This module involves the design of a keypad lock system. It utilizes an ATMEGA328P microcontroller, buzzers, LEDs for indicator functions and a 4x3 matrix keypad. An in-circuit serial programming (ISP) header is also present for programming the microcontroller. #template #lock #keypad #reusable #module #simple-embedded #microchip #arduino #atmega328 #TPS613222A #ISP #buzzer #sublayout

Temperature Sensor Digital, Local -40°C ~ 125°C 10 b 8-MSOP The MCP9808T-E/MS is a high-accuracy digital temperature sensor developed by Microchip Technology for precision thermal monitoring applications. The device communicates through a standard I²C-compatible serial interface and is optimized for low-power embedded systems requiring accurate ambient temperature measurement. It integrates internal temperature sensing, analog-to-digital conversion, programmable alert functionality, and configurable power management within a compact MSOP package. The sensor is designed for applications including industrial monitoring, consumer electronics, IoT devices, thermal management systems, medical instrumentation, and battery-powered portable equipment. Its low operating current and shutdown capability make it suitable for energy-efficient systems where thermal accuracy and minimal power consumption are critical. The device supports programmable temperature limits and interrupt generation for over-temperature events, enabling autonomous thermal supervision without continuous host processor intervention. The MCP9808T-E/MS maintains high measurement accuracy across a wide operating temperature range and offers stable digital output without requiring external calibration components. Electrical Characteristics Supply voltage operation supports low-voltage and standard logic systems. Low operating current enables efficient continuous monitoring. Shutdown mode significantly reduces power consumption during inactive periods. Digital I²C interface supports standard and fast communication modes. Integrated temperature conversion engine provides direct digital temperature output. Temperature Sensing Features High-accuracy ambient temperature measurement. Wide operating temperature range suitable for industrial environments. Programmable resolution for balancing conversion speed and precision. Configurable upper, lower, and critical temperature alert thresholds. Integrated hysteresis control for stable thermal event detection. Communication Interface I²C-compatible serial communication interface. Configurable slave addressing for multi-device bus operation. Supports read and write access to internal configuration registers. Compatible with common microcontrollers and embedded processors. Functional Features Integrated alert output for thermal event signaling. Programmable interrupt and comparator operating modes. Internal registers support temperature monitoring and device configuration. Power-on reset circuitry ensures predictable startup behavior. Device identification registers support system-level verification. Mechanical Characteristics Package type is MSOP with compact surface-mount footprint. Suitable for automated PCB assembly processes. RoHS-compliant and lead-free manufacturing. Typical Applications Industrial temperature monitoring systems. Portable battery-powered electronics. Embedded microcontroller systems. Thermal protection and supervision circuits. Consumer and IoT sensing devices. Medical and laboratory instrumentation. #CommonPartsLibrary #Sensor #Transducer #Temperature-Sensor #MCP9808

SAM D21 Microchip SMART ARM-based Flash MCU, 48Mhz, 256K Flash, 32K SRAM, QFN-48 #Microcontroller #atsamd #commonpartslibrary

This circuit is an ultrasonic distance meter based on an ATTiny2313 microcontroller. It uses an HC-SR04 ultrasonic sensor to measure distance and displays the results on an OLED display. The power supply is constructed using a Boost converter (TPS613222A) and a 2-cell AA battery. Additionally, it also includes ISP for programming, RESET and START switches, and LED indicators. #project #Template #projectTemplate #ultrasonic #OLED #arduino #attiny2313 #TPS613222A #ISP #reusable #module #simple-embedded #microchip #sublayout

