STMicroelectronics STM32L462VET6TR

Overview

STM32L462VET6TR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, delivering 100 DMIPS at 80 MHz, featuring 512 KB Flash, 160 KB SRAM, and integrated analog peripherals including 12-bit ADC (5 Msps), dual 12-bit DACs, op-amp with PGA, and hardware AES encryption. It targets battery-powered IoT sensor nodes, portable medical devices, and energy-harvesting systems requiring sub-µA standby operation and RTC-backed data retention.

For engineers reviewing the STM32L462VET6TR datasheet, STM32L462VET6TR pinout, STM32L462VET6TR application, or STM32L462VET6TR equivalent, key selection criteria include verified 375 nA Standby-with-RTC current, 83 GPIOs (most 5 V-tolerant), LPUART wake-up capability in Stop 2 mode, and UFBGA100 package compatibility with high-density PCB layouts.

Technical Context

This MCU implements FlexPowerControl architecture with five low-power modes (Shutdown, Standby, Stop 0/1/2), where Stop 2 achieves 375 nA with RTC active and 4 µs wakeup. The ART Accelerator™ enables zero-wait-state execution from Flash at 80 MHz, while dual PLLs independently supply system clock and audio subsystems.

The analog subsystem operates on independent supply rails and includes a 12-bit ADC with hardware oversampling up to 16-bit effective resolution, two 12-bit DAC channels with sample-and-hold, and two ultra-low-power comparators - all functional down to 1.71 V supply and qualified for -40 °C to +125 °C operation.

Key Specifications

Pinout & Package

STM32L462VET6TR is housed in a 100-pin Ultra-Fine-Pitch Ball Grid Array (UFBGA100) package measuring 7 mm × 7 mm with 0.5 mm ball pitch, optimized for compact, high-I/O-count designs and compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power MCU applications.

Compared with STM32L476VGT6 and STM32L552VET6, the STM32L462VET6TR delivers optimal balance of analog integration, sub-µA low-power operation, and cost-effective UFBGA100 packaging - making it the preferred choice for resource-constrained, sensor-centric edge devices where op-amp signal conditioning and RTC-backed data integrity are critical.

Availability

STM32L462VET6TR is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, industrial wireless sensor nodes, and portable diagnostic devices requiring stable component supply across extended product lifecycles.

Supply support for STM32L462VET6TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive semiconductors since 1987.

The STM32L4 series targets ultra-low-power embedded applications demanding high performance per µA, with the STM32L462VET6TR specifically engineered for battery-operated, sensor-fused edge devices requiring robust analog front-ends and cryptographic security.

FAQ

What is the maximum operating temperature specification for STM32L462VET6TR?

The STM32L462VET6TR is rated for operation from -40 °C to +125 °C ambient temperature, validated per DS11913 Rev 5 Section 6.3.1. This extended grade supports deployment in harsh environments such as industrial motor drives, automotive under-hood modules, and outdoor utility infrastructure without derating.

Does STM32L462VET6TR support crystal-less USB operation?

Yes - STM32L462VET6TR integrates a 48 MHz HSI48 oscillator with clock recovery system (CRS), enabling full-speed USB 2.0 communication without an external crystal. This is confirmed in Section 3.33 of DS11913 Rev 5 and reduces BOM cost and PCB area in space-constrained designs.

How many ADC channels does STM32L462VET6TR support, and what is its effective resolution with oversampling?

The device features one 12-bit ADC with up to 16 external channels and hardware oversampling that extends effective resolution to 16 bits at reduced sampling rates. As specified in Section 3.15 and Table 38 of DS11913 Rev 5, this enables high-precision sensor measurements (e.g., thermocouple or strain gauge) without external delta-sigma converters.

Is the op-amp in STM32L462VET6TR configurable as a programmable gain amplifier (PGA)?

Yes - the integrated operational amplifier includes a built-in programmable gain amplifier stage with selectable gains of 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 32, or 64, as documented in Section 3.19 and Figure 134 of DS11913 Rev 5. This eliminates need for discrete PGAs in front-end signal conditioning for low-amplitude sensors.