PCI2250 Texas Instruments Integrated Circuit (Quad Flat Packages) In Stock
Texas Instruments PCI2250 is a PCI-to-CardBus bridge controller IC supporting two independent CardBus slots with 33MHz PCI bus interface and 3.3V or 5V card voltage control in a Quad Flat Package. It enables laptop and embedded systems to expand connectivity via PCMCIA/CardBus peripherals. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat Packages
- Pin Count
- 160
- Lifecycle
- ACTIVE
- Datasheet
- PCI2250 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PCI2250?
- Dual independent CardBus slot support on a single 33MHz PCI bus interface, doubling peripheral expansion capacity
- Integrated 3.3V and 5V card power switching with hot-insertion protection for reliable PCMCIA/CardBus card management
- Quad Flat Package SMT form factor with full PCI 2.2 compliance simplifying certification for embedded and mobile platform designs
What is PCI2250 used for?
The PCI2250 is used in laptop computers, industrial single-board computers, and embedded systems that require dual CardBus slot expansion for modem, NIC, storage, or wireless cards. Its dual-slot architecture allows simultaneous operation of 2 CardBus peripherals on a shared PCI bus, making it suitable for modular field instruments and portable test equipment that need hot-swappable I/O expansion.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the PCI2250 datasheet?
PCI2250 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PCI2250?
Compatible alternatives and drop-in replacements for PCI2250:
Frequently Asked Questions
How many CardBus slots does the PCI2250 support and at what PCI bus frequency does it operate?
The PCI2250 supports 2 independent CardBus slots and operates on a 33MHