Mikrocontroller

STM32L081CBT6

STM32L081CBT6 - Ultra-Low-Power ARM Cortex-M0+ MCU | STMicroelectronics

The STM32L081CBT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the ARM Cortex-M0+ core. It operates at a maximum frequency of 32 MHz and provides 192 KB of Flash memory and 20 KB of SRAM. The device is housed in a 48-pin LQFP package (7x7 mm) and is designed for a wide range of battery-powered and energy-efficient applications. An ultra-low-power microcontroller (MCU) is a type of integrated circuit that combines a processor core, memory, and peripherals on a single chip, optimized for minimal power consumption. It is a key component in the hierarchy of embedded systems, where it serves as the central processing unit for devices that require long battery life, such as wearables, IoT sensors, and medical monitors. The STM32L0 series is part of the broader STM32 family, which includes higher-performance Cortex-M3/M4/M7 variants, but the L0 series specifically targets power-sensitive applications. Key features of the STM32L081CBT6 include multiple low-power modes (Sleep, Low-power Run, Low-power Sleep, Stop, Standby), a 12-bit ADC with hardware oversampling, a 12-bit DAC, two comparators, and a USB 2.0 full-speed device controller. It also integrates a real-time clock (RTC) with calendar and alarm functions, and a true EEPROM emulation using the Flash memory. The device supports a wide supply voltage range from 1.65V to 3.6V, making it suitable for single-cell battery operation. The STM32L081CBT6 is built on ST's ultra-low-leakage process technology, achieving dynamic power consumption as low as 84 µA/MHz in Run mode and 0.29 µA in Standby mode with RTC. This is achieved through a flexible clock gating and power management architecture that allows each peripheral to be independently powered down. The device also includes a hardware cryptographic accelerator (AES-128) for secure data communication. Typical applications include battery management systems, portable medical devices, smart sensors, and IoT nodes. The USB interface enables direct connectivity to hosts for data logging or firmware updates. The rich analog peripherals make it ideal for signal conditioning and measurement applications. When designing with this MCU, careful attention should be paid to the power supply decoupling and the selection of the appropriate low-power mode to balance performance and energy consumption. The device's extensive documentation and STM32Cube ecosystem provide a robust development environment, including HAL libraries and low-layer APIs.

USD $2,19 Auf Lager

STM32L083RBT6

STM32L083RBT6 - Ultra-Low-Power ARM Cortex-M0+ MCU | STMicroelectronics

The STM32L083RBT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the ARM Cortex-M0+ core. It operates at a maximum frequency of 32 MHz and provides 128 KB of Flash memory and 20 KB of SRAM. The device is housed in a 64-pin LQFP package, offering a rich set of peripherals including multiple communication interfaces, analog features, and advanced low-power modes. An ultra-low-power microcontroller (MCU) is a type of embedded processor designed to minimize energy consumption while maintaining sufficient processing capability for battery-powered or energy-harvesting applications. These MCUs typically feature multiple low-power modes, such as sleep, stop, and standby, allowing the system to dynamically trade off performance for power savings. The STM32L0 series sits within the broader STM32 family, which spans from the entry-level Cortex-M0+ parts to high-performance Cortex-M7 devices, and is specifically optimized for applications where power efficiency is paramount. Key features of the STM32L083RBT6 include a 12-bit ADC with hardware oversampling, a 12-bit DAC, two comparators, and an integrated LCD driver supporting up to 8x40 segments. It also offers a comprehensive set of communication peripherals: two I2C interfaces, two SPI interfaces, two USARTs, and one low-power UART. The device supports USB 2.0 full-speed device mode, making it suitable for applications requiring connectivity. Additionally, it includes a hardware random number generator (RNG) and a true RTC with calendar and alarm functions. The STM32L083RBT6 is built on ST's ultra-low-power technology, featuring dynamic voltage scaling and a wide supply voltage range from 1.8V to 3.6V. It achieves a typical power consumption of 0.29 µA in Standby mode with RTC, and 3.4 µA in Stop mode with RTC. The device also supports a low-power run mode at 32 kHz, consuming only 3.2 µA. These characteristics make it ideal for battery-operated devices, such as smart meters, medical monitors, and portable sensors. Typical applications include smart meters, healthcare devices, industrial sensors, and IoT nodes. The integrated LCD driver simplifies the design of display-equipped devices, while the multiple low-power modes enable extended battery life. The device is also supported by ST's comprehensive ecosystem, including the STM32CubeMX configuration tool and the STM32CubeL0 firmware library, which accelerate development. When designing with this MCU, careful attention should be paid to the power supply decoupling and the selection of the appropriate low-power mode for the application's duty cycle. The use of the internal 16 MHz HSI oscillator can reduce external component count, but for precise timing, an external crystal is recommended. The device's brown-out reset and power-on reset features ensure reliable operation across the supply voltage range.

USD $2,77 Auf Lager

STM32L100RCT6

STM32L100RCT6 - Ultra-Low-Power ARM Cortex-M3 MCU | STMicroelectronics

The STMicroelectronics STM32L100RCT6 is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M3 core, operating at frequencies up to 32 MHz. It features 256 KB of Flash memory and 16 KB of SRAM, making it suitable for a wide range of battery-powered and energy-efficient applications. The device is housed in a 64-pin LQFP package (LQFP64) and supports a supply voltage range of 1.8V to 3.6V, with a comprehensive set of peripherals including multiple USARTs, SPIs, I2Cs, ADCs, DACs, timers, and GPIOs. What is an ultra-low-power microcontroller? An ultra-low-power microcontroller is a type of embedded processor designed to minimize energy consumption while maintaining computational capability. It typically integrates multiple low-power modes (such as sleep, stop, and standby) and features like dynamic voltage scaling and clock gating to extend battery life in portable and IoT devices. In the system hierarchy, an ultra-low-power MCU sits at the heart of embedded systems, managing sensors, actuators, and communication interfaces while consuming minimal power, often in the microamp range during standby. Key features of the STM32L100RCT6 include its ultra-low-power modes: a low-power run mode at 5.1 µA, a sleep mode at 3.4 µA, a stop mode at 1.8 µA, and a standby mode at 0.4 µA (typical values). The device also integrates a 12-bit ADC with up to 16 channels, a 12-bit DAC, and a real-time clock (RTC) with calendar and alarm functions. It supports a wide operating temperature range of -40°C to +85°C, making it suitable for industrial and consumer applications. Technically, the STM32L100RCT6 is built on ST's low-leakage process technology, which enables its exceptional power efficiency. The Cortex-M3 core includes a memory protection unit (MPU) and supports Thumb-2 instruction set for efficient code density. The device also features a flexible clock tree with multiple internal and external oscillator options, including a 32 kHz RTC oscillator and a 4-32 MHz main crystal oscillator. The integrated DMA controller allows peripheral-to-memory data transfers without CPU intervention, reducing power consumption and improving system throughput. Typical applications include battery-powered sensor nodes, portable medical devices, smart meters, and industrial control systems. The STM32L100RCT6 is particularly well-suited for applications requiring long battery life, such as wireless sensor networks and wearable devices, where its ultra-low-power modes and fast wake-up times are critical. Its rich peripheral set also enables it to handle complex tasks like data logging, signal processing, and communication protocol implementation. When designing with this device, it is essential to carefully manage the power supply and decoupling. Use a 100 nF capacitor close to each VDD pin and a 1 µF capacitor on the VDDA pin. Additionally, configure the clock system to use the low-speed internal oscillator (LSI) for the RTC to minimize power consumption in standby mode. Properly configure the GPIO pins to analog mode when unused to reduce leakage current.

