CS8900A-IQ3Z

Controllers Overview

The CS8900A-IQ3Z is an embedded Ethernet controller manufactured by Cirrus Logic, designed for industrial applications with a temperature range of -40°C to 85°C. It operates on a 3.3V power supply and complies with RoHS standards. The device integrates on-chip RAM and a 10BASE-T transceiver filter, supporting both ISA bus interfaces and IEEE 802.3 standards. It provides 8-bit and 16-bit data transfer modes, typically interfacing via a 16-bit connection with base address 300H.

Controllers Feature Summary

• Integrated 10BASE-T transceiver filter and on-chip RAM eliminate the need for high-cost external components.
• Direct ISA bus interface with 24mA drivers supports both 8-bit and 16-bit microcontroller buses.
• Packet Page structure allows automatic adaptation to network traffic patterns and system resources.

Controllers Applications

• Industrial control systems requiring reliable network connectivity in harsh environments.
• Embedded systems utilizing ARM or MCU architectures for LAN integration.
• Portable devices and network all-in-one machines needing low-cost Ethernet solutions.

Controllers Procurement Notes

Verify the specific suffix IQ3Z confirms the industrial temperature grade (-40°C to 85°C) and 3.3V operation. Confirm RoHS compliance status as indicated by the Z suffix. Check current availability as this component family may be classified as obsolete or end-of-life by the manufacturer.

Controllers Selection Notes

Select the CS8900A-IQ3Z when industrial temperature stability and 3.3V logic levels are required. Ensure the host system supports ISA-compatible I/O mapping or memory-mapped access. Compare against commercial variants like CS8900A-CQ3 if environmental conditions do not require the extended industrial range.

Controllers Part Context

The CS8900A series represents a Crystal LAN solution optimized for embedded microcontrollers. The IQ3Z variant specifically targets industrial sectors, distinguishing itself from commercial versions through wider thermal tolerance and lead-free packaging compliance within the broader Cirrus Logic networking portfolio.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consider evaluating newer Cirrus Logic Ethernet controllers or generic compatible chips if obsolescence impacts production continuity.