MCP3913 Series 3.6 V 4.5 mA SMT Six-Channel Analog Front End - SSOP-28 The MCP3913A1T-E/SS is a high-performance, multi-channel analog front-end (AFE) from Microchip Technology intended for precision measurement applications. It features six simultaneous sampling 24-bit delta-sigma ADCs with integrated programmable gain amplifiers, enabling accurate acquisition of low-level analog signals. Designed for energy monitoring and industrial sensing, the device provides low noise, high dynamic range, and flexible configuration. It supports SPI communication for efficient interfacing with microcontrollers and digital processing systems. Key Features Six simultaneous sampling 24-bit delta-sigma ADC channels Integrated programmable gain amplifiers per channel High signal-to-noise ratio and low distortion Programmable oversampling ratios for performance tuning Internal voltage reference with external reference option SPI-compatible digital interface Configurable data output formats and control registers Low power operation modes Electrical Characteristics Resolution: 24-bit Number of Channels: 6 Input Configuration: Differential Supply Voltage: 2.7V to 3.6V Operating Temperature Range: -40°C to +125°C Programmable Gain: Up to 32 V/V (typical) Reference Voltage: Internal or external selectable Functional Description The device integrates six high-resolution delta-sigma ADCs that sample input signals simultaneously, ensuring accurate phase and timing relationships across channels. Each input passes through a programmable gain stage, allowing optimization for different sensor levels. Analog signals are digitized using oversampling and digital filtering techniques to achieve high precision and noise reduction. Configuration is handled via internal registers, and data is transferred through an SPI interface. Package Information Package Type: SSOP Pin Count: 28 Mounting Type: Surface Mount Applications Energy metering Power monitoring systems Industrial automation Multi-channel data acquisition Sensor interfacing Smart grid systems Advantages High integration reduces external components Simultaneous sampling improves measurement accuracy High resolution supports precise signal analysis Flexible configuration for various system requirements #commonpartslibrary #integratedcircuit #powermanagement #energymetering

4/4 Transceiver Full MII, RMII 32-VQFN (5x5) ## Engineering Specification ## General Description The **LAN8770M-I/PRA** is a Microchip Technology single-port **100BASE-T1 Ethernet physical layer transceiver** designed for automotive, industrial, and embedded networking applications. It provides Ethernet communication over a single balanced twisted pair and is suitable for compact systems requiring reliable network connectivity, low-power operation, and standard MAC interface support. The device is commonly used in automotive electronic control units, infotainment systems, telematics modules, sensor nodes, industrial control systems, and embedded Ethernet hardware. ## Device Identification Manufacturer Part Number: **LAN8770M-I/PRA** Manufacturer: **Microchip Technology** Product Family: **LAN8770** Device Category: **Integrated Circuit** Device Type: **Ethernet PHY Transceiver** Ethernet Standard: **100BASE-T1** Interface Type: **MII and RMII** Mounting Type: **Surface Mount** Package Type: **VQFN** ## Functional Description The device functions as an Ethernet physical layer transceiver that connects a host controller or microcontroller MAC interface to a single-pair Ethernet physical medium. It handles the analog and digital PHY functions required for 100BASE-T1 communication, allowing embedded systems to transmit and receive Ethernet data over a single twisted pair cable. ## Network and Interface Description The **LAN8770M-I/PRA** supports 100 Mb/s single-pair Ethernet communication and provides MII and RMII host interface options. This allows integration with microcontrollers, processors, gateways, and network controllers that support standard Ethernet MAC interfaces. The device is intended for applications where compact Ethernet connectivity and reduced cabling complexity are required. ## Electrical Description The device is designed for low-voltage operation and supports multiple supply domains according to the manufacturer’s recommended operating conditions. Proper power sequencing, decoupling, reset handling, clocking, and reference layout should be implemented to maintain stable PHY operation and signal integrity. ## Package and Mechanical Description The component is supplied in a compact surface-mount **VQFN package**, suitable for dense printed circuit board assemblies. The package supports automated assembly and is appropriate for space-constrained automotive and industrial electronic designs. ## Control and Diagnostic Description The PHY supports management and configuration through standard control interfaces used in Ethernet designs. It provides status monitoring and configuration capability for link management, operating mode selection, and system-level diagnostics. These features allow the host controller to configure and monitor Ethernet link behavior during operation. ## Automotive and Industrial Suitability The **LAN8770M-I/PRA** is suitable for embedded systems requiring robust single-pair Ethernet communication. It is applicable to automotive networking, telematics, infotainment, advanced driver assistance systems, industrial Ethernet nodes, building automation, control modules, and other connected embedded platforms. ## Mounting and Assembly Description The component is intended for surface-mount PCB assembly using standard reflow soldering processes. PCB layout should follow Microchip’s hardware design guidance, including proper power supply decoupling, controlled impedance routing, short signal paths, grounding, and separation of sensitive analog and digital sections where applicable. ## Design Considerations The design should account for Ethernet signal integrity, single-pair cable interface requirements, common-mode noise control, EMC performance, supply filtering, oscillator or clock source requirements, reset timing, thermal performance, and package solderability. The device should not be operated beyond the manufacturer’s specified electrical, thermal, or mechanical limits. ## Application Suitability The device is suitable for automotive Ethernet nodes, electronic control units, telematics modules, infotainment systems, sensor interfaces, industrial controllers, embedded gateways, connected equipment, and compact network-enabled hardware requiring 100BASE-T1 Ethernet PHY functionality. ## Hashtags #commonpartslibrary #integratedcircuit #ethernetphy #microchip #microchiptechnology #lan8770 #lan8770mipra #singlepairethernet #100baset1 #automotiveethernet #ethernettransceiver #phytransceiver #embeddednetworking #mii #rmii #vqfnpackage #smdcomponent #surfacemount #automotiveelectronics #industrialethernet #telematics #infotainment #embeddedhardware #pcbdesign #hardwaredesign #electronicscomponents #electronicparts #componentlibrary #engineeringparts #electronicsengineering

