SAB 82526 N V2.2

Specialized Overview

The SAB 82526 N V2.2 is a High-Level Serial Communication Controller Extended (HSCX) manufactured by Infineon Technologies, housed in a 44-pin P-LCC surface-mount package. It operates on a single +5V supply with a voltage range of 4.75V to 5.25V. The device implements one full-duplex HDLC channel and supports data rates up to 4 Mbit/s. It features an 8-bit demultiplexed bus interface compatible with Intel or Motorola microcontrollers, integrated 64-byte FIFOs per direction, and DMA capability for efficient data transfer.

Specialized Feature Summary

• Supports Layer-2 protocol functions including LAPB, LAPD, and SDLC handling independently from the host processor.
• Integrates on-chip clock generation, baud rate generators, and Digital Phase Locked Loops (DPLL) for clock recovery.
• Provides flexible CPU interface options supporting both Intel and Motorola bus architectures via strapping pins.

Specialized Applications

• ISDN applications utilizing time division multiplex methods
• Packet switching systems requiring high-speed serial communication links
• Time-slot oriented PCM system implementations

Specialized Procurement Notes

Verify component authenticity through authorized distributors as this part may be obsolete. Confirm package integrity upon receipt, specifically checking for damage to the P-LCC-44 leads. Ensure storage conditions adhere to moisture sensitivity level requirements to prevent internal degradation before soldering.

Specialized Selection Notes

Select the SAB 82526 N when a single HDLC channel is sufficient for the design, offering pin and software compatibility with the dual-channel SAB 82525. Verify that the target microcontroller system supports the required 8-bit bus interface modes. Ensure the application environment accommodates the specified operating temperature range and power consumption limits.

Specialized Part Context

This component belongs to the HSCX family designed for serial synchronous communications. It serves as an evolution of the SAB 82520, providing extended functionality while maintaining backward compatibility. The SAB 82526 variant specifically addresses designs requiring only one serial channel, simplifying board layout compared to the dual-channel SAB 82525.

Specialized Replacement Considerations

The SAB 82525 N is a pin-compatible alternative if two independent channels are required instead of one. The SAF 82526 N offers radiation-hardened characteristics for specialized environments. Verify software register compatibility when substituting between these variants within the same product family.