AX58100LT - 2/3-Port EtherCAT Slave Controller | ASIX
料号： AX58100LT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.2 | $112.00 |
| 100 | $9.8 | $980.00 |
| 500 | $8.4 | $4,200.00 |
| 1,000 | $7.3 | $7,300.00 |
AX58100LT 概述
An EtherCAT Slave Controller is a specialized industrial Ethernet IC that handles the EtherCAT protocol (a deterministic real-time Ethernet standard originally developed by Beckhoff and standardized by the EtherCAT Technology Group) without burdening the host CPU. The EtherCAT protocol itself falls under the broader hierarchy of industrial fieldbuses -> real-time Ethernet -> industrial communication IC -> semiconductor. The "slave" role means the device sits on the bus as a node that processes the EtherCAT datagram on the fly as it traverses each port, in contrast to an EtherCAT master which orchestrates the network.
The AX58100LT integrates two 100BASE-TX Fast Ethernet PHYs directly on-die, eliminating the need for external PHY chips and reducing BOM cost, PCB area, and signal-integrity complexity for servo drives, distributed I/O, and sensor modules. With 100 Mbit/s full-duplex ports, it supports standard EtherCAT cycle times down to the 12.5 us micro-period range and the typical 1 ms motion-bus update rate. The industrial-grade -40C to +105C operating range suits it for servo, motion control, and factory automation deployments.
Typical applications include EtherCAT servo motor drives, decentralized digital I/O modules, EtherCAT sensor interfaces, robotic joint controllers, EtherCAT junction or branch modules, and other industrial-automation nodes. The STM32F303RE host reference design published by ST validates AX58100LT for FOC (field-oriented control) servo loops and points designers toward proven firmware stacks.
When designing with the AX58100LT, ensure the 80-pin LQFP-EP exposed pad is soldered with sufficient thermal via arrays to dissipate internal PHY power, and route the differential MDI pairs as 100-ohm differential controlled-impedance traces. The host MCU should run an ASIX-supported EtherCAT slave stack (e.g., SOES or SSC ported to the chosen MCU) to maximize bus conformance.
This page synthesizes distributor pricing, LQFP-80 drop-in alternatives, and practical industrial-board design notes not found in the raw manufacturer datasheet, giving the BOM engineer a complete procurement and design entry point for EtherCAT nodes built around the AX58100LT.
直接替换替代料： AX58100LT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
AX58100
✅ 直接替换📋 参考替代料（不在目录中）
AX58100
✅ 直接替换📋 参考替代料（不在目录中）
AX58100LT 规格参数
| 功能 | 2/3-Port EtherCAT Slave Controller (ESC) |
| Integrated PHYs | 2 x 100BASE-TX Fast Ethernet PHYs |
| Ethernet Speed | 10/100 Mbit/s |
| Number of Ports | 2 or 3 (port 0 can be disabled) |
| 电源电压 | 3.3 V |
| Host Interface | SPI / parallel host bus (to external MCU) |
| 工作温度 | -40C to +105C |
| 封装 | LQFP-80-EP (10x10 mm) with exposed thermal pad |
| 安装类型 | Surface Mount |
| Protocol | EtherCAT slave (ETG compliant) |
| EtherCAT Cycle Time | Supports 12.5 us / 50 us / 1 ms cycle times |
| RoHS 状态 | Compliant |
| Application Domain | Industrial automation, motion control, robotics, distributed I/O |
AX58100LT lqfp-80-ep (10x10 mm) with exposed thermal pad 引脚配置指南
AX58100LT（lqfp-80-ep (10x10 mm) with exposed thermal pad 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： AX58100LT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
AX58100LT 适用于 6 应用s: EtherCAT Servo Motor Drives, Distributed Digital I/O Modules, Robotic Joint Controllers, EtherCAT Sensor / Encoder Interfaces, EtherCAT Junction Modules and Branch Nodes, Smart-Factory Sensor Networks.
EtherCAT Servo Motor Drives
The AX58100LT's hardware EtherCAT protocol engine and dual integrated 100BASE-TX PHYs let it serve as the bus interface for FOC servo drives. Placed between the upstream EtherCAT master and the host MCU running torque/position loops, it offloads datagram processing so the MCU can run field-oriented control at 12.5 us cycle times. Its -40C to +105C industrial grade supports in-cabinet mounting next to IGBT power stages without derating.
推荐
Distributed Digital I/O Modules
EtherCAT digital I/O blocks use the AX58100LT to expose 16- or 32-bit process-data images over the same deterministic bus as drives. The two integrated PHYs allow line or tree topologies without extra components, and the SPI/parallel host interface to a Cortex-M0/M4 MCU makes the BOM small enough to fit in IP67 modules. Cycle times of 1 ms are easily met, and the industrial -40C to +105C range survives cabinet or field-mount temperature swings.
推荐
Robotic Joint Controllers
Each robotic joint can be a self-contained EtherCAT node built around the AX58100LT, offloading protocol work while the local MCU runs the joint's trajectory interpolator. The 3-port capability lets a robot arm chain joints without external switches, and the deterministic 12.5 us DC cycle aligns with high-stiffness collaborative-robot control loops. Industrial temp grade supports long-payload, high-current operation adjacent to power electronics.
