Texas Instruments PCI1450GFN
- Part No.:
- PCI1450GFN
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 256-BGA
- Datasheet:
-
PCI1450GFN.pdf
- Description:
- IC PC CARD CNTRLR 256-BGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
The PCI1450GFN from Texas Instruments is a dual-socket PC Card controller bridging 32-bit PCI to 16-bit PC Card and 32-bit CardBus interfaces. It supports hot insertion/removal, 132 MB/s burst transfers, Zoomed Video (ZV) path with internal buffering, and full ACPI 1.0/PCI 2.1/2.2/PC 98–99 compliance - deployed in notebook docking stations and legacy industrial expansion systems.
For engineers reviewing the PCI1450GFN datasheet, PCI1450GFN pinout, PCI1450GFN application, or PCI1450GFN equivalent, key selection factors include its dual-socket register compatibility with Intel 82365SL-DF, ExCA-compliant memory/I/O window mapping, programmable interrupt routing (8 IRQMUX + 4 GPIO), ZV signal routing capability, and support for mixed 3.3-V/5-V card environments.
Technical Context
The PCI1450GFN implements a PCI-to-CardBus bridge with two independent socket controllers, each supporting separate configuration space and ExCA-compatible register sets mapped in memory or I/O space. Its pipeline architecture enables sustained bursting across both PCI and CardBus buses, with distributed DMA (DDMA) and PC/PCI DMA coexistence.
It integrates a dedicated Zoomed Video interface (23-pin ZV bus), internal ring oscillator for power switch control, and programmable interrupt subsystem supporting four modes: Serial ISA/Serial PCI, Serial ISA/Parallel PCI, Parallel ISA/Parallel PCI, and Parallel PCI Only - all configurable via system control and device control registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCI Interface | 32-bit, 33 MHz compliant with PCI Local Bus Spec Rev 2.1/2.2; supports master/slave operation and LOCK protocol |
| Card Support | Dual independent sockets: 16-bit PC Card (PCMCIA 2.1) and 32-bit CardBus; mix-and-match 3.3-V/5-V cards |
| Data Throughput | 132 MB/s burst transfer rate on both PCI and CardBus buses via pipelined data-path logic |
| Zoomed Video | Internally buffered ZV path with dedicated 23-pin interface (Y/U/V, HREF, VSYNC, PCLK, SCLK, LRCLK, SDATA) |
| Power Management | ACPI 1.0 & PCI Power Management Spec 1.0 compliant; supports D0–D3 states including PME wake from D3cold |
| Interrupt Architecture | 8 IRQMUX outputs (IRQMUX0–7), 4 GPIOs, serial/parallel ISA/PCI interrupt modes, and serialized IRQ support |
| Memory/I/O Windows | 5 PCI memory + 2 I/O windows per PC Card socket; 2 memory + 2 I/O windows per CardBus socket |
Pinout & Package
Packaged in a 256-pin BGA (GFN package variant). Pin assignments follow TI SCPS044 datasheet Table 1 for GFN terminals, with dedicated signal groups: PCI bus (AD31–AD0, C/BE3–C/BE0, FRAME, IRDY, TRDY), CardBus A/B (B_CADxx/A_CADxx, B_CVS1/2, B_CCD1/2), Zoomed Video (ZV_Yx, ZV_UVx, ZV_HREF, ZV_VSYNC), and system control (CLKRUN, PRST, G_RST, GPIO0–3, IRQMUX0–7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AD31–AD0 | PCI Address/Data Bus | Multiplexed 32-bit address/data lines; sampled on rising edge of PCLK; used for configuration, memory, and I/O cycles |
| C/BE3–C/BE0 | PCI Command/Byte Enable | Define bus command during address phase; act as byte enables (BE0–BE3) during data phase for 32-bit transfers |
| ZV_Y0–ZV_Y7, ZV_UV0–ZV_UV7 | Zoomed Video Data | 8-bit Y luminance + 8-bit UV chrominance bus; routed separately from CardBus signals to VGA controller |
| IRQMUX0–IRQMUX7 | Programmable Interrupt Output | Configurable ISA IRQ outputs (mapped to IRQ3–IRQ15); secondary functions include INTB, RI_OUT, PME, DMA grant |
| GPIO0–GPIO3 | General-Purpose I/O | Four multifunction pins; default as inputs; configurable as LED drivers (LEDA1/LEDA2), LOCK, or sideband control signals |
Key Features
| Feature | Design Value |
|---|---|
| ExCA Register Compatibility | Fully maps ExCA registers into memory or I/O space - enabling seamless integration with legacy PC Card OS drivers without firmware modification |