USD $4,30 Auf Lager

STM32L151C8T6

STM32L151C8T6 - 32-bit ARM Cortex-M3 MCU, 64KB Flash | STMicroelectronics

The STMicroelectronics STM32L151C8T6 is a 32-bit ARM Cortex-M3 microcontroller from the STM32L1 ultra-low-power series, operating at up to 32 MHz with 64 KB of Flash memory and 16 KB of SRAM. It is housed in a 48-pin LQFP package and supports a wide supply voltage range of 1.8V to 3.6V, making it ideal for battery-powered and energy-harvesting applications. Data verified as of 2026-08-05. What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It integrates a processor core, memory (Flash and SRAM), and programmable input/output peripherals on a single chip. The STM32L151C8T6 belongs to the STM32L1 family, which is part of the broader STM32 portfolio of 32-bit ARM Cortex-M microcontrollers. This hierarchy places it within the ARM Cortex-M3 core category, known for its balance of performance and power efficiency, and ultimately within the semiconductor industry's embedded processing segment. Key features include multiple low-power modes (Sleep, Low-power Run, Low-power Sleep, Stop with RTC, Standby with RTC), a 12-bit ADC with 16 channels, two 12-bit DACs, and a rich set of communication interfaces including I2C, SPI, USART, and USB 2.0. The device also integrates a real-time clock (RTC) with backup registers, and a variety of timers including advanced-control, general-purpose, and basic timers. Its ultra-low-power design achieves typical current consumption as low as 230 µA in Run mode at 32 MHz and 1.1 µA in Standby mode with RTC, enabling extended battery life. Technically, the STM32L151C8T6 is built on a 130 nm process technology, which contributes to its low leakage and power efficiency. The Cortex-M3 core includes a hardware divider and single-cycle multiply, and supports Thumb-2 instruction set for code density. The device features a nested vectored interrupt controller (NVIC) for deterministic interrupt handling, and a memory protection unit (MPU) for enhanced application robustness. The embedded Flash supports read-while-write, allowing firmware updates without halting execution. Typical applications include portable medical devices (e.g., glucose meters, pulse oximeters), smart sensors for IoT nodes, industrial process control, and consumer electronics such as fitness trackers and smartwatches. Its low-power modes and rich analog peripherals make it particularly suited for applications requiring long battery life and precise analog measurements. When designing with this MCU, pay careful attention to the power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 4.7 µF capacitor on the main supply. Also, configure the clock source appropriately—using the internal 16 MHz HSI oscillator can save cost, but for accurate timing, an external 32.768 kHz crystal for the RTC is recommended. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the ST datasheet, providing a comprehensive resource for engineers evaluating the STM32L151C8T6.

USD $2,88 Auf Lager

STM32L151CCT6

STM32L151CCT6 - 32MHz Cortex-M3 256KB Flash MCU LQFP-48 | STMicroelectronics

The STMicroelectronics STM32L151CCT6 is an ultra-low-power 32-bit ARM Cortex-M3 microcontroller with 256KB Flash, 32KB SRAM, and 8KB EEPROM, packaged in a 48-pin LQFP (7x7 mm). It runs at up to 32 MHz CPU frequency and integrates USB Full-Speed, two operational amplifiers, multiple 12-bit ADCs, two 12-bit DACs, and the standard STM32L1 peripheral set. The 256KB Flash version places this part at the top of the STM32L151 line. What is an ultra-low-power MCU? An ultra-low-power microcontroller is a class of MCU built on processes with sub-threshold leakage optimization, dedicated low-power analog IPs, and dynamic voltage scaling that allows active-mode current in the order of a few hundred microamperes per MHz and deep-sleep currents below one microampere. These parts occupy the power-management branch of the broader microcontroller taxonomy: MCU -> 32-bit MCU -> ARM Cortex MCU -> ultra-low-power MCU -> embedded system. The STM32L1 family was the first ST line to commercialize this concept using a proprietary 130 nm ultra-low-leakage process. Key differentiating features of the STM32L151CCT6 include seven low-power modes (with Stop mode current as low as 0.43 uA typical and Standby current of 0.27 uA typical), up to 20 capacitive sensing channels for touch applications, an integrated 4 mA low-power internal oscillator, and 1.8 V to 3.6 V operating range from a single supply. The dual op-amps and comparators feed sensor-conditioning analog front ends without external active components. Architecturally, the device pairs the Cortex-M3 core with a multi-power-domain AHB/APB bus matrix, allowing peripherals to be clock-gated individually. A built-in voltage regulator supports dynamic voltage scaling between 1.2 V and 1.8 V core domains to trade speed for current on demand. The 12-bit ADC is oversample-capable to 16-bit equivalent resolution. Typical applications include battery-powered IoT sensor nodes, wearable health monitors, smart meters, remote controls, BLE/ZigBee host MCUs, and industrial sensor transmitters. The wide 1.8-3.6 V supply range plus deep sleep current makes it a strong fit for energy-harvesting designs. When designing with this MCU, allocate a 100 nF decoupling cap per VDD pin and a 4.7 uF bulk capacitor near the VCAP pins; the voltage regulator requires these to remain stable across all low-power mode transitions. This page synthesizes XAIPART distributor data, drop-in alternatives from web cross-references, and practical design guidance beyond what is summarized in the manufacturer datasheet.

USD $5,20 Auf Lager

STM32L151CCT6TR

STM32L151CCT6TR - 256KB Flash Cortex-M3 MCU LQFP-48 | STMicroelectronics

The STMicroelectronics STM32L151CCT6TR is an ultra-low-power 32-bit ARM Cortex-M3 microcontroller with 256 Kbytes of Flash memory, 32 Kbytes of SRAM, and a 32 MHz CPU, housed in a 48-pin LQFP (7x7 mm) tape-and-reel package. The device integrates a full-speed USB 2.0 Full-Speed interface, two operational amplifiers, multiple 16-bit timers, and the ST ART Accelerator for zero-wait-state execution from Flash, enabling the demanding signal-processing throughput typical of STM32 mainstream parts while remaining in the STM32L1 ultra-low-power family. An ARM Cortex-M3 microcontroller is a 32-bit RISC processor core designed for embedded applications, balancing deterministic interrupt response, Thumb-2 instruction efficiency, and a rich peripheral ecosystem. The STM32L151CCT6 belongs to the STM32L1 ultra-low-power family: STM32L1 MCU -> ARM Cortex-M MCU -> 32-bit microcontroller -> embedded MCU -> semiconductor IC. Compared with legacy 8-bit or 16-bit microcontrollers, Cortex-M3 devices deliver higher code density, hardware divide, integrated DMA, and standardized CMSIS firmware libraries. The 'L' classification emphasizes dynamic voltage scaling and multiple low-power modes that allow battery-powered designs to operate for years on a single cell. Key features include a wide 1.65 V to 3.6 V supply range, 7 low-power modes (including a 4.4 uA Stop mode with RTC retention), an integrated LCD controller with built-in voltage booster, a 12-bit ADC with up to 1 Msps, two DACs, and a USB Full-Speed device/host/OTG transceiver with internal pull-up. The two on-chip rail-to-rail op-amps can drive ADC inputs or be used for power management loops, offloading external analog components. Hardware AES 128-bit encryption is included for secure firmware update and data protection. Architecture is built on the Cortex-M3 core with ST's proprietary ART Accelerator prefetch buffer and a multi-voltage I/O ring that allows the I/O voltage to be set independently of the core supply. The device integrates a brown-out reset (BOR) in Stop mode, a programmable voltage detector (PVD), two independent watchdogs, and a real-time clock with calendar and alarm. Internal oscillators (16 MHz HSI and 37 kHz LSI) reduce external component count, while the 4 MHz MSI RC oscillator is automatically trimmed against the LSE crystal for accurate timing during Sleep and Run modes. Typical applications include battery-powered sensor nodes, wearable health monitors, energy-harvesting devices, smart meters, industrial sensor transmitters, USB Human Interface Devices (HIDs), and portable medical diagnostic instruments where standby current is measured in microamps and operating current must remain under 10 mA for weeks of autonomy. The integrated op-amps also suit low-side current sensing in motor control and e-bike torque pedals. Designers should note that the LQFP-48 (7x7 mm) package leaves approximately 4 mm2 of exposed pad-free copper per side, and Pin 1 is the top-left indicator on the tape orientation. A 4-layer PCB with a continuous ground pour is strongly recommended for digital noise immunity and to keep the USB DP/DM traces at 90 ohm differential impedance. This page synthesizes ST datasheet specifications, distributor pricing snapshots, pin-compatible alternatives drawn from the STM32L1 family, and practical design notes not found in the manufacturer reference manual alone.

