32.768 kHz ±20ppm Crystal 9pF 40 kOhms 2-SMD, No Lead #CommonPartsLibrary #Crystal #Oscillator #Resonator #ECX-34RR

Crystal 27.12MHz +/-20ppm (Tol) +/-30ppm (Stability) 18pF FUND 50Ohm 4-Pin Ultra Mini-CSMD T/R #CommonPartsLibrary #Crystal #Oscillator #Resonator #ABM8

12.288 MHz XO (Standard) CMOS Oscillator 1.6V ~ 3.63V Standby (Power Down) 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

50 MHz XO (Standard) HCMOS Oscillator 1.6V ~ 3.6V Enable/Disable 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

555 Type, Timer/Oscillator (Single) IC 5MHz SOT-23-5 #commonpartslibrary #integratedcircuit #clocktimer #oscillator

8 MHz ±30ppm Crystal 20pF 60 Ohms HC-49/US #CommonPartsLibrary #Crystal #Oscillator #Resonator #ATS-SM

32 MHz ±10ppm Crystal 8pF 50 Ohms 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

32.768 kHz ±20ppm Crystal 12.5pF 70 kOhms 2-SMD, No Lead #CommonPartsLibrary #Crystal #Oscillator #Resonator #ECX-31B

26MHz ±10ppm Crystal 8pF 50Ohms 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

24.576 MHz XO (Standard) HCMOS Oscillator 3.3V Enable/Disable 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

8 MHz XO (Standard) CMOS Oscillator 3.3V Enable/Disable 4-SMD, No Lead #CommonPartsLibrary #Crystal #Oscillator #Resonator #ASE

NTC Thermistor 10k 3380K 0201 (0603 Metric) #commonpartslibrary #crystal #oscillator

32.768 kHz XO (Standard) CMOS Oscillator 1.62V ~ 3.63V Standby (Power Down) 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

16 MHz ±20ppm Crystal 18pF 50 Ohms 4-SMD, No Lead #commonpartslibrary #crystal #oscillator #resonator

24 MHz XO (Standard) HCMOS Oscillator 3.3V Enable/Disable 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

32 MHz ±10ppm Crystal 8pF 60 Ohms 4-SMD, No Lead #CommonPartsLibrary #Crystal #Oscillator #Resonator #FA-128

5 MHz ±30ppm Crystal 18pF 120 Ohms HC-49/US #CommonPartsLibrary #Crystal #Oscillator #Resonator #HC-49USX

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

6 MHz ±30ppm Crystal 18pF 60 Ohms 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

32.768 kHz ±20ppm Crystal 12.5pF 90 kOhms 2-SMD, No Lead #commonpartslibrary #crystal #oscillator

3 Channel AFE 24 Bit 28-WQFN (5x5) ADS1293CISQ/NOPB is a highly integrated, low-power 3-channel ECG Analog Front-End (AFE) from Texas Instruments. It is designed for portable and battery-powered medical devices, fitness monitors, heart-rate monitoring systems, Holter monitors, and other electrocardiogram (ECG) applications. The device integrates signal acquisition, filtering, lead-off detection, right-leg drive generation, and high-resolution analog-to-digital conversion into a single IC, reducing external component count and system cost. Key Features Three high-resolution ECG acquisition channels 24-bit analog-to-digital conversion Simultaneous pace detection support Ultra-low power consumption of approximately 0.3 mW per channel Low input-referred noise of 7 µVpp (40 Hz bandwidth) Programmable sample rates up to 25.6 ksps Differential input voltage range of ±400 mV Integrated EMI-hardened input filters Flexible input routing matrix Built-in Right-Leg Drive (RLD) amplifier AC and DC lead-off detection Integrated Wilson and Goldberger terminal generation Battery voltage monitoring capability Internal oscillator and voltage reference ALARMB pin for interrupt-driven diagnostics and fault reporting Multiple power-down and standby modes for battery-powered systems SPI-compatible digital interface Operating temperature range: –20°C to +85°C 28-pin WQFN package (5 mm × 5 mm) Typical Applications Portable 1-, 3-, 5-, 6-, 7-, 8-, and 12-lead ECG systems Holter monitors Event recorders Telemedicine devices Patient vital-sign monitoring equipment Automated External Defibrillators (AEDs) Sports and fitness heart-rate monitors Wearable medical devices Hashtags #commonpartslibrary #integratedcircuit #TexasInstruments #ADS1293 #AFE #AnalogFrontEnd #ECG #Electrocardiogram #MedicalElectronics #HealthTech #WearableDevices #HeartRateMonitor #PatientMonitoring #BiomedicalEngineering #24BitADC #LowPowerDesign #SPI #SignalConditioning #PortableMedicalDevices #HolterMonitor #Telemedicine #VitalSignsMonitoring #EmbeddedSystems #MixedSignalIC #WQFN28 #BatteryPoweredDevices #MedicalInstrumentation

19.2 MHz XO (Standard) CMOS Oscillator 1.6V ~ 3.63V Standby (Power Down) 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

26 MHz XO (Standard) CMOS Oscillator 1.6V ~ 3.63V Standby (Power Down) 4-SMD, No Lead #commonpartslibrary #crystal #oscillator

16 MHz ±25ppm Crystal 12pF 80 Ohms 4-SMD, No Lead #commonpartslibrary #crystal #oscillator