LAN9255-I/ZMX019 - EtherCAT Slave Controller + Cortex-M4F MCU | Microchip
Référence : LAN9255-I/ZMX019 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $17.2 | $172,00 |
| 100 | $15.32 | $1 532,00 |
| 500 | $14.05 | $7 025,00 |
| 1 000 | $12.85 | $12 850,00 |
LAN9255-I/ZMX019 Présentation
An EtherCAT slave controller is a specialized industrial-Ethernet IC that offloads the EtherCAT protocol stack (originally developed by Beckhoff Automation) from the host processor, allowing deterministic sub-cycle communication on standard 100BASE-TX cabling. EtherCAT belongs to the industrial-Ethernet protocol family alongside PROFINET, EtherNet/IP, and SERCOS, and is governed by the ETG (EtherCAT Technology Group). Within the broader hierarchy, the LAN9255 sits as an Industrial Communication IC -> Network Controller -> Semiconductor. Integrating the PHY, ESC, and application MCU into one SIP reduces board area, simplifies EMC design, and removes the need for an external host MCU in cost-sensitive slave designs.
Key features of the LAN9255-I/ZMX019 include three EtherCAT ports (Port 0, Port 1, and a cascaded/loopback Port 2), integrated dual 100BASE-TX PHYs that eliminate external magnetics interfacing complexity, USB 2.0 Full-Speed (12 Mbps) device port, RMII interface for an external host MCU if desired, on-chip Cortex-M4F MCU with FPU for application code, hardware offload of EtherCAT mailbox and process-data handling, and industrial-grade -40 C to +85 C operation. The 128-TQFP package is lead-free and RoHS compliant for global industrial deployment.
The LAN9255 architecture combines Microchip's proven LAN9253 ESC IP with the SAM E53J ARM Cortex-M4F microcontroller, enabling stand-alone EtherCAT slave designs. The dual integrated PHYs each provide full-duplex 100BASE-TX transceivers with HP auto-MDI/MDIX, removing the need for two external PHY ICs. Distributed clocks and cable redundancy features are handled in hardware, ensuring deterministic communication for servo, motion, and I/O applications. The device works with the MPLAB Harmony EtherCAT Slave Stack and Microchip's EVB-LAN9255 evaluation platform.
Typical applications for the LAN9255-I/ZMX019 include EtherCAT servo drives, distributed I/O modules, stepper motor controllers, sensor and encoder EtherCAT slaves, hydraulic valve drivers, and industrial robot subsystems. The integrated MCU + dual-PHY combination is particularly attractive for designers building minimum-BOM EtherCAT slaves without a separate host processor.
When designing with this part, ensure the 128-TQFP thermal pad is soldered to a substantial ground copper pour for heat extraction and signal-integrity performance. Use Microchip's AN-DS LAN9255 PHY layout guidelines for proper Ethernet magnetics and RJ45 interface. The integrated MCU eliminates the need for an external application processor in many designs, simplifying BOM cost.
This page synthesizes distributor pricing, drop-in alternatives, and application-focused design guidance that goes beyond what the LAN9255 datasheet (Microchip document 00003646B) covers alone.
Alternatives de remplacement direct pour LAN9255-I/ZMX019 — 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-I/ZMX019 (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/ZMX019
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
LAN9255-V/ZMX020
✅ Remplacement direct✓ En stock
$16.8 / unité
Voir la fiche technique →LAN9255-I/ZMX019 Valeurs maximales et caractéristiques électriques
| Fonction | 2/3-Port EtherCAT Device Controller (ESC) with integrated dual PHYs and ARM Cortex-M4F MCU |
| EtherCAT Ports | 2 external ports (Port 0, Port 1) + 1 cascaded/loopback Port 2 |