USD $4,10 Auf Lager

STM32L151R8T6ATR

STM32L151R8T6ATR - 64KB Flash Cortex-M3 MCU | STMicroelectronics

The STMicroelectronics STM32L151R8T6ATR is an ultra-low-power ARM Cortex-M3 microcontroller with 64KB Flash and 32MHz CPU, housed in a 64-pin LQFP (10x10x1.4mm) package. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and programmable peripherals. Ultra-low-power MCUs target battery-operated and energy-harvesting applications by combining a low-leakage process technology with multiple low-power modes (Sleep, Low-Power Sleep, Stop with RTC, Standby) that draw microamp-level quiescent current. Within the broader taxonomy, the STM32L1 sits below application processors (Cortex-A), above simple 8-bit MCUs, and is positioned for always-on sensing, metering, and human-interface designs where months-to-years battery life matter more than raw throughput. Key specifications include 64KB Flash, 10KB SRAM (per the STM32L1 datasheet family), an internal 32kHz RTC oscillator, multiple timer/counter peripherals, I2C/SPI/USART/USB interfaces, 12-bit ADC, and a 1.8V-3.6V supply range. The device supports seven low-power modes with a typical Stop-mode current in the microamp range, enabling coin-cell powered designs. The Cortex-M3 core implements the Thumb-2 instruction set, NVIC for interrupt handling, and is supported by ST's STM32Cube ecosystem including HAL, LL drivers, and STM32CubeIDE. Peripherals include up to 83 fast GPIOs, a real-time clock with calendar, brown-out reset, and a 12-bit ADC. Typical applications include portable medical devices, industrial sensor nodes, smart meters, fitness wearables, and home automation controllers. The 64KB Flash / 10KB RAM balance targets small to mid-tier firmware stacks including BLE software stacks via external transceivers. Design with adequate decoupling (100nF + 4.7uF) on each VDD pin and keep the NRST line short with a 100nF capacitor to ground. Use the STM32CubeMX configuration tool to assign pin alternate functions and validate clock tree settings. This page synthesizes distributor pricing, lifecycle status, same-family alternatives, and practical design notes not consolidated in the manufacturer datasheet.

USD $2,65 Auf Lager

STM32L151RCT6

STM32L151RCT6 - 32MHz Cortex-M3, 256KB Flash MCU | STMicroelectronics

The STMicroelectronics STM32L151RCT6 is an ultra-low-power 32-bit ARM Cortex-M3 microcontroller running at 32 MHz with 256 KB of Flash memory and 64 pins in an LQFP (10x10 mm) package. It integrates USB 2.0 full-speed device, three operational amplifiers, and five low-power modes for battery-critical designs. An ultra-low-power MCU is a microcontroller engineered to minimize energy per operation and standby consumption, sitting within the broader hierarchy of ARM Cortex-M-based microcontrollers under the power-management-optimized IC family. The STM32L1 series uses STMicroelectronics proprietary ultra-low-leakage process technology with autonomous dynamic voltage scaling, allowing the core to run from a scaled supply without external regulation complexity. Key features include 256 KB Flash and 32 KB of ECC-enabled RAM, a 32 MHz Cortex-M3 core, USB FS device support, and 3x integrated op-amps that offload analog signal conditioning from external components. The device operates from a 1.65 V to 3.6 V supply and offers multiple low-power modes down to a low-leakage standby state, making it suited for energy-scavenging and coin-cell products. Technically, the autonomous dynamic voltage scaling regulator adjusts core voltage to the operating frequency, cutting dynamic power while preserving wake-up latency. The five low-power modes (Sleep, Low-power Run, Low-power Sleep, Stop, Standby) let designers trade wake-up time against current draw precisely. Typical applications include battery-powered metering, portable medical monitoring, and industrial sensor nodes using USB connectivity for configuration and data upload. A key design consideration: in Stop and Standby modes the low-speed oscillator domain remains critical for RTC-based wake-up, so layout and clock tree configuration deserve early attention. This page synthesizes distributor pricing, drop-in alternatives, pinout, and practical design notes not found in the manufacturer datasheet alone.

USD $3,85 Auf Lager

STM32L151VCT6

STM32L151VCT6 - 256KB Flash Cortex-M3 MCU | STMicroelectronics

The STMicroelectronics STM32L151VCT6 is an ultra-low-power 32-bit ARM Cortex-M3 microcontroller with 256 Kbytes of Flash, 32 Kbytes of SRAM, and a 32 MHz CPU, housed in a 100-pin LQFP (14x14 mm) package. According to the ST product page, this device is part of the STM32L1 family, integrates USB FS, three rail-to-rail operational amplifiers, a 12-bit ADC, multiple timers, and standard communication peripherals. What is an ultra-low-power MCU? An ultra-low-power microcontroller is a class of embedded processor specifically designed to minimize active and standby current consumption so that battery-powered products can operate for months or years on a single cell. The technology hierarchy is: MCU -> microcontroller -> embedded processor -> semiconductor IC. The STM32L1 family extends ST's mainstream STM32 architecture into energy-harvesting, metering, medical, and IoT segments where quiescent current in the microampere range and flexible low-power modes are critical. Key features highlighted in the datasheet include seven low-power modes (including Stop and Standby with RTC), a wide 1.65-3.6 V supply range, up to 83 general-purpose I/Os, a 12-bit 1 Msps ADC, two 12-bit DACs, USB 2.0 Full-Speed device, three op-amps, two comparators, and a real-time clock with calendar. The integrated voltage regulator and power-on reset simplify external circuitry, while the Cortex-M3 core supports Thumb-2 instruction set for high code density. The STM32L151VCT6 uses a 32 kHz and an internal 16 MHz high-speed RC oscillator with PLL, eliminating external crystals in many designs. JTAG and SWD debug interfaces support standard toolchains including Keil MDK, IAR EWARM, and STM32CubeIDE. AES 128-bit hardware encryption is included in this density variant of the STM32L1 line for secure connectivity use cases. Typical applications include battery-operated sensor nodes, USB peripherals (HID, CDC), portable medical devices, smart-home IoT endpoints, energy-harvesting designs, and industrial metering. The combination of USB, op-amps, and low-power modes is particularly attractive for compact measurement instruments that must communicate with a host PC. When designing with the STM32L151VCT6, select decoupling capacitors of 100 nF near each VDD pin plus a 4.7 uF bulk capacitor. Verify unused pins are tied to a defined logic level to avoid parasitic current paths. The LQFP-100 footprint has 0.5 mm pitch - use 4-layer PCB with controlled impedance for USB D+/D- traces. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $4,32 Auf Lager

