LAN9255-I/ZMX019 - EtherCAT Slave Controller + Cortex-M4F MCU | Microchip
N.º da peça: LAN9255-I/ZMX019 ✓ Ativo| Qtd. | Preço unitário | 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 Visão geral
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.
Alternativas drop-in para LAN9255-I/ZMX019 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com LAN9255-I/ZMX019 (mesmo formato e footprint) — diferindo em Ethernet PHY, Ethernet Speed, Host Interfaces, Integrated MCU, Operating Temperature.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
LAN9255/ZMX019
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
LAN9255-V/ZMX020
✅ Drop-In✓ Em estoque
$16.8 / unidade
Ver ficha técnica →LAN9255-I/ZMX019 Classificações máximas e características elétricas
| Função | 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) |
| Encapsulamento | 128-TQFP (14x14 mm) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40 C to +85 C (Industrial) |
| Status RoHS | Compliant |
| Lead-Free | Yes |
| Automotive Grade (AEC-Q100) | Not qualified (industrial grade only) |
Configuração de pinos do LAN9255-I/ZMX019
| Pino 1 | VSS — Digital ground |
| Pino 2 | VDD — Digital core supply |
| Pino 3 | VDDIO — Digital I/O supply |
| Pino 4 | OSC1 — Crystal oscillator input (25 MHz typical) |
| Pino 5 | OSC2 — Crystal oscillator output |
| Pino 6 | nRESET — Active-low reset input |
| Pino 7 | TEST — Test mode pin (tie low in normal operation) |
| Pino 8 | JTAG_TCK — JTAG/SWD clock |
| Pino 9 | JTAG_TMS — JTAG/SWD mode select |
| Pino 10 | JTAG_TDO — JTAG test data out |
| Pino 11 | JTAG_TDI — JTAG test data in |
| Pino 12 | VDD_USB — USB transceiver supply (3.3 V typ) |
| Pino 13 | USB_DP — USB 2.0 FS D+ data line |
| Pino 14 | USB_DM — USB 2.0 FS D- data line |
| Pino 15 | VSS_USB — USB ground |
| Pino 16 | RMII_TXEN — RMII transmit enable (external host interface) |
| Pino 17 | RMII_TXD0 — RMII transmit data 0 |
| Pino 18 | RMII_TXD1 — RMII transmit data 1 |
| Pino 19 | RMII_RXD0 — RMII receive data 0 |
| Pino 20 | RMII_RXD1 — RMII receive data 1 |
| Pino 21 | RMII_CRSDV — RMII carrier sense / receive data valid |
| Pino 22 | RMII_REF_CLK — RMII reference clock (50 MHz) |
| Pino 23 | RMII_RXERR — RMII receive error |
| Pino 24 | SPI_nCS — SPI chip select (host MCU interface) |
| Pino 25 | SPI_SCK — SPI serial clock |
| Pino 26 | SPI_MOSI — SPI master-out, slave-in |
| Pino 27 | SPI_MISO — SPI master-in, slave-out |
| Pino 28 | SPI_IRQ — SPI interrupt request output |
| Pino 29 | LED_LINK0 — EtherCAT Port 0 link/activity LED output |
| Pino 30 | LED_SPEED0 — EtherCAT Port 0 speed LED output |
| Pino 31 | ETH0_TXP — EtherCAT Port 0 PHY transmit positive |
| Pino 32 | ETH0_TXN — EtherCAT Port 0 PHY transmit negative |
| Pino 33 | ETH0_RXP — EtherCAT Port 0 PHY receive positive |
| Pino 34 | ETH0_RXN — EtherCAT Port 0 PHY receive negative |
| Pino 35 | VDD_ETH0 — Port 0 PHY supply (2.5/3.3 V) |
| Pino 36 | VSS_ETH0 — Port 0 PHY ground |
| Pino 37 | LED_LINK1 — EtherCAT Port 1 link/activity LED |
| Pino 38 | LED_SPEED1 — EtherCAT Port 1 speed LED |
| Pino 39 | ETH1_TXP — EtherCAT Port 1 PHY TX positive |
| Pino 40 | ETH1_TXN — EtherCAT Port 1 PHY TX negative |
| Pino 41 | ETH1_RXP — EtherCAT Port 1 PHY RX positive |
| Pino 42 | ETH1_RXN — EtherCAT Port 1 PHY RX negative |
| Pino 43 | VDD_ETH1 — Port 1 PHY supply (2.5/3.3 V) |
| Pino 44 | VSS_ETH1 — Port 1 PHY ground |
| Pino 45 | GPIO0 — General-purpose I/O 0 |
| Pino 46 | GPIO1 — General-purpose I/O 1 |
| Pino 47 | GPIO2 — General-purpose I/O 2 |
| Pino 48 | GPIO3 — General-purpose I/O 3 |
| Pino 49 | GPIO4 — General-purpose I/O 4 |
| Pino 50 | GPIO5 — General-purpose I/O 5 |
| Pino 51 | GPIO6 — General-purpose I/O 6 |
| Pino 52 | GPIO7 — General-purpose I/O 7 |
| Pino 53 | GPIO8 — General-purpose I/O 8 |
| Pino 54 | GPIO9 — General-purpose I/O 9 |
| Pino 55 | GPIO10 — General-purpose I/O 10 |
| Pino 56 | GPIO11 — General-purpose I/O 11 |
