STM32L471ZEJ3

Microcontrollers Overview

The STM32L471ZEJ3 is an ARM Cortex-M4 microcontroller from the STM32L4 series, operating at a maximum frequency of 80 MHz. It features 512 Kbytes of Flash memory and 128 Kbytes of SRAM within a UFBGA-144 package. The device supports a supply voltage range of 1.71 V to 3.6 V and includes a floating-point unit (FPU), DSP instructions, and up to 114 fast I/Os.

Microcontrollers Feature Summary

• Ultra-low-power operation with FlexPowerControl technology for optimized energy consumption across multiple power modes.
• High-performance processing via Arm Cortex-M4 core with FPU and ART Accelerator for zero-wait-state execution.
• Advanced analog capabilities including DFSDM and capacitive sensing channels for sensor integration.

Microcontrollers Applications

• Industrial applications requiring robust performance and low power consumption
• Smart home devices utilizing capacitive touch interfaces
• Medical equipment needing precise analog signal processing

Microcontrollers Procurement Notes

Verify the specific suffix J3 against official STMicroelectronics documentation to confirm pinout and package variations. Ensure compatibility with required temperature ranges and interface configurations before procurement. Cross-reference ordering part numbers with current distributor catalogs to avoid discrepancies in package type or speed grade.

Microcontrollers Selection Notes

Select this component when a balance of high performance and ultra-low power is required. The 80 MHz Cortex-M4 core with FPU suits complex algorithmic tasks. Consider the 512 KB Flash capacity for firmware size and the extensive peripheral set for connectivity needs. Evaluate package constraints against the available UFBGA-144 option.

Microcontrollers Part Context

This MCU belongs to the STM32L471 portfolio, which offers up to 1 Mbyte of Flash and packages ranging from 64 to 144 pins. It extends the ultra-low-power portfolio with enhanced performance features compared to lower-tier models like the STM32L431 or L451 series.

Microcontrollers Replacement Considerations

Check for pin-to-pin compatible alternatives within the STM32L4 series, such as other STM32L471 variants with different package options or memory sizes, ensuring functional equivalence in peripherals and core specifications.