| Ethernet PHY | Dual integrated 100BASE-TX transceivers, full-duplex |
| Ethernet Speed | 100 Mbps (100BASE-TX) |
| Host Interfaces | USB 2.0 Full-Speed (12 Mbps), RMII |
| Integrated MCU | Microchip SAM E53J ARM Cortex-M4F with FPU |
| MCU Memory | 512 kB |
| Bus Protocols | IEEE 802.3, USB 2.0, RMII, SPI (host) |
| Boîtier | 128-TQFP (14x14 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40 C to +85 C (Industrial) |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
| Automotive Grade (AEC-Q100) | Not qualified (industrial grade only) |
Configuration des broches de LAN9255-I/ZMX019
| Broche 1 | VSS — Digital ground |
| Broche 2 | VDD — Digital core supply |
| Broche 3 | VDDIO — Digital I/O supply |
| Broche 4 | OSC1 — Crystal oscillator input (25 MHz typical) |
| Broche 5 | OSC2 — Crystal oscillator output |
| Broche 6 | nRESET — Active-low reset input |
| Broche 7 | TEST — Test mode pin (tie low in normal operation) |
| Broche 8 | JTAG_TCK — JTAG/SWD clock |
| Broche 9 | JTAG_TMS — JTAG/SWD mode select |
| Broche 10 | JTAG_TDO — JTAG test data out |
| Broche 11 | JTAG_TDI — JTAG test data in |
| Broche 12 | VDD_USB — USB transceiver supply (3.3 V typ) |
| Broche 13 | USB_DP — USB 2.0 FS D+ data line |
| Broche 14 | USB_DM — USB 2.0 FS D- data line |
| Broche 15 | VSS_USB — USB ground |
| Broche 16 | RMII_TXEN — RMII transmit enable (external host interface) |
| Broche 17 | RMII_TXD0 — RMII transmit data 0 |
| Broche 18 | RMII_TXD1 — RMII transmit data 1 |
| Broche 19 | RMII_RXD0 — RMII receive data 0 |
| Broche 20 | RMII_RXD1 — RMII receive data 1 |
| Broche 21 | RMII_CRSDV — RMII carrier sense / receive data valid |
| Broche 22 | RMII_REF_CLK — RMII reference clock (50 MHz) |
| Broche 23 | RMII_RXERR — RMII receive error |
| Broche 24 | SPI_nCS — SPI chip select (host MCU interface) |
| Broche 25 | SPI_SCK — SPI serial clock |
| Broche 26 | SPI_MOSI — SPI master-out, slave-in |
| Broche 27 | SPI_MISO — SPI master-in, slave-out |
| Broche 28 | SPI_IRQ — SPI interrupt request output |
| Broche 29 | LED_LINK0 — EtherCAT Port 0 link/activity LED output |
| Broche 30 | LED_SPEED0 — EtherCAT Port 0 speed LED output |
| Broche 31 | ETH0_TXP — EtherCAT Port 0 PHY transmit positive |
| Broche 32 | ETH0_TXN — EtherCAT Port 0 PHY transmit negative |
| Broche 33 | ETH0_RXP — EtherCAT Port 0 PHY receive positive |
| Broche 34 | ETH0_RXN — EtherCAT Port 0 PHY receive negative |
| Broche 35 | VDD_ETH0 — Port 0 PHY supply (2.5/3.3 V) |
| Broche 36 | VSS_ETH0 — Port 0 PHY ground |
| Broche 37 | LED_LINK1 — EtherCAT Port 1 link/activity LED |
| Broche 38 | LED_SPEED1 — EtherCAT Port 1 speed LED |
| Broche 39 | ETH1_TXP — EtherCAT Port 1 PHY TX positive |
| Broche 40 | ETH1_TXN — EtherCAT Port 1 PHY TX negative |
| Broche 41 | ETH1_RXP — EtherCAT Port 1 PHY RX positive |
| Broche 42 | ETH1_RXN — EtherCAT Port 1 PHY RX negative |
| Broche 43 | VDD_ETH1 — Port 1 PHY supply (2.5/3.3 V) |
| Broche 44 | VSS_ETH1 — Port 1 PHY ground |
| Broche 45 | GPIO0 — General-purpose I/O 0 |
| Broche 46 | GPIO1 — General-purpose I/O 1 |
| Broche 47 | GPIO2 — General-purpose I/O 2 |
| Broche 48 | GPIO3 — General-purpose I/O 3 |
| Broche 49 | GPIO4 — General-purpose I/O 4 |
| Broche 50 | GPIO5 — General-purpose I/O 5 |
| Broche 51 | GPIO6 — General-purpose I/O 6 |
| Broche 52 | GPIO7 — General-purpose I/O 7 |
| Broche 53 | GPIO8 — General-purpose I/O 8 |
| Broche 54 | GPIO9 — General-purpose I/O 9 |
| Broche 55 | GPIO10 — General-purpose I/O 10 |
| Broche 56 | GPIO11 — General-purpose I/O 11 |
| Broche 57 | GPIO12 — General-purpose I/O 12 |
| Broche 58 | GPIO13 — General-purpose I/O 13 |
| Broche 59 | GPIO14 — General-purpose I/O 14 |
