STMicroelectronics STM32L452VEI3TR

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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, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, PWM, WDT
Number of I/O 83
Program Memory Size 512KB (512K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 160K x 8
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V
Data Converters A/D 16x12b SAR; D/A 1x12b
Oscillator Type External, Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 100-UFBGA (7x7)
Package / Case 100-UFBGA
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L452VEI3TR is a low-power ARM Cortex-M4 microcontroller from STMicroelectronics. It operates at 80MHz and includes 512KB of flash and 160KB of SRAM. The device supports a supply voltage from 1.71V to 3.6V and operates over -40°C to 125°C. Packaged in a 100-UFBGA, it is optimized for space-constrained, energy-efficient applications. Its rich set of peripherals and DMA support make it suitable for IoT, medical, and industrial use.

  • Ultra-Low Power: Multiple low-power modes and a 1.71V minimum supply extend battery life in portable devices.
  • High-Temperature Tolerance: 125°C rating enables use in automotive and industrial high-heat environments.
  • Large SRAM: 160KB RAM supports complex real-time operating systems and large data buffers.
  • Compact Package: 100-UFBGA minimizes PCB area, critical for wearables and miniaturized sensors.

IoT Edge Nodes

The 80MHz Cortex-M4 with 160KB RAM handles MQTT/TLS stacks while maintaining low power, enabling battery-powered sensors with 10+ year lifetimes.

Portable Medical Devices

Its 125°C rating and low power consumption suit wearable glucose monitors or insulin pumps that must operate reliably in varying body temperatures.

Smart Building Controllers

With 512KB flash, it stores complex BACnet or Modbus protocols for HVAC and lighting control, while the DMA offloads communication tasks.

Industrial Process Transmitters

The wide temperature range and 1.71V minimum supply allow loop-powered 4-20mA transmitters to operate from a 3.3V rail with high accuracy.

Consumer Wearables

The UFBGA package (5x5mm) enables compact PCB designs for smartwatches, while the low-power modes extend battery life between charges.

Automotive Telematics

With -40°C to 125°C operation, it supports engine-adjacent telematics units for data logging and remote diagnostics.

Q: What is the core and speed of the STM32L452VEI3TR?
A: It uses an ARM Cortex-M4 core running at up to 80MHz.
Q: What is the supply voltage?
A: It operates from 1.71V to 3.6V, ideal for low-power applications.
Q: How much memory does it have?
A: It features 512KB of flash and 160KB of SRAM.
Q: What is the operating temperature range?
A: It is rated for -40°C to 125°C, suitable for extreme environments.
Q: What package is this variant?
A: It comes in a 100-pin UFBGA package, and the TR suffix indicates tape-and-reel packaging.
Base Product Number : STM32L452VEI3
160KB RAM 512KB Flash 80MHz ARM Cortex-M4 automotive IoT low power medical STM32L4 STM32L452VEI3TR UFBGA-100
Q: What is the core and speed of the STM32L452VEI3TR?
A: It uses an ARM Cortex-M4 core running at up to 80MHz.
Q: What is the supply voltage?
A: It operates from 1.71V to 3.6V, ideal for low-power applications.
Q: How much memory does it have?
A: It features 512KB of flash and 160KB of SRAM.
Q: What is the operating temperature range?
A: It is rated for -40°C to 125°C, suitable for extreme environments.
Q: What package is this variant?
A: It comes in a 100-pin UFBGA package, and the TR suffix indicates tape-and-reel packaging.