LAN9255-V/ZMX020 - EtherCAT Slave Controller with MCU | Microchip
MPN: LAN9255-V/ZMX020 ✓ Hoạt độngLAN9255-V/ZMX020 Tóm tắt
An EtherCAT slave controller (ESC) is a specialized industrial-Ethernet IC that implements the Beckhoff EtherCAT slave protocol on the device side of an EtherCAT network. EtherCAT is a deterministic real-time Ethernet standard used for synchronized motion control, I/O, and drive communication in factory automation. The ESC sits below the EtherCAT master and the standard Ethernet/IP stack in the network hierarchy and works alongside general industrial controllers like PLCs and motion controllers.
Key features of the LAN9255-V/ZMX020 include dual integrated 100BASE-TX Ethernet PHYs supporting 100 Mbps full-duplex, a 3-port EtherCAT switch fabric supporting daisy-chain and ring topologies, USB 2.0 FS device/host interface, RMII for external PHY connection, SPI/QSPI for host communication, and 1024 KB of integrated Flash and 256 KB SRAM inside the SAM E53J MCU die. The integrated MCU is pre-flashed with a bootloader and can run application code for simple slaves, removing external processor overhead.
The device is designed for high-volume industrial EtherCAT slave applications where board space, BOM cost, and deterministic cycle time are critical. Typical cycle times below 62.5 µs are achievable through hardware FMMU, SyncManager, and DC (Distributed Clocks) engines.
Typical applications include EtherCAT digital and analog I/O modules, servo drives and stepper motor drivers, robotics servo nodes, sensor hubs, encoder interfaces, and other industrial automation peripherals. The dual PHY + MCU integration makes it ideal for compact, low-cost slaves with on-board intelligence.
When designing with the LAN9255, ensure proper 25 MHz reference oscillator quality for jitter compliance, route the MII/RMII traces as 50-ohm controlled impedance, and place the decoupling capacitors as close to the supply pins as possible. The exposed thermal pad must be soldered to a sufficient copper pour for thermal dissipation.
This page synthesizes distributor pricing across 9 channels, true drop-in alternatives in the same 128-TQFP-EP footprint, and practical design notes not found in the manufacturer datasheet, giving engineers a single source for selection, sourcing, and integration.
Bộ thay thế dễ dàng lắp đặt cho LAN9255-V/ZMX020 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với LAN9255-V/ZMX020 (cùng hình factor và footprint) — khác nhau ở Ethernet PHY, Ethernet Speed, Host Interfaces, Integrated MCU, Operating Temperature.
LAN9255/ZMX020
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LAN9255-V/ZMX020-VAO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LAN9255-V/ZMX020VAO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LAN9255-V/ZMX020 Tỷ lệ tối đa & tính chất điện
| Product Type | EtherCAT Slave Controller with integrated MCU |
| Protocol | EtherCAT (IEC 61158) |
| Ports | 2/3 ports (EtherCAT) |
| Ethernet PHY | Dual integrated 100BASE-TX |
| Ethernet Speed | 100 Mbps full-duplex |
| Integrated MCU | SAM E53J ARM Cortex-M4F |
| MCU Core | 32-bit ARM Cortex-M4F with FPU |
| MCU Flash | 1024 KB |
| MCU SRAM | 256 KB |
| Host Interfaces | USB 2.0 FS, RMII, SPI/QSPI |
| Bus Interface | RMII, USB 2.0, SPI, QSPI |
