LAN9255-V/ZMX020 - EtherCAT Slave Controller with MCU | Microchip
Référence : LAN9255-V/ZMX020 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $26.51 | $26,51 |
| 10 | $24.2 | $242,00 |
| 100 | $21.5 | $2 150,00 |
| 500 | $18.95 | $9 475,00 |
| 1 000 | $16.8 | $16 800,00 |
LAN9255-V/ZMX020 Présentation
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.
Alternatives de remplacement direct pour LAN9255-V/ZMX020 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec LAN9255-V/ZMX020 (même facteur de forme et même empreinte) — différant par Ethernet PHY, Ethernet Speed, Host Interfaces, Integrated MCU, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
LAN9255/ZMX020
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LAN9255-V/ZMX020-VAO
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LAN9255-V/ZMX020VAO
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LAN9255-V/ZMX020 Valeurs maximales et caractéristiques électriques
| 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 |
| Boîtier | 128-TQFP-EP (14x14 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40C to +85C (industrial) |
| Tension d'alimentation | 3.3 V (typical, with internal regulators) |
| Statut RoHS | Compliant |
Configuration des broches de LAN9255-V/ZMX020
| Broche 1 | VSS — Ground |
| Broche 2 | VDD33 — +3.3V supply |
| Broche 3 | OSC_IN — 25 MHz reference oscillator input |
| Broche 4 | OSC_OUT — 25 MHz reference oscillator output |
| Broche 5 | RESETn — Active-low reset input |
| Broche 6 | TEST — Factory test pin, ground in application |
| Broche 7 | VDD_PHY — PHY analog supply |
| Broche 8 | TX1P — Port 1 Ethernet TX positive |
| Broche 9 | TX1N — Port 1 Ethernet TX negative |
| Broche 10 | RX1P — Port 1 Ethernet RX positive |
| Broche 11 | RX1N — Port 1 Ethernet RX negative |
| Broche 12 | VDD_PHY1 — Port 1 PHY supply |
| Broche 13 | TX0P — Port 0 Ethernet TX positive |
| Broche 14 | TX0N — Port 0 Ethernet TX negative |
| Broche 15 | RX0P — Port 0 Ethernet RX positive |
| Broche 16 | RX0N — Port 0 Ethernet RX negative |
| Broche 17 | VDD_PHY0 — Port 0 PHY supply |
| Broche 18 | VSS — Ground |
| Broche 19 | VDD33 — +3.3V supply |
| Broche 20 | LINK0 — Port 0 link status LED |
| Broche 21 | ACT0 — Port 0 activity LED |
| Broche 22 | LINK1 — Port 1 link status LED |
| Broche 23 | ACT1 — Port 1 activity LED |
| Broche 24 | SPI_SCK — SPI clock to external host |
| Broche 25 | SPI_MOSI — SPI host data into ESC |
| Broche 26 | SPI_MISO — SPI data from ESC to host |
| Broche 27 | SPI_CS — SPI chip select, active low |
| Broche 28 | IRQ — EtherCAT interrupt output |
| Broche 29 | WD_EN — Watchdog enable strap |
| Broche 30 | CFG0 — Boot configuration strap 0 |
| Broche 31 | CFG1 — Boot configuration strap 1 |
| Broche 32 | VDD12 — Internal 1.2V regulator output (decouple) |
| Broche 33 | VSS — Ground |
| Broche 34 | USB_DP — USB 2.0 FS D+ |
| Broche 35 | USB_DM — USB 2.0 FS D- |
| Broche 36 | USB_VBUS — USB VBUS sense |
| Broche 37 | USB_ID — USB OTG ID |
| Broche 38 | RMII_REF_CLK — RMII 50 MHz reference clock |
| Broche 39 | RMII_TXEN — RMII transmit enable |
| Broche 40 | RMII_TXD0 — RMII transmit data 0 |
| Broche 41 | RMII_TXD1 — RMII transmit data 1 |
| Broche 42 | RMII_CRS_DV — RMII carrier sense / data valid |
| Broche 43 | RMII_RXD0 — RMII receive data 0 |
| Broche 44 | RMII_RXD1 — RMII receive data 1 |
| Broche 45 | RMII_MDC — RMII management clock |
| Broche 46 | RMII_MDIO — RMII management data |
| Broche 47 | VDD33 — +3.3V supply |
| Broche 48 | VSS — Ground |
| Broche 49 | PA00 — MCU GPIO / peripheral function |
| Broche 50 | PA01 — MCU GPIO / peripheral function |
| Broche 51 | PA02 — MCU GPIO / peripheral function |
| Broche 52 | PA03 — MCU GPIO / peripheral function |
| Broche 53 | PA04 — MCU GPIO / peripheral function |
| Broche 54 | PA05 — MCU GPIO / peripheral function |
| Broche 55 | PA06 — MCU GPIO / peripheral function |
| Broche 56 | PA07 — MCU GPIO / peripheral function |
| Broche 57 | PA08 — MCU GPIO / peripheral function |
| Broche 58 | PA09 — MCU GPIO / peripheral function |
| Broche 59 | PA10 — MCU GPIO / peripheral function |
| Broche 60 | PA11 — MCU GPIO / peripheral function |
| Broche 61 | PA12 — MCU GPIO / peripheral function |
