SAB82525N-V21TR

Specialized Overview

The SAB82525N-V21TR is a High-Level Serial Communication Controller Extended (HSCX) manufactured by Infineon Technologies. It features two independent full-duplex HDLC channels and supports data rates up to 4 Mbit/s. The device utilizes advanced ACMOS 3 technology with a supply voltage range of 4.75V to 5.25V. Power consumption is specified at 25 mW active at 4 MHz and 4 mW in standby. It includes on-chip FIFOs of 64 bytes per channel and direction, supporting DMA or interrupt-driven data transfers via an 8-bit demultiplexed bus interface compatible with Intel or Motorola microcontrollers.

Specialized Feature Summary

• Supports full-duplex HDLC protocols including LAPB, LAPD, and SDLC with automatic frame handling.
• Integrates on-chip Digital Phase Locked Loop (DPLL) for clock recovery and programmable baudrate generators.
• Features a 4-channel DMA interface for efficient block data transfer between system memory and internal FIFOs.
• Provides flexible serial interface modes including transparent transmission and time-slot assignment.

Specialized Applications

• ISDN terminal equipment and network interfaces
• High-speed synchronous serial communication links
• Time-division multiplex systems and packet switching networks

Specialized Procurement Notes

Verify component authenticity through official Infineon channels or authorized distributors. Confirm the specific revision suffix matches design requirements as ordering codes may vary. Check for end-of-life status and availability constraints prior to finalizing procurement plans.

Specialized Selection Notes

Select this controller for applications requiring hardware-offloaded HDLC protocol processing. Ensure the host system supports the required 8-bit bus interface and provides adequate DMA resources. Verify power supply stability within the specified voltage range to maintain operational integrity.

Specialized Part Context

This component belongs to the SAB 82525 series of High-Level Serial Communication Controllers. It is part of Infineon's legacy portfolio derived from Siemens semiconductor divisions, designed for robust serial data link management in telecommunications and industrial control environments.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate pin-compatible alternatives such as the SAF82525N series if functional equivalence is required, subject to detailed electrical parameter verification.