| Hot Insertion/Removal | All card signals internally buffered with 90 µs noise immunity on card detect lines - eliminates external protection circuitry and enables true plug-and-play operation |
| Zoomed Video Integration | Dedicated ZV path with internal buffering guarantees CardBus loading compliance and reduces PCB layout complexity for video capture add-in cards |
| Flexible Interrupt Routing | 8 IRQMUX outputs + 4 GPIOs support multiple interrupt topologies - allowing OEMs to match host chipset requirements without hardware redesign |
| Power Switch Interface | 3-line serial interface (CLOCK/DATA/LATCH) to TI TPS2206 dual power switch - simplifies dual-socket power sequencing and reduces BOM count |
Applications
| Industrial Data Acquisition Module | Notebook Docking Station |
|---|---|
Use Scenario: Modular field instrument with interchangeable PC Card-based analog input, counter/timer, and CAN modules. IC Role / Device Role / Timing Role: PCI1450GFN acts as the primary bridge between host CPU's PCI bus and hot-pluggable sensor interface cards; manages socket power, card detection, and DMA transfers. Use Value: Enables real-time acquisition at 132 MB/s burst rate while maintaining PC 98/99 compliance for certified industrial deployment. | Use Scenario: High-density laptop docking solution supporting simultaneous 16-bit modem, 32-bit Ethernet, and Zoomed Video capture cards. IC Role / Device Role / Timing Role: PCI1450GFN provides dual-socket arbitration, ZV signal routing to integrated graphics, and serialized IRQ handling for multi-card interrupt coalescing. Use Value: Eliminates need for discrete ZV buffer ICs and reduces interrupt latency via 8-way IRQMUX programmability. |
| Legacy System Upgrade Adapter | Medical Imaging Peripheral |
Use Scenario: PCI add-in card adding PC Card expansion to aging desktop workstations running DOS/Windows 98. IC Role / Device Role / Timing Role: PCI1450GFN serves as register-compatible drop-in replacement for Intel 82365SL-DF - preserving driver stack and BIOS initialization flow. Use Value: Maintains full ExCA register mapping and 16-bit DMA support required by legacy diagnostic software stacks. | Use Scenario: Portable ultrasound unit using CardBus-based image processing accelerator and PC Card-based audio codec. IC Role / Device Role / Timing Role: PCI1450GFN bridges PCI host to dual high-bandwidth peripherals: ZV path feeds real-time video to FPGA preprocessor; CardBus socket handles audio streaming via TI TPS2206-controlled power rails. Use Value: Achieves synchronized audio/video capture with <90 µs card-detect noise immunity critical for clinical reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PC Card controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCI1225GJG | Single-socket implementation; no Zoomed Video interface; reduced I/O window count (3 memory + 1 I/O per socket) | Suitable only for non-video, single-card embedded applications; lacks ZV signal routing and IRQMUX flexibility | Select when cost and board space constrain require minimal feature set and no video support is needed. |
| PCI1420GFN | Same 256-pin BGA package; supports dual sockets and ZV but omits PC/PCI DMA and 8-way IRQMUX; limited to 4 interrupt modes | Targeted at simpler docking solutions without distributed DMA or advanced interrupt coalescing requirements | Choose when system does not require PC/PCI DMA or fine-grained IRQ routing - reduces software complexity. |
Compared with PCI1225GJG and PCI1420GFN, the PCI1450GFN uniquely delivers full dual-socket ExCA compliance, integrated ZV buffering, 8 IRQMUX outputs, and PC/PCI DMA - making it the only option for high-end docking stations requiring synchronized video/audio capture and legacy driver compatibility.
Availability
PCI1450GFN is available at Aetrix Electronics and suitable for industrial data acquisition modules, notebook docking stations, legacy system upgrade adapters, and medical imaging peripherals requiring stable component supply and long-term obsolescence management.
Supply support for PCI1450GFN 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, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and communications markets.
