ENC28J60T/SS

Controllers Overview

The ENC28J60T/SS is a stand-alone Ethernet controller manufactured by Microchip Technology, designed for integration with host controllers via an industry-standard Serial Peripheral Interface (SPI). It complies with IEEE 802.3 specifications and integrates a Media Access Control (MAC) module and a 10Base-T Physical Layer (PHY) transceiver. The device features an 8-Kbyte dual-port SRAM buffer for packet storage and includes an internal Direct Memory Access (DMA) controller to facilitate high-speed data throughput. It supports both full-duplex and half-duplex communication modes and operates within a supply voltage range of 3.1V to 3.6V. The component is housed in a 28-pin Shrink Small Outline Package (SSOP) and is rated for industrial operating temperatures ranging from -40°C to +85°C.

Controllers Feature Summary

• Integrated MAC and PHY modules supporting 10Base-T networks with automatic polarity detection and correction.
• Internal DMA controller providing hardware-assisted checksum calculation and fast data movement capabilities.
• Configurable receive packet filtering mechanisms including support for unicast, multicast, broadcast, and pattern matching.
• Dual programmable LED output pins for visual indication of link status, network activity, and duplex mode.

Controllers Applications

• Embedded systems requiring standard Ethernet connectivity via SPI interface.
• Industrial control systems and PLCs needing reliable network communication.
• Smart metering and remote monitoring devices.
• Internet of Things (IoT) nodes and home automation equipment.

Controllers Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when sourcing this part number. Confirm that the 'I' designation corresponds to the industrial temperature range (-40°C to +85°C). Ensure the SSOP package width matches your PCB footprint requirements. Cross-reference the datasheet revision to confirm compatibility with your design specifications.

Controllers Selection Notes

Select this component for applications requiring a cost-effective, standalone Ethernet solution without an integrated TCP/IP stack. It is suitable for microcontrollers lacking native Ethernet peripherals but possessing an SPI interface. Consider the 8KB RAM limitation for large packet handling and ensure the host system can manage the software protocol stack required for network operations.

Controllers Part Context

The ENC28J60T/SS belongs to the broader ENC28J60 family of Ethernet controllers produced by Microchip Technology. This family provides a standardized interface for adding 10Mbps Ethernet capability to various embedded platforms. The 'T' suffix typically denotes tape-and-reel packaging for automated assembly, while 'SSOP' specifies the 28-pin shrink small outline package form factor.

Controllers Replacement Considerations

Direct pin-to-pin replacements are limited as the ENC28J60 is a specialized legacy component. Designers may consider newer Microchip Ethernet controllers such as the LAN8720 or LAN8187, though these often require different physical layer interfaces or additional external components. Verify software compatibility if migrating to a new controller architecture.