| Hộp | 128-TQFP-EP (14x14 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Điện áp cung cấp | 3.3 V (typical, with internal regulators) |
| Trạng thái RoHS | Compliant |
Cấu hình chân LAN9255-V/ZMX020
| Chân 1 | VSS — Ground |
| Chân 2 | VDD33 — +3.3V supply |
| Chân 3 | OSC_IN — 25 MHz reference oscillator input |
| Chân 4 | OSC_OUT — 25 MHz reference oscillator output |
| Chân 5 | RESETn — Active-low reset input |
| Chân 6 | TEST — Factory test pin, ground in application |
| Chân 7 | VDD_PHY — PHY analog supply |
| Chân 8 | TX1P — Port 1 Ethernet TX positive |
| Chân 9 | TX1N — Port 1 Ethernet TX negative |
| Chân 10 | RX1P — Port 1 Ethernet RX positive |
| Chân 11 | RX1N — Port 1 Ethernet RX negative |
| Chân 12 | VDD_PHY1 — Port 1 PHY supply |
| Chân 13 | TX0P — Port 0 Ethernet TX positive |
| Chân 14 | TX0N — Port 0 Ethernet TX negative |
| Chân 15 | RX0P — Port 0 Ethernet RX positive |
| Chân 16 | RX0N — Port 0 Ethernet RX negative |
| Chân 17 | VDD_PHY0 — Port 0 PHY supply |
| Chân 18 | VSS — Ground |
| Chân 19 | VDD33 — +3.3V supply |
| Chân 20 | LINK0 — Port 0 link status LED |
| Chân 21 | ACT0 — Port 0 activity LED |
| Chân 22 | LINK1 — Port 1 link status LED |
| Chân 23 | ACT1 — Port 1 activity LED |
| Chân 24 | SPI_SCK — SPI clock to external host |
| Chân 25 | SPI_MOSI — SPI host data into ESC |
| Chân 26 | SPI_MISO — SPI data from ESC to host |
| Chân 27 | SPI_CS — SPI chip select, active low |
| Chân 28 | IRQ — EtherCAT interrupt output |
| Chân 29 | WD_EN — Watchdog enable strap |
| Chân 30 | CFG0 — Boot configuration strap 0 |
| Chân 31 | CFG1 — Boot configuration strap 1 |
| Chân 32 | VDD12 — Internal 1.2V regulator output (decouple) |
| Chân 33 | VSS — Ground |
| Chân 34 | USB_DP — USB 2.0 FS D+ |
| Chân 35 | USB_DM — USB 2.0 FS D- |
| Chân 36 | USB_VBUS — USB VBUS sense |
| Chân 37 | USB_ID — USB OTG ID |
| Chân 38 | RMII_REF_CLK — RMII 50 MHz reference clock |
| Chân 39 | RMII_TXEN — RMII transmit enable |
| Chân 40 | RMII_TXD0 — RMII transmit data 0 |
| Chân 41 | RMII_TXD1 — RMII transmit data 1 |
| Chân 42 | RMII_CRS_DV — RMII carrier sense / data valid |
| Chân 43 | RMII_RXD0 — RMII receive data 0 |
| Chân 44 | RMII_RXD1 — RMII receive data 1 |
| Chân 45 | RMII_MDC — RMII management clock |
| Chân 46 | RMII_MDIO — RMII management data |
| Chân 47 | VDD33 — +3.3V supply |
| Chân 48 | VSS — Ground |
| Chân 49 | PA00 — MCU GPIO / peripheral function |
| Chân 50 | PA01 — MCU GPIO / peripheral function |
| Chân 51 | PA02 — MCU GPIO / peripheral function |
| Chân 52 | PA03 — MCU GPIO / peripheral function |
| Chân 53 | PA04 — MCU GPIO / peripheral function |
| Chân 54 | PA05 — MCU GPIO / peripheral function |
| Chân 55 | PA06 — MCU GPIO / peripheral function |
| Chân 56 | PA07 — MCU GPIO / peripheral function |
| Chân 57 | PA08 — MCU GPIO / peripheral function |
| Chân 58 | PA09 — MCU GPIO / peripheral function |
| Chân 59 | PA10 — MCU GPIO / peripheral function |
| Chân 60 | PA11 — MCU GPIO / peripheral function |
| Chân 61 | PA12 — MCU GPIO / peripheral function |
| Chân 62 | PA13 — MCU GPIO / peripheral function |
| Chân 63 | PA14 — MCU GPIO / peripheral function |
| Chân 64 | PA15 — MCU GPIO / peripheral function |
| Chân 65 | PA16 — MCU GPIO / peripheral function |
| Chân 66 | PA17 — MCU GPIO / peripheral function |
| Chân 67 | PA18 — MCU GPIO / peripheral function |