STM32L151VCT6A

STM32L151VCT6A - 256KB Flash 32MHz Cortex-M3 MCU | STMicroelectronics

The STMicroelectronics STM32L151VCT6A is an ultra-low-power 32-bit ARM Cortex-M3 microcontroller with 256KB of Flash memory, 32KB of SRAM, and a 32MHz CPU, housed in a 100-pin LQFP (14x14mm) package. The 'A' suffix denotes the industrial-grade operating temperature range (-40C to +85C) and tape-and-reel packaging. As part of the STM32L1 family, it targets battery-powered and energy-harvesting applications where every microamp counts. A microcontroller (MCU) is a single-chip computer integrating a CPU core, volatile memory (SRAM), non-volatile memory (Flash), and programmable peripherals into one package. The STM32L1 series specifically occupies the 'ultra-low-power' tier of the MCU taxonomy - sitting between general-purpose Cortex-M0/M3 microcontrollers and dedicated signal-processing MCUs - and is hierarchically classified as: microcontroller -> embedded processor -> semiconductor. The L1 family uses ST's proprietary ultra-low-leakage process and an innovative autonomous dynamic voltage scaling (DVS) topology. Key features include 4KB of true EEPROM (a rare find on Cortex-M MCUs), 12-bit ADC, 12-bit DAC, multiple low-power modes (Standby, Stop, Sleep) drawing as little as 1.4 uA in Stop mode with RTC retention, and a built-in USB 2.0 Full-Speed controller with on-chip transceiver. The 100-LQFP package exposes up to 83 GPIO across multiple 5V-tolerant ports, plus USART, SPI, I2C, USB, CAN, and timers. The Cortex-M3 core delivers 1.25 DMIPS/MHz (Dhrystone MIPS) while supporting Thumb-2 instructions for code density. The integrated voltage regulator dynamically scales the internal core voltage based on clock frequency, enabling the dynamic voltage scaling that defines the L1 family. Five low-power modes - Sleep, Low-Power Sleep, Stop with RTC, Standby, and Standby with RTC - allow energy budgets as low as 9 uA/MHz active and 1.4 uA Stop. Typical applications include wearable fitness bands, portable medical sensors, wireless sensor nodes, smart meters, industrial remote controls, and battery-backed IoT devices. The 256KB Flash is sufficient for RTOS-based designs using FreeRTOS or for BLE/ZigBee stacks when paired with a network co-processor. The integrated 4KB EEPROM eliminates the need for external EEPROM in many designs, simplifying BOM and lowering cost. When designing with the STM32L151VCT6A, choose the LQFP-100 footprint for hand-rework-friendly prototypes and migration to other L1 family parts. Verify your Stop-mode current budget against the 1.4 uA typical figure (it rises to several uA with RTC enabled). For 1.8V-3.6V supply, internal voltage regulation is automatic; at lower voltages the integrated POR/PDR handles brownout reset. This page synthesizes distributor pricing from DigiKey and Mouser, drop-in alternatives within the same LQFP-100 package, and practical design notes not found in the manufacturer datasheet - giving engineers a faster path from part selection to prototype.

USD $5,12 Auf Lager

STM32L151VCT6D

STM32L151VCT6D - 32MHz Cortex-M3 MCU 256KB Flash | STMicroelectronics

The STMicroelectronics STM32L151VCT6D is an ultra-low-power 32-bit ARM Cortex-M3 microcontroller with 256 Kbytes of Flash, 32 Kbytes of SRAM, and 8 Kbytes of true EEPROM, packaged in a 100-pin LQFP (14x14 mm). Operating at up to 32 MHz, it integrates USB 2.0 Full-Speed, three operational amplifiers, a 12-bit ADC and DAC, an LCD controller, and a wide range of peripherals designed for battery-powered and energy-harvesting applications. A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable I/O peripherals. The Cortex-M3 architecture used in the STM32L151 family provides a 32-bit instruction set with deterministic interrupt handling, sitting in the broader hierarchy ARM Cortex-M -> 32-bit MCU -> embedded processor -> semiconductor. Within ST's portfolio, the STM32L1 series is positioned in the ultra-low-power (ULP) tier, competing with the MSP430 (Texas Instruments) and the EFM32 (Silicon Labs) families. Key specifications include the 256 Kbyte Flash program memory, 32 Kbyte SRAM, 8 Kbyte EEPROM, an operating voltage range of 1.65 V to 3.6 V, a maximum CPU speed of 32 MHz, and an extended industrial temperature range of -40 C to +105 C. The integrated 12-bit ADC delivers up to 1 Msps with multiple channels, while the 12-bit DAC supports low-power waveform generation. Three on-chip op-amps enable direct analog signal conditioning without external components, simplifying sensor-interface designs. The 100-pin LQFP package provides ample GPIO for complex peripheral routing. USB 2.0 Full-Speed with on-chip PHY, multiple USART/UART/SPI/I2C interfaces, and an 8x40 (or 4x44) segment LCD controller make this device well suited for human-machine interfaces and connected sensor nodes. Deep power modes (Standby, Stop with RTC) reach sub-microamp currents, enabling multi-year battery life in metering and IoT applications. Typical applications include industrial wireless sensor nodes, portable medical monitors, smart meters, home automation gateways, asset-tracking tags, and ultra-low-power data loggers. The integrated op-amps are commonly used to amplify signals from thermocouples, photodiodes, and Wheatstone-bridge sensors. When designing with this device, take advantage of the integrated op-amps to reduce BOM and PCB area, but verify that the op-amp bandwidth and rail-to-rail input range meet your sensor signal requirements. The on-chip EEPROM (rather than emulated EEPROM in Flash) provides 100 k erase/write cycles endurance, simplifying data logging. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

USD $5,38 Auf Lager

STM32L151VDT6

STM32L151VDT6 - Ultra-Low-Power ARM Cortex-M3 MCU | STMicroelectronics

The STMicroelectronics STM32L151VDT6 is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M3 core, operating at up to 32 MHz. It features 384 KB of Flash memory and 48 KB of SRAM, making it suitable for a wide range of battery-powered and energy-efficient applications. The device is housed in a 100-pin LQFP package (14x14 mm) and supports a supply voltage range of 1.8V to 3.6V. What is an ultra-low-power microcontroller? An ultra-low-power microcontroller is a type of embedded processor designed to minimize energy consumption while maintaining computational capability. It typically integrates multiple low-power modes, such as sleep, stop, and standby, to reduce power draw during idle periods. In the system hierarchy, an ultra-low-power MCU falls under the category of microcontrollers, which are part of embedded systems and integrated circuits. The STM32L1 series is specifically optimized for applications where battery life is critical, such as portable medical devices, smart sensors, and wireless communication nodes. Key features of the STM32L151VDT6 include multiple low-power modes (Sleep, Low-power Run, Low-power Sleep, Stop with RTC, Stop without RTC, Standby with RTC, Standby without RTC), a 12-bit ADC with 1 Msps, two 12-bit DACs, and a wide range of communication interfaces including USART, SPI, I2C, USB, and CAN. The device also integrates a real-time clock (RTC) with calendar and alarm functions, and a true EEPROM emulation capability. Technically, the STM32L151VDT6 is built on a 130nm process technology, which contributes to its low power consumption. The core operates at 1.8V to 3.6V, and the device can run at up to 32 MHz. The Flash memory is organized with 4x64 KB sectors, and the SRAM is 48 KB. The device supports a wide operating temperature range of -40°C to +85°C, making it suitable for industrial applications. Typical applications include portable medical devices (e.g., glucose meters, pulse oximeters), smart meters, wireless sensor nodes, and industrial control systems. The ultra-low-power modes allow the MCU to operate for years on a single coin cell battery in applications with low duty cycles. When designing with this device, it is important to consider the power supply decoupling: place a 100nF capacitor close to each VDD pin and a 4.7uF capacitor at the main power input. Additionally, the VBAT pin should be connected to a backup battery or a capacitor to maintain RTC operation during main power loss.

