Texas Instruments PCI2050BIPDV

Overview

PCI2050BIPDV 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. It operates across −40°C to 85°C, features 3.3-V core logic with 5-V tolerant I/Os, and implements two-tier arbitration for up to nine secondary bus masters - used in industrial embedded systems requiring reliable bus segmentation and legacy PCI interoperability.

For engineers reviewing the PCI2050BIPDV datasheet, PCI2050BIPDV pinout, PCI2050BIPDV application, or PCI2050BIPDV equivalent, key selection criteria include temperature range compliance (−40°C to 85°C), 208-pin QFP package compatibility, 66-MHz timing margin validation, and CompactPCI hot-swap enablement via HSLED/HS_ENUM signals.

Technical Context

The PCI2050BIPDV implements a transparent, configuration-space-accessible bridge with separate read/write buffers per direction and pipeline architecture supporting burst transfers. It supports Type 0 and Type 1 configuration cycles, frame-to-frame latency of four PCI clocks, and programmable decode options for VGA/palette memory and I/O address spaces.

Its power management conforms to PCI Bus Power Management Interface Specification Revision 1.1, with dedicated PMCSR registers and low-power state behavior defined. Secondary bus arbitration includes internal two-tier control and optional external arbiter interface, while JTAG boundary scan (TCK/TMS/TDO/TDI/TRST) enables IEEE 1149.1-compliant test access.

Key Specifications

Pinout & Package

PCI2050BIPDV is housed in a 208-terminal low-profile quad flat package (PDV), measuring 28 mm × 28 mm with 0.5-mm lead pitch. The package supports standard reflow soldering and provides full signal access without ball-grid complexity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with PCI2050BPDV, the PCI2050BIPDV adds extended temperature qualification without altering electrical or functional behavior - making it the sole drop-in solution for industrial thermal environments. Against PCI2050BGHK, it trades BGA density for QFP manufacturability while retaining identical bridge logic and hot-swap capability.

Availability

PCI2050BIPDV is available at Aetrix Electronics and suitable for industrial control backplanes, CompactPCI hot-swap cards, and legacy PCI extension systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for PCI2050BIPDV 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.

The PCI2050BIPDV belongs to TI's Connectivity Solutions portfolio, designed specifically to extend PCI bus architectures with robust bridging, hot-swap readiness, and industrial-grade reliability - targeting backplane and modular system integrators.

FAQ

What is the operating temperature range of the PCI2050BIPDV?

The PCI2050BIPDV is rated for operation from −40°C to 85°C, making it suitable for extended industrial environments including factory automation, transportation systems, and outdoor deployed equipment where ambient temperatures exceed commercial grade limits. This specification is validated per TI's SCPS076G data manual and confirmed in the Ordering Information table on page 1−2. The device maintains full 66-MHz PCI timing compliance across this entire range.

Does the PCI2050BIPDV support 66-MHz PCI operation on both buses?

Yes, the PCI2050BIPDV supports 66-MHz operation on both the primary and secondary PCI buses, as explicitly stated in Section 1.1 Features and verified in Section 6.4 (66-MHz PCI Clock Signal AC Parameters). It requires proper termination and trace length matching per PCI Local Bus Specification Revision 2.2, and uses P_M66ENA/S_M66ENA pins to enable high-speed mode. The bridge maintains full compliance with PCI-to-PCI Bridge Specification Revision 1.1 at this frequency.

Is the PCI2050BIPDV pin-compatible with other PCI2050B variants?

Yes, the PCI2050BIPDV shares identical pinout and signal mapping with the PCI2050BPDV and PCI2050BPPM variants - all use the 208-terminal PDV/PPM QFP package. Pin compatibility is confirmed by Figure 2−2 (PDV Terminal Diagram) and Table 2−1 (PDV Signal Names), which apply directly to PCI2050BIPDV per the Ordering Information table. No PCB redesign is needed when upgrading from PDV to IPDV for extended temperature support.

How does the PCI2050BIPDV implement CompactPCI hot-swap functionality?

The PCI2050BIPDV implements CompactPCI hot-swap per PICMG 1.0 via dedicated signals: HSLED (hot-swap LED control), HS_ENUM (hot-swap enumeration enable), and HSSWITCH/GPIO3 (slot presence detection). These interface with system-level hot-swap controllers to coordinate power ramping, bus isolation, and configuration space initialization. Section 3.14 and Figures 2−2/2−3 confirm physical pin placement and functional integration - no external logic is required for basic hot-swap compliance.

What arbitration schemes does the PCI2050BIPDV support on the secondary bus?

The PCI2050BIPDV supports internal two-tier arbitration for up to nine secondary bus masters, as documented in Section 1.1 and Section 3.6.2. It also provides interface signals (S_GNT[0:8], S_REQ[0:8]) to connect an external secondary bus arbiter, described in Section 3.6.3. Arbitration priority is programmable via the Arbiter Control Register (Section 5.3), and the bridge ensures fair access while preserving PCI Local Bus Specification timing constraints for grant/req handshaking.