The PCI1450GFN belongs to TI's PC Card Bridge product line, designed specifically to enable seamless migration from legacy ISA/PCMCIA systems to PCI-based platforms while preserving driver compatibility and supporting mixed-voltage CardBus expansion.
FAQ
What is the primary function of the PCI1450GFN in a system architecture?
The PCI1450GFN serves as a PCI-to-CardBus bridge IC, enabling host systems with a 32-bit PCI bus to interface with up to two hot-pluggable PC Card or CardBus peripherals. It handles address decoding, DMA arbitration, interrupt multiplexing, and power management - all while maintaining ExCA register compatibility with legacy PC Card drivers. The PCI1450GFN is essential for notebook docking stations and industrial expansion cards requiring mixed 16-/32-bit card support.
Does the PCI1450GFN support Zoomed Video functionality, and how is it implemented?
Yes, the PCI1450GFN provides an internally buffered Zoomed Video (ZV) path with dedicated signal routing (ZV_Y0–Y7, ZV_UV0–UV7, ZV_HREF, ZV_VSYNC, ZV_PCLK, ZV_SCLK, ZV_LRCLK, ZV_SDATA). This 23-pin ZV interface connects directly to VGA controllers without external buffers, guaranteeing CardBus loading compliance and reducing PCB design effort. The ZV path operates independently from CardBus data transfers, enabling concurrent video capture and peripheral I/O.
How many interrupt routing options does the PCI1450GFN provide, and what are they?
The PCI1450GFN supports four distinct interrupt signaling modes: Serial ISA/Serial PCI, Serial ISA/Parallel PCI, Parallel ISA/Parallel PCI, and Parallel PCI Only. It includes eight programmable IRQMUX outputs (IRQMUX0–7) that can be mapped to any of 15 ISA IRQ lines, plus four general-purpose I/O pins (GPIO0–3) usable as interrupt sources or LED drivers. This flexibility allows the PCI1450GFN to adapt to diverse host chipset interrupt architectures without hardware changes.
Is the PCI1450GFN compatible with Intel 82365SL-DF, and what does that mean for system design?
Yes, the PCI1450GFN is register-compatible with the Intel 82365SL-DF ExCA controller. This means existing BIOS initialization code, OS drivers, and application software written for the 82365SL-DF will operate without modification when the PCI1450GFN is substituted. The compatibility extends to configuration space layout, ExCA register offsets, and socket control semantics - significantly reducing qualification time for legacy system upgrades and drop-in replacements.
What power supply configurations does the PCI1450GFN support for mixed-voltage PC Card operation?
The PCI1450GFN supports mixed 3.3-V and 5-V PC Card environments through dedicated clamp voltage supplies: VCCA and VCCB for Card A and B signaling levels, VCCP for PCI interface (3.3-V or 5-V), and VCCZ for Zoomed Video (3.3-V or 5-V). This allows simultaneous operation of 16-bit 5-V cards and 32-bit 3.3-V CardBus cards in either socket - with automatic voltage detection and isolation managed by the PCI1450GFN's internal logic and external TPS2206 power switches.
PCI1450GFN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 256-BGA
- Programmable:
- Not Verified
- Protocol:
- -
- Function:
- -
- Interface:
- -
- Standards:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- 256-BGA (27x27)
- Grade:
- -
- Qualification:
- -
PCI1450GFN FAQ
1.How can I place an order for PCI1450GFN through Aetrix?
Please submit a Request for Quotation (RFQ) for PCI1450GFN on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PCI1450GFN reliable?
The price and inventory of PCI1450GFN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCI1450GFN is usually 5 days.
3.What payment methods are accepted for PCI1450GFN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCI1450GFN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCI1450GFN?
PCI1450GFN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCI1450GFN order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PCI1450GFN?
For technical support, including PCI1450GFN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCI1450GFN requirements.
6.How does Aetrix verify that PCI1450GFN is sourced from the original manufacturer or authorized distributors?
All PCI1450GFN products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PCI1450GFN meets industry standards.
7.What is the process for return or replacement of PCI1450GFN?
All PCI1450GFN units undergo pre-shipment inspection (PSI). If there is an issue with PCI1450GFN, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PCI1450GFN part is unused and in its original packaging.
Return procedure for PCI1450GFN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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