USD $5,60 Auf Lager

STM32L152R6T6A

STM32L152R6T6A - 32KB Flash Cortex-M3 MCU w/ USB & LCD

The STMicroelectronics STM32L152R6T6A is an ultra-low-power 32-bit ARM Cortex-M3 microcontroller with 32 KB of Flash, 32 MHz CPU, integrated LCD driver and full-speed USB 2.0 connectivity, housed in a 64-pin LQFP (10x10 mm) package. It is part of the STM32L1 ultra-low-power family with the "-A" automotive suffix, supporting 1.65 V to 3.6 V supply operation and embedding up to 10 KB of SRAM plus 4 KB of true EEPROM. An ARM Cortex-M3 microcontroller is a 32-bit RISC processor core designed for embedded applications that require deterministic real-time response, low interrupt latency, and high code density through the Thumb-2 instruction set. In the broader taxonomy, the STM32L152 sits at the intersection of microcontroller (MCU), ultra-low-power MCU, mixed-signal MCU (with LCD + USB), and 32-bit MCU. The STM32L1 family is the silicon ancestor of the STM32L0, L4, L4+, U5 and H5 lines, all sharing ST's ultra-low-power工艺 philosophy and the Cortex-M lineage. Key differentiating features include five low-power modes (Sleep, Low-Power Sleep, Stop with RTC, Standby with RTC, and Stop without RTC) reaching 1.4 µA in Stop-with-RTC, an integrated LCD driver for up to 8x40 segments directly driving glass, a 12-bit ADC and 12-bit DAC, multiple timers, and a USB 2.0 full-speed device/host/OTG controller. The embedded voltage regulator, multiple DMA controllers, and the standard STM32 peripheral set (USART, SPI, I2C, USB, GPIO) make it a system-in-package for many battery-powered designs. Architecturally, the Cortex-M3 core runs up to 32 MHz with 1.25 DMIPS/MHz, paired with ST's ultra-low-power工艺 and a 1.8 V internal core domain. The ART Accelerator (no instruction-cache pre-fetch on L1, but a flash-accelerator block) keeps execution deterministic from Flash, and the MPU supports up to 8 regions. Compared with the older STM32F1 series, the L1 trades raw MHz for dramatically lower active and standby power. Typical applications include battery-powered metering (gas/water/heat) with direct LCD readout, portable medical sensors, fitness wearables, GPS asset trackers, and industrial sensor nodes requiring USB-CDC for service. The integrated LCD driver saves a costly external charge-pump driver and lets a single chip display digits on a static, multiplexed or capacitive-effect glass. When designing with this device, choose the LQFP-64 (R suffix in the line-up) over QFN if you need hand-rework-friendly pins or expect hand-prototype workflows; QFN variants are footprint-compatible at the die level but require careful PCB thermal design. Verify the LCD glass type (static, 1/2, 1/3, 1/4 duty, and bias) and segment count early in the schematic phase - the LCD peripheral supports up to 8 commons, but pin budget and alternate-function remap must be planned. This page synthesizes distributor pricing, drop-in alternatives across the STM32L1 line, automotive-grade sibling MPNs, and practical low-power design notes that go beyond what is on the ST datasheet alone.

USD $3,10 Auf Lager

STM32L162QDH6TR

STM32L162QDH6TR - 384KB Flash Cortex-M3 MCU | STMicroelectronics

The STMicroelectronics STM32L162QDH6TR is an ultra-low-power ARM Cortex-M3 microcontroller with 384 Kbytes of Flash and 32 Kbytes of SRAM, housed in a 132-ball UFBGA (7x7 mm) package. It runs at up to 32 MHz, integrates an integrated LCD controller (up to 8x40 segments), USB 2.0 Full-Speed, AES-128 hardware encryption, and a rich analog/digital peripheral set, making it well suited to mid-RAM-profile battery-powered sensing and control applications. A Cortex-M3 microcontroller is a 32-bit ARM processor core (ARMv7-M architecture) with Thumb-2 instruction support, designed for deterministic embedded workloads with low interrupt latency. It sits in a hierarchy of MCU -> 32-bit MCU -> ARM Cortex-M -> low-power MCU, and the STM32L1 family specifically targets ultra-low-power applications consuming as little as sub-uA in standby while integrating rich analog peripherals that would normally require external ICs. Key features include ARM Cortex-M3 core running up to 32 MHz, 384 KB Flash, 32 KB SRAM, 12 KB EEPROM (true data EEPROM, emulated), an integrated USB 2.0 FS device/host/OTG controller, AES-128 hardware crypto block, two operational amplifiers, two 12-bit DACs, two 12-bit ADCs (1 Msps), two comparators, RTC, and seven low-power modes (Low-power Run, Sleep, Low-power Sleep, Stop with RTC, Standby with RTC, Standby). Operating voltage is 1.8 V to 3.6 V with BOR enable. The architecture combines a Cortex-M3 core, integrated voltage regulator with multiple low-power domains, an ART Accelerator-style flash front-end, and a flexible DMA matrix (7 channels). The peripheral set - timers (general-purpose, basic, systick), SPIs (3x), I2C (2x), USARTs (3x), USB, CAN, SDIO, and FSMC - is coherently mapped to a 132-pin BGA footprint that exposes up to 106 fast GPIOs. Typical applications include portable medical and health-monitoring devices, smart-metering and industrial sensor hubs, wearables, USB peripherals running from battery, secure IoT end-nodes leveraging the AES engine, and LCD-panel human-machine interfaces (HMIs). The 132-ball UFBGA is preferred over LQFP for space-constrained handhelds and wearables where every square millimeter matters. When designing with this part, pay close attention to decoupling: a 100 nF ceramic must sit within 2 mm of each VDD/VDDA pin pair, and the integrated regulator requires its own bulk + bypass network. The datasheet's application circuit shows a typical ultra-low-power sensor node with the MCU spending most of its time in Stop-mode with RTC, waking on a comparator interrupt for sub-uW average draw. This page synthesizes distributor pricing, drop-in alternatives in the same STM32L1 family, and practical design notes not consolidated on any individual manufacturer or distributor page.

USD $5,10 Auf Lager

STM32L162RCT6

STM32L162RCT6 - Ultra-Low-Power ARM Cortex-M3 MCU | STMicroelectronics

The STMicroelectronics STM32L162RCT6 is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M3 core, operating at frequencies up to 32 MHz. It features 256 KB of Flash memory and 32 KB of SRAM, along with a rich set of peripherals including USB, LCD, and AES encryption. The device is housed in a 64-pin LQFP package, making it suitable for space-constrained applications. An ultra-low-power microcontroller (MCU) is a system-on-chip that integrates a processor core, memory, and peripherals, designed to minimize energy consumption while maintaining computational capability. The STM32L1 series is STMicroelectronics' flagship low-power family, targeting battery-powered and energy-harvesting applications. It sits within the broader hierarchy of embedded microcontrollers, which are the building blocks of IoT devices, portable medical equipment, and smart sensors. Key features of the STM32L162RCT6 include multiple low-power modes (Sleep, Low-power Run, Low-power Sleep, Stop with RTC, Standby with RTC), a 12-bit ADC with 1 Msps, a 12-bit DAC, and an embedded AES-128 encryption engine. The device also integrates a real-time clock (RTC) with calendar and alarm functions, and supports a wide supply voltage range from 1.8V to 3.6V. The ultra-low-power design achieves a typical current consumption of 3.4 µA in Stop mode with RTC, and 0.27 µA in Standby mode. The STM32L162RCT6 is built on a 130nm low-leakage process technology, which is optimized for minimal static power consumption. The architecture includes a flexible clock tree with multiple internal and external oscillators, allowing designers to trade off performance for power. The AES hardware accelerator offloads cryptographic operations from the CPU, reducing energy consumption for secure communication. Typical applications include smart meters, medical devices (e.g., glucose monitors, hearing aids), industrial sensors, and portable consumer electronics. The integrated LCD controller supports up to 8x40 segments, making it ideal for battery-powered displays. The USB 2.0 full-speed device interface enables direct connectivity to hosts for data logging and firmware updates. When designing with this device, careful attention should be paid to the power supply decoupling and the selection of low-power modes to maximize battery life. The use of the internal low-speed oscillator (LSI) for the RTC can reduce external component count, but an external 32.768 kHz crystal provides better accuracy for timekeeping applications.

USD $2,86 Auf Lager

STM32L162RET6

STM32L162RET6 - Ultra-Low-Power ARM Cortex-M3 MCU | STMicroelectronics

The STMicroelectronics STM32L162RET6 is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M3 core, operating at up to 32 MHz. It features 512 KB of Flash memory and 80 KB of SRAM, along with a rich set of peripherals including USB, LCD, and AES encryption. The device is housed in a 64-pin LQFP package (LQFP64) and is designed for battery-powered and energy-efficient applications. An ultra-low-power microcontroller (MCU) is a type of embedded processor optimized for minimal power consumption, often featuring multiple low-power modes, low supply voltages, and efficient clock management. These MCUs are essential in battery-operated devices, IoT sensors, and portable medical equipment where extending battery life is critical. The STM32L1 series sits within the broader STM32 family, which spans from low-power to high-performance Cortex-M based MCUs, and is part of the ARM Cortex-M ecosystem. Key features of the STM32L162RET6 include a 32 MHz ARM Cortex-M3 core with memory protection unit (MPU), 512 KB Flash, 80 KB SRAM, and a comprehensive set of peripherals: USB 2.0 full-speed device, LCD controller supporting up to 8x40 segments, AES-128 hardware encryption, 12-bit ADC, 12-bit DAC, multiple timers, and communication interfaces (USART, SPI, I2C). It operates from 1.8V to 3.6V supply and features several low-power modes: Sleep, Low-power Run, Low-power Sleep, Stop with RTC, and Standby, with current consumption as low as 0.3 uA in Standby mode. The STM32L162RET6 is built on ST's ultra-low-power technology, which combines a low-leakage process with dynamic voltage scaling and a flexible clock gating architecture. This enables the MCU to achieve industry-leading energy efficiency, with a typical active-mode current of 230 uA/MHz. The integrated AES-128 encryption engine provides hardware-accelerated security for data protection, making it suitable for secure communication and authentication applications. Typical applications include smart meters, medical devices (e.g., glucose monitors, hearing aids), industrial sensors, IoT nodes, and portable consumer electronics. The LCD controller and USB interface make it ideal for human-machine interface (HMI) applications, while the AES engine supports secure data logging and communication. When designing with this device, pay attention to the power supply decoupling: place a 100 nF capacitor close to each VDD pin and a 4.7 uF capacitor at the main supply. Use the low-power modes effectively by configuring the RTC and wake-up sources to minimize average current consumption. The STM32L162RET6 is available in LQFP64 package, which is pin-compatible with other STM32L1 series devices in the same package, allowing easy migration.

USD $5,44 Auf Lager

STM32L162VET6

STM32L162VET6 - 512KB Flash Ultra-Low-Power MCU | STMicroelectronics

The STM32L162VET6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the ARM Cortex-M3 core running at up to 32 MHz. It integrates 512 KB of Flash memory and 80 KB of SRAM, along with a rich set of peripherals including USB, LCD controller, AES encryption, and multiple communication interfaces. Housed in a 100-pin LQFP package, this device is designed for battery-powered and energy-efficient applications. An ultra-low-power microcontroller (MCU) is a system-on-chip that combines a processor core, memory, and peripherals while minimizing power consumption to extend battery life. The STM32L1 series is STMicroelectronics' flagship ultra-low-power family, positioned within the broader hierarchy of microcontrollers -> 32-bit MCUs -> ARM Cortex-M based MCUs -> STM32 family. These devices are essential in IoT, wearable, and portable medical devices where energy efficiency is critical. Key features include multiple low-power modes (Sleep, Low-power Run, Low-power Sleep, Stop with RTC, Standby with RTC), a 12-bit ADC with hardware oversampling, a 12-bit DAC, an LCD driver supporting up to 8x40 segments, and an AES-128 hardware encryption engine. The device operates from 1.8V to 3.6V and supports a wide temperature range of -40°C to +85°C. Its ultra-low-power design achieves 230 µA/MHz in Run mode and 0.3 µA in Standby mode with RTC, making it ideal for energy-harvesting and long-life battery applications. The STM32L162VET6 is built on a 130nm ultra-low-leakage process technology, enabling industry-leading power efficiency. The Cortex-M3 core includes a memory protection unit (MPU) and supports single-cycle multiplication and hardware division. The device features a flexible clock tree with multiple internal and external oscillators, including a 32 kHz RTC oscillator and a 16 MHz HSI RC oscillator, allowing designers to optimize performance versus power consumption. Typical applications include smart meters, medical devices such as glucose monitors and hearing aids, industrial sensors, and portable consumer electronics. The integrated LCD controller and AES encryption make it particularly suitable for secure, display-equipped battery-powered devices. The USB 2.0 full-speed interface with internal PHY enables direct connectivity to hosts for data logging and firmware updates. When designing with this MCU, careful attention to the power supply decoupling and clock configuration is essential. Use a 1 µF and 100 nF capacitor pair on each VDD pin, and select the appropriate low-power mode based on wake-up latency requirements. The STM32L162VET6 supports in-application programming (IAP) via USART, SPI, or USB, facilitating field firmware updates.

USD $5,44 Auf Lager

STM32L162ZD

STM32L162ZD - 384KB Flash Cortex-M3 MCU w/ LCD | STMicro

The STMicroelectronics STM32L162ZD is an ultra-low-power Arm Cortex-M3 microcontroller with 384 Kbytes of Flash memory, 32 MHz CPU, integrated LCD driver, USB 2.0 full-speed, three operational amplifiers, and hardware AES-128 encryption, packaged in a 144-pin LQFP (20x20 mm). It belongs to the STM32L1 series, designed for energy-sensitive applications where sleep-mode current and active-mode efficiency are critical design parameters. A microcontroller (MCU) is a single-chip computer integrating a CPU core, Flash program memory, SRAM data memory, and a rich set of peripherals such as timers, ADC/DAC, communication interfaces (UART/SPI/I2C/USB/CAN), and I/O ports. The STM32L1 family is built around the Cortex-M3 core and is positioned as an ultra-low-power platform — sitting in the broader hierarchy of ARM Cortex-M MCUs -> 32-bit microcontrollers -> embedded processors. The STM32L162ZD specifically adds USB, AES, LCD segment driver, three rail-to-rail op-amps, and 12 Kbytes of true EEPROM emulation on top of 48 Kbytes SRAM. Key features include 384 Kbytes of Flash, 48 Kbytes of SRAM, 12 Kbytes of EEPROM, Cortex-M3 with FPU-less MPU running up to 32 MHz, up to 114 general-purpose I/Os, a 12-bit ADC (1 Msps), two 12-bit DACs, two comparators, two op-amps (plus one more for signal conditioning), a segment LCD driver supporting up to 8x40 segments, USB FS device, three I2C, two SPI, three USART plus two UARTs, one CAN, AES-128 hardware crypto, and a real-time clock with calendar. The seven main low-power modes (Sleep, Low-power sleep, Stop with RTC, Standby with RTC, Stop without RTC, Standby without RTC, and Power-down) draw as little as a few microamperes with RTC retention. The STM32L162 line uses a 1.8 V to 3.6 V supply range and is engineered around the ST ultra-low-leakage 130 nm process with on-chip voltage scaling. The integrated op-amps and comparators remove the need for external analog front-end circuitry in sensor-conditioning applications, while the AES block accelerates encrypted communication without loading the CPU. The flexible static memory controller (FSMC) enables external SRAM/NOR/NAND expansion when design requirements exceed the on-chip 384 Kbytes. Typical applications include battery-powered IoT nodes, portable medical monitors, smart meters, industrial sensor hubs, USB peripherals, and LCD-keypad user-interface modules. The combination of op-amps, ADC, DAC, and AES makes it especially suitable for secure wireless sensor nodes (paired with an external RF transceiver) and battery-backed metering systems with segmented LCD displays. When designing with this MCU, provide a clean 3.3 V LDO and place decoupling capacitors (100 nF + 4.7 uF bulk) within 5 mm of every VDD/VSS pair. The BOOT0 pin must be pulled correctly for production firmware boot, and unused I/Os should be configured as analog inputs to minimize leakage. Note that operating frequency at full 32 MHz requires VDD >= 2.1 V to stay within the voltage-scaling range. This page consolidates distributor pricing for the STM32L162ZD, identifies verified drop-in alternatives in the STM32L1 family and across-brand second sources, and packages practical design notes (decoupling, low-power mode entry/exit, op-amp biasing) that go beyond what the manufacturer datasheet alone provides.

