PEF 24471 E V1.3

Telecom Overview

The PEF 24471 E V1.3 is a High-Speed Time-Slot Interchanger (HTSI) from the Infineon SWITI family, designed for telecommunications switching applications. It supports H.100 and H.110 bus interfaces in H-mode and operates as a master or slave device. The component features an Analog PLL (APLL) with clock fallback mechanisms to maintain synchronization during signal loss. It provides flexible connection modes including subchannel, multipoint, broadcast, and stream-to-stream switching. The device integrates a microprocessor interface compatible with Intel/Siemens and Motorola protocols, alongside JTAG boundary scan capabilities for testing.

Telecom Feature Summary

• Supports multiple switching modes including minimum delay, constant delay, subchannel, multipoint, broadcast, and bidirectional connections.
• Integrates an Analog Phase-Locked Loop (APLL) with automatic clock fallback to ensure continuous operation during primary clock failure.
• Provides versatile interface options including H-Bus, PCM local bus, and standard microprocessor buses.
• Includes comprehensive interrupt handling and indirect register addressing for efficient system configuration.

Telecom Applications

• Standard PBX or Central Office (CO) telephony systems
• Computer Telephony Integration (CTI) platforms
• Network routers and remote access servers
• Voice over IP (VoIP) gateway implementations

Telecom Procurement Notes

Verify component authenticity through official Infineon channels or authorized distributors. Confirm package integrity and pin alignment against the P-BGA-217-1 outline specifications. Ensure compatibility with existing system voltage levels and clock requirements before integration.

Telecom Selection Notes

Select this model when high-density time-slot interchanging is required for TDM networks. Evaluate the specific data rate requirements of the target application against the supported H.100/H.110 standards. Consider the available interface options and memory capacity for connection mapping needs.

Telecom Part Context

This component belongs to the SWITI family, which includes the PEF 20451 and PEF 20471 variants. These devices share a common architectural foundation but differ in specific interface configurations and memory sizes. The PEF 24471 is designated as the HTSI-XL variant within this series.

Telecom Replacement Considerations

Direct replacements include the PEF 20451 and PEF 20471 models from the same SWITI family. Verify functional equivalence regarding interface support and memory depth before substitution.