ENC424J600T-I/ML

Controllers Overview

The ENC424J600T-I/ML is a stand-alone Fast Ethernet controller manufactured by Microchip Technology, housed in a 44-pin QFN package. It integrates a MAC and a 10/100Base-T PHY compliant with IEEE 802.3 specifications. The device supports data rates of 10 Mb/s and 100 Mb/s via an SPI interface operating at up to 14 Mbit/s or an 8-bit multiplexed parallel interface. It features 24 Kbytes of on-chip SRAM for packet buffering and includes hardware security engines for RSA, AES, MD5, and SHA-1 computations. Operating voltage ranges from 3.0V to 3.6V, with an industrial temperature range of -40°C to +85°C.

Controllers Feature Summary

• Integrates a complete MAC and 10/100Base-T PHY with automatic polarity detection and correction.
• Includes dedicated hardware security engines supporting RSA, Diffie-Hellman, AES, MD5, and SHA-1 algorithms.
• Provides a 24-Kbyte configurable transmit/receive packet buffer SRAM accessible in low-power modes.
• Supports full and half-duplex operation with programmable flow control and auto-negotiation.

Controllers Applications

• Microcontroller-based network interfaces requiring standalone Ethernet connectivity
• Industrial automation systems needing secure data transmission
• Embedded devices utilizing TCP/IP protocol stacks

Controllers Procurement Notes

Verify the specific suffix 'I/ML' corresponds to the industrial temperature grade (-40°C to +85°C) and the 44-pin QFN package type. Confirm that the required external components, such as the 25 MHz crystal and RBIAS resistor, are included in the bill of materials. Ensure the host microcontroller supports the selected communication interface, either SPI or parallel.

Controllers Selection Notes

Select this component when a standalone Ethernet solution is required without an integrated PHY. Compare against the ENC624J600 if additional parallel interface options (16-bit or demultiplexed) are necessary, as the ENC424J600 is limited to 44-pin packages. Verify that the host system can accommodate the 24-Kbyte memory requirement and that the cryptographic engine requirements align with the supported algorithms.

Controllers Part Context

This part belongs to the ENC424J600/624J600 family of stand-alone Ethernet controllers. The primary distinction within this family is the pin count and interface flexibility; the ENC424J600 utilizes a 44-pin package with SPI or 8-bit multiplexed parallel interfaces, whereas the ENC624J600 offers a 64-pin package with expanded parallel interface capabilities.

Controllers Replacement Considerations

ENC424J600T-I/PT is a direct replacement offering identical electrical and functional specifications but packaged in a 44-pin TQFP instead of QFN.