Texas Instruments PCI2030PGF

Overview

PCI2030PGF from Texas Instruments is a PCI-to-PCI bridge IC enabling hierarchical expansion of 32-bit, 33-MHz PCI buses in embedded and industrial systems. It implements dual independent 32-bit PCI interfaces (primary and secondary), supports burst transfers, internal arbitration for up to six secondary bus masters, and provides six secondary PCI clock outputs. It operates with 3.3-V core logic and universal 3.3-V/5-V PCI signaling compatibility.

For engineers reviewing the PCI2030PGF datasheet, PCI2030PGF pinout, PCI2030PGF application, or PCI2030PGF equivalent, this device is critical for PCI bus segmentation, add-in card multi-device integration, electrical loading mitigation beyond ten devices per bus, and legacy PCI system scalability where predictable latency and subtractive decoding are required.

Technical Context

The PCI2030PGF implements a transparent, configuration-space-accessible bridge compliant with PCI Local Bus Specification 2.1 and PCI-to-PCI Bridge Specification 1.0. Its architecture includes independent read/write buffers per direction, secondary positive decode with configurable subtractive decoding, and serial IRQ bridging for interrupt aggregation across buses.

It features dual 3.3-V core logic with separate VCCP supplies for primary and secondary I/Os, enabling mixed 3.3-V/5-V signaling environments. The device supports concurrent operation, bus locking propagation, PCI Clock Run, and docking connect detection - all implemented in advanced submicron CMOS for low-power operation at 33 MHz.

Key Specifications

Pinout & Package

Packaged in a 176-pin plastic quad flatpack (PGF), the PCI2030PGF uses a JEDEC MS-026-compliant 0.5-mm pitch QFP with 24.2 mm × 24.2 mm body size and 1.35–1.60 mm height. Thermal and mechanical design supports standard reflow profiles and board-level reliability in industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Intel 21150 and PLX PCI9050, the PCI2030PGF delivers minimal-footprint, low-power, fully transparent PCI segmentation with guaranteed latency - making it uniquely suited for resource-constrained, electrically sensitive, and specification-bound industrial and medical platforms where simplicity and compliance outweigh feature bloat.

Availability

PCI2030PGF is available at Aetrix Electronics and suitable for industrial control backplanes, legacy PC add-in card expansion, embedded medical imaging systems, and test & measurement instrumentation requiring stable component supply and long-term obsolescence management.

Supply support for PCI2030PGF 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

Texas Instruments is a global semiconductor leader focused on analog, embedded processing, and connectivity technologies, with decades of expertise in high-reliability interface and system-on-chip solutions.

The PCI2030PGF belongs to TI's PCI interface product line, designed specifically for hierarchical PCI bus expansion in cost-sensitive, electrically constrained, and long-lifecycle embedded systems where standards compliance and deterministic timing are non-negotiable.

FAQ

What PCI specifications does the PCI2030PGF comply with?

The PCI2030PGF complies with PCI Local Bus Specification 2.1 and PCI-to-PCI Bridge Specification 1.0. It meets all mandatory timing, electrical, and protocol requirements for transparent bridging, including burst transfers, bus locking propagation, and predictable latency - verified in TI's production test flow per XCPS012 datasheet.

Does the PCI2030PGF support both 3.3-V and 5-V PCI signaling environments?

Yes, the PCI2030PGF supports universal PCI signaling via separate P_VCCP and S_VCCP supply pins. These can be independently set to either 3.3 V or 5 V, allowing the primary interface to connect to a 5-V motherboard while the secondary interface drives 3.3-V add-in cards - all without level shifters.

How many secondary bus masters can the PCI2030PGF arbitrate?

The PCI2030PGF provides internal arbitration for up to six secondary PCI bus masters, using dedicated S_REQ0–S_REQ5 and S_GNT0–S_GNT5 signals. This eliminates the need for external arbitration logic in most multi-device secondary bus implementations, reducing component count and layout complexity.

What is the function of the EEPROM interface on the PCI2030PGF?

The EEPROM interface on the PCI2030PGF loads TI's subsystem ID and subsystem vendor ID during power-up initialization. This enables automatic enumeration by BIOS or operating system without manual configuration - critical for plug-and-play deployment in embedded and industrial systems using the PCI2030PGF.

Is the PCI2030PGF pin-compatible with other TI PCI bridge devices?

No documented pin-to-pin compatibility exists between the PCI2030PGF and other TI PCI bridges (e.g., PCI2040 or PCI2050). The PCI2030PGF uses a unique 176-pin PGF package with specific signal allocation per XCPS012. Migration to newer TI bridges requires PCB redesign and firmware adaptation due to architectural and pinout differences.