Ethernet Controller 10/100 Base-T/TX Bus Interface 80-TQFP-EP (12x12) The LAN9254-I/JRX is an EtherCAT SubDevice (slave) controller developed by Microchip Technology, designed to serve as the communication backbone for industrial automation devices participating in an EtherCAT network. The device integrates dual Ethernet physical layer transceivers directly on-chip, eliminating the need for external PHY components and simplifying the design of EtherCAT-enabled equipment such as servo drives, sensors, I/O modules, and other field devices used in real-time industrial control systems. Architecturally, the controller can operate as either a two-port or three-port node, depending on the network topology required. In its standard configuration it functions as a two-port device supporting daisy-chain connections typical of EtherCAT line topologies. When configured as a three-port device, it gains an additional management interface port that can connect to an external PHY or to another LAN9254, enabling star or tree network topologies and allowing the device to act as a branching point within a larger EtherCAT installation. Each integrated Ethernet PHY operates in full-duplex mode and supports automatic crossover detection, so the device can use either straight-through or crossover cabling without requiring manual configuration. Beyond pure protocol handling, the LAN9254 includes a substantial set of general-purpose digital input and output lines, allowing it to be used in simple field devices without requiring a separate microcontroller. For more complex applications, the device communicates with an external host processor through an integrated host bus interface that behaves like simple memory-mapped SRAM, supporting both 8-bit and 16-bit data widths along with multiple byte-ordering conventions, which makes it straightforward to interface with a wide range of microcontroller and microprocessor architectures. Internally, dual process data RAM buffers manage the exchange of real-time process data between the host application and the EtherCAT communication engine, while a dedicated interrupt line notifies the host of relevant internal events. A key feature of the device is its built-in distributed clock mechanism, which provides high-precision timing synchronization across all nodes in an EtherCAT network. This capability is essential for motion control and other applications where multiple devices must act in tight temporal coordination. The controller also provides configurable status indication through standard network activity and link LEDs, along with optional error and run-state indicators that give visibility into the health and operational state of the device at a glance. Power architecture on the LAN9254 is simplified through an integrated linear regulator, allowing the device to be operated from a single primary supply rail while internally generating the lower voltage needed for its core logic. This reduces the external power supply complexity that would otherwise be required to support separate core and I/O voltage domains. The "-I" designation on this particular part number indicates an industrial-grade temperature rating, making it suitable for deployment in factory floor and other demanding industrial environments where extended thermal range and long-term reliability are required. The device is housed in a surface-mount package consistent with dense industrial control board layouts and is compliant with RoHS material restrictions. Spec Sheet Identification Part Number: LAN9254-I/JRX Device Family: LAN9254 Manufacturer: Microchip Technology Functional Classification Device Type: EtherCAT SubDevice (slave) controller Network Role: Two/three-port configurable node Integrated PHYs: Dual Ethernet physical layer transceivers, on-chip Auto-MDIX Support: Yes, supports direct and crossover cabling Communication & Protocol Features Protocol: EtherCAT Topology Support: Daisy-chain (line), star, and tree topologies Additional Port Mode: Optional third port for branching/tap configurations Clock Synchronization: Integrated distributed clock for high-precision timing Host Interface Interface Type: SRAM-like host bus interface Data Width Support: Selectable bit-width host bus operation Endianness Support: Multiple byte-ordering modes Process Data Handling: Dual process data RAM buffers Interrupt Support: Configurable host interrupt line Digital I/O General-Purpose I/O: Integrated digital I/O lines for microcontroller-less operation Standalone Mode: Supports operation without external microcontroller for simple device designs Power Architecture Supply Configuration: Single primary supply rail Internal Regulation: Integrated linear regulator for core voltage generation Status Indication LED Support: Standard run and link/activity indicators per port Optional Indicators: Configurable error and run-state status indicators Environmental & Qualification Temperature Grade: Industrial ("-I" suffix) RoHS Compliance: Yes Package Package Type: Surface-mount, quad flat package style Mounting: Surface mount technology (SMT) Packaging Format Supply Format: Tape-and-reel, per part suffix designation #LAN9254 #Microchip #EtherCAT #SlaveController #SubDeviceController #IndustrialEthernet #IndustrialAutomation #MotionControl #EmbeddedSystems #FieldDevice #DigitalIO #HostBusInterface #DistributedClock #TQFP #RoHSCompliant #IndustrialGrade #EngineeringSpec #ComponentLibrary #CommonPartsLibrary #SemiconductorIC

