
Program Memory Type FLASH
EEPROM Size 16K x 8
RAM Size 80K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 3.6V
Data Converters A/D 21x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-LQFP (10x10)
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STMicroelectronics STM32L151RET6 is a low-power 32-bit microcontroller based on the ARM Cortex-M3 core. It operates at 32MHz and provides 512KB flash and 80KB RAM. With a supply voltage range of 1.8V to 3.6V, it is optimized for energy-efficient applications. The device includes Cap Sense touch sensing, DMA, I2S, and multiple timers. Its 64-LQFP package is suitable for space-constrained designs.

  • Ultra-low-power architecture: Extends battery life in portable and IoT devices.
  • Cap Sense touch technology: Enables intuitive user interfaces without external touch ICs.
  • Large 512KB flash: Supports complex applications and over-the-air updates.
  • Wide voltage range (1.8V-3.6V): Compatible with various battery chemistries.

Battery-Powered IoT Sensors

The low 1.8V operation and multiple low-power modes extend battery life in wireless sensor nodes.

Portable Medical Monitors

Cap Sense touch interfaces and low power consumption make it suitable for handheld patient monitors.

Smart Home Controllers

With 512KB flash, it can store complex automation scripts and support multiple communication protocols.

Industrial Data Loggers

The DMA and I2S peripherals enable efficient data capture from external ADCs and audio sensors.

Wearable Fitness Devices

Its small 64-LQFP package and low power draw allow compact, long-lasting wearable designs.

Metering and Measurement Equipment

High accuracy analog peripherals and stable operation over -40°C to 85°C support precise measurements.

Q: What is the core and speed of the STM32L151RET6?
A: It uses an ARM Cortex-M3 core running at up to 32MHz.
Q: How much flash and RAM does it have?
A: It has 512KB flash and 80KB RAM.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V, ideal for low-power applications.
Q: Does it support capacitive touch?
A: Yes, it includes Cap Sense technology for touch sensing.
Base Product Number : STM32L151RET6
32-bit 32MHz 512KB Flash 80KB RAM ARM Cortex-M3 Cap Sense DMA I2S IoT Low Power LQFP-64 MCU Medical PWM WDT
Q: What is the core and speed of the STM32L151RET6?
A: It uses an ARM Cortex-M3 core running at up to 32MHz.
Q: How much flash and RAM does it have?
A: It has 512KB flash and 80KB RAM.
Q: What is the supply voltage range?
A: It operates from 1.8V to 3.6V, ideal for low-power applications.
Q: Does it support capacitive touch?
A: Yes, it includes Cap Sense technology for touch sensing.