STMicroelectronics STM32L151UCY6TR

• Ultra-low power consumption: 12.3mA maximum supply current enables extended battery life
• Comprehensive analog integration: 21-channel 12-bit ADC + dual 12-bit DAC for precise signal processing
• Rich connectivity suite: USB, UART/USART, SPI, I2C, LIN, and IrDA interfaces
• Compact form factor: 4.164×3.228mm WLCSP package saves critical board space
• Industrial temperature range: -40°C to +85°C operation ensures reliability in harsh environments
• Flexible power supply: 1.8V-3.6V range accommodates various system architectures
• Advanced peripheral set: DMA, PWM, watchdog timer, and power-on-reset
• High I/O density: 51 configurable I/O pins in ultra-compact package
• Memory abundance: 256KB Flash + 32KB RAM + 8KB EEPROM for complex applications

Core Architecture

Memory Configuration

What makes the STM32L151UCY6TR suitable for battery-powered applications?

The STM32L151UCY6TR features ultra-low power consumption with a maximum supply current of 12.3mA, combined with flexible power supply options (1.8V-3.6V). This enables extended battery life in portable devices while maintaining full functionality across multiple power management scenarios.

How many analog channels are available for sensor interfacing?

The microcontroller provides 21 channels of 12-bit ADC resolution, enabling comprehensive multi-sensor monitoring capabilities. Additionally, dual 12-bit DAC channels support analog signal generation, making it ideal for precision measurement and control applications.

What communication interfaces are supported for connectivity?

The device supports comprehensive connectivity including USB, UART/USART, SPI, I2C, LIN bus, IrDA, and I2S interfaces. This rich communication suite enables integration with various peripherals and network architectures without requiring additional interface controllers.

What is the memory configuration and how does it benefit applications?

The STM32L151UCY6TR features 256KB Flash program memory, 32KB RAM, and 8KB EEPROM. This configuration supports complex application code, substantial data processing, and non-volatile parameter storage, enabling sophisticated embedded applications without external memory requirements.

What temperature range can this microcontroller operate in?

The device operates reliably across -40°C to +85°C ambient temperature range, meeting industrial-grade requirements. Combined with MSL 1 moisture sensitivity rating, it ensures dependable performance in harsh environmental conditions typical of automotive, industrial, and outdoor applications.

Market Update: STMicroelectronics maintains strong supply chain stability for the STM32L1 series, with consistent production capacity and established automotive-grade manufacturing processes. The 10-week lead time reflects current global semiconductor conditions while ensuring quality and reliability standards. Volume pricing and long-term supply agreements are available for production commitments.