Texas Instruments PCI2050BIPDVG4

Overview

PCI2050BIPDVG4 from Texas Instruments is a PCI-to-PCI bridge IC enabling hierarchical expansion of 32-bit, 66-MHz PCI buses with dual-bus concurrency, write combining, and CompactPCI hot-swap support - deployed in industrial control backplanes and embedded telecom chassis requiring deterministic latency and electrical isolation between primary and secondary buses.

For engineers reviewing the PCI2050BIPDVG4 datasheet, PCI2050BIPDVG4 pinout, PCI2050BIPDVG4 application, or PCI2050BIPDVG4 equivalent, key selection criteria include −40°C to +85°C industrial temperature rating, 208-pin PDV QFP package, 3.3-V core with 5-V tolerant I/Os, and compliance with PCI Local Bus Spec 2.2 and PCI-to-PCI Bridge Spec 1.1.

Technical Context

The PCI2050BIPDVG4 implements a two-tier arbitration architecture supporting up to nine secondary bus masters internally while allowing external arbiter integration. It enforces strict PCI protocol compliance including Type 0/Type 1 configuration cycles, posted/non-posted transaction handling, and SERR/PERR error reporting across both buses.

Its timing architecture delivers frame-to-frame latency of only four PCI clocks between buses, supports 66-MHz clock signal AC parameters per Section 6.4, and includes dedicated registers for secondary clock control (S_CLKOUT0–S_CLKOUT9), GPIO interface (GPIO0–GPIO3), and hot-swap event management (HS_ENUM, HS_LED, HSSWITCH).

Key Specifications

Pinout & Package

PCI2050BIPDVG4 is housed in a 208-pin PDV low-profile quad flat package (QFP) with 0.5-mm pitch, measuring 28 mm × 28 mm. The package supports standard reflow soldering and provides full signal access to primary and secondary PCI buses, JTAG test interface, GPIOs, and hot-swap control signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PCI2050BPDVG4, the PCI2050BIPDVG4 adds industrial temperature resilience without sacrificing performance or compatibility; compared with PCI2050BGHK, it retains QFP serviceability and avoids BGA-specific layout constraints while delivering identical bridge functionality.

Availability

PCI2050BIPDVG4 is available at Aetrix Electronics and suitable for industrial backplane expansion, telecom chassis interconnect, and embedded test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for PCI2050BIPDVG4 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 specializing in analog, embedded processing, and connectivity solutions with broad industrial and automotive design-in expertise.

The PCI2050B product line was engineered to extend PCI system scalability beyond electrical loading limits while maintaining full specification compliance - targeting high-reliability embedded computing and modular instrumentation platforms.

FAQ

What is the operating temperature range of the PCI2050BIPDVG4?

The PCI2050BIPDVG4 is rated for −40°C to +85°C operation, making it suitable for industrial environments where ambient conditions exceed commercial-grade limits. This extended range is achieved through process and packaging optimizations validated per TI's industrial qualification standards. The PCI2050BIPDVG4 maintains full functional compliance across this entire range, including timing, voltage tolerance, and hot-swap behavior.

Does the PCI2050BIPDVG4 support 66-MHz operation on both buses simultaneously?

Yes, the PCI2050BIPDVG4 supports concurrent 66-MHz operation on both primary and secondary PCI buses, provided that P_CLK and S_CLK are driven with clean, phase-aligned 66-MHz signals meeting PCI AC timing specifications (Section 6.4 of SCPS076G). The bridge's internal pipeline and buffering ensure deterministic latency and no throughput penalty when both buses operate at maximum frequency.

How does the PCI2050BIPDVG4 handle PCI parity errors?

The PCI2050BIPDVG4 detects and reports address and data parity errors on both buses via dedicated PERR and SERR signals, with separate status bits in the Status Register (Section 4.4) and Secondary Status Register (Section 4.19). It supports parity error forwarding, masking, and interrupt generation - enabling system-level error logging and recovery without requiring host CPU polling.

Can the PCI2050BIPDVG4 be used in CompactPCI hot-swap systems?

Yes, the PCI2050BIPDVG4 integrates native CompactPCI hot-swap functionality per PICMG 1.0, including HS_ENUM, HS_LED, and HSSWITCH/GPIO3 signals. It manages power sequencing, insertion detection, and LED status reporting directly in hardware - eliminating need for external hot-swap controllers and reducing BOM count in compliant backplanes.

What package type is used for the PCI2050BIPDVG4?

The PCI2050BIPDVG4 uses the 208-terminal PDV low-profile quad flat package (QFP), with 0.5-mm pitch and 28 mm × 28 mm body size. This RoHS-compliant, lead-free package supports standard reflow profiles and is compatible with automated optical inspection (AOI) and in-circuit test (ICT) fixtures commonly used in industrial electronics manufacturing.