1893BY-10LFT

Overview

The ICS1893BY-10LFT is a low-power, fully integrated physical-layer device (PHY) compliant with ISO/IEC 10Base-T and 100Base-TX Ethernet standards. It operates on a single 3.3-V power supply and utilizes 0.35-micron CMOS technology, consuming typically 400 mW during operation and approximately 21 mW in power-down mode. The component supports unshielded twisted-pair Category 5 cables with attenuation exceeding 24 dB at 100 MHz. It provides PCS, PMA, PMD, and Auto-Negotiation sublayers within a small footprint 64-pin Thin Quad Flat Pack (TQFP) package.

Feature Summary

• Incorporates DSP-based Physical Medium Dependent (PMD) sublayer featuring adaptive equalization and baseline wander correction to eliminate errors from killer packets.
• Supports highly configurable node, repeater, and switch applications with managed or unmanaged capabilities.
• Features automatic crossover correction via Auto-MDI/MDIX functionality for plant wiring compatibility.
• Provides flexible MAC/Repeater interface options including Media Independent Interface (MII), 100M Symbol Interface, and 10M Serial Interface.

Applications

• Managed and unmanaged network switches
• Network interface cards (NICs)
• Industrial equipment requiring robust Ethernet connectivity

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm lead-free status and temperature range specifications. Confirm that the 64-pin TQFP package dimensions match the target PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component for designs requiring full IEEE 802.3 compliance with integrated auto-negotiation and parallel detection. Ensure the system architecture supports the required MII or serial interface configurations. Verify that the available clock sources meet the low-jitter synthesizer requirements specified in the datasheet.

Part Context

This device belongs to the PHYceiver™ family of integrated Ethernet physical layer controllers. It represents a single-chip solution combining multiple IEEE standard sublayers, designed to reduce board space and simplify the implementation of 10/100 Mbps Ethernet connections in various networking hardware.

Replacement Considerations

Consult the manufacturer's official obsolescence notices and replacement guides for verified equivalent part numbers. Cross-reference pinouts and electrical characteristics carefully when considering alternative components from other manufacturers.