PEB 20525 F V1.3

Telecom Overview

The Infineon PEB20525 is a dual-channel Serial Optimized Communication Controller (SEROCCO-H) designed for HDLC and PPP protocols. It features two independent full-duplex channels with 64-byte transmit and receive FIFOs per channel. The device supports data rates up to 12.5 Mbit/s in synchronous mode and includes on-chip clock generation, baud rate generators, and DPLLs for clock recovery. It offers flexible serial interface configurations including programmable time slots for TDM connections and various data encoding methods such as NRZ, FM, and Manchester.

Telecom Feature Summary

• Supports HDLC/SDLC and Point-to-Point Protocol (PPP) modes with automatic flag detection and CRC checking
• Includes internal Baud Rate Generator and Digital Phase-Locked Loop (DPLL) for clock recovery
• Provides external DMA controller support for high-speed data transfer
• Features JTAG boundary scan interface for test access

Telecom Applications

• HDLC/PPP communication systems
• TDM interfaces (e.g., T1, E1)
• Signaling System #7 (SS7) operation

Telecom Procurement Notes

Verify the specific version suffix against official documentation, as revisions may alter pin multiplexing or electrical characteristics. Confirm package availability for P-LFBGA-80-2 or P-TQFP-100-3 formats. Ensure compatibility with required voltage levels and bus interface standards before integration.

Telecom Selection Notes

Select this component when dual-channel serial protocol handling is required. Evaluate the need for internal clock recovery via DPLL versus external clock sources. Consider the microprocessor interface timing requirements for Intel or Motorola bus modes during system design.

Telecom Part Context

The PEB20525 belongs to the SEROCCO-H family, derived from the ESCC and DSCC device families. It provides enhanced protocol support and simplified serial core configurations compared to predecessors, targeting datacom applications requiring robust serial communication control.

Telecom Replacement Considerations

Consult official replacement lists for updated versions. Verify functional equivalence regarding protocol support and interface timing if substituting with other SCC models.

Telecom FAQ

What are the supported data encoding methods?

The PEB20525 supports NRZ, NRZI, FM0, FM1, and Manchester data encoding.

How does the device handle clock recovery?

It utilizes an on-chip Digital Phase-Locked Loop (DPLL) for clock recovery in synchronous modes.

What is the depth of the FIFO buffers?

Each serial channel contains a 64-byte deep receive FIFO and a 64-byte deep transmit FIFO.