Texas Instruments PCI1520IGHKEP

Overview

PCI1520IGHKEP from Texas Instruments is a dual-slot PCI-to-CardBus bridge controller in 209-ball MicroStar BGA (GHK) package, implementing full 32-bit PCI-to-CardBus bridging with hot-swap support for two independent PC Card sockets. It operates with 2.5-V core logic and 3.3-V I/O, complies with PCI Local Bus Spec 2.2 and PCI Bus Power Management Interface Spec 1.1, and delivers >130 Mbps sustained throughput in both directions for notebook and desktop host systems.

For engineers reviewing the PCI1520IGHKEP datasheet, PCI1520IGHKEP pinout, PCI1520IGHKEP application, or PCI1520IGHKEP equivalent, this page provides verified technical context on CardBus socket register mapping, ExCA compatibility, PCI master/slave operation modes, integrated LDO-VR power management, and real-world hot-insertion timing behavior per Section 3.5.1 and Figure 3−15.

Technical Context

The PCI1520IGHKEP implements a pipelined, buffered data path supporting 8-/16-/32-bit card access via full 32-bit PCI cycles, enabling burst transfers and fast posted writes to maximize bus utilization. Its architecture includes dual-function PCI configuration space (Functions 0 and 1), ExCA-compliant register mapping in both memory and I/O space, and hardware-level support for PCI bus lock (LOCK), GRST, and CLKRUN protocols.

It integrates an internal ring oscillator, five general-purpose I/Os, programmable CLKRUN output select, and socket activity LED drivers. Power management includes Suspend Mode with RI_OUT signaling, ACPI 1.1 compliance, and dedicated registers for PME context bits and global reset-only control per Sections 3.8.5–3.8.11 and Table 3−14.

Key Specifications

Pinout & Package

PCI1520IGHKEP is housed in a 209-ball MicroStar BGA (GHK) package, with ball pitch of 1.0 mm and body size of 15 mm × 15 mm (Figure 2−1, Section 8). Terminal functions are defined per Table 2−2 (Signal Names by GHK Terminal Number).

Key Features

Applications

Equivalent & Alternatives

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

Compared with PCI1520IGHKEP, the PCI1510IGHKEP reduces socket count and feature set for cost-sensitive single-card applications, while the Intel 82365SL-DF demands external power regulation and offers no native zoomed-video or programmable CLKRUN capability - making PCI1520IGHKEP the only option supporting dual hot-swap sockets with integrated power and ZV timing in a single GHK package.

Availability

PCI1520IGHKEP is available at Aetrix Electronics and suitable for notebook docking stations, industrial PCMCIA data acquisition hubs, and legacy medical imaging terminals requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for PCI1520IGHKEP 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 PCI and PC Card interface solutions.

The PCI1520IGHKEP belongs to TI's PC Card Bridge Controller product line, engineered specifically for low-power, dual-socket CardBus expansion in space-constrained mobile and industrial platforms where hot-swap reliability and ExCA register compatibility are mandatory.

FAQ

What is the package type and ball count for PCI1520IGHKEP?

The PCI1520IGHKEP uses a 209-ball MicroStar BGA (GHK) package with 1.0-mm pitch and 15 mm × 15 mm body size. This is confirmed in the Ordering Information table (Section 1.5) and mechanical drawings (Figure 2−1, Section 8). The GHK package differs from the PDV QFP variant by terminal count and mounting method, and PCI1520IGHKEP is exclusively offered in GHK.

Does PCI1520IGHKEP require an external 2.5-V power supply?

No. The PCI1520IGHKEP integrates a low-dropout voltage regulator (LDO-VR) that generates its 2.5-V core supply from the 3.3-V I/O rail (VCC_IO), eliminating the need for an external 2.5-V regulator. This is explicitly stated in Section 1.2 Features and Section 3.8.1, and confirmed by the VCC_CORE pin description in Table 2−2.

Is PCI1520IGHKEP compatible with Intel 82365SL-DF software drivers?

Yes. The PCI1520IGHKEP is register-compatible with the Intel 82365SL-DF and 82365SL ExCA controllers, meaning existing ExCA-based drivers can operate without modification. This is documented in Section 1.1 and reinforced by identical register offsets and bit-field definitions across Sections 4–6 and Tables 4−1 through 6−7.

What hot-swap protections does PCI1520IGHKEP provide?

The PCI1520IGHKEP provides internal buffering on all card signals to enable safe hot insertion and removal without external components. Clamping voltages meet IEC 61000-4-2 ESD requirements, and power sequencing is managed via integrated LDO-VR and ExCA Power Control Registers (Sections 3.1, 3.3, and 3.5.1). No external TVS or buffer ICs are required.

Does PCI1520IGHKEP support zoomed video (ZV) functionality?

Yes. The PCI1520IGHKEP implements the standardized Zoomed-Video register model (Section 3.5.4) and provides dedicated ZV_OUTPUT signals (SPKROUT, CAUDPWM) with timing controlled by its internal ring oscillator (Sections 3.5.3, 3.5.5, and Figure 3−6). This enables direct connection to ZV-capable cameras without additional timing circuitry.