Renesas 89H16NT16G2ZAHL8

Overview

89H16NT16G2ZAHL8 from IDT is an evaluation board (EB-LOGAN-19) designed to validate the 89HPES16NT16G2 PCIe Gen2 16-lane, 16-port switch - supporting x1/x2/x4/x8 link widths, NTB partitioning, and local port clocking in server/storage interconnect applications.

For engineers reviewing the 89H16NT16G2ZAHL8 datasheet, 89H16NT16G2ZAHL8 pinout, 89H16NT16G2ZAHL8 application, or 89H16NT16G2ZAHL8 equivalent, this board enables full hardware validation of PCIe 2.1 switch configuration, lane bifurcation, SMBus-managed EEPROM boot, and multi-partition NTB operation under real host endpoint topologies.

Technical Context

The 89H16NT16G2ZAHL8 implements the IDT PES16NT16G2 switch in a fully routed, debug-enabled platform with dual Mezzanine connectors (x8 electrical), four iSAS/SATA breakout interfaces, and JTAG access. It supports PCIe Base Specification 2.1 at 5 GT/s with automatic lane reversal, polarity inversion, and per-port link width negotiation.

Reference clocking is configurable via SMA inputs, onboard ICS841484 generator (100 MHz default), or SATA connectors, with global and local port clock modes controlled by DIP switches (S17, S19) and CLKMODE pins. Power sequencing enforces VDDCORE ≤ VDDIO – 1.0V during ramp-up.

Key Specifications

Availability

89H16NT16G2ZAHL8 is available at Aetrix Electronics and suitable for PCIe switch validation, server backplane prototyping, storage interconnect testing, and NTB-based multi-root system development requiring stable component supply and full hardware evaluation capability.

Supply support for 89H16NT16G2ZAHL8 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 systems.

The 89H16NT16G2ZAHL8 belongs to IDT's Logan family of PCIe evaluation platforms, engineered specifically to accelerate validation of PESxxNTxxG2-series switches in high-density, low-latency server and storage architectures.

FAQ

What is the primary function of the 89H16NT16G2ZAHL8 evaluation board?

The 89H16NT16G2ZAHL8 evaluation board is a hardware platform built to evaluate the IDT 89HPES16NT16G2 PCIe Gen2 16-port switch. It provides full electrical access to all 16 lanes, supports configurable clocking (global and local port modes), enables NTB partitioning, and allows validation of link training, hot-plug, and SMBus-based EEPROM boot in real PCIe topologies - not a standalone IC or production component.

Does the 89H16NT16G2ZAHL8 include the 89HPES16NT16G2 switch IC mounted on-board?

Yes, the 89H16NT16G2ZAHL8 evaluation board has the 89HPES16NT16G2 PCIe switch IC physically populated on the main PCB. The board routes all 16 lanes to Mezzanine and iSAS/SATA interfaces, includes voltage regulation, clock generation, JTAG, SMBus, and reset circuitry - enabling immediate functional evaluation without additional assembly.

Can the 89H16NT16G2ZAHL8 be used to evaluate both the 89HPES16NT16G2 and 89HPES24NT24G2 switches?

Yes - the 89H16NT16G2ZAHL8 (EB-LOGAN-19) is explicitly documented as supporting evaluation of multiple devices in the Logan switch family, including the 89HPES16NT16G2 and 89HPES24NT24G2. Its flexible jumper/DIP-switch configuration, scalable power delivery, and modular mezzanine architecture allow re-use across variants with different lane/port counts.

What clock sources are supported by the 89H16NT16G2ZAHL8 for the 89HPES16NT16G2 switch?

The 89H16NT16G2ZAHL8 supports three clock source options for the 89HPES16NT16G2: (1) external differential reference via SMA connectors (J17/J20/J66/J67), (2) onboard ICS841484 generator (U49) outputting 100 MHz by default, or (3) SATA connectors (J21/J22/J62/J64). Global clock frequency is selected via SW10[2]; local port clocks are fixed at 100 MHz and sourced via DIP switches S17/S19.

Is software required to operate the 89H16NT16G2ZAHL8, and what OS platforms are supported?

No firmware runs on the 89H16NT16G2ZAHL8 itself - it is a hardware-only evaluation platform. However, IDT provides host-side device management software for Windows (Server 200x, XP, Vista) and Linux, enabling register-level access to the 89HPES16NT16G2, EEPROM programming, and configuration scripting - essential for validating switch behavior in target operating environments.