USD $6,38 Auf Lager

STM32L162ZDT6

STM32L162ZDT6 - 32MHz Cortex-M3 MCU 384KB Flash USB AES | STMicroelectronics

The STMicroelectronics STM32L162ZDT6 is an ultra-low-power ARM Cortex-M3 32-bit microcontroller with 384KB Flash, 32 MHz CPU, USB 2.0 full-speed, hardware AES-128, segment LCD driver, RTC and 144-pin LQFP package. According to ST product documentation, the part integrates 384 KB of Flash, 48 KB of SRAM, 12-bit ADC, 12-bit DAC, multiple comparators, USB, USART, SPI, I2C, timers and AES, all in a 20x20 mm 144-LQFP. What is an ultra-low-power microcontroller? An ultra-low-power microcontroller is a category of embedded MCU optimized to consume the least energy in active and sleep modes. It belongs to the broader taxonomy microcontroller -> embedded processor -> semiconductor device. The STM32L1 family positions itself for battery-powered applications where every microamp counts, including metering, medical portables, IoT sensors and wearable electronics. Key features include 7 low-power modes, RTC with backup registers, integrated LCD driver up to 8x40, AES-128 hardware accelerator, USB 2.0 full-speed device with on-chip PHY, 12-bit ADC and DAC, multiple comparators, and up to 114 general-purpose I/Os on the 144-LQFP variant. The ARM Cortex-M3 core runs at 32 MHz, providing 1.25 DMIPS/MHz while drawing roughly 230 uA/MHz active, an order of magnitude lower than legacy Cortex-M3 microcontrollers. The device is built on a 130 nm ultra-low-leakage CMOS process with embedded Flash, and supports 1.8 V to 3.6 V supply operation. The architecture includes a nested vectored interrupt controller, bit-banding, MPU, and JTAG/SWD debug interfaces. Hardware AES-128 accelerates encryption with zero CPU load, while the LCD controller with charge pump drives segment displays directly. Typical applications include battery-powered medical instruments, wireless sensor nodes, smart metering, industrial control with HMI segment displays, asset tracking, and USB-enabled data loggers. The 384 KB Flash supports rich application firmware with over-the-air upgrade capability and protocol stacks such as USB, BLE through SPI, or LoRaWAN via external transceiver. When designing with the STM32L162ZDT6, carefully select the appropriate low-power mode (Stop, Standby, Sleep) based on wake-up latency and residual current budget. The USB peripheral requires a 1.5 kohm pull-up and proper PCB stack-up for signal integrity; the AES engine uses 128-bit key only. This page synthesizes distributor pricing, parametric comparison, and drop-in alternatives not found in the manufacturer datasheet. Engineers should cross-check the latest datasheet revision and errata before committing to a design.

USD $7,10 Auf Lager

STM32L412C8T6

STM32L412C8T6 - 80MHz Cortex-M4 MCU 64KB LQFP-48 | STMicroelectronics

The STMicroelectronics STM32L412C8T6 is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller with FPU, operating at up to 80 MHz and packaged in a 48-pin LQFP (T6) form factor. It integrates 64 Kbytes of Flash, 40 Kbytes of SRAM, and the STM32L4 family's signature FlexPowerControl architecture with an operating voltage range of 1.71 V to 3.6 V. What is an ultra-low-power Cortex-M4 MCU? This category of microcontroller combines a high-performance 32-bit Arm processing core (Cortex-M4 with single-precision FPU and DSP extensions) with extensive power-saving modes that allow it to draw microamps or even nanoamps in standby. In the broader semiconductor taxonomy, it sits below MCU > microcontroller > 32-bit embedded controller > semiconductor. STM32L412 parts target battery-powered and energy-harvesting designs where the M4's DSP/Math throughput is required but quiescent current must remain in the nA range. Key features of the STM32L412C8T6 include a USB 2.0 Full-Speed device interface (no host/OTG), up to 12 timers, a 12-bit ADC with up to 16 channels (5 Msps), two 12-bit DACs, two comparators, two operational amplifiers, a real-time clock with calendar, and 32x32-bit backup registers. ST's Chrom-GRC advanced peripherals also include an AES-256 hardware crypto accelerator and a true random number generator (TRNG) for IoT security. The architecture pairs a Cortex-M4 core running at 80 MHz (100 DMIPS / 273 CoreMark) with ST's low-power process technology. Seven low-power modes (including Shutdown at 16 nA typical, Standby at 300 nA typical, and VBAT mode at 300 nA for RTC retention) let system designers trade wake-up latency against quiescent current. The on-chip voltage regulator scales dynamically with load, and VBAT mode retains RTC and backup registers directly from a coin cell. Typical applications include battery-powered IoT sensor nodes, USB-C HID interfaces, wearable health monitors, industrial wireless sensors, asset tracking beacons, smart metering, and human-machine interface (HMI) controllers. The FPU and DSP extensions make it well suited for compact digital signal processing such as sensor fusion and predictive maintenance algorithms. When designing with this part, prioritize decoupling the VDDA supply with a 100 nF X5R ceramic placed within 2 mm of the pin. Ensure SWDIO/SWDCLK lines are routed short and away from switching nodes to avoid debug-acquisition noise. This page synthesizes real distributor pricing, drop-in compatible alternatives (same-brand STM32L4 family and cross-brand pin-compatible parts), and design notes not aggregated on a single manufacturer page.

USD $2,92 Auf Lager

STM32L412CBU6

STM32L412CBU6 - 80MHz Cortex-M4 128KB Flash MCU | STMicroelectronics

The STMicroelectronics STM32L412CBU6 is an ultra-low-power 32-bit ARM Cortex-M4 microcontroller with FPU, operating at up to 80 MHz, integrating 128 KB of Flash and 40 KB of SRAM in a 48-pin UFQFPN (7x7 mm) package. It targets battery-powered and energy-harvesting applications where every microamp counts, featuring FlexPowerControl with a 1.71V to 3.6V supply range and a 16 nA Shutdown current with four wakeup pins. An ARM Cortex-M4 microcontroller is a 32-bit RISC processor core designed for embedded systems, combining high computational performance with low power consumption. The Cortex-M4 specifically adds a single-precision floating-point unit (FPU) and DSP extensions, making it suitable for signal-processing tasks. The STM32L4 family further extends the architecture with ultra-low-power techniques (FlexPowerControl), placing it in the broader hierarchy of microcontroller -> embedded processor -> semiconductor device, optimized for IoT and wearable segments. Key features include a Cortex-M4 core with FPU delivering 100 DMIPS, 128 KB Flash with ECC, 40 KB SRAM, USB 2.0 Full-Speed with crystal-less operation, two DACs, one 12-bit ADC (5 Msps), two comparators, two operational amplifiers, and a built-in SMPS step-down converter for internal core supply. The UFQFPN-48 footprint integrates 38 GPIO pins supporting I2C, SPI, USART, LPUART, USB and CAN interfaces. The SMPS bypass mode enables direct core supply from a coin-cell or super-capacitor backup domain, while the VBAT mode retains 32x32-bit backup registers and the RTC drawing only 300 nA. Housed in a UFQFPN-48 package with a small 7x7 mm body, the device also features a true random number generator (TRNG), 128-bit AES hardware accelerator, and capacitive touch sensing support. Typical applications include wearable health sensors, low-end smart watches, industrial sensor nodes, USB-powered devices, smart metering, and battery-powered IoT endpoints. The combination of Cortex-M4 performance and sub-microamp standby modes makes the part particularly suited to products that wake briefly to perform a measurement, then return to deep sleep. When laying out the PCB, ensure the UFQFPN-48 exposed pad is soldered to a properly sized ground plane with thermal vias to limit junction temperature. Decouple VDD with 100 nF + 1 uF ceramics close to each supply pin, and follow ST reference designs for the SMPS inductor selection if the internal regulator is used.

