STMicroelectronics

Power Switch/Driver 1:1 N-Channel 500mA PowerSSO-12 8-channel protected high-side 12 V output switch IC The VNI2140J is a monolithic device designed using STMicroelectronics' VIPower technology. The device drives two independent resistive or inductive loads with one side connected to ground. Active current limitation prevents a drop in system power supply in cases of shorted-load, and built-in thermal shutdown protects the chip from damage due to overtemperature and short-circuit. In overload conditions, channel turns OFF and ON automatically to maintain the junction temperature between TTSD and TR. If the case temperature reaches TCSD, the overloaded channel is turned OFF and restarts only when case temperature decreases down to TCR. In order to avoid high-peak current from the supply, when more than one channel is overloaded the TCSD restart is not simultaneous. Non overloaded channels continue to operate normally. The open-drain diagnostics output indicates overtemperature conditions and open-load in OFF-state. Features • Nominal current: 0.75 A per channel • Shorted-load protections • Junction overtemperature protection • Case overtemperature protection for thermal independence of the channels • Thermal case shutdown restart not simultaneous for the various channels • Protection against loss of ground • Current limitation 1 A per channel • Undervoltage shutdown • Open-load in OFF-state and short to VCC detection • Open-drain diagnostic outputs • 3.3 V CMOS/TTL compatible inputs • Fast demagnetization of inductive loads • Conforms to IEC 61131-2 Applications • Programmable logic control • Industrial PC peripheral input/output • Numerical control machines #VNI2140J #STMicroelectronics #VIPower #HighSideSwitch #SolidStateRelay #PowerManagement #IndustrialAutomation #PLC #LoadDriver #PowerSSO12

Schottky barrier diode,BAT41 0.1A 100V STMicroelectronics BAT41 Schottky Diode, 0.1A, 100V, 2-Pin DO-35

Transceiver 433MHz IPEX interface -100dBm 1km SPI SMD,20x14mm RF Transceiver Modules and Modems RoHS The E04-400M16S is based on STMicroelectronics' S2-LPQTR chip as the core, it is an ultra-small size chip wireless transceiver RF module independently developed by Ebyte, working in the 433M/470M frequency band, with a maximum transmission power of 16dBm. Since this module is a SPI pure hardware radio frequency transceiver module, it needs to be driven by MCU. Features  Ultra-small size, only 14x20mm;  The communication distance can reach 1km under ideal conditions;  The maximum transmit power is 16dBm;  The receiving current (RX) is as low as 7mA, and the transmitting current (TX) is as low as 10mA@10dBm;  Low power consumption, suitable for battery-powered applications;  Support 433M/470M frequency band;  Support multiple debugging modes of 2(G)FSK, 4(G)FSK, OOK, ASK;  Support 2.5V～3.6V power supply, power supply greater than 3.3V can guarantee the best performance;  Industrial-grade standard design, supporting long-term use at -40～85℃;  IPEX interface and stamp hole are optional, which is convenient for users to develop and integrate. Application  Smart meeting  Wireless alarm system  Smart door lock  Building automation  Industrial acquisition and control  Intelligent lighting system #E04_400M16S #EBYTE #S2LP #RFModule #WirelessTransceiver #433MHz #470MHz #IoT #IndustrialAutomation #SmartHome #LongRangeWireless #SPI #LowPowerRF #EmbeddedSystems #WirelessCommunication

ARM® Cortex®-M4 STM32F4 Microcontroller IC 32-Bit 180MHz 2MB (2M x 8) FLASH 176-LQFP (24x24) The STM32F427IIT6 specification defines the engineering requirements for a high-performance microcontroller device designed for embedded processing applications requiring advanced computational capability, rich peripheral integration, and reliable real-time control. This specification establishes the functional, electrical, mechanical, environmental, and quality requirements necessary to ensure consistent operation across industrial, consumer, and communication systems. The device is intended for use in complex embedded systems where high-speed processing, efficient memory handling, and extensive peripheral connectivity are required. It supports applications such as industrial automation, motor control, signal processing, communication interfaces, and advanced embedded control systems. Engineering Requirements The microcontroller shall be manufactured using advanced semiconductor fabrication processes to ensure high processing performance, low power consumption, and long-term reliability. The device shall provide stable operation across its intended voltage, temperature, and environmental conditions while maintaining deterministic real-time behavior. The integrated architecture shall support high-speed processing capabilities, embedded memory resources, and multiple communication interfaces for system-level integration. Peripheral functionality shall operate reliably under defined electrical and environmental conditions without degradation of performance. Electrical characteristics shall ensure stable logic levels, accurate timing behavior, and robust signal integrity across all supported operating modes. The device shall maintain functional reliability during power transitions, reset conditions, and dynamic load variations. Mechanical and package construction shall be suitable for surface-mount assembly processes and shall ensure mechanical integrity during soldering, handling, and operation. Workmanship shall be free from defects including contamination, physical damage, or structural inconsistencies that could impact reliability or performance. Inspection, validation, and testing shall be performed using controlled procedures and calibrated equipment to ensure compliance with all applicable engineering and quality standards. Any deviation from this specification shall require formal engineering review, documented justification, and approval through the established change control process. Documentation Supporting documentation shall include engineering datasheets, reference manuals, qualification reports, electrical characterization data, inspection records, and revision-controlled manufacturing documentation. All records shall be maintained under formal configuration management and quality assurance systems. Revision Control Any modification to this specification shall be processed through the established engineering change management system. All revisions shall undergo technical review, validation, and formal approval prior to implementation to ensure continued compliance with design intent and applicable industry requirements. #EngineeringSpecification #Microcontroller #EmbeddedSystems #STMicroelectronics #DigitalControl #IndustrialElectronics #Firmware #Semiconductor #QualityAssurance #EngineeringDocumentation #RealTimeSystems