| Chân 68 | PA19 — MCU GPIO / peripheral function |
| Chân 69 | PA20 — MCU GPIO / peripheral function |
| Chân 70 | PA21 — MCU GPIO / peripheral function |
| Chân 71 | PA22 — MCU GPIO / peripheral function |
| Chân 72 | PA23 — MCU GPIO / peripheral function |
| Chân 73 | PA24 — MCU GPIO / peripheral function |
| Chân 74 | PA25 — MCU GPIO / peripheral function |
| Chân 75 | PA26 — MCU GPIO / peripheral function |
| Chân 76 | PA27 — MCU GPIO / peripheral function |
| Chân 77 | PA28 — MCU GPIO / peripheral function |
| Chân 78 | PA29 — MCU GPIO / peripheral function |
| Chân 79 | PA30 — MCU GPIO / peripheral function |
| Chân 80 | PA31 — MCU GPIO / peripheral function |
| Chân 81 | PB00 — MCU GPIO / peripheral function |
| Chân 82 | PB01 — MCU GPIO / peripheral function |
| Chân 83 | PB02 — MCU GPIO / peripheral function |
| Chân 84 | PB03 — MCU GPIO / peripheral function |
| Chân 85 | PB04 — MCU GPIO / peripheral function |
| Chân 86 | PB05 — MCU GPIO / peripheral function |
| Chân 87 | PB06 — MCU GPIO / peripheral function |
| Chân 88 | PB07 — MCU GPIO / peripheral function |
| Chân 89 | PB08 — MCU GPIO / peripheral function |
| Chân 90 | PB09 — MCU GPIO / peripheral function |
| Chân 91 | PB10 — MCU GPIO / peripheral function |
| Chân 92 | PB11 — MCU GPIO / peripheral function |
| Chân 93 | PB12 — MCU GPIO / peripheral function |
| Chân 94 | PB13 — MCU GPIO / peripheral function |
| Chân 95 | PB14 — MCU GPIO / peripheral function |
| Chân 96 | PB15 — MCU GPIO / peripheral function |
| Chân 97 | PB16 — MCU GPIO / peripheral function |
| Chân 98 | PB17 — MCU GPIO / peripheral function |
| Chân 99 | PB18 — MCU GPIO / peripheral function |
| Chân 100 | PB19 — MCU GPIO / peripheral function |
| Chân 101 | PB20 — MCU GPIO / peripheral function |
| Chân 102 | PB21 — MCU GPIO / peripheral function |
| Chân 103 | PB22 — MCU GPIO / peripheral function |
| Chân 104 | PB23 — MCU GPIO / peripheral function |
| Chân 105 | PB24 — MCU GPIO / peripheral function |
| Chân 106 | PB25 — MCU GPIO / peripheral function |
| Chân 107 | PB26 — MCU GPIO / peripheral function |
| Chân 108 | PB27 — MCU GPIO / peripheral function |
| Chân 109 | PB28 — MCU GPIO / peripheral function |
| Chân 110 | PB29 — MCU GPIO / peripheral function |
| Chân 111 | PB30 — MCU GPIO / peripheral function |
| Chân 112 | PB31 — MCU GPIO / peripheral function |
| Chân 113 | VDD33 — +3.3V supply |
| Chân 114 | VSS — Ground |
| Chân 115 | VDD12 — Internal 1.2V regulator output (decouple) |
| Chân 116 | SWCLK — MCU SWD clock (debug) |
| Chân 117 | SWDIO — MCU SWD data (debug) |
| Chân 118 | SWO — MCU SWD trace output |
| Chân 119 | JTAGEN — JTAG enable strap |
| Chân 120 | ERASE — Flash erase strap |
| Chân 121 | BOOT0 — MCU boot mode strap |
| Chân 122 | TEST1 — Factory test, ground in application |
| Chân 123 | NC — Not connected (per datasheet) |
| Chân 124 | NC — Not connected (per datasheet) |
| Chân 125 | VSS — Ground |
| Chân 126 | VDD33 — +3.3V supply |
| Chân 127 | NC — Not connected (per datasheet) |
| Chân 128 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
LAN9255-V/ZMX020 phù hợp cho 7 Áp dụngs: EtherCAT Digital I/O Modules, EtherCAT Servo Drives, EtherCAT Sensor Hubs and Encoders, Industrial Robotics Nodes, EtherCAT Communication Gateways, EtherCAT Valve Manifolds and Pneumatics, Motion Control I/O Terminals.
