ICS1893BFT

Controllers Overview

The ICS1893BFT is a discontinued physical-layer device (PHY) manufactured by Renesas Electronics Corporation, originally developed by Integrated Device Technology. It supports ISO/IEC 10Base-T and 100Base-TX Ethernet standards with a single 3.3V power supply. The component operates within a commercial temperature range of 0°C to 70°C and consumes typically 400 mW during operation. It is housed in a 48-lead SSOP package with a width of 7.50 mm.

Controllers Feature Summary

• Fully integrated PHY providing PCS, PMA, PMD, and Auto-Negotiation sublayers compliant with IEEE 802.3 standards.
• DSP-based PMD includes adaptive equalization and baseline-wander correction for Category 5 cables.
• Supports Media Independent Interface (MII), auto-negotiation with parallel detection, and auto-MDI/MDIX crossover correction.
• Features low-power CMOS technology with a dedicated power-down mode.

Controllers Applications

• Network Interface Cards (NIC)
• PC Motherboards
• Ethernet Switches and Routers

Controllers Procurement Notes

Verify the obsolete status of the ICS1893BFT before design implementation. Confirm that the designated replacement part number meets all electrical and mechanical specifications required for your specific application environment. Ensure compatibility with existing board layouts when transitioning from the legacy component.

Controllers Selection Notes

Select this component only if the project accommodates end-of-life parts or utilizes existing inventory. Evaluate the pinout differences against alternative packages like the 56-pin MLF2 variant if space constraints require a different footprint. Verify that the 48-SSOP package dimensions fit the intended chassis or PCB area.

Controllers Part Context

This component belongs to the PHYceiver family of Ethernet controllers. It shares silicon performance with the ICS1893AF but utilizes a distinct 48-lead SSOP package rather than the smaller form factor options. The device integrates full Layer 1 functionality for twisted-pair Ethernet connections.

Controllers Replacement Considerations

The parameter-equivalent replacement is the 1893CFLFT. Verify pin compatibility and register mapping before substitution, as package changes may necessitate layout adjustments.

Controllers FAQ

Is the ICS1893BFT a pin-for-pin replacement for the ICS1893AF?

No, the datasheet explicitly states that the ICS1893BF is not a pin-for-pin replacement for the ICS1893AF, despite sharing the same proven circuitry.

What type of interface does the ICS1893BFT use to connect to the MAC?

It uses a Media Independent Interface (MII) to connect to the Media Access Control (MAC) layer.

Does the ICS1893BFT support automatic cable crossover correction?

Yes, it features an Auto-MDI/MDIX crossover correction capability to automatically correct crossover errors in plant wiring.