ARM® Cortex®-M4F STM32G4 Microcontroller IC 32-Bit 170MHz 512KB (512K x 8) FLASH 64-LQFP (10x10) The STM32G491RET6 from STMicroelectronics is a high-performance 32-bit microcontroller based on the Arm® Cortex®-M4 core with Floating Point Unit (FPU), designed for advanced embedded applications requiring high computational performance, precise analog processing, and real-time control. It belongs to the STM32G4 series and integrates enhanced analog peripherals, motor-control timers, communication interfaces, security features, and hardware accelerators such as CORDIC and FMAC. The device operates at up to 170 MHz, provides 512 KB Flash memory, and includes 96 KB SRAM, making it suitable for applications such as motor control, digital power conversion, industrial automation, robotics, and embedded control systems. Key Features Core: Arm® Cortex®-M4 32-bit CPU with FPU, DSP instructions, and MPU Maximum CPU Frequency: Up to 170 MHz (up to 213 DMIPS) Memory: 512 KB Flash memory with ECC support 96 KB SRAM with parity checking features Quad-SPI memory interface Operating Voltage: 1.71 V to 3.6 V Package: LQFP-64 Advanced Analog Features: 3 × 12-bit ADCs with high-speed conversion 4 × 12-bit DAC channels 4 × Rail-to-Rail operational amplifiers 4 × Fast analog comparators Internal voltage reference buffer Hardware Accelerators: CORDIC accelerator for trigonometric calculations FMAC (Filter Math Accelerator) for digital filtering applications Timers & Motor Control: Advanced PWM timers for motor-control applications Multiple 16-bit and 32-bit timers Support for encoder and PWM control Communication Interfaces: 2 × FDCAN interfaces 5 × USART/UART 3 × SPI interfaces 3 × I²C interfaces USB 2.0 Full-Speed interface SAI audio interface Security Features: True Random Number Generator (TRNG) CRC calculation unit Unique device ID Debug & Programming: SWD and JTAG debugging support Typical Applications Motor control and BLDC controllers Digital power converters Industrial automation equipment Robotics and motion control Smart sensors and embedded control systems Power management applications #STM32G491RET6 #STM32G4 #STMicroelectronics #ARM_CortexM4 #Microcontroller #MCU #EmbeddedSystems #MotorControl #DigitalPower #IndustrialAutomation #Robotics #IoT #ElectronicsDesign #PCBDesign

STM32U073 Series – ultra-low-power 32-bit microcontroller based on the Arm Cortex-M0+ core operating up to 56 MHz. Features up to 256 KB Flash memory, 40 KB SRAM, USB Full-Speed interface, integrated LCD controller, advanced analog peripherals, and extremely low power consumption. Designed for battery-powered, portable, industrial, smart metering, IoT, wearable, medical, and consumer electronics applications. Includes ADC, DAC, op-amp, comparators, RTC, DMA, timers, communication interfaces, and multiple low-power operating modes. Search Keywords: STM32U073, STM32U073RBT6, STM32U073CBT6, STM32U073 MCU, STMicroelectronics MCU, Cortex-M0+ Microcontroller, Ultra Low Power MCU, ARM Microcontroller, USB Microcontroller, LCD Controller MCU, Battery Powered MCU, Embedded Controller, IoT Microcontroller, Industrial MCU, Smart Meter MCU, Wearable MCU, 256KB Flash MCU, 40KB SRAM MCU, Low Power Embedded System, STM32U0 Series Hashtags: #STM32U073 #STM32U0 #STM32 #STMicroelectronics #CortexM0Plus #ARMMCU #Microcontroller #UltraLowPower #EmbeddedSystems #USBMCU #LCDController #IoT #WearableElectronics #SmartMeter #IndustrialElectronics #BatteryPowered #FirmwareDevelopment #ElectronicsDesign #PCBDesign #EmbeddedHardwareST Microelectronics STM32G071K8U6 UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5 LCSC Part Number: C724237 JLCPCB Part Class: Extended Part Manufactured by ST(意法半导体)