EtherCAT Digital I/O Modules
The LAN9255-V/ZMX020 is a natural fit for EtherCAT digital I/O modules because its 2/3-port EtherCAT switch fabric, dual integrated 100BASE-TX PHYs, and integrated SAM E53J Cortex-M4F MCU handle line, daisy-chain, and ring topologies in a single chip. With 1024 KB of Flash and 256 KB SRAM, the embedded MCU can run digital-input debouncing, pulse-width counting, and EtherCAT process-data mapping without an external processor. Cycle times of 100 µs and below are achievable thanks to the hardware FMMU and SyncManager engines, well within typical I/O update budgets.
Được đề xuất
EtherCAT Servo Drives
For servo drives and stepper drives, the LAN9255-V/ZMX020 provides hardware Distributed Clocks with sub-microsecond synchronization accuracy, which is essential for multi-axis coordinated motion. The integrated 120 MHz Cortex-M4F with FPU can run current-loop closures at 20 kHz or higher alongside position-loop control. Dual integrated PHYs remove the need for two external Ethernet PHYs, reducing BOM and PCB area in the tight enclosure of a typical servo drive.
Được đề xuất
EtherCAT Sensor Hubs and Encoders
The LAN9255-V/ZMX020 is widely used in EtherCAT sensor hubs and absolute encoder interfaces, where the integrated MCU can sample quadrature, SSI, or BiSS-C encoders and push position data into the EtherCAT process-data RAM via SPI. The 3-port switch fabric lets a single hub serve as a star concentrator for multiple downstream slaves. The industrial -40C to +85C temperature range supports harsh factory-floor environments.
Được đề xuất
Industrial Robotics Nodes
Robotics applications use the LAN9255-V/ZMX020 for joint controllers, gripper nodes, and tool changers that must communicate over EtherCAT at deterministic cycle times. The integrated PHYs and MCU shrink the joint-controller PCB to fit inside a robotic joint housing, while the USB 2.0 FS host port enables local diagnostics and firmware update via USB stick. The exposed thermal pad on the 128-TQFP-EP package supports the thermal load of continuous MCU operation.
Được đề xuất
EtherCAT Communication Gateways
The LAN9255-V/ZMX020 works as a low-cost EtherCAT-to-other-protocol gateway, where the integrated MCU runs a real-time translation between EtherCAT process data and protocols like Modbus, CANopen, or RS-485. The USB 2.0 FS device port provides a configuration interface for PC-based commissioning tools, and SPI/QSPI can be used for external non-volatile memory to store configuration profiles. The dual PHYs simplify wiring in gateway chassis.
Được đề xuất
EtherCAT Valve Manifolds and Pneumatics
Valve manifolds and pneumatic I/O islands use the LAN9255-V/ZMX020 for compact EtherCAT slave islands. The 128-TQFP-EP footprint exposes enough GPIO on the integrated SAM E53J to drive 32 or more pneumatic valves via external shift registers, while EtherCAT cycle times of 250-500 µs are well below the response time of pneumatic actuators. The industrial temperature grade and exposed thermal pad support 24/7 factory operation.
