TN82527

Controllers Overview

The Altera TN82527 is a legacy LAN controller IC designed for dual-channel local area network connectivity. It operates within a supply voltage range of 4.5V to 5.5V and draws a typical supply current of 50mA. The component is housed in a 44-PLCC package, also identified as 44-LCC (J-Lead), suitable for surface-mount or through-hole integration depending on the specific variant. This controller supports CM mode operations and provides essential interface capabilities for embedded systems requiring reliable network communication.

Controllers Feature Summary

• Dual-channel LAN controller functionality for network interface management
• Compatible with standard CMOS logic levels for system integration
• Robust input protection against voltage exceedance relative to Vcc

Controllers Applications

• Embedded network interface modules
• Legacy industrial control systems requiring dual Ethernet channels
• Network infrastructure equipment utilizing 5V logic families

Controllers Procurement Notes

Verify the exact package variant (PLCC vs LCC) and voltage specifications against the target system design. Ensure compatibility with existing 5V logic levels and confirm that the dual-channel architecture meets the specific bandwidth requirements of the application. Cross-reference datasheet revisions to ensure all electrical characteristics align with the intended operational environment.

Controllers Selection Notes

Select this component when a dedicated dual-channel LAN controller is required for systems operating at 5V. Consider the physical footprint of the 44-pin package and the thermal dissipation characteristics inherent to the PLCC/LCC form factor. Evaluate whether the integrated controller features suffice for the protocol stack implementation compared to modern MAC/PHY separated solutions.

Controllers Part Context

The TN82527 belongs to the family of Intel/Altera interface controllers, historically utilized in networking and computing applications before the widespread adoption of integrated SoC architectures. It represents an earlier generation of discrete network control solutions, offering standalone channel management without relying on complex external PHY components for basic link operation.

Controllers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Modern replacements typically involve integrated MAC/PHY combinations or FPGA-based soft-core implementations rather than direct pin-to-pin equivalents.