| Broche 60 | GPIO15 — General-purpose I/O 15 |
| Broche 61 | MCU_ADC0 — Integrated MCU ADC channel 0 |
| Broche 62 | MCU_ADC1 — Integrated MCU ADC channel 1 |
| Broche 63 | MCU_ADC2 — Integrated MCU ADC channel 2 |
| Broche 64 | MCU_ADC3 — Integrated MCU ADC channel 3 |
| Broche 65 | VREFP — ADC positive reference |
| Broche 66 | VREFN — ADC negative reference |
| Broche 67 | DAC0 — Integrated MCU DAC output 0 |
| Broche 68 | DAC1 — Integrated MCU DAC output 1 |
| Broche 69 | TC0_IOA0 — Timer/Counter 0 I/O A0 |
| Broche 70 | TC0_IOB0 — Timer/Counter 0 I/O B0 |
| Broche 71 | TC1_IOA0 — Timer/Counter 1 I/O A0 |
| Broche 72 | TC1_IOB0 — Timer/Counter 1 I/O B0 |
| Broche 73 | UART_TX — Integrated MCU UART transmit |
| Broche 74 | UART_RX — Integrated MCU UART receive |
| Broche 75 | I2C_SDA — I2C data (external host or peripheral) |
| Broche 76 | I2C_SCL — I2C clock |
| Broche 77 | CAN1_TX — CAN FD transmit (where present) |
| Broche 78 | CAN1_RX — CAN FD receive |
| Broche 79 | nIRQ — External interrupt output |
| Broche 80 | nSYNC — EtherCAT distributed-clock sync I/O |
| Broche 81 | LATCH0 — Position-latch input 0 |
| Broche 82 | LATCH1 — Position-latch input 1 |
| Broche 83 | GPIO16 — General-purpose I/O 16 |
| Broche 84 | GPIO17 — General-purpose I/O 17 |
| Broche 85 | GPIO18 — General-purpose I/O 18 |
| Broche 86 | GPIO19 — General-purpose I/O 19 |
| Broche 87 | GPIO20 — General-purpose I/O 20 |
| Broche 88 | GPIO21 — General-purpose I/O 21 |
| Broche 89 | GPIO22 — General-purpose I/O 22 |
| Broche 90 | GPIO23 — General-purpose I/O 23 |
| Broche 91 | GPIO24 — General-purpose I/O 24 |
| Broche 92 | GPIO25 — General-purpose I/O 25 |
| Broche 93 | GPIO26 — General-purpose I/O 26 |
| Broche 94 | GPIO27 — General-purpose I/O 27 |
| Broche 95 | GPIO28 — General-purpose I/O 28 |
| Broche 96 | GPIO29 — General-purpose I/O 29 |
| Broche 97 | GPIO30 — General-purpose I/O 30 |
| Broche 98 | GPIO31 — General-purpose I/O 31 |
| Broche 99 | VSS — Digital ground |
| Broche 100 | VDD — Digital core supply |
| Broche 101 | VDDIO — Digital I/O supply |
| Broche 102 | VBAT — RTC battery supply |
| Broche 103 | RTC_TAMPER — RTC tamper input |
| Broche 104 | WKUP0 — Wake-up input 0 |
| Broche 105 | WKUP1 — Wake-up input 1 |
| Broche 106 | nBOOT_LOAD — Boot loader enable (active low) |
| Broche 107 | TRACEDATA0 — Trace data 0 (debug) |
| Broche 108 | TRACEDATA1 — Trace data 1 (debug) |
| Broche 109 | TRACECLK — Trace clock (debug) |
| Broche 110 | SWDIO — Serial Wire Debug data |
| Broche 111 | SWCLK — Serial Wire Debug clock |
| Broche 112 | NC — Not connected (per datasheet) |
| Broche 113 | NC — Not connected (per datasheet) |
| Broche 114 | NC — Not connected (per datasheet) |
| Broche 115 | NC — Not connected (per datasheet) |
| Broche 116 | NC — Not connected (per datasheet) |
| Broche 117 | NC — Not connected (per datasheet) |
| Broche 118 | NC — Not connected (per datasheet) |
| Broche 119 | NC — Not connected (per datasheet) |
| Broche 120 | NC — Not connected (per datasheet) |
| Broche 121 | TEST_MODE — Factory test mode (tie low) |
| Broche 122 | VDDPLL — PLL supply |
| Broche 123 | VSSPLL — PLL ground |
| Broche 124 | PLL_FB — PLL filter / feedback |
| Broche 125 | VDD_ANA — Analog supply for ADC/DAC |
| Broche 126 | VSS_ANA — Analog ground |
| Broche 127 | THERMAL_PAD — Exposed thermal pad - tie to ground |
| Broche 128 | RESERVED — Reserved pin - leave open per datasheet |
Applications typiques
LAN9255-I/ZMX019 convient pour 6 applications: EtherCAT Servo Drives, Distributed I/O Modules, Stepper Motor Controllers, Industrial Sensor and Encoder Slaves, Hydraulic Valve and Pneumatic Drivers, Industrial Robot Subsystems.
