Renesas 89HPEB383ZBEM8

Overview

89HPEB383ZBEM8 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 89HPEB383ZBEM8 datasheet, 89HPEB383ZBEM8 pinout, 89HPEB383ZBEM8 application, or 89HPEB383ZBEM8 equivalent, key selection criteria include transparent/non-transparent bridging mode support, PCIe 1.1 & PCI 3.0 compliance, short-term caching for 5× read throughput gain, and 10×10 mm 132-pin QFN packaging optimized for 4-layer PCB escape routing.

Technical Context

The 89HPEB383ZBEM8 implements a dual-domain bridge architecture with independent PCIe and PCI transaction layers, supporting both transparent mode (direct address pass-through) and non-transparent mode (address remapping between domains). It integrates a 4-master PCI arbiter and supports subtractive decode for legacy cycle forwarding.

It delivers high-performance bridging via 512-byte PCIe read completion buffer, 1-KB PCI read completion buffer, up to four outstanding memory reads per interface, and Advanced Error Reporting (AER) with End-to-End CRC (ECRC) generation and checking - all while maintaining full PCI Express Base Spec 1.1 and PCI Local Bus Spec 3.0 conformance.

Key Specifications

Pinout & Package

Package: 10 mm × 10 mm, 132-pin QFN (exposed thermal pad), RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 89HPEB383ZBEM8, the ZBEMGI variant offers broader thermal range for harsh environments, while the QFP version trades compact footprint for easier hand-soldering and legacy fab compatibility - neither is pin-compatible, but both share identical register mapping, configuration, and functional behavior.

Availability

89HPEB383ZBEM8 is available at Aetrix Electronics and suitable for motherboard expansion, digital video recorder (DVR) adapter cards, set-top box I/O extension, and multi-function printer controller designs requiring stable component supply and long-term industrial availability.

Supply support for 89HPEB383ZBEM8 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, serial switching, memory interface, and RF power solutions, acquired by Renesas Electronics in 2019.

The PEB383 product line was developed to deliver interoperable, low-power, high-performance bridging for legacy PCI peripheral integration into PCIe-based consumer and embedded platforms - targeting cost-sensitive, space-constrained applications like STBs, DVRs, and PC adapters.

FAQ

What is the primary function of the 89HPEB383ZBEM8?

The 89HPEB383ZBEM8 is a transparent/non-transparent x1 PCI Express to 32-bit/66 MHz PCI bridge IC. Its primary function is to enable legacy PCI peripherals to operate on modern PCIe-based host systems. It performs protocol translation, address mapping, and timing synchronization while supporting full PCI Express Base Spec 1.1 and PCI Local Bus Spec 3.0 compliance. The 89HPEB383ZBEM8 integrates critical functions including a 4-master PCI arbiter, subtractive decode, and short-term caching to maximize throughput.

Does the 89HPEB383ZBEM8 support 5V-tolerant PCI I/O?

Yes, the 89HPEB383ZBEM8 supports 5V-tolerant PCI I/O through dedicated VIO pins that configure the I/O voltage reference to either 3.3 V or 5 V. This eliminates the need for external level-shifting circuitry when interfacing with legacy 5V PCI devices. The 89HPEB383ZBEM8 maintains full electrical compatibility with PCI Local Bus Specification v3.0, including robustness against overvoltage conditions during hot-plug or mixed-voltage system operation.

What power management states does the 89HPEB383ZBEM8 support?

The 89HPEB383ZBEM8 supports PCI-defined power states D0 (fully active), D3 hot (low-power, link retained), and D3 cold (lowest power, link lost), plus ASPM L0s and L1 link-state power management per PCI Express Base Spec 1.1. Standby power consumption is specified at 130 mW. It complies with the PCI Bus Power Management Interface Specification v1.2 and accepts common PCH supply voltages with ±10% tolerance - all verified in the official IDT PEB383 Product Brief dated January 2010.

How does short-term caching improve performance in the 89HPEB383ZBEM8?

Short-term caching in the 89HPEB383ZBEM8 stores recent PCIe read completions locally to accelerate repeated or sequential read requests from the PCI side. This feature increases standard read throughput by 5× (500%) compared to non-cached bridges. It is implemented in hardware with no software overhead and operates transparently across both transparent and non-transparent bridging modes - a documented capability confirmed in the IDT PEB383 Product Brief and validated in DVR adapter card benchmarks.

Is the 89HPEB383ZBEM8 pin-compatible with other PEB383 variants?

No, the 89HPEB383ZBEM8 is not pin-compatible with other PEB383 variants. It uses a 10 mm × 10 mm, 132-pin QFN package with an exposed thermal pad. In contrast, the PEB383-14x14QFP variant uses a 14 mm × 14 mm, 128-pin QFP package with different pin count, pitch, and thermal characteristics. While both share identical silicon functionality and register-level compatibility, PCB layout and assembly processes must be redesigned for each package - the 89HPEB383ZBEM8 requires QFN-specific reflow and grounding of the thermal pad.