Microcontrollers

ST Microelectronics STM32L432KCU6 UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5 LCSC Part Number: C1337280 JLCPCB Part Class: Extended Part Manufactured by ST(意法半导体) STMicroelectronics STM32L432KC ultra-low-power 32-bit ARM Cortex-M4 microcontroller with FPU running up to 80MHz, featuring 256KB Flash memory, 64KB SRAM, USB 2.0 Full-Speed device support, Quad-SPI interface, RTC with calendar and alarms, true random number generator (TRNG), DMA controller, CAN 2.0B, UART, LPUART, SPI, I2C, SAI audio interface, 12-bit 5MSPS ADC, dual 12-bit DACs, operational amplifier with PGA, comparators, capacitive sensing channels, advanced timers and ultra-low-power modes. Operates from 1.71V to 3.6V and is optimized for battery-powered, industrial, medical, IoT and portable embedded applications. Search Keywords: STM32L432KC, STM32L432KCU6, STM32L432KCU6TR, STM32L432, STM32L4 series, STM32 Cortex-M4 MCU, STM32 low power microcontroller, STM32 256KB Flash 64KB SRAM, STM32 USB FS MCU, STM32 CAN MCU, STM32 Quad SPI MCU, STM32L432 datasheet, STM32L432 development board, Nucleo-L432KC, ARM Cortex-M4 FPU Hashtags: #STM32L432KC #STM32L432KCU6 #STM32L432 #STM32L4 #STMicroelectronics #CortexM4 #ARMMicrocontroller #LowPowerMCU #EmbeddedSystems #USBFS #CANBus #QuadSPI #ADC12bit #DAC12bit #RTC #TRNG #IoTMCU #IndustrialMCU #MedicalElectronics #NucleoL432KC

Buck Switching Regulator IC Positive Adjustable 1V 1 Output 3A 8-PowerSOIC (0.154", 3.90mm Width) LMR33630BDDAR – Synchronous step-down (buck) DC-DC converter delivering 1 A output with ultra-low quiescent current. Features adjustable output voltage with integrated MOSFETs, optimized for high-efficiency power conversion from a higher supply voltage to 3.3 V. Ideal for battery-powered and portable electronics, IoT devices, and microcontroller power supplies where low standby current extends battery life. Provides reliable voltage regulation with fast transient response in compact surface-mount packaging. #SynchronousBuck #DCDCConverter #LowIQ #3V3Output #1ARegulator #PowerManagement #EmbeddedElectronics #BatteryEfficient

27.12 MHz ±10ppm Crystal 10pF 50 Ohms 4-SMD, No Lead # 7M-27.120MEEQ-T Crystal Unit Engineering Specification ## General Description The 7M-27.120MEEQ-T is a surface-mount quartz crystal resonator designed to provide a stable and accurate frequency reference for digital, wireless, communication, NFC, RFID, microcontroller, and embedded system applications. Manufactured by TXC Corporation, this crystal offers reliable frequency stability, low equivalent series resistance, and compact packaging suitable for space-constrained designs. Its surface-mount construction enables automated assembly while maintaining excellent electrical performance across a wide range of operating conditions. ## Features * Fundamental mode quartz crystal resonator * Surface-mount device package for automated PCB assembly * High frequency accuracy and stability * Low equivalent series resistance * Low power consumption * Suitable for clock generation and timing circuits * RoHS compliant construction * Reliable performance for industrial and consumer electronics applications ## Electrical Characteristics * Nominal Frequency: 27.120 MHz * Crystal Type: Fundamental Mode * Load Capacitance: 10 pF * Frequency Tolerance: ±20 ppm * Frequency Stability: ±20 ppm * Equivalent Series Resistance: 60 Ω Maximum * Drive Level: Low-power operation * Operating Temperature Range: Industrial grade * Storage Temperature Range: Extended environmental capability ## Mechanical Characteristics * Package Type: Surface-Mount Crystal * Mounting Style: SMD/SMT * Compact footprint optimized for high-density PCB layouts * Four-pad no-lead package construction ## Applications * PN532 NFC Controllers * RFID Readers and Writers * Microcontroller Clock Sources * Wireless Communication Modules * Embedded Systems * Industrial Control Electronics * Consumer Electronic Devices * IoT and Smart Device Platforms ## Compliance * RoHS Compliant * Lead-Free Construction * Suitable for Automated Assembly Processes #7M27_120MEEQT #TXC #CrystalResonator #SMDCrystal #QuartzCrystal #27_120MHz #PN532 #NFC #RFID #EmbeddedSystems #TimingReference #ElectronicsDesign