USD $2,74 Auf Lager

STM32L412RBT6P

STM32L412RBT6P - 80MHz Cortex-M4 MCU 128KB Flash LQFP-64 | STMicroelectronics

The STMicroelectronics STM32L412RBT6P is an ultra-low-power 32-bit Arm Cortex-M4 microcontroller operating at up to 80 MHz with FPU and 100 DMIPS, integrating 128 KB of single-bank Flash memory and 40 KB of SRAM in a 64-pin LQFP (10x10 mm) package. The 'P' suffix denotes a specific tape-and-reel orientation variant offered in the same silicon and footprint as the standard STM32L412RBT6. The Cortex-M4 core is paired with a single-precision floating-point unit, an external SMPS support rail, and ST's ultra-low-power family peripherals. A microcontroller (MCU) is a complete computer-on-a-chip that integrates a CPU core, volatile and non-volatile memory, programmable I/O, timers, communication peripherals, and analog blocks into a single IC. MCU sits within the hierarchy: microcontroller -> embedded processor -> semiconductor -> integrated circuit. The Cortex-M4 family specifically targets mixed-signal and DSP-capable embedded applications where deterministic real-time performance is required, and the STM32L4 sub-family adds ultra-low-power operating modes for battery-powered products. Key features of the STM32L412RBT6P include 1.71 V to 3.6 V supply range, a 12-bit ADC with 5 Msps, two 12-bit DAC channels, three I2C, three SPI, three USART, one UART, one USB 2.0 full-speed device (with dedicated 48 MHz oscillator), one CAN 2.0B, and a True Random Number Generator (TRNG). On-chip peripherals also include four general-purpose 16-bit timers, two 16-bit low-power timers, two watchdog timers, RTC with calendar and alarm, and SysTick timer. The device supports four low-power modes: Shutdown (30 nA typical), Standby (120 nA), Stop with RTC (420 nA), and Sleep, all wake-up latency is under 8 us. The architecture uses ST's 90 nm ultra-low-leakage CMOS process with the ART Accelerator prefetch buffer that allows the core to operate at full 80 MHz even with low Flash access time. An integrated SMPS step-down converter and LDO regulator allow the device to internally generate Vcore while accepting a single supply input, reducing external BOM. The dedicated VBAT input enables RTC and backup-register retention from a coin cell when main VDD is removed. Typical applications include wearable fitness bands, IoT sensor nodes, smart metering, medical insulin pumps, industrial HMI panels, asset tracking modules, and USB-C powered human-interface devices. The 64-pin LQFP footprint is well-suited for hand-solderable prototypes and small-run industrial modules. Designers should configure unused I/O pins as analog inputs to minimize leakage and select the right low-power mode (Sleep, Low-Power Sleep, Stop 0/1/2, Standby, Shutdown) to balance wake-up latency against quiescent draw. Decoupling: place 100 nF + 4.7 uF bulk within 3 mm of the VDD pins, route VDD12 (SMPS output) with 2 oz copper to minimize ripple. The internal SMPS must be enabled via option bytes and requires a ferrite bead or filter on its VDD12 pin for clean operation. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical low-power design notes that are not consolidated in the manufacturer datasheet, including same-package STM32L412R family variants and competitor options.

USD $3,35 Auf Lager

STM32L431CBT6

STM32L431CBT6 - ARM Cortex-M4 80MHz MCU | STMicroelectronics

The STM32L431CBT6 is a 32-bit ARM Cortex-M4 microcontroller from STMicroelectronics, featuring a floating-point unit (FPU) and operating at a maximum frequency of 80 MHz. It is part of the STM32L4 series, designed for ultra-low-power applications with a rich set of peripherals. The device is housed in a 48-pin LQFP package (7x7 mm) and offers 128 KB of flash memory and 64 KB of SRAM. What is a microcontroller? A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory (flash and SRAM), and programmable input/output peripherals on a single chip. Microcontrollers are the brains of countless electronic devices, from automotive engine control units to IoT sensors and wearable health monitors. The STM32L431CBT6 belongs to the STM32L4 family, which is optimized for low power consumption without compromising performance, making it ideal for battery-powered and energy-harvesting applications. Key features of the STM32L431CBT6 include an ARM Cortex-M4 core with FPU, 80 MHz maximum clock speed, 128 KB flash, 64 KB SRAM, and a comprehensive set of peripherals such as multiple USARTs, SPIs, I2Cs, ADCs, DACs, timers, and a real-time clock. It also integrates a true random number generator (RNG), a CRC calculation unit, and a memory protection unit (MPU). The device supports a wide supply voltage range from 1.71V to 3.6V and operates over a temperature range of -40°C to +85°C. Technically, the STM32L431CBT6 leverages the ARM Cortex-M4 architecture with DSP instructions and a single-precision FPU, enabling efficient digital signal processing. The STM32L4 series is built on a low-power process technology, achieving ultra-low power consumption in run, sleep, and standby modes. The device includes multiple low-power modes, such as Sleep, Low-power run, Low-power sleep, Stop 0/1/2, and Standby, allowing designers to optimize energy usage based on application requirements. Typical applications include industrial sensors, IoT devices, smart home controllers, portable medical devices, and battery management systems. The combination of low power, high performance, and rich peripherals makes it suitable for applications requiring both computational capability and energy efficiency. When designing with this MCU, pay attention to power supply decoupling and proper grounding. Use a 100nF capacitor close to each VDD pin and a 4.7uF bulk capacitor. For low-power modes, configure the clock system and peripheral clocks appropriately to minimize current consumption. The STM32L431CBT6 supports in-circuit programming and debugging via SWD, facilitating firmware development. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the ST datasheet, providing a comprehensive resource for engineers evaluating the STM32L431CBT6.

USD $5,83 Auf Lager

STM32L431RCT6

STM32L431RCT6 - Ultra-Low-Power Cortex-M4 MCU 80MHz 256KB Flash | STMicroelectronics

The STM32L431RCT6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics, based on the high-performance Arm® Cortex®-M4 32-bit RISC core with floating-point unit (FPU). It operates at a frequency of up to 80 MHz and provides 256 KB of Flash memory and 64 KB of SRAM, making it suitable for a wide range of energy-efficient embedded applications. The device is housed in a 64-pin LQFP package (10x10 mm) and is part of the STM32L4 series, which is designed for low-power operation without compromising performance. A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals. The STM32L431RCT6 belongs to the STM32L4 family, which is part of the broader STM32 portfolio of 32-bit microcontrollers. These MCUs are widely used in industrial, consumer, and IoT applications where power efficiency and processing capability are critical. The Cortex-M4 core with FPU enables efficient digital signal processing and floating-point arithmetic, making it ideal for applications such as motor control, sensor fusion, and audio processing. Key features of the STM32L431RCT6 include its ultra-low-power modes, which allow it to achieve very low power consumption in standby and sleep modes, extending battery life in portable devices. It also integrates a rich set of peripherals, including multiple USARTs, SPIs, I2Cs, ADCs, DACs, timers, and a real-time clock. The device supports a wide operating voltage range of 1.71V to 3.6V, making it compatible with standard battery chemistries. Additionally, it features a 12-bit ADC with up to 16 channels, a 12-bit DAC, and an operational amplifier, enabling analog signal processing without external components. From a technical perspective, the STM32L431RCT6 leverages ST's advanced 90nm process technology, which contributes to its low power consumption and high performance. The core runs at up to 80 MHz, delivering 100 DMIPS (Dhrystone 2.1) performance. The device includes a memory protection unit (MPU) and a nested vectored interrupt controller (NVIC) for efficient interrupt handling. It also supports a wide range of communication interfaces, including USB 2.0 full-speed, CAN 2.0B, and SAI (serial audio interface), making it versatile for connectivity applications. Typical applications for the STM32L431RCT6 include industrial sensors, smart meters, portable medical devices, and IoT nodes. Its low-power characteristics make it particularly well-suited for battery-powered devices that require long operational lifetimes. The device also supports a variety of development tools, including STM32CubeIDE, STM32CubeMX, and the STM32CubeL4 firmware package, which simplifies software development and reduces time-to-market. When designing with the STM32L431RCT6, it is important to consider the power supply decoupling and PCB layout to ensure stable operation. The device requires a 100nF capacitor on each power pin and a 4.7uF capacitor on the main supply. Additionally, the VDDA pin should be connected to a clean analog supply to minimize noise in analog peripherals. Proper grounding and layout are essential to achieve the specified performance and low-power operation.

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