Renesas 89HPEB383ZANQ

Overview

89HPEB383ZANQ from Integrated Device Technology, Inc. is a transparent x1 PCI Express to 32-bit/66 MHz PCI bridge IC supporting plug-and-play BIOS enumeration, ultra-low standby power (130 mW), 128-byte PCIe max payload, and 5V-tolerant PCI I/O with VIO pins. It enables legacy PCI expansion on modern PCIe-based motherboards and DVR adapter cards.

For engineers reviewing the 89HPEB383ZANQ datasheet, 89HPEB383ZANQ pinout, 89HPEB383ZANQ application, or 89HPEB383ZANQ equivalent, key selection criteria include transparent/non-transparent bridging mode support, PCIe 1.1 and PCI 3.0 compliance, short-term caching for 5× read throughput, and 10×10 mm QFN-132 packaging optimized for 4-layer PCB escape routing.

Technical Context

The 89HPEB383ZANQ implements a dual-domain bridge architecture with independent PCIe and PCI transaction layers, supporting both transparent mode for direct address pass-through and non-transparent mode for address remapping between domains. It integrates a 4-master PCI arbiter and supports subtractive decode for legacy cycle forwarding.

PCI Express interface complies with Base Specification v1.1 and includes Advanced Error Reporting (AER), end-to-end CRC (ECRC), up to four outstanding memory reads, and L0s/L1 ASPM power states. PCI interface meets Local Bus Spec v3.0, operates at up to 66 MHz, and features 1-KB read completion buffer and 5V-tolerant I/O with dedicated VIO supply pins.

Key Specifications

Pinout & Package

89HPEB383ZANQ is housed in a 10×10 mm, 132-pin QFN package with exposed thermal pad. Pin functions are defined per IDT PEB383 Product Brief (Jan 2010) and confirmed via IDT official documentation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PCI Express-to-PCI bridge applications.

Compared with PEB383ZBNQ, 89HPEB383ZANQ offers superior PCB density and thermal performance in QFN form; compared with PI7C9X2G304SV, it delivers native, single-chip 32b/66MHz PCI bus support-critical for legacy peripheral integration without added logic or latency.

Availability

89HPEB383ZANQ is available at Aetrix Electronics and suitable for motherboard expansion, digital video recorder (DVR) adapter cards, set-top box I/O subsystems, and multi-function printer controller designs requiring stable component supply and long-term industrial availability.

Supply support for 89HPEB383ZANQ 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 communications, computing, and consumer electronics.

The PEB383 product line was developed to deliver ultra-low-power, high-interoperability PCIe-to-PCI bridging for cost-sensitive consumer platforms-emphasizing BIOS compatibility, 4-layer PCB design simplicity, and legacy peripheral support.

FAQ

What is the primary function of the 89HPEB383ZANQ?

The 89HPEB383ZANQ is a transparent and non-transparent x1 PCI Express to 32-bit/66 MHz PCI bridge IC. Its primary function is to enable legacy PCI peripherals to connect to modern PCIe-based host systems while maintaining full PCI 3.0 and PCIe 1.1 compliance. The 89HPEB383ZANQ achieves this through hardware-managed address translation, integrated arbitration, and support for both transparent and non-transparent bridging modes without requiring driver or BIOS modifications.

Does the 89HPEB383ZANQ support 5V-tolerant PCI I/O?

Yes, the 89HPEB383ZANQ supports 5V-tolerant PCI I/O via dedicated VIO supply pins, allowing direct connection to legacy 5V PCI devices without external level shifters. This feature is explicitly confirmed in the IDT PEB383 Product Brief and ensures robust operation in mixed-voltage environments such as set-top boxes and multi-function printers where 3.3V PCIe hosts interface with 5V PCI peripherals.

What power management features does the 89HPEB383ZANQ implement?

The 89HPEB383ZANQ implements PCI Bus Power Management Interface Spec v1.2 compliance, including D0, D3 hot, and D3 cold states, plus ASPM L0s and L1 link power management. Its standby power is specified at 130 mW. These capabilities allow the 89HPEB383ZANQ to meet stringent platform-level power budgets in consumer electronics while maintaining full interoperability during wake events and link retraining.

How does short-term caching improve performance in the 89HPEB383ZANQ?

Short-term caching in the 89HPEB383ZANQ accelerates PCIe-to-PCI read transactions by buffering recently accessed data, resulting in a documented 5× (500%) improvement in standard read throughput. This feature is especially valuable in DVR adapter cards where sustained bandwidth is required across multiple video decoder channels, directly reducing latency and eliminating bottlenecks in real-time streaming applications using the 89HPEB383ZANQ.

Is the 89HPEB383ZANQ pin-compatible with other PEB383 variants?

No, the 89HPEB383ZANQ is not pin-compatible with other PEB383 variants such as PEB383ZBNQ. The 89HPEB383ZANQ uses a 10×10 mm QFN-132 package with exposed thermal pad and unique pin assignment, whereas PEB383ZBNQ uses a 14×14 mm QFP-128 package with different pin count, layout, and thermal characteristics. Board redesign is required when substituting between these packages, though both share identical functional silicon and register-level compatibility.