ENC424J600-I/ML

Controllers Overview

The ENC424J600-I/ML is a stand-alone Fast Ethernet controller integrating a MAC and 10/100Base-T PHY. It supports IEEE 802.3 specifications with automatic polarity detection, auto-negotiation, and flow control. The device features a 24-Kbyte SRAM buffer for transmit/receive operations and general-purpose storage. It includes hardware security engines supporting RSA, Diffie-Hellman, AES (128/192/256-bit), MD5, and SHA-1 algorithms. Communication interfaces include a 14 Mbit/s SPI or an 8-bit multiplexed parallel interface. Operating voltage ranges from 3.0V to 3.6V, with an industrial temperature range of -40°C to +85°C.

Controllers Feature Summary

• Integrated cryptographic accelerators for RSA, AES, MD5, and SHA-1 computations
• Hardware-managed DMA with IP checksum calculation capabilities
• Flexible host connectivity via SPI or multiplexed parallel interfaces
• Built-in packet filtering and promiscuous reception support

Controllers Applications

• Microcontroller-based IoT devices requiring network connectivity
• Industrial automation systems needing secure data transmission
• Embedded networking equipment with limited MCU resources

Controllers Procurement Notes

Verify the package marking against the datasheet pinout diagram to confirm the QFN-44 EP configuration. Ensure the ordering suffix matches the required temperature grade and packaging format. Cross-reference the unique MAC address preprogramming status if serialized identification is critical for the deployment environment.

Controllers Selection Notes

Select this component when a standalone Ethernet solution is required without external PHY dependencies. The 44-pin QFN package suits space-constrained designs compared to larger TQFP options. Consider the parallel interface availability if higher throughput than SPI is necessary for the specific application protocol.

Controllers Part Context

This part belongs to the ENC424J600 family, which shares core functionality with the 64-pin ENC624J600 variant. The primary distinction lies in the available parallel interface modes; the 44-pin version supports only multiplexed 8-bit parallel access alongside SPI. Both variants share identical cryptographic engines and memory architecture.

Controllers Replacement Considerations

ENC424J600T-I/ML

Controllers FAQ

What clock frequency is required for the ENC424J600?

The device requires a fixed 25 MHz clock input on the OSC1 pin, generated by a crystal or external oscillator.

Does the ENC424J600 support full-duplex operation?

Yes, the device supports both half-duplex and full-duplex modes through auto-negotiation or manual configuration.

How is the internal voltage regulator powered?

The internal 1.8V regulator is powered by the 3.3V VDD rail and requires an external low-ESR capacitor (minimum 10 µF) connected to the VCAP pin.