STM32WLE5JC is an ultra-low-power wireless microcontroller from STMicroelectronics that combines an Arm Cortex-M4 processor with an integrated Sub-GHz radio transceiver in a single chip. Designed for long-range, low-power IoT and LPWAN applications, it supports LoRa®, (G)FSK, (G)MSK, and BPSK modulation schemes, making it ideal for smart metering, industrial monitoring, agriculture, asset tracking, and remote sensing applications. The device offers a high level of integration, robust security features, and extensive peripheral support while maintaining very low power consumption. Key Features Arm Cortex-M4 32-bit MCU running at up to 48 MHz Integrated Sub-GHz radio transceiver (150 MHz to 960 MHz) Supports LoRa®, LoRaWAN®, (G)FSK, (G)MSK, and BPSK modulations Up to 256 KB Flash memory and 64 KB SRAM Ultra-low-power operation with multiple low-power modes Programmable RF output power up to +22 dBm High receiver sensitivity down to -148 dBm (LoRa mode) Hardware AES-256 encryption and True Random Number Generator (RNG) Public Key Accelerator (PKA) for enhanced security 12-bit ADC, 12-bit DAC, comparators, and DMA controllers Multiple communication interfaces: USART, LPUART, SPI, I²C Operating voltage range: 1.8 V to 3.6 V Operating temperature range: -40°C to +105°C Available in compact UFQFPN, UFBGA, and WLCSP packages #STM32WLE5JC #STM32WL #LoRa #LoRaWAN #SubGHz #WirelessMCU #CortexM4 #LPWAN #IoT #SmartMetering #IndustrialIoT #EmbeddedSystems #STMicroelectronics

Battery Multi-Function Controller IC Lithium Ion/Polymer 32-VFQFPN (5x5) L9961 is part of a complete battery pack monitoring, balancing, and protecting system for Li-Ion and Li-Polymer cells in 3, 4 or 5 series configurations. The L9961 uses a high precision ADC to provide cell voltage, stack voltage and temperature conversion via external NTC. Voltage monitoring functions are cyclically performed with a programmable loop time. Stack current is also monitored via a high accuracy CSA, continuously running and performing also Coulomb counting. Cell balancing is available and can be simultaneously activated on all cells. IC configuration and information exchange for SOC/SOH estimation are performed via I2C peripheral. The IC also integrates a dual pre-driver programmable in both HS/LS configurations for driving pack relays. L9961 also implements battery pack fuse protection to prevent fire and explosion hazards. A 3.3 V regulator with a high current capability is available for supplying pack controller and other external circuitry in both standby and normal operation modes. The IC protects the battery pack against over/under voltage conditions and monitors for over/ under temperature. It also features protection against overcurrent (both directions) and short-circuit in discharge events. Safety-relevant configurations can be stored in the internal NVM to avoid re-programming the device at each wake-up. Features • 2 μA shipment - DEEP SLEEP mode current and 5 μA standby consumption (with VREG LDO active) standby consumption (with VREG LDO active) • Integrated 3.3 V VREG LDO for supplying MCU and LEDs • Measures cell voltage (3 to 5 cells), with over/undervoltage detection and balance undervoltage protection • 12-bit voltage measurement with maximum error of ±15 mV in the [1.5 – 4.5] V range, for -40 °C < TJ < 105 °C • Measures stack voltage, with over/under voltage detection and plausibility check vs. sum of cells • Measures pack temperature via NTC, with over/undertemperature detection • Ratiometric temperature measurement with ±0.8% max. gain error in the [0.2 – VREG] V range, for -40 °C < TJ < 105 °C • Measures battery current, with Coulomb counting, overcurrent (both directions) and short-circuit in discharge protection. • 16-bit signed current measurement with 0.1% full scale error at room temperature • I 2C peripheral for device programming and data transfers over I2C bus • Cell balancing supporting up to 70 mA per cell • Dual configurable HS/LS predriver for pack relay management • Pack fuse management • Embedded NVM for configuration parameters storage • High hotplug robustness Applications • Cordless power tools • Backup energy storage systems and UPS • Light electric vehicles (e-bikes, scooters, etc.) • Portable and semi-portable equipment • Medical equipment #L9961TR #BatteryManagement #BMS #LiIonBattery #LiPoBattery #STMicroelectronics #BatteryProtection #CellBalancing #CoulombCounting #PowerManagement #EmbeddedSystems #EnergyStorage #EBike #PowerTools #ElectronicsDesign