LAN8187I-JT Industrial-grade 10/100 Mbps Low-power Ethernet PHY Transceiver IC for Embedded Systems
Specifications
Manufacturer:
Microchip Technology
Product Number:
LAN8187I-JT
Description:
IC TRANSCEIVER 64TQFP
Highlight:
Industrial-grade Ethernet PHY Transceiver
,10/100 Mbps LAN8187I-JT
,Low-power Integrated Circuit
Introduction
LAN8187I-JT Industrial Ethernet PHY Transceiver
The LAN8187I-JT from Microchip Technology is a low-power, industrial-grade 10/100 Mbps Ethernet PHY transceiver optimized for embedded and industrial Ethernet applications.
Key Functions
Ethernet Physical Layer (PHY) Operation
- Dual-speed support: 10BASE-T (10 Mbps) over Cat-3/Cat-5 UTP; 100BASE-TX (100 Mbps) over Cat-5 UTP
- Full-duplex/half-duplex operation
- Auto-negotiation & parallel detection: Automatically negotiates speed, duplex, and flow control with link partners
- HP Auto-MDIX: Eliminates need for crossover cables; auto-detects and swaps TX/RX pairs
Signal Processing & Performance
- Integrated encoder/decoder, scrambler/descrambler, wave-shaping transmitter, and output driver
- Adaptive equalizer and baseline wander (BLW) correction for robust twisted-pair reception
- Clock/data recovery (CDR) for reliable signal synchronization
- High ESD protection: ±8 kV HBM without external components
Power & Interface Features
- Single 3.3V supply operation; integrated 3.3V-to-1.8V linear regulator (can be disabled for systems with 1.8V power)
- Low-power modes: Energy-detect power-down; low-current power-down
- Host interfaces: Configurable for MII or RMII (reduced pin count)
- 4 LED status indicators for link, activity, speed, and duplex
- Industrial temperature range: −40°C to +85°C
- Package: 64-pin TQFP (surface-mount)
Control & Diagnostics
- IEEE 802.3-compliant register set + vendor-specific registers for advanced configuration
- Built-in loopback modes for system testing and diagnostics
Typical Applications
- Industrial Automation & Control: PLCs, factory automation, process control systems, industrial Ethernet switches
- Embedded Systems: IoT gateways, industrial PCs, single-board computers (SBCs), embedded networking devices
- Telecom & Networking: Access equipment, routers, IP cameras, VoIP phones, networked sensors
- Test & Measurement: Data acquisition systems, industrial test equipment, network analyzers
- Automotive & Transportation: In-vehicle networking, telematics, railway/avionics communication modules
- Smart Grid & Energy: Power monitoring, smart meters, grid communication nodes
- Consumer & Commercial: POS terminals, security systems, digital media devices
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