Renesas 89H32NT8AG2ZAHLG8

Overview

The 89H32NT8AG2ZAHLG8 from Integrated Device Technology, Inc. is a 32-lane, 8-port PCI Express Gen2 system interconnect switch with Non-Transparent Bridging (NTB), supporting up to 8 independent switch partitions, 5 GT/s per lane, and integrated DMA controllers for memory-to-memory transfers. It serves as a high-performance packet-switching hub in multi-host server and storage architectures.

For engineers reviewing the 89H32NT8AG2ZAHLG8 datasheet, 89H32NT8AG2ZAHLG8 pinout, 89H32NT8AG2ZAHLG8 application, or 89H32NT8AG2ZAHLG8 equivalent, key selection criteria include NTB endpoint count (up to 8), dynamic partition reconfiguration capability, PCIe Base Specification 2.1 compliance, 484-ball Flip Chip BGA package, and support for 32 GBps aggregate switching capacity.

Technical Context

This device implements a Combined Input Output Queued (CIOQ) switch core with cut-through latency and supports simultaneous peer-to-peer traffic across multiple domains. Its architecture integrates eight x4 configurable ports, per-lane SerDes with de-emphasis and receive equalization, and hardware-based error containment that isolates corrupted packets before egress.

Non-Transparent Bridging enables cross-domain communication via six BARs per NT endpoint, 32 doorbell registers, and 4 message registers - all configurable per partition. Switch partitioning allows dynamic reallocation of upstream/downstream ports between up to eight logical switches without firmware reload.

Key Specifications

Pinout & Package

Packaged in a 23 mm × 23 mm 484-ball Flip Chip BGA with 1.0 mm ball pitch. Pinout information is not publicly documented for this specific variant in available IDT documentation; official pin configuration must be verified against the 89HPES32NT8AG2 reference design files and IDT's 89KTPES32NT8AG2 evaluation kit layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PCIe Gen2 system interconnect switch applications.

Compared with the 89H32NT8AG2ZAHLG8, the 89HPES32NT24G2 offers greater port/lane scalability but demands more board space and power, while the 89H64NT8AG2 provides higher per-port bandwidth at the cost of reduced port count - both retain identical NTB, partitioning, and DMA capabilities for seamless software migration.

Availability

The 89H32NT8AG2ZAHLG8 is available at Aetrix Electronics and suitable for server storage redundancy, communications control plane failover, and high-fanout PCIe expansion requiring stable component supply across long-life industrial and telecom programs.

Supply support for 89H32NT8AG2ZAHLG8 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, interface, and interconnect solutions for high-performance computing and communications infrastructure.

The 89H32NT8AG2ZAHLG8 belongs to IDT's PES (PCI Express Switch) family, designed specifically for multi-host, fault-tolerant PCIe Gen2 system interconnects in servers, storage, and embedded control planes.

FAQ

What is the maximum number of independent switch partitions supported by the 89H32NT8AG2ZAHLG8?

The 89H32NT8AG2ZAHLG8 supports up to 8 fully independent switch partitions, each logically isolated with configurable downstream port numbering and dynamic reconfiguration capability. This allows runtime redistribution of upstream and downstream ports between partitions without resetting the device, enabling flexible resource allocation in multi-root systems.

Does the 89H32NT8AG2ZAHLG8 support PCIe Gen3 or higher speeds?

No, the 89H32NT8AG2ZAHLG8 is compliant only with PCI Express Base Specification 2.1 and operates at Gen2 speeds (5.0 GT/s). It does not support Gen3 (8.0 GT/s) or later generations. For Gen3 compatibility, IDT's later PES family devices such as the 89HPES832A series must be considered.

How many Non-Transparent Bridge (NTB) endpoints does the 89H32NT8AG2ZAHLG8 provide?

The 89H32NT8AG2ZAHLG8 supports up to 8 NTB endpoints, each with 6 BARs (including BAR2/BAR4 with lookup-table address translation), 32 doorbell registers, and 4 message registers. Each NTB endpoint can communicate with other switch partitions or external PCIe domains, enabling true multi-host inter-domain communication.

What package type and dimensions does the 89H32NT8AG2ZAHLG8 use?

The 89H32NT8AG2ZAHLG8 uses a 23 mm × 23 mm Flip Chip Ball Grid Array (FC-BGA) package with 484 solder balls and 1.0 mm ball pitch. This package is thermally optimized for high-power PCIe switching applications and requires controlled impedance PCB routing per IDT's reference design guidelines.

Is an evaluation kit available for the 89H32NT8AG2ZAHLG8?

Yes, the official IDT evaluation kit 89KTPES32NT8AG2 is compatible with the 89H32NT8AG2ZAHLG8. It includes the evaluation board, schematic, layout files, PCIe Browser GUI, Switch Partitioning API, Multicast API, DMA driver, and System Interconnect software - all validated for Gen2 NTB and dynamic partitioning functionality.