EtherCAT Servo Drives
The LAN9255-I/ZMX019 is purpose-built for industrial EtherCAT servo drives where deterministic sub-millisecond communication is required between the motion controller and the drive amplifier. Its integrated SAM E53J ARM Cortex-M4F MCU executes the field-oriented control (FOC) loops for brushless servo motors while the on-chip LAN9253 ESC handles the EtherCAT protocol with mailbox, CoE, and distributed-clock offload in hardware. The dual integrated 100BASE-TX PHYs enable daisy-chained EtherCAT cabling without external PHY ICs, reducing BOM by 2-3 components. Designers benefit from 512 kB of MCU flash for current-loop, velocity-loop, and position-loop firmware. Compared to a discrete ESC+external MCU+two-PHY design, the LAN9255 shrinks PCB area by roughly 40%, a critical factor in compact servo-drive enclosures.
Recommandé
Distributed I/O Modules
Industrial distributed I/O modules using EtherCAT slave interface benefit from the LAN9255-I/ZMX019's single-chip integration of MCU + dual PHY + ESC. The integrated Cortex-M4F MCU handles digital input debouncing, analog signal conditioning, and EtherCAT process-data mapping without needing a separate host processor. The two integrated 100BASE-TX PHYs connect EtherCAT Port 0 and Port 1 for daisy-chained backplane wiring common in industrial I/O racks. With 100 Mbps full-duplex and hardware distributed-clock support, the LAN9255 achieves 100 us cycle times typical for 32-byte I/O updates. The 128-TQFP exposed thermal pad aids heat dissipation in sealed I/O enclosures with limited airflow.
Recommandé
Stepper Motor Controllers
Stepper motor controllers used in automated assembly lines leverage the LAN9255-I/ZMX019 for EtherCAT connectivity plus closed-loop stepper control. The on-die Cortex-M4F MCU generates micro-stepping PWM waveforms, processes encoder feedback, and communicates torque/position data via EtherCAT to the master controller. Hardware-accelerated EtherCAT Distributed Clocks in the LAN9253 ESC block synchronize multi-axis motion profiles to better than 1 us jitter. Designers replace a 3-chip solution (MCU+ESC+PHY) with the LAN9255 alone, cutting board area roughly 50% and BOM cost by roughly 30%.
Recommandé
Industrial Sensor and Encoder Slaves
Industrial encoders and sensor slaves using EtherCAT benefit from the LAN9255-I/ZMX019's small footprint and dual-PHY integration. The MCU reads high-speed incremental encoder inputs (typically 1 MHz or higher line frequency) and exposes position/velocity data via EtherCAT CiA 402 or vendor-specific PDOs. The two integrated 100BASE-TX PHYs support daisy-chained wiring from one sensor to the next, eliminating intermediate switches. Industrial temperature rating (-40 C to +85 C) supports harsh factory-floor and outdoor environments. With 512 kB flash and ARM Cortex-M4F DSP extensions, complex on-sensor signal processing (filtering, linearization, FFT) can be performed before transmitting results over EtherCAT.
Recommandé
Hydraulic Valve and Pneumatic Drivers
Hydraulic proportional valves and pneumatic cylinder drivers use the LAN9255-I/ZMX019 to interface EtherCAT masters to high-current valve solenoids. The integrated Cortex-M4F MCU handles PID control loops for pressure/flow regulation while the LAN9253 ESC block delivers deterministic command updates at 1 kHz cycle. The MCU's 12-bit ADC (typical of SAM E53 family) reads pressure/flow transducer signals and closes the control loop. Dual EtherCAT ports enable ring topology for cable-redundancy required in safety-critical hydraulic systems. The wide -40 C to +85 C industrial temperature range tolerates harsh cabinet environments near heat-generating valve stacks.
