ENC424J600-I/PT

Controllers Overview

The ENC424J600-I/PT is a stand-alone Fast Ethernet controller manufactured by Microchip Technology, designed for IEEE 802.3 compliance at 10/100 Mbps speeds. It integrates a MAC and PHY with 24 Kbytes of on-chip SRAM buffer memory. The device supports SPI interfaces up to 14 Mbit/s and 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. It features hardware security engines for RSA, AES, MD5, and SHA-1 computations.

Controllers Feature Summary

• Integrated MAC and 10/100Base-T PHY with automatic polarity detection and correction
• Hardware security acceleration engines supporting RSA, Diffie-Hellman, AES, MD5, and SHA-1 algorithms
• Configurable transmit/receive packet buffer SRAM with hardware-managed circular FIFO
• Supports half and full-duplex operation with programmable flow control

Controllers Applications

• Microcontroller-based network interface modules
• Industrial automation systems requiring secure data transmission
• Embedded devices needing standalone Ethernet connectivity without external PHY

Controllers Procurement Notes

Verify the specific ordering suffix '-I/PT' corresponds to the industrial temperature grade (-40°C to +85°C) and TQFP-44 package. Confirm that the component matches the datasheet revision DS39935C. Ensure compatibility with host microcontroller SPI or parallel interface requirements before procurement.

Controllers Selection Notes

Select this component when a standalone Ethernet solution with integrated security engines is required. Compare against the ENC624J600 if additional parallel interface modes (demultiplexed or 16-bit) are necessary. Ensure the host system can provide a stable 25 MHz clock source for the oscillator pins.

Controllers Part Context

This part belongs to the ENC424J600/624J600 family of stand-alone Ethernet controllers. It shares core functionality with the ENC624J600 but differs in pin count and available parallel interface options. The 'I' suffix denotes industrial temperature rating, while '/PT' indicates the TQFP-44 package type.

Controllers Replacement Considerations

The ENC624J600 is a functional substitute offering expanded parallel interface capabilities in a 64-pin package. Verify pin compatibility and firmware adjustments if migrating between these variants due to differences in available interface modes.