Renesas 89HPES10T4G2ZBBCI

Overview

The 89HPES10T4G2ZBBCI from Integrated Device Technology, Inc. is a 10-lane, 4-port PCI Express Gen2 switch IC designed for high-throughput, low-latency interconnect in servers, storage systems, and communications infrastructure. It delivers 12 GBps full-duplex switching capacity, supports up to 2048-byte Max Payload Size, implements eight traffic classes and one virtual channel, and complies with PCI Express Base Specification Revision 2.0.

For engineers reviewing the 89HPES10T4G2ZBBCI datasheet, 89HPES10T4G2ZBBCI pinout, 89HPES10T4G2ZBBCI application, or 89HPES10T4G2ZBBCI equivalent, key selection considerations include its cut-through switch architecture, integrated 5 Gbps SerDes with RxEQ, SMBus-configurable dual-interface support, Hot-Plug I/O expander compatibility, and 19 mm × 19 mm 324-ball BGA packaging.

Technical Context

The 89HPES10T4G2ZBBCI implements a layered PCI Express architecture compliant with Revision 2.0, integrating SerDes, Physical, Data Link, and Transaction layers across all ports. Its switch core supports both store-and-forward and cut-through forwarding modes, enabling deterministic latency for memory and I/O transactions.

It features two independent SMBus interfaces - a slave interface for full register access and a master interface for EEPROM-based configuration loading and Hot-Plug I/O expander control. The device also incorporates on-chip packet buffering, internal end-to-end parity protection on all TLPs, and advanced error reporting including ECRC support.

Key Specifications

Pinout & Package

Package: 324-ball CABGA (19 mm × 19 mm, 1.0 mm pitch), RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PCIe Gen2 switching applications.

Compared with the 89HPES10T4G2ZBBCI, the 89HPES12T4G2ZBBCI provides greater lane scalability without changing software or layout, while the 89HPES8T4G2ZBBCI trades bandwidth for reduced power and BOM cost - making the 89HPES10T4G2ZBBCI the balanced choice for mainstream 3-downstream-port server and storage designs.

Availability

The 89HPES10T4G2ZBBCI is available at Aetrix Electronics and suitable for enterprise server I/O expansion, modular storage controller hubs, and communications network packet processor bridges requiring stable component supply, long lifecycle support, and RoHS-compliant packaging.

Supply support for 89HPES10T4G2ZBBCI 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

Integrated Device Technology, Inc. (IDT) is a fabless semiconductor company specializing in timing, memory interface, RF, and PCIe interconnect solutions for datacenter, communications, and industrial markets.

The 89HPES10T4G2ZBBCI belongs to IDT's PRECISE™ family of PCIe switching solutions, engineered specifically to deliver high-bandwidth, low-latency, and highly configurable fan-out switching for performance-critical infrastructure applications.

FAQ

What PCIe specification revision does the 89HPES10T4G2ZBBCI implement?

The 89HPES10T4G2ZBBCI implements the PCI Express Base Specification Revision 2.0, supporting Gen2 signaling at 5 Gbps per lane, 2048-byte maximum payload size, eight traffic classes, one virtual channel, and full compliance with the base specification's transaction, data link, and physical layer requirements.

Does the 89HPES10T4G2ZBBCI support Hot-Plug functionality on all downstream ports?

Yes, the 89HPES10T4G2ZBBCI supports PCI Express Hot-Plug on each of its three downstream ports (Ports 2, 4, and 6). It achieves this using an external SMBus-connected I/O expander, with dedicated GPIO pins (IOEXPINTN0, IOEXPINTN2) for interrupt handling and SMBus master transactions for output control.

What is the package type and thermal profile of the 89HPES10T4G2ZBBCI?

The 89HPES10T4G2ZBBCI uses a 324-ball CABGA package measuring 19 mm × 19 mm with 1.0 mm ball pitch. Its effective junction-to-ambient thermal resistance (θJA) is 23.6°C/W with zero airflow, 16.8°C/W at 1 m/s airflow, and 15.4°C/W at 2 m/s airflow - enabling operation without a heatsink on 8+ layer boards with ≥0.5 m/s airflow.

How many SMBus interfaces does the 89HPES10T4G2ZBBCI provide, and what are their roles?

The 89HPES10T4G2ZBBCI provides two independent SMBus interfaces: a slave interface (SSMBCLK/SSMBDAT) for full read/write access to all internal registers, and a master interface (MSMBCLK/MSMBDAT) used to load configuration from an external serial EEPROM and communicate with Hot-Plug I/O expanders.

Can the 89HPES10T4G2ZBBCI operate in both cut-through and store-and-forward modes?

Yes, the 89HPES10T4G2ZBBCI supports both cut-through and store-and-forward switching modes. Cut-through mode minimizes latency for time-sensitive I/O transactions, while store-and-forward mode ensures frame integrity verification before forwarding - selectable per-port via configuration registers.