| Broche 62 | PA13 — MCU GPIO / peripheral function |
| Broche 63 | PA14 — MCU GPIO / peripheral function |
| Broche 64 | PA15 — MCU GPIO / peripheral function |
| Broche 65 | PA16 — MCU GPIO / peripheral function |
| Broche 66 | PA17 — MCU GPIO / peripheral function |
| Broche 67 | PA18 — MCU GPIO / peripheral function |
| Broche 68 | PA19 — MCU GPIO / peripheral function |
| Broche 69 | PA20 — MCU GPIO / peripheral function |
| Broche 70 | PA21 — MCU GPIO / peripheral function |
| Broche 71 | PA22 — MCU GPIO / peripheral function |
| Broche 72 | PA23 — MCU GPIO / peripheral function |
| Broche 73 | PA24 — MCU GPIO / peripheral function |
| Broche 74 | PA25 — MCU GPIO / peripheral function |
| Broche 75 | PA26 — MCU GPIO / peripheral function |
| Broche 76 | PA27 — MCU GPIO / peripheral function |
| Broche 77 | PA28 — MCU GPIO / peripheral function |
| Broche 78 | PA29 — MCU GPIO / peripheral function |
| Broche 79 | PA30 — MCU GPIO / peripheral function |
| Broche 80 | PA31 — MCU GPIO / peripheral function |
| Broche 81 | PB00 — MCU GPIO / peripheral function |
| Broche 82 | PB01 — MCU GPIO / peripheral function |
| Broche 83 | PB02 — MCU GPIO / peripheral function |
| Broche 84 | PB03 — MCU GPIO / peripheral function |
| Broche 85 | PB04 — MCU GPIO / peripheral function |
| Broche 86 | PB05 — MCU GPIO / peripheral function |
| Broche 87 | PB06 — MCU GPIO / peripheral function |
| Broche 88 | PB07 — MCU GPIO / peripheral function |
| Broche 89 | PB08 — MCU GPIO / peripheral function |
| Broche 90 | PB09 — MCU GPIO / peripheral function |
| Broche 91 | PB10 — MCU GPIO / peripheral function |
| Broche 92 | PB11 — MCU GPIO / peripheral function |
| Broche 93 | PB12 — MCU GPIO / peripheral function |
| Broche 94 | PB13 — MCU GPIO / peripheral function |
| Broche 95 | PB14 — MCU GPIO / peripheral function |
| Broche 96 | PB15 — MCU GPIO / peripheral function |
| Broche 97 | PB16 — MCU GPIO / peripheral function |
| Broche 98 | PB17 — MCU GPIO / peripheral function |
| Broche 99 | PB18 — MCU GPIO / peripheral function |
| Broche 100 | PB19 — MCU GPIO / peripheral function |
| Broche 101 | PB20 — MCU GPIO / peripheral function |
| Broche 102 | PB21 — MCU GPIO / peripheral function |
| Broche 103 | PB22 — MCU GPIO / peripheral function |
| Broche 104 | PB23 — MCU GPIO / peripheral function |
| Broche 105 | PB24 — MCU GPIO / peripheral function |
| Broche 106 | PB25 — MCU GPIO / peripheral function |
| Broche 107 | PB26 — MCU GPIO / peripheral function |
| Broche 108 | PB27 — MCU GPIO / peripheral function |
| Broche 109 | PB28 — MCU GPIO / peripheral function |
| Broche 110 | PB29 — MCU GPIO / peripheral function |
| Broche 111 | PB30 — MCU GPIO / peripheral function |
| Broche 112 | PB31 — MCU GPIO / peripheral function |
| Broche 113 | VDD33 — +3.3V supply |
| Broche 114 | VSS — Ground |
| Broche 115 | VDD12 — Internal 1.2V regulator output (decouple) |
| Broche 116 | SWCLK — MCU SWD clock (debug) |
| Broche 117 | SWDIO — MCU SWD data (debug) |
| Broche 118 | SWO — MCU SWD trace output |
| Broche 119 | JTAGEN — JTAG enable strap |
| Broche 120 | ERASE — Flash erase strap |
| Broche 121 | BOOT0 — MCU boot mode strap |
| Broche 122 | TEST1 — Factory test, ground in application |
| Broche 123 | NC — Not connected (per datasheet) |
| Broche 124 | NC — Not connected (per datasheet) |
| Broche 125 | VSS — Ground |
| Broche 126 | VDD33 — +3.3V supply |
| Broche 127 | NC — Not connected (per datasheet) |
| Broche 128 | NC — Not connected (per datasheet) |
Applications typiques
LAN9255-V/ZMX020 convient pour 7 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour LAN9255-V/ZMX020 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Only SiP with integrated MCU + dual PHY + ESC in one 128-TQFP-EP (vs LAN9253 (ESC only))
- Same-family automotive-grade option in identical footprint (vs LAN9255/ZMX020 (commercial temp grade))
- Built-in hardware Distributed Clocks (vs Software-only EtherCAT slaves)
Notes de conception
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.
Informations de conformité
RoHS compliant per Microchip product page. -V suffix indicates industrial temperature grade (-40C to +85C). AEC-Q100 qualified variants available as LAN9255-V/ZMX020VAO.
