Texas Instruments PCI1510ZWS

Overview

PCI1510ZWS from Texas Instruments is a single-slot PCI-to-CardBus bridge controller supporting both 16-bit PC Cards and 32-bit CardBus cards at 3.3 V or 5 V, compliant with PC Card Standard Rev. 7.2 and PCI Local Bus Spec Rev. 2.2. It features 2.5-V core logic, integrated LDO-VR, pipelined architecture enabling >130 Mbps throughput, and hot-swap support via internal buffering.

For engineers reviewing the PCI1510ZWS datasheet, PCI1510ZWS pinout, PCI1510ZWS application, or PCI1510ZWS equivalent, key selection considerations include ExCA register compatibility with Intel 82365SL-DF/SL, dual interrupt signaling (parallel/serialized PCI & ISA), TPS2211A power-switch interface, and support for five general-purpose I/Os in a 144-pin low-profile QFP (PGE) package.

Technical Context

The PCI1510ZWS implements a full PCI-to-CardBus bridge with register-level ExCA compatibility, enabling seamless integration into legacy PCMCIA subsystems. Its internal data path supports 8-, 16-, and 32-bit card access using native 32-bit PCI cycles, while independent buffering and pipeline staging eliminate wait states during burst transfers.

Power management is implemented via compliance with PCI Bus Power Management Interface Spec Rev. 1.1 and ACPI 1.1, including Suspend Mode, CLKRUN protocol, ring-indicate (RI_OUT), and PME-capable control/status registers. The integrated LDO-VR supplies regulated 2.5 V to core logic, eliminating external regulation for the core supply.

Key Specifications

Pinout & Package

PCI1510ZWS is housed in a 144-pin low-profile quad flat pack (PGE package), with signal assignments defined across PCI, CardBus, 16-bit PC Card, power, and control domains. Terminal mapping is fully documented in Tables 2−1 (PGE), 2−2 (GGU), and 2−3 (GVF), with PGE-specific pinout shown in Figure 2−3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Intel 82365SL-DF, PCI1510ZWS reduces system BOM by integrating LDO-VR and hot-swap buffers, while delivering higher throughput and richer power management-making it superior for new designs targeting lower cost, smaller footprint, and extended battery life.

Availability

PCI1510ZWS is available at Aetrix Electronics and suitable for mobile notebook expansion, industrial PCMCIA host adapters, embedded telephony gateways, and medical diagnostic peripheral hubs requiring stable component supply and long-term lifecycle support.

Supply support for PCI1510ZWS 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 specializing in analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.

The PCI1510ZWS belongs to TI's Connectivity Solutions portfolio, designed specifically to enable robust, low-power, standards-compliant PC Card and CardBus expansion in space-constrained portable and embedded systems.

FAQ

What is the primary function of the PCI1510ZWS?

The PCI1510ZWS is a PCI-to-CardBus bridge controller that enables host systems to interface with both 16-bit PC Cards and 32-bit CardBus cards. It handles protocol translation, voltage adaptation, hot-swap arbitration, and ExCA register mapping-allowing seamless integration into systems compliant with PC Card Standard Rev. 7.2 and PCI Local Bus Spec Rev. 2.2. The PCI1510ZWS delivers this functionality in a 144-pin QFP package with integrated 2.5-V LDO regulation.

Does the PCI1510ZWS require an external 2.5-V power supply?

No. The PCI1510ZWS integrates a low-dropout voltage regulator (LDO-VR) that generates its 2.5-V core supply from the 3.3-V I/O rail. This eliminates the need for an external 2.5-V source, reducing BOM count and PCB routing complexity. The LDO-VR is specified in Section 3.8.1 and Table 3−10 of the SCPS071E datasheet, and its operation is validated across the full recommended operating temperature range.

Is the PCI1510ZWS pin-compatible with the Intel 82365SL-DF?

The PCI1510ZWS is register-compatible-not pin-compatible-with the Intel 82365SL-DF. While both devices implement identical ExCA register maps and support the same software stack, their pinouts differ: the 82365SL-DF uses a 128-pin PQFP, whereas the PCI1510ZWS uses a 144-pin PGE package with additional signals including CLKRUN#, RI_OUT, and dedicated LED outputs. Hardware redesign is required for migration.

What power management features does the PCI1510ZWS support?

The PCI1510ZWS supports Suspend Mode, CLKRUN protocol, ring-indicate (RI_OUT), and PCI Power Management Events (PME). It complies with PCI Bus Power Management Interface Spec Rev. 1.1 and ACPI 1.1, implementing hardware-controlled entry/exit from low-power states. Key registers include Power-Management Control/Status (Section 4.38), General-Purpose Event Status (Section 4.41), and Socket Power-Management Register (Section 6.6).

Can the PCI1510ZWS support both 3.3-V and 5-V PC Cards simultaneously?

Yes. The PCI1510ZWS supports mix-and-match operation of 5-V and 3.3-V 16-bit PC Cards alongside 3.3-V CardBus cards. Its internal voltage-sense circuitry (described in Section 3.5.1 and Table 3−1) detects card voltage class during insertion and configures I/O buffers accordingly. This capability is enabled without external level shifters and is validated across the full operating temperature range per Section 7.2.