| Pino 57 | GPIO12 — General-purpose I/O 12 |
| Pino 58 | GPIO13 — General-purpose I/O 13 |
| Pino 59 | GPIO14 — General-purpose I/O 14 |
| Pino 60 | GPIO15 — General-purpose I/O 15 |
| Pino 61 | MCU_ADC0 — Integrated MCU ADC channel 0 |
| Pino 62 | MCU_ADC1 — Integrated MCU ADC channel 1 |
| Pino 63 | MCU_ADC2 — Integrated MCU ADC channel 2 |
| Pino 64 | MCU_ADC3 — Integrated MCU ADC channel 3 |
| Pino 65 | VREFP — ADC positive reference |
| Pino 66 | VREFN — ADC negative reference |
| Pino 67 | DAC0 — Integrated MCU DAC output 0 |
| Pino 68 | DAC1 — Integrated MCU DAC output 1 |
| Pino 69 | TC0_IOA0 — Timer/Counter 0 I/O A0 |
| Pino 70 | TC0_IOB0 — Timer/Counter 0 I/O B0 |
| Pino 71 | TC1_IOA0 — Timer/Counter 1 I/O A0 |
| Pino 72 | TC1_IOB0 — Timer/Counter 1 I/O B0 |
| Pino 73 | UART_TX — Integrated MCU UART transmit |
| Pino 74 | UART_RX — Integrated MCU UART receive |
| Pino 75 | I2C_SDA — I2C data (external host or peripheral) |
| Pino 76 | I2C_SCL — I2C clock |
| Pino 77 | CAN1_TX — CAN FD transmit (where present) |
| Pino 78 | CAN1_RX — CAN FD receive |
| Pino 79 | nIRQ — External interrupt output |
| Pino 80 | nSYNC — EtherCAT distributed-clock sync I/O |
| Pino 81 | LATCH0 — Position-latch input 0 |
| Pino 82 | LATCH1 — Position-latch input 1 |
| Pino 83 | GPIO16 — General-purpose I/O 16 |
| Pino 84 | GPIO17 — General-purpose I/O 17 |
| Pino 85 | GPIO18 — General-purpose I/O 18 |
| Pino 86 | GPIO19 — General-purpose I/O 19 |
| Pino 87 | GPIO20 — General-purpose I/O 20 |
| Pino 88 | GPIO21 — General-purpose I/O 21 |
| Pino 89 | GPIO22 — General-purpose I/O 22 |
| Pino 90 | GPIO23 — General-purpose I/O 23 |
| Pino 91 | GPIO24 — General-purpose I/O 24 |
| Pino 92 | GPIO25 — General-purpose I/O 25 |
| Pino 93 | GPIO26 — General-purpose I/O 26 |
| Pino 94 | GPIO27 — General-purpose I/O 27 |
| Pino 95 | GPIO28 — General-purpose I/O 28 |
| Pino 96 | GPIO29 — General-purpose I/O 29 |
| Pino 97 | GPIO30 — General-purpose I/O 30 |
| Pino 98 | GPIO31 — General-purpose I/O 31 |
| Pino 99 | VSS — Digital ground |
| Pino 100 | VDD — Digital core supply |
| Pino 101 | VDDIO — Digital I/O supply |
| Pino 102 | VBAT — RTC battery supply |
| Pino 103 | RTC_TAMPER — RTC tamper input |
| Pino 104 | WKUP0 — Wake-up input 0 |
| Pino 105 | WKUP1 — Wake-up input 1 |
| Pino 106 | nBOOT_LOAD — Boot loader enable (active low) |
| Pino 107 | TRACEDATA0 — Trace data 0 (debug) |
| Pino 108 | TRACEDATA1 — Trace data 1 (debug) |
| Pino 109 | TRACECLK — Trace clock (debug) |
| Pino 110 | SWDIO — Serial Wire Debug data |
| Pino 111 | SWCLK — Serial Wire Debug clock |
| Pino 112 | NC — Not connected (per datasheet) |
| Pino 113 | NC — Not connected (per datasheet) |
| Pino 114 | NC — Not connected (per datasheet) |
| Pino 115 | NC — Not connected (per datasheet) |
| Pino 116 | NC — Not connected (per datasheet) |
| Pino 117 | NC — Not connected (per datasheet) |
| Pino 118 | NC — Not connected (per datasheet) |
| Pino 119 | NC — Not connected (per datasheet) |
| Pino 120 | NC — Not connected (per datasheet) |
| Pino 121 | TEST_MODE — Factory test mode (tie low) |
| Pino 122 | VDDPLL — PLL supply |
| Pino 123 | VSSPLL — PLL ground |
| Pino 124 | PLL_FB — PLL filter / feedback |
| Pino 125 | VDD_ANA — Analog supply for ADC/DAC |
| Pino 126 | VSS_ANA — Analog ground |
| Pino 127 | THERMAL_PAD — Exposed thermal pad - tie to ground |
| Pino 128 | RESERVED — Reserved pin - leave open per datasheet |
Aplicações típicas
LAN9255-I/ZMX019 é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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%.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para LAN9255-I/ZMX019 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- 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)
Notas de projeto
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).
Informações de conformidade
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.