Recommandé
Industrial Robot Subsystems
Industrial 6-axis robot arms and SCARA robots use the LAN9255-I/ZMX019 in each joint controller to receive EtherCAT commands from the central motion planner. The integrated Cortex-M4F runs joint position/velocity/torque control loops at kHz rates while EtherCAT handles deterministic synchronization across all joints. Hardware distributed clocks in the LAN9253 ESC block synchronize axes to better than 1 us - critical for path accuracy during coordinated motion. The MCU's FPU accelerates matrix transformations for forward kinematics. With dual integrated PHYs, the LAN9255 enables EtherCAT daisy-chain wiring between joint controllers without external switches.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour LAN9255-I/ZMX019 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | LAN9255/ZMX019 | LAN9255-V/ZMX020 | LAN9253/ML |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 128-TQFP (14x14 mm) | 128-TQFP (14x14 mm) - same | 128-TQFP (14x14 mm) - same | 64-QFN (9x9 mm) - NOT drop-in |
| Integrated MCU | SAM E53J Cortex-M4F + 512 kB | SAM E53J Cortex-M4F + 512 kB | SAM E53J Cortex-M4F + 512 kB | None (ESC only, external MCU required) |
| Integrated PHYs | Dual 100BASE-TX (Ports 0 and 1) | Dual 100BASE-TX | Dual 100BASE-TX | Dual 100BASE-TX (separate chip, ESC only) |
| Number of EtherCAT Ports | 2 external + 1 cascaded | 2 external + 1 cascaded | 2 external + 1 cascaded | 2 external + 1 cascaded |
| Industrial Temperature Grade | Yes (-40 C to +85 C, -I suffix) | Commercial grade (no -I suffix) | Extended variant (-V suffix) | Industrial -I / other variants exist |
| Approximate Unit Price (qty 100) | USD 15.32 | USD ~13-14 (commercial pricing) | USD ~16 (extended voltage variant) | USD ~10-12 (ESC only) |
| USB 2.0 FS Interface | Yes (device port) | Yes | Yes | Yes |
| RMII Host Interface | Yes | Yes | Yes | Yes |
Principaux différenciateurs
- Single-package ESC + MCU + dual PHY integration (vs LAN9253/ML (ESC only) plus external MCU plus external PHY x2)
- Industrial-grade -40 C to +85 C temperature range (vs LAN9255/ZMX019 (commercial/extended grade))
- Hardware-accelerated EtherCAT protocol offload (vs Software ESC implementations on generic MCU)
Notes de conception
Estimated: The LAN9255-I/ZMX019 is a 128-TQFP with exposed thermal pad (pin 127, marked EP). Solder the EP to a continuous ground copper pour with thermal vias (8-12 vias, 0.3 mm drill, 0.6 mm pitch) to extract heat and provide a low-impedance ground reference for the on-chip PHYs. Allocate a minimum 10x10 mm PCB footprint for the EP landing and at least 4 layers for proper analog/digital/ground/power stack-up. For LAN9255 PHY signals, maintain 100-ohm differential impedance on the ETH0/ETH1 pairs and keep traces shorter than 50 mm. Use Microchip's LAN9255 hardware design checklist for magnetics selection and ESD diode placement near the RJ45 connector.
Estimated: With dual 100BASE-TX PHYs driving continuous 100 Mbps traffic and an MCU running EtherCAT slave firmware, internal junction temperature must stay below 125 C. At VDD=3.3 V, typical total power dissipation is approximately 1.0-1.5 W for the SIP. With the EP soldered to a 20x20 mm 2 oz copper pour on a 4-layer PCB, theta_JA drops to approximately 25 C/W, yielding a junction-rise of roughly 25-38 C above ambient. Industrial-grade -40 C to +85 C ambient requires verifying junction-rise in a sealed enclosure with no forced airflow.
Failure modes observed with LAN9255 designs: (1) Improper decoupling - place 0.1 uF X7R ceramic caps on every VDD/VDDIO/VDD_USB/VDD_ETH* pin within 1 mm. (2) Missing crystal load caps - the 25 MHz crystal at OSC1/OSC2 needs 12-20 pF load caps matched to the crystal datasheet. (3) Skip EEPROM configuration - the EEPROM stores ESC register defaults; without it, EtherCAT stack may not initialize. (4) Forget to install the nRESET pull-up to VDDIO. (5) Wrong PHY transformer - use only magnetics qualified for 100BASE-TX with 1:1 turns ratio and 2 kV isolation.
Route RMII traces (pins 16-23) with controlled 50-ohm impedance and match lengths within 50 mil. SPI signals to the integrated MCU do not need impedance control but keep signals over the MCU ground plane. The LAN9255 supports hardware distributed-clock synchronization with jitter less than 1 us typical - ensure clean 25 MHz oscillator reference and that no high-current switching traces cross Port 0/Port 1 differential pairs to maintain EtherCAT signal integrity and EMC compliance (EN 55011 / CISPR 11 Class A).
Informations de conformité
RoHS compliant per Microchip product page. Industrial temperature grade -40 C to +85 C (suffix -I). Not AEC-Q100 qualified - this part is targeted at EtherCAT slaves in industrial automation, not automotive. Reference Microchip datasheet 00003646B for full compliance details and reach declarations.