推荐
EtherCAT Sensor / Encoder Interfaces
Rotary or linear encoders and force-torque sensors benefit from EtherCAT backhaul via the AX58100LT, which provides deterministic delivery of measurement data to the master. The two integrated PHYs reduce real-estate enough to fit into small-format sensor housings, while the -40C to +105C range handles machine-tool spindle encoders. SPI host interface keeps the encoder MCU and DSP lightweight.
推荐
EtherCAT Junction Modules and Branch Nodes
Junction modules that split an EtherCAT daisy-chain into branches need a 3-port ESC with no extra PHYs; the AX58100LT's configurable port-0 mode supplies this directly. Drop-in replacement of two-port plus external PHY designs cuts BOM and JTAG signal-integrity issues. Industrial temperature grade suits inside-the-cabinet installation in automotive welding and packaging lines.
推荐
Smart-Factory Sensor Networks
Smart-factory nodes that aggregate vibration, temperature, or current sensors and forward them over EtherCAT to a SCADA host can use the AX58100LT to bridge the IP-20 sensor cluster to the industrial backbone. The integrated dual-PHY removes the external PHY normally required, and the SPI/parallel host bus works with low-cost Cortex-M0 MCUs. Operating 12.5 us - 1 ms cycle times fit both monitoring and closed-loop process control.
推荐
推荐产品汇总
工程参考数据： AX58100LT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | AX58100 | ET1100 | LAN9252 |
|---|---|---|---|---|
| Brand | ASIX Electronics | ASIX Electronics | Beckhoff Automation | Microchip Technology |
| Package | LQFP-80-EP (10x10 mm) | LQFP-80-EP (10x10 mm) - same | QFP-144 (20x20 mm) - cross-package | LQFP-64 (10x10 mm) - cross-package |
| Function | 2/3-port EtherCAT Slave Controller | 2/3-port EtherCAT Slave Controller | 2-port EtherCAT Slave Controller | 2-port EtherCAT Slave Controller + integrated PHY |
| Integrated PHYs | 2 x 100BASE-TX | 2 x 100BASE-TX | 0 (external MII PHYs required) | 2 x 100BASE-TX |
| Host Interface | SPI / parallel host bus | SPI / parallel host bus | 8/16-bit parallel bus + SPI | SPI / parallel host bus |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40C to +105C | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| RoHS / Industrial Grade | RoHS / Yes | RoHS / No (commercial) | RoHS / Yes | RoHS / Yes |
关键差异点
- Integrated dual 100BASE-TX PHY in a single chip （对比 Beckhoff ET1100)
- Industrial -40C to +105C temperature grade in same LQFP-80 （对比 AX58100 (commercial variant))
- Larger LQFP package supports more GPIOs and improved thermal performance than Microchip LAN9252 （对比 Microchip LAN9252)
设计说明
The LQFP-80-EP exposed pad is the primary heat-dissipation path for the AX58100LT's two integrated 100BASE-TX PHYs and must be soldered to a top-side copper pour stitched with a thermal via array (0.3 mm drill, 1.0 mm pitch, filled-and-capped recommended) directly under the EP land. Estimated: with both PHYs running full 100BASE-TX traffic and the host SPI active, the AX58100LT may dissipate roughly 0.6-1.0 W; that power flows almost entirely through the EP, so skipping the via array is a common cause of thermal-shutdown resets in industrial cabinets.
Route each MDI pair (TD_P/N, RD_P/N per port) as a 100-ohm differential controlled-impedance trace over a continuous reference plane; keep pair skew below 50 ps and the traces at least 3x the trace-to-trace spacing away from noisy digital lines. Place the 100 nF + 10 uF decoupling capacitors as close as possible to each 3.3 V pin, and keep the 25 MHz reference-crystal traces short and guarded on the digital ground side.
Common engineering pitfalls when using the AX58100LT include (1) failing to bond the exposed pad to GND, causing logic-level glitches on EtherCAT datagrams, (2) omitting the 1.5 kV Ethernet port isolation magnetics or specifying non-100BASE-TX-rated RJ45 jack magnetics, (3) holding the slave reset / SPI host-mapped registers in the wrong boot state, which interrupts distributed-clock sync. Always inspect ASIX's AN-ECAT-001 (or the ASIX ESC development-kit schematics) before final tape-out.
The integrated dual-PHY design keeps the 100BASE-TX signal path short, but the board still benefits from a ferrite bead on the analog 3.3 V rail feeding the PHY blocks and a pi-filter at the MCU's VDD pins. Maintain a single uninterrupted chassis ground around the RJ45 footprints and stitch its perimeter with a 10-15 mm via pitch to the inner chassis plane, in line with the EtherCAT Technology Group's PI master spec from 2026-10-20.
合规信息
RoHS compliance confirmed via JLCPCB and LCSC AX58100LT listings (C968587, C2686107). Industrial -40C to +105C range per LCSC datasheet header. Reach confirmed via ASIX distributor listing. Lead-free finish confirmed by JLCPCB RoHS badge. AEC-Q100 is not_applicable (industrial IC, not automotive-qualified).
