STMicroelectronics STM32L151ZET6

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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 115
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 40x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 144-LQFP (20x20)
Package / Case 144-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STMicroelectronics STM32L151ZET6 is an ultra-low-power 32-bit MCU based on the ARM Cortex-M3 core. It operates at 32 MHz with 512 KB flash and 80 KB RAM, supporting a supply voltage from 1.8V to 3.6V. Its rich peripheral set includes Cap Sense, DMA, I2S, and PWM, making it ideal for energy-conscious embedded systems.

  • Ultra-Low Power: Optimized for battery-powered devices with multiple low-power modes.
  • Cap Sense Technology: Built-in capacitive touch sensing eliminates external touch ICs.
  • Balanced Performance: 32 MHz Cortex-M3 provides sufficient compute for most control applications.
  • Large Memory: 512 KB flash and 80 KB RAM support complex firmware and data logging.

Battery-Powered Sensors

Low-power Cortex-M3 with 32 MHz speed and 1.8V operation extends battery life in wireless sensor nodes.

Industrial Process Control

Cap Sense touch interfaces and PWM outputs enable intuitive HMI panels for factory equipment.

Smart Meters

512 KB flash and 80 KB RAM support complex metering algorithms and communication stacks.

Medical Wearables

The low-voltage range and DMA allow efficient data acquisition from biosensors in fitness trackers.

Building Automation

I2S for audio and multiple timers make it suitable for smart thermostats and occupancy detectors.

Portable Instrumentation

Wide temperature range and robust features ensure reliable operation in handheld test equipment.

Q: What is the core processor?
A: It uses an ARM Cortex-M3 core.
Q: What is the maximum speed?
A: The CPU runs at up to 32 MHz.
Q: How much flash memory does it have?
A: It has 512 KB of flash memory.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C.
Base Product Number : STM32L151ZET6
144-LQFP 32-bit MCU 32MHz 512KB Flash 80KB RAM ARM Cortex-M3 Cap Sense DMA I2S industrial medical PWM ultra-low-power
Q: What is the core processor?
A: It uses an ARM Cortex-M3 core.
Q: What is the maximum speed?
A: The CPU runs at up to 32 MHz.
Q: How much flash memory does it have?
A: It has 512 KB of flash memory.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C.