Supervisor Open Drain or Open Collector 1 Channel SOT-23-3 The MCP120T-450I/TT is a microcontroller supervisory (voltage reset) IC from Microchip Technology designed to monitor the system supply voltage and ensure reliable startup and operation of microcontroller-based systems. It keeps the microcontroller in the reset state until the supply voltage reaches a safe operating level and automatically asserts a reset signal if the supply voltage falls below the preset threshold, protecting the system from brown-out and power-failure conditions. The device features an open-drain active-low RESET output, a 4.375 V threshold, and is housed in a compact SOT-23-3 package, making it suitable for space-constrained embedded applications. Key Features Monitors a single supply voltage with a 4.375 V reset threshold Open-drain, active-low RESET output Holds the microcontroller in reset during power-up until VDD is stable Automatically resets the system during brown-out or power-loss events 150 ms minimum reset timeout after VDD exceeds the threshold Supports 3 V, 3.3 V, and 5 V system supervision Low operating current (typically 45 µA) Wide operating temperature range: −40°C to +85°C Compact SOT-23-3 surface-mount package Hashtags #Microchip #MCP120 #VoltageSupervisor #ResetIC #BrownOutProtection #PowerOnReset #PMIC #EmbeddedSystems #Microcontroller #SOT23 #PowerManagement #CircuitProtection

Bluetooth Bluetooth v5.0 Transceiver Module 2.4GHz Antenna Not Included Surface Mount #Bluetooth #Microchip #part #IoT

