Renesas 89HT0816PYABCI8

Overview

89HT0816PYABCI8 from Integrated Device Technology (IDT) is an 8-lane PCIe 3.0 retimer evaluation board built around the 89HT0816P IC, supporting 8.0 Gbps per lane, full protocol compliance, and on-board USB-to-I2C translation for GUI-based configuration. It enables in-system signal integrity testing with passive trace extension up to 24 inches.

For engineers reviewing the 89HT0816PYABCI8 datasheet, 89HT0816PYABCI8 pinout, 89HT0816PYABCI8 application, or 89HT0816PYABCI8 equivalent, this board supports PCIe 3.0 link training, per-lane equalization tuning, on-die scope diagnostics, JTAG/I2C configuration, and integration with SAS, Ethernet, and USB3 endpoint cards in open-chassis test environments.

Technical Context

The 89HT0816PYABCI8 implements a dual-retimer architecture: one 89HT0816P device (8-lane, 8.0 Gbps) mounted on the top side and a second T0816P (4-lane, 8.0 Gbps) on the reverse side, enabling flexible 4- or 8-lane PCIe 3.0 channel evaluation. It supports automatic EEPROM-based configuration load and real-time parameter adjustment via IDT's Retimer Configuration Utility.

It features dedicated I2C master/slave ports, JTAG debug interface, EQ hint switches for power-on preset selection, and Vreg circuitry supporting multiple power input options. The board uses a non-standard 7.5" × 4.75" form factor requiring open-chassis mounting.

Key Specifications

Availability

89HT0816PYABCI8 is available at Aetrix Electronics and suitable for PCIe 3.0 system validation, high-speed trace extension prototyping, and retimer IC characterization requiring stable component supply and repeatable lab deployment.

Supply support for 89HT0816PYABCI8 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 (IDT), now part of Renesas Electronics, designs high-performance analog, mixed-signal, and digital connectivity solutions for data centers, communications, and computing infrastructure.

The 89HT0816PYABCI8 belongs to IDT's PCIe retimer evaluation platform family, engineered specifically to accelerate PCIe 3.0 signal integrity validation, reduce design risk in long-trace systems, and enable rapid configuration of equalization, jitter cleanup, and link training behavior.

FAQ

What is the primary function of the 89HT0816PYABCI8 evaluation board?

The 89HT0816PYABCI8 evaluation board is a hardware platform designed to validate the operation of IDT's 89HT0816P 8-lane, 8.0 Gbps PCIe 3.0 retimer IC in real system conditions. It enables engineers to test signal integrity, perform per-lane equalization tuning, and verify link training across extended FR4 traces using passive extender cards - all via IDT's Windows-based Retimer Configuration Utility.

Does the 89HT0816PYABCI8 support PCIe 4.0 or higher data rates?

No. The 89HT0816PYABCI8 is strictly PCIe 3.0–compliant and rated for 8.0 Gbps per lane. It does not support PCIe 4.0 (16 Gbps) or higher signaling rates. Its retimer IC, the 89HT0816P, is architected for PCIe 3.0 protocol stack handling, including LTSSM control, SKP OS generation, and 8b/10b decoding - none of which extend to PCIe 4.0 specifications.

Can the 89HT0816PYABCI8 be used with x16 PCIe slots?

Yes. The 89HT0816PYABCI8 features a top-edge 16-lane PCIe slot that accepts any width add-in card (x1 to x16), but the retimer path operates only on 8 active lanes. Endpoint cards such as SATA controllers, Ethernet NICs, or USB3 adapters will train to x8 mode when inserted, enabling consistent 8-lane PCIe 3.0 evaluation regardless of physical slot width.

Is on-board JTAG debugging supported on the 89HT0816PYABCI8?

Yes. The 89HT0816PYABCI8 provides a dedicated JTAG interface alongside I2C and USB-to-I2C paths. This allows low-level register access, firmware debugging, and boundary-scan verification of the 89HT0816P retimer IC - critical for bring-up, failure analysis, and deep configuration validation beyond GUI capabilities.

What passive trace cards are compatible with the 89HT0816PYABCI8?

IDT offers matching passive FR4 trace extension cards in 6", 12", and 24" lengths, explicitly validated for use with the 89HT0816PYABCI8. These cards emulate real-world interconnect loss and jitter accumulation, allowing engineers to replicate target channel insertion loss (e.g., ~20 dB @ 4 GHz for 24") and assess the 89HT0816PYABCI8's equalization effectiveness under controlled conditions.