LAN9253/R4X Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The LAN9253/R4X is an EtherCAT slave controller IC from Microchip Technology in a 64-pin QFN package. It supports I2C and SPI host interfaces up to 25 MHz and provides a 16-bit address bus with boundary scan for industrial Ethernet automation networks. Designed for real-time fieldbus connectivity in servo drives, I/O modules, and industrial robot controllers.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- LAN9253/R4X Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.7000(MOQ 25)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LAN9253/R4X?
- EtherCAT slave controller with full ESC (EtherCAT Slave Controller) logic on-chip
- Host interface via SPI and I2C up to 25 MHz clock for easy microcontroller integration
- 16-bit address bus enabling large process data image mapping
- Boundary scan (JTAG) support for board-level production testing
- 64-pin QFN package for compact industrial PCB designs
- NRZI data encoding for reliable 100 Mbps EtherCAT physical layer communication
What is LAN9253/R4X used for?
The LAN9253/R4X is purpose-built for industrial automation devices that must connect to EtherCAT fieldbus networks, including servo motor drives, distributed I/O modules, and collaborative robot joint controllers. Its SPI host interface allows any microcontroller or DSP to become an EtherCAT slave node by offloading all real-time Ethernet protocol processing to the LAN9253 at clock rates up to 25 MHz. The QFN-64 package and integrated boundary scan make it straightforward to deploy in compact, high-reliability industrial PCB designs that require JTAG-based production test coverage.
What are the specifications of LAN9253/R4X?
| 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 | 8542.39.00.01 |
| Country of Origin | Taiwan, Thailand |
Where can I find the LAN9253/R4X datasheet?
LAN9253/R4X Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for LAN9253/R4X?
Compatible alternatives and drop-in replacements for LAN9253/R4X:
Frequently Asked Questions
How does LAN9253/R4X connect to a host microcontroller, and what clock speeds are supported?
The LAN9253/R4X connects to a host processor via SPI or I2C interfaces with a maximum clock frequency of 25 MHz, enabling a standard microcontroller or DSP to exchange EtherCAT process data and configuration registers over a 3- or 4-wire SPI bus at update rates well within the 1 ms cycle times typical of motion control systems.
What industrial network protocol does the LAN9253/R4X implement, and how does it benefit real-time machine control?
The LAN9253/R4X implements the EtherCAT protocol, which achieves deterministic cycle times as short as 100 µs over standard 100 Mbps Ethernet cables — far faster than traditional fieldbuses like CANopen or PROFIBUS — making it ideal for synchronizing multiple servo axes, I/O modules, and sensor nodes in high-speed CNC, robotics, and packaging machinery.
What does boundary scan support in LAN9253/R4X mean for production test coverage?
Boundary scan (JTAG) compliance means that during automated PCB production testing, each of the LAN9253/R4X's 64 pins can be driven and sampled through the JTAG scan chain without physical probing, allowing bed-of-nails or JTAG-based ICT fixtures to verify solder joint continuity and functional connectivity across the 16-bit address bus and SPI interface in seconds.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $8.4100 | $210.25 |
| 100+ | $7.6500 | $765.00 |
| 1000+ | $7.0700 | $7070.00 |
| 5000+ | $6.7000 | $33500.00 |
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