Thermal Image Sensor 32H x 24V TO-39 # MLX90640ESF-BAB-000-TU Engineering Specifications **General Description** The MLX90640ESF-BAB-000-TU is a contactless infrared thermal imaging sensor manufactured by Melexis. It incorporates a microbolometer array that detects infrared radiation emitted by objects and converts the captured thermal energy into temperature data, enabling the creation of thermal images without physical contact. The device is designed for compact and cost-effective thermal imaging applications, offering high thermal sensitivity and accurate temperature measurement capabilities. It integrates a digital signal-processing engine, calibration data memory, and a digital communication interface, allowing direct connection to microcontrollers, embedded systems, and industrial monitoring equipment. The sensor provides real-time thermal mapping across its field of view and is suitable for applications involving human presence detection, predictive maintenance, industrial automation, smart building systems, medical screening, consumer electronics, robotics, and thermal monitoring solutions. Its factory calibration ensures stable performance throughout its operating life while minimizing external calibration requirements. **Engineering Specifications** **Manufacturer:** Melexis **Manufacturer Part Number:** MLX90640ESF-BAB-000-TU **Component Type:** Infrared thermal imaging sensor **Sensor Technology:** Microbolometer thermal sensor array **Measurement Method:** Non-contact infrared temperature sensing **Output Type:** Digital thermal image data **Communication Interface:** I²C-compatible serial interface **Temperature Measurement Capability:** Object temperature monitoring and thermal imaging **Thermal Imaging Function:** Real-time thermal map generation **Integrated Processing:** On-chip signal processing and calibration management **Calibration:** Factory calibrated with stored calibration parameters **Power Supply Configuration:** Single-supply operation **Power Consumption:** Optimized for low-power embedded applications **Refresh Rate:** Programmable thermal frame refresh operation **Thermal Sensitivity:** High-sensitivity infrared detection **Field of View Variant:** Wide-angle thermal imaging configuration **Accuracy Characteristics:** High-precision temperature measurement with integrated compensation algorithms **Memory Features:** Internal EEPROM for calibration coefficients **Operating Mode:** Continuous and programmable thermal acquisition **Data Output Format:** Digital temperature and thermal pixel information **Environmental Stability:** Designed for reliable operation across varying ambient conditions **Electromagnetic Compatibility:** Suitable for embedded and industrial electronic systems **Package Type:** Surface-mount package with infrared-transparent window **Mounting Style:** Surface mount technology **Package Construction:** Reflow-solderable assembly **Lead Finish:** Lead-free finish **Environmental Compliance:** RoHS compliant and halogen-free **Reliability Features:** Factory-tested and production-calibrated thermal imaging device **Typical Applications** Thermal cameras Human presence detection systems Occupancy monitoring Industrial predictive maintenance Electrical equipment inspection Smart building automation HVAC monitoring systems Medical screening devices Consumer electronics Robotics and autonomous systems Fire detection and prevention systems Industrial process monitoring Energy management systems Automotive thermal sensing applications Security and surveillance equipment #MLX90640 #MLX90640ESF #Melexis #ThermalSensor #InfraredSensor #ThermalImaging #Microbolometer #TemperatureSensor #IndustrialAutomation #EmbeddedSystems #IoT #PredictiveMaintenance #SmartBuilding #ThermalCamera #ElectronicComponents #EngineeringSpecifications

