LAN9253-I/R4X Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip LAN9253 is a 3-port EtherCAT slave controller with dual integrated PHYs supporting 100 Mbps full-duplex Ethernet. It features a 16-bit address bus, SPI and I2C host interfaces, and boundary scan in a 64-pin QFN package, enabling real-time industrial automation network connectivity.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- LAN9253-I/R4X Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.1552(MOQ 25)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3-port EtherCAT slave controller with dual integrated 100 Mbps PHYs
- 16-bit address bus for high-throughput data exchange
- SPI and I2C host interface compatibility
- 25 MHz maximum clock frequency
- NRZI data encoding/decoding for reliable transmission
- Boundary scan (JTAG) support for board-level testing
- 64-pin QFN compact package
- Operating temperature -40°C to +85°C
Applications
The LAN9253 is designed for EtherCAT slave nodes in industrial robot controllers, CNC machine tool drives, and factory automation PLCs that require deterministic 100 Mbps real-time Ethernet communication. Its dual integrated PHYs with a daisy-chain port configuration eliminate the need for external Ethernet transformers in EtherCAT ring topologies. The 64-pin QFN package and SPI/I2C host interface simplify integration with existing microcontroller-based motion control designs.
Specifications
| Manufacturer Package Code | QFN-64 |
| Factory Lead Time | 15Weeks |
| Date Of Intro | 2020-08-18 |
| YTEOL | 19 |
| Address Bus Width | 16 |
| Boundary Scan | YES |
| Bus Compatibility | I2C; SPI |
| Clock Frequency-Max | 25MHz |
| Communication Protocol | SYNC, BYTE |
| Data Encoding/Decoding Method | NRZI |
| Data Transfer Rate-Max | 12.5MBps |
| External Data Bus Width | 16 |
| JESD-30 Code | S-XQCC-N64 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of Serial I/Os | 4 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC64,.35SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Supply Voltage-Max | 1.26V |
| Supply Voltage-Min | 1.14V |
| Supply Voltage-Nom | 1.2V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | SERIAL IO/COMMUNICATION CONTROLLER, LAN |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Taiwan, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LAN9253-I/R4X:
Frequently Asked Questions
How many EtherCAT ports does the LAN9253 support, and what line rate do they operate at?
The LAN9253 provides 3 EtherCAT ports with 2 integrated 100 Mbps full-duplex PHYs, enabling daisy-chain or branching network topologies without external Ethernet switches. This allows EtherCAT frames to pass through the slave node at wire speed with deterministic sub-microsecond latency, which is essential for synchronized multi-axis motor control systems.
Which host interface options does the LAN9253 offer for connecting to a microcontroller in an industrial drive design?
The LAN9253 supports both SPI and I2C host interfaces operating alongside a 16-bit parallel address bus, giving designers flexibility to connect it to a wide range of microcontrollers and DSPs. SPI operation is common for high-throughput real-time data exchange in servo drives, while I2C suits lower-bandwidth configuration and status register access, both available on the 64-pin QFN footprint.
For a compact industrial I/O module, how does the 64-pin QFN package of the LAN9253 compare to larger LQFP alternatives in PCB area?
The LAN9253's 64-pin QFN package measures approximately 9 mm x 9 mm with no protruding leads, significantly smaller than a 64-pin LQFP at roughly 12 mm x 12 mm including leads. The QFN's exposed thermal pad also improves heat dissipation during continuous 100 Mbps operation, and the no-lead outline enables finer pitch routing on 6-layer industrial PCBs where space for the EtherCAT slave node is limited.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $9.2600 | $231.50 |
| 29+ | $7.1022 | $205.96 |
| 37+ | $6.8654 | $254.02 |
| 49+ | $6.1552 | $301.60 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”