STMicroelectronics STM32L471QEI7TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $20.75 | $20.75 |
| 15+ | $4.77 | $71.55 |
| 25+ | $4.67 | $116.75 |
| 50+ | $4.41 | $220.50 |
| 100+ | $3.89 | $389.00 |
| N+ | $0.78 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L4 |
| Packaging | Tape & Reel (TR) | NULL |
| Core Processor | ARM® Cortex®-M4 |
| Core Size | 32-Bit Single-Core |
| Speed | 80MHz |
| Connectivity | CANbus, EBI/EMI, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Number of I/O | 109 |
| Program Memory Size | 512KB (512K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 128K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V |
| Data Converters | A/D 19x12b; D/A 2x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 132-UFBGA (7x7) |
| Package / Case | 132-UFBGA |
| ROHS |
The STM32L471QEI7TR from STMicroelectronics is an ultra-low-power 32-bit MCU built on the ARM Cortex-M4 core. It delivers 80MHz performance with 512KB flash and 128KB SRAM, operating from 1.71V to 3.6V. This device integrates advanced peripherals including DMA, PWM, and watchdog timers, making it ideal for energy-conscious industrial and consumer applications. Its 132-UFBGA package supports space-constrained PCB layouts.
- Ultra-low power consumption: Optimized for battery-powered devices, extending operational life.
- High processing capability: 80MHz Cortex-M4 with DSP instructions for efficient signal processing.
- Large memory footprint: 512KB flash and 128KB SRAM support complex firmware and data buffering.
- Wide voltage range: 1.71V to 3.6V ensures compatibility with various power sources.
- Extended temperature range: -40°C to 105°C suits harsh industrial environments.
IoT Edge Nodes
With an 80MHz Cortex-M4 and 512KB flash, it handles sensor fusion and secure communication protocols while maintaining low power draw.
Industrial Sensor Hubs
The 1.71V-3.6V supply range and robust DMA/PWM peripherals enable precise data acquisition and actuator control in factory automation.
Portable Medical Devices
Its low-voltage operation and brown-out detection ensure reliable operation in battery-powered glucose meters and pulse oximeters.
Smart Meters
The 128KB SRAM supports complex metering algorithms, while the WDT enhances long-term reliability in utility infrastructure.
Wearable Fitness Trackers
The compact 132-UFBGA package and 105°C temperature tolerance allow integration into small, heat-constrained wearable devices.
Building Automation Controllers
Multiple PWM channels and DMA controllers manage HVAC actuators and lighting systems with deterministic timing.
- Q: What is the operating voltage range of the STM32L471QEI7TR?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: What is the maximum CPU speed?
- A: The ARM Cortex-M4 core runs at up to 80 MHz.
- Q: How much flash memory does it have?
- A: It includes 512 KB of flash memory and 128 KB of SRAM.
- Q: What package is available?
- A: It comes in a 132-UFBGA package, suitable for compact designs.
- Q: Does it support low-power modes?
- A: Yes, it features multiple low-power modes ideal for energy-efficient IoT devices.
- Q: What is the operating voltage range of the STM32L471QEI7TR?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: What is the maximum CPU speed?
- A: The ARM Cortex-M4 core runs at up to 80 MHz.
- Q: How much flash memory does it have?
- A: It includes 512 KB of flash memory and 128 KB of SRAM.
- Q: What package is available?
- A: It comes in a 132-UFBGA package, suitable for compact designs.
- Q: Does it support low-power modes?
- A: Yes, it features multiple low-power modes ideal for energy-efficient IoT devices.

STM32L471QEI7TR.pdf