Low-Side Gate Driver IC Inverting TO-220-5 The TC4421AVAT is a high-speed MOSFET driver designed to efficiently drive power MOSFETs and IGBTs in switching applications. It features a low-impedance push-pull output stage capable of sourcing and sinking significant current, enabling rapid charging and discharging of gate capacitances for fast switching. The device supports both high- and low-side configurations, providing flexibility for power supply, motor control, DC-DC conversion, and class-D amplifier designs. Its robust design ensures reliable operation under high switching frequencies, minimizing losses and improving overall system efficiency. Engineering Specifications Manufacturer: Microchip Technology Part Number: TC4421AVAT Device Type: High-Speed MOSFET Driver Output Stage: Push-Pull Drive Capability: High Source and Sink Current Input Logic Compatibility: CMOS/TTL Compatible Supply Voltage Range: Wide Operating Range Propagation Delay: Low Rise/Fall Time: Fast Switching Output Voltage Swing: Rail-to-Rail Operating Frequency: High-Frequency Switching Applications Package Type: SOIC (Small Outline Integrated Circuit) Mounting Style: Surface Mount Thermal Performance: Designed for Efficient Heat Dissipation Protection Features: Undervoltage Lockout, Robust Against Overload Operating Temperature Range: Industrial Grade RoHS Compliant: Yes Applications: Power MOSFET/IGBT Switching, DC-DC Converters, Motor Control, Power Supplies, Class-D Audio Amplifiers, Pulse-Width Modulation Circuits, High-Speed Switching Circuits Key Features High current output for rapid gate charging and discharging CMOS/TTL input logic compatible Fast propagation delay and rise/fall times Rail-to-rail output voltage swing Suitable for high-speed, high-efficiency switching designs Reliable operation in industrial and commercial environments Compact surface-mount package for easy PCB integration Supports both high-side and low-side MOSFET driving Robust against short-term overloads and undervoltage conditions #TC4421AVAT #MicrochipTechnology #MOSFETDriver #IGBTDriver #HighSpeedDriver #PWMDriver #SwitchingPower #DC_DCConverter #MotorControl #PowerElectronics #IndustrialElectronics #SurfaceMount #ElectronicComponents #HighCurrentDriver #FastSwitching #EmbeddedSystems #PCBDesign

SAM E70 Microchip SMART ARM Cortex-M7-based MCU, 2048K Flash, 384K SRAM, LQFP-144 #Microcontroller #atsame #commonpartslibrary

Microchip CPLD, 32 Macrocell, 5 V, TQFP-44 #CommonPartsLibrary #IntegratedCircuit #Embedded #CPLDs

AVR series Microcontroller IC 8-Bit 16MHz 64KB (64K x 8) FLASH 64-TQFP (14x14) #MCU #Microchip #AVR #commonpartslibrary

SAM E70 Microchip SMART ARM Cortex-M7-based MCU, 512K Flash, 256K SRAM, LQFP-144 #Microcontroller #atsame #commonpartslibrary

SAM E70 Microchip SMART ARM Cortex-M7-based MCU, 512K Flash, 256K SRAM, LQFP-100 #Microcontroller#atsame #commonpartslibrary

AVR series Microcontroller IC 8-Bit 16MHz 128KB (128K x 8) FLASH 64-TQFP (14x14) #MCU #Microchip #AVR #commonpartslibrary

SAM E70 Microchip SMART ARM Cortex-M7-based MCU, 2048K Flash, 384K SRAM, LQFP-64 #Microcontroller #atsame #commonpartslibrary

SAM L21 Microchip SMART ARM-based Flash MCU, 48Mhz, 256K Flash, 32K SRAM, TQFP-64 #Microcontroller #atsaml #commonpartslibrary

SAM L21 Microchip SMART ARM-based Flash MCU, 48Mhz, 32K Flash, 4K SRAM, TQFP-32 #Microcontroller #atsaml #commonpartslibrary

AVR series Microcontroller IC 8-Bit 16MHz 128KB (128K x 8) FLASH 64-QFN (9x9) #MCU #Microchip #AVR #commonpartslibrary

AVR series Microcontroller IC 8-Bit 16MHz 128KB (128K x 8) FLASH 64-QFN (9x9) #MCU #Microchip #AVR #commonpartslibrary

AVR series Microcontroller IC 8-Bit 16MHz 128KB (128K x 8) FLASH 64-QFN (9x9) #MCU #Microchip #AVR #commonpartslibrary

AVR series Microcontroller IC 8-Bit 16MHz 64KB (64K x 8) FLASH 64-TQFP (14x14) #MCU #Microchip #AVR #commonpartslibrary

AVR series Microcontroller IC 8-Bit 16MHz 128KB (128K x 8) FLASH 64-TQFP (14x14) #MCU #Microchip #AVR #commonpartslibrary