Được đề xuất
Motion Control I/O Terminals
Motion-control I/O terminals use the LAN9255-V/ZMX020 as the on-board EtherCAT slave + controller combination, offloading pulse-train generation, PWM, and capture functions from the central PLC. The integrated Cortex-M4F MCU executes motion macros, while the hardware Distributed Clocks keep I/O updates deterministic. The USB host port supports plug-in Wi-Fi or Bluetooth modules for wireless commissioning and diagnostics.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LAN9255-V/ZMX020 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | LAN9255/ZMX020 | LAN9255-V/ZMX020-VAO | LAN9255-V/ZMX020VAO |
|---|---|---|---|---|
| Package | 128-TQFP-EP (14x14) | 128-TQFP-EP (14x14) - same | 128-TQFP-EP (14x14) - same | 128-TQFP-EP (14x14) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Protocol | EtherCAT slave controller | EtherCAT slave controller | EtherCAT slave controller | EtherCAT slave controller |
| Integrated PHYs | 2 x 100BASE-TX | 2 x 100BASE-TX | 2 x 100BASE-TX | 2 x 100BASE-TX |
| Integrated MCU | SAM E53J Cortex-M4F, 1024 KB Flash | SAM E53J Cortex-M4F, 1024 KB Flash | SAM E53J Cortex-M4F, 1024 KB Flash | SAM E53J Cortex-M4F, 1024 KB Flash |
| Operating Temperature | -40C to +85C | 0C to +70C (commercial) | -40C to +85C | -40C to +125C (automotive) |
| Automotive Qualification | No (industrial) | No | Partial automotive | Yes (AEC-Q100) |
| Host Interfaces | USB 2.0 FS, RMII, SPI/QSPI | USB 2.0 FS, RMII, SPI/QSPI | USB 2.0 FS, RMII, SPI/QSPI | USB 2.0 FS, RMII, SPI/QSPI |
Bảo phân biệt quan trọng
- Only SiP with integrated MCU + dual PHY + ESC in one 128-TQFP-EP (vsLAN9253 (ESC only))
- Same-family automotive-grade option in identical footprint (vsLAN9255/ZMX020 (commercial temp grade))
- Built-in hardware Distributed Clocks (vsSoftware-only EtherCAT slaves)
Ghi chú thiết kế
The LAN9255-V/ZMX020 integrates two PHYs plus a Cortex-M4F MCU running up to 120 MHz into one 128-TQFP-EP package. Estimated: total SiP power dissipation can reach 1.2-1.5 W under full MCU + dual-PHY link load. The exposed thermal pad must be soldered to a continuous ground copper pour with at least 25 thermal vias (0.3 mm drill, 1.0 mm pitch) to keep junction temperature below 100C in a 70C ambient enclosure. Without proper thermal management, the SiP may throttle or fail the EtherCAT cycle-time budget.
Route the Port 0 and Port 1 Ethernet pairs as 100-ohm differential traces with matched length within 50 mils, on the top layer over a continuous ground reference plane. Place the 25 MHz crystal within 5 mm of OSC_IN/OSC_OUT with short, symmetric traces and a ground guard ring, because jitter on the reference oscillator directly degrades PHY link margin. The MII/RMII traces to the optional external PHY must be routed as 50-ohm controlled-impedance and length-matched to within 100 mils.
Do not leave any 3.3V supply pin floating. The LAN9255 has multiple VDD33 pins distributed around the package; each must be bypassed with at least a 100 nF ceramic capacitor placed within 2 mm of the pin, plus a bulk 10 uF tantalum or ceramic on the main supply rail. Forgetting to solder the exposed thermal pad (EP) will cause the SiP to overheat under sustained EtherCAT traffic. Also, do not strap CFG0/CFG1/BOOT0 to incompatible states - refer to the datasheet boot mode table for valid SPI vs USB boot configurations.
The LAN9255 integrates a 3.3V-to-1.2V LDO that supplies the MCU core and the digital portion of the PHYs. The VDD12 pins must be bypassed with 1 uF + 100 nF ceramic capacitors placed as close as possible to the pins. If the application needs the MCU to run at maximum 120 MHz, ensure the 3.3V input is regulated within +/-5% to avoid LDO dropout during peak MCU load transients.
Thông tin tuân thủ
RoHS compliant per Microchip product page. -V suffix indicates industrial temperature grade (-40C to +85C). AEC-Q100 qualified variants available as LAN9255-V/ZMX020VAO.