# ADC0804LCN/NOPB Engineering Specifications **General Description** The ADC0804LCN/NOPB is a CMOS successive-approximation analog-to-digital converter manufactured by Texas Instruments. It converts a differential analog input signal into an eight-bit digital output and is designed for direct connection to microprocessors through a parallel data interface. The device uses a differential potentiometric-ladder architecture to improve common-mode rejection and allow the analog zero-input level to be offset. Its adjustable reference input permits smaller analog voltage spans to use the converter’s full resolution. Tri-state output latches allow direct connection to a processor data bus without additional interface logic. The converter can operate as a microprocessor-controlled device or as a standalone, free-running converter. An integrated clock generator allows operation using an external resistor-capacitor network, although an external clock signal may also be used. **Engineering Specifications** **Manufacturer:** Texas Instruments **Manufacturer Part Number:** ADC0804LCN/NOPB **Component Type:** Analog-to-Digital Converter **Converter Architecture:** Successive Approximation Register **Resolution:** Eight bits **Number of Channels:** One **Input Configuration:** Differential analog input **Analog Input Range:** Zero volts to five volts with a five-volt supply **Supply Voltage Range:** Four and one-half volts to six and three-tenths volts **Typical Supply Voltage:** Five volts **Reference Type:** External, supply-based or ratiometric reference **Reference Input:** Adjustable VREF divided-by-two input **Digital Interface:** Eight-bit parallel interface **Microprocessor Compatibility:** Directly compatible with common eight-bit microprocessors **Conversion Time:** Approximately one hundred microseconds **Maximum Sampling Rate:** Approximately ten kilosamples per second **Total Unadjusted Error:** Plus or minus one least significant bit **Digital Outputs:** Latched tri-state outputs **Logic Compatibility:** TTL and MOS-compatible inputs and outputs **Clock Configuration:** Integrated clock generator with external resistor-capacitor timing or external clock input **Operating Modes:** Processor-controlled, standalone or continuous free-running operation **Operating Temperature Range:** Zero degrees Celsius to seventy degrees Celsius **Package Type:** Twenty-pin plastic dual in-line package **Mounting Style:** Through-hole mounting **Package Width:** Standard three-tenths-inch DIP format **Environmental Classification:** Lead-free and RoHS-compliant NOPB version **Lifecycle Status:** Obsolete and generally not recommended for new production designs **Typical Applications** Suitable for sensor signal conversion, temperature-monitoring systems, voltage measurement, transducer interfaces, embedded control systems, laboratory equipment, educational electronics projects and general-purpose data-acquisition circuits. #ADC0804LCN #ADC0804 #TexasInstruments #AnalogToDigitalConverter #ADC #DataAcquisition #EmbeddedSystems #ElectronicsEngineering #IntegratedCircuit #MicrocontrollerProjects #ElectronicComponents 8 Bit Analog to Digital Converter 1 Input 1 SAR 20-PDIP https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/721/ADC080x.pdf

Monitors & Reset Circuits TPS3808G33DRVT WSON-6_L2.0-W2.0-P0.65-TL-EP LCSC Part Number: C702176 JLCPCB Part Class: undefined Manufactured by TI(德州仪器) Texas Instruments TPS3808 low-quiescent-current voltage supervisor and reset generator, supply voltage monitoring from 0.4V to 5V, 0.5% threshold accuracy, adjustable reset delay from 1.25ms to 10s using external capacitor, open-drain RESET output, manual reset (MR) input, ultra-low 2.4µA typical quiescent current, suitable for microcontrollers, DSPs, FPGAs, ASICs, battery-powered and portable devices, operating temperature range -40°C to +125°C, available in SOT-23-6 and WSON-6 packages. Search Keywords: TPS3808, TPS3808G, Texas Instruments TPS3808, TI TPS3808, voltage supervisor, reset supervisor, reset generator, watchdog reset, power-on reset, POR supervisor, brownout detector, voltage monitor IC, microcontroller supervisor, open drain reset, adjustable reset delay, manual reset supervisor, low power supervisor, battery powered reset IC, TPS3808 datasheet, TPS3808 SOT-23-6, TPS3808 WSON-6 Hashtags: #TPS3808 #TexasInstrumentsTPS3808 #TIVoltageSupervisor #VoltageSupervisor #ResetSupervisor #ResetGenerator #PowerOnReset #BrownoutDetector #VoltageMonitorIC #MicrocontrollerSupervisor #OpenDrainReset #ManualReset #LowPowerSupervisor #BatteryPoweredDesign #SOT236 #WSON6

ESP32-C3FN4 QFN-32_L5.0-W5.0-P0.50-BL-EP3.7 LCSC Part Number: C2848860 JLCPCB Part Class: Extended Part Manufactured by ESPRESSIF(乐鑫) Espressif ESP32-C3FN4 2.4GHz Wi-Fi 802.11b/g/n and Bluetooth 5.0 LE wireless SoC, RISC-V single-core microcontroller, integrated 4MB flash memory, 2.402GHz to 2.48GHz RF transceiver, antenna not included, surface-mount package, suitable for IoT devices, wireless sensors, smart home, BLE and Wi-Fi embedded applications. Search Keywords: ESP32-C3FN4, Espressif ESP32-C3FN4, ESP32 C3FN4, ESP32-C3 4MB flash, ESP32-C3 WiFi Bluetooth SoC, ESP32-C3FN4 RF transceiver, ESP32-C3FN4 Bluetooth 5.0, ESP32-C3FN4 WiFi 802.11bgn, ESP32-C3FN4 SMD, ESP32-C3FN4 DigiKey, ESP32-C3FN4 datasheet, 1904-ESP32-C3FN4TR-ND, 1904-ESP32-C3FN4CT-ND, ESP32-C3 RISC-V SoC Hashtags: #ESP32C3FN4 #ESP32C3 #EspressifESP32C3 #EspressifSystems #WiFiBluetoothSoC #WiFiSoC #BluetoothLESoC #BLE5 #80211bgn #RISCVMicrocontroller #4MBFlash #RFTransceiver #24GHzWiFi #IoTSoC #WirelessMCU

ATTINY1616-MFR QFN-20_L3.0-W3.0-P0.40-TL-EP1.7 LCSC Part Number: C1338523 JLCPCB Part Class: Extended Part Manufactured by MICROCHIP(美国微芯) Microchip ATtiny1614/1616/1617 tinyAVR 1-series 8-bit microcontroller, AVR CPU running up to 20MHz, up to 16KB self-programmable Flash memory, 256B EEPROM and 2KB SRAM, 1.8V to 5.5V operating voltage range, single-pin UPDI programming and debug interface, power-on reset and brown-out detector, internal 16/20MHz oscillator, timers, watchdog, USART, SPI, I2C/TWI, 10-bit ADC, DAC, analog comparators, event system, configurable custom logic and peripheral touch controller, available in 14-pin, 20-pin and 24-pin packages depending on variant. Search Keywords: ATtiny1614, ATtiny1616, ATtiny1617, Microchip ATtiny1614, Microchip ATtiny1616, Microchip ATtiny1617, tinyAVR 1-series, AVR 8-bit microcontroller, ATtiny 16KB Flash, ATtiny UPDI, ATtiny1616 microcontroller, ATtiny1617 MCU, ATtiny1614 MCU, 20MHz AVR microcontroller, ATtiny I2C SPI USART, ATtiny1616 datasheet, ATtiny1614 datasheet, ATtiny1617 datasheet Hashtags: #ATtiny1614 #ATtiny1616 #ATtiny1617 #MicrochipATtiny #MicrochipMCU #tinyAVR #tinyAVR1Series #AVRMicrocontroller #8bitMicrocontroller #ATtinyMCU #UPDI #16KBFlashMCU #20MHzMCU #I2CMCU #SPIMCU #USARTMCU #ADCmicrocontroller #TouchControllerMCU

133MHz LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHS RP2040 The RP2040 is a high-performance, low-cost 32-bit microcontroller developed by Raspberry Pi Ltd.. It features dual ARM Cortex-M0+ processor cores, flexible digital interfaces, and a unique Programmable I/O (PIO) subsystem that enables custom hardware protocols and timing-critical applications. The device is widely used in embedded systems, IoT devices, robotics, industrial control, consumer electronics, and educational projects. Key Features Dual ARM Cortex-M0+ CPU cores operating up to 133 MHz (up to 200 MHz under specific conditions) 264 KB on-chip SRAM organized in six independent memory banks External QSPI Flash interface with Execute-In-Place (XIP) support and up to 16 MB Flash memory capability 30 multifunction GPIO pins with extensive peripheral multiplexing 2 × UART interfaces 2 × SPI controllers 2 × I²C controllers 16 PWM channels for motor control and signal generation USB 1.1 Host and Device support with integrated PHY 12-bit ADC with four external analog inputs and internal temperature sensor, up to 500 ksps sampling rate 12-channel DMA controller for efficient data transfers Programmable I/O (PIO) subsystem with 8 state machines for implementing custom communication interfaces and precise timing applications Integrated PLLs and programmable LDO regulator for clock and power management Operating voltage range: 1.8 V to 3.3 V Available in a compact 7 mm × 7 mm QFN-56 package Typical Applications IoT and connected devices Industrial automation Robotics and motor control Human-machine interfaces (HMI) Consumer electronics USB peripherals Sensor data acquisition systems Educational and maker projects Custom communication protocol implementations using PIO #CommonPartsLibrary #IntegratedCircuit #Microcontroller

The CD74HC4067M is a high-speed CMOS analog multiplexer and demultiplexer designed to route one of multiple analog or digital signals to a common input/output line. Built using advanced high-speed CMOS technology, this device provides low ON-state resistance, wide signal bandwidth, and low power consumption, making it suitable for signal routing, data acquisition systems, sensor expansion, communication interfaces, industrial control systems, and embedded electronics. The integrated channel selection logic enables efficient switching between multiple signal paths while maintaining signal integrity and minimizing distortion. Features High-speed CMOS analog multiplexer and demultiplexer architecture Multiple single-ended channels connected to a common input/output Low ON-state resistance for reduced signal loss Wide analog signal handling capability Bidirectional signal switching support Compatible with both analog and digital signals Low power consumption during operation Break-before-make switching characteristic High noise immunity Wide operating supply voltage range Direct interface compatibility with microcontrollers and digital logic devices Low crosstalk and low leakage current performance Surface-mount package optimized for automated assembly Applications Sensor multiplexing systems Data acquisition equipment Industrial automation controllers Embedded electronics Test and measurement instruments Communication systems Audio signal routing Battery monitoring systems Medical instrumentation Consumer electronic products Microcontroller input expansion Analog signal selection networks Electrical Characteristics CMOS logic implementation Analog and digital signal switching capability Low propagation delay Low channel capacitance Low leakage current High switching speed Wide bandwidth operation ESD protection features High input impedance Low standby power consumption Mechanical Characteristics Surface-mount integrated circuit package Compact footprint for high-density PCB layouts RoHS-compliant construction Suitable for automated pick-and-place assembly Standard industry package dimensions Design Considerations Use proper decoupling capacitors near supply pins Keep analog signal traces short to minimize noise pickup Ensure signals remain within specified supply voltage limits Consider ON-resistance effects in precision analog applications Implement appropriate PCB grounding techniques for optimal performance Avoid exceeding maximum switching current ratings #commonpartslibrary #integratedcircuit #analog #digital #multiplexer #demultiplexer #signalrouting #analogswitch #dataacquisition #embeddedsystems #industrialelectronics #texasinstruments