Infineon Technologies PEB20534H52-V2.1

Overview

PEB20534H52-V2.1 from Infineon Technologies is a DMA-supported quad-channel serial communication controller (DSCC4) designed for high-reliability datacom and telecom systems. It integrates four independent SCC cores, a PCI bus interface, dual-mode local bus (multiplexed/de-multiplexed), central DMA controller with descriptor-based transmit/receive engines, and supports HDLC/SDLC/PPP/LAPB protocols at up to 8 Mbps per channel.

For engineers reviewing the PEB20534H52-V2.1 datasheet, PEB20534H52-V2.1 pinout, PEB20534H52-V2.1 application, or PEB20534H52-V2.1 equivalent, key selection considerations include PCI 2.1 compliance, programmable clock modes (0–7), synchronous serial control (SSC) interface, multi-protocol SCC core configurability, and integrated central FIFOs with 4 kB total depth.

Technical Context

The DSCC4 implements a hierarchical bus architecture with PCI as primary host interface and optional local bus (LBI) extension supporting both multiplexed and de-multiplexed 16-bit/32-bit modes. Its four SCC cores operate independently with dedicated FIFOs and share access to central DMA resources via arbitration logic.

Each SCC core supports full-duplex and half-duplex operation, NRZ/NRZI/FM0/FM1/Manchester encoding, DPLL-based clock recovery, and configurable baud rate generation. Protocol handling includes HDLC auto/non-auto addressing, PPP framing variants, LAPB/LAPD link-layer functions, and extended transparent mode with preamble insertion and one-bit stuffing.

Key Specifications

Pinout & Package

PEB20534H52-V2.1 is housed in a 256-pin PQFP (Plastic Quad Flat Package) with 0.5 mm pitch, measuring 28 mm × 28 mm. Pin assignments are defined for PCI bus signals (AD[31:0], C/BE[3:0]#, PAR, FRAME#, IRDY#, TRDY#, STOP#, DEVSEL#), local bus interface (LAD[15:0], LCLK, LRDY, LWR, LRD), SSC interface (SCLK, SDAT, SFRM), GPP (GP[7:0]), and SCC channel I/O (TxD0–TxD3, RxD0–RxD3, RTS0–RTS3, CTS0–CTS3, CD0–CD3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multi-protocol serial controller applications.

Compared with Intel 82596 and MC68360, PEB20534H52-V2.1 delivers superior protocol flexibility, native PCI integration, and deterministic DMA performance - making it optimal for high-density, multi-protocol serial gateway designs where host CPU offload and timing precision are critical.

Availability

PEB20534H52-V2.1 is available at Aetrix Electronics and suitable for HSSI adapter development, ISDN PRI access nodes, legacy protocol gateways, and telecom infrastructure requiring stable component supply across extended product lifecycles.

Supply support for PEB20534H52-V2.1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and communications solutions, with global R&D and manufacturing facilities.

PEB20534H52-V2.1 belongs to Infineon's DSCC4 family of high-integration serial controllers, engineered specifically for carrier-grade datacom equipment requiring multi-protocol support, PCI plug-and-play, and deterministic real-time serial processing.

FAQ

Does PEB20534H52-V2.1 support hot-plug PCI insertion?

No. The device complies with PCI 2.1 specification but does not implement PCI Hot-Plug Controller logic or associated mechanical/electrical detection circuitry. It requires system-level power sequencing and initialization during cold boot only. Host BIOS must allocate resources before driver loading, and runtime reconfiguration is not supported.

What is the maximum sustained throughput achievable across all four channels?

With optimized descriptor chaining and central FIFO usage, the device sustains up to 32 Mbps aggregate throughput (8 Mbps per channel) under worst-case HDLC framing with 16-bit CRC and bit-stuffing. Real-world throughput depends on host memory bandwidth, interrupt latency, and descriptor setup overhead - measured benchmarks show 28–30 Mbps in PCI-bus-limited configurations.

Can the SSC interface be used simultaneously with all four SCC channels?

Yes. The SSC interface operates independently of the SCC cores and shares no internal resources with them. It uses dedicated pins (SCLK/SDAT/SFRM) and its own register set, enabling concurrent configuration of external PHY devices while SCC channels handle live data traffic - verified in Infineon's DS1 reference design.

Is there hardware support for IEEE 802.1Q VLAN tagging in the DSCC4?

No. The PEB20534H52-V2.1 performs Layer-2 serial framing only (HDLC/PPP/LAPB) and lacks Ethernet MAC functionality, VLAN tag insertion/removal logic, or Ethernet packet parsing. VLAN handling must be implemented in host software or upstream switch fabric - the device serves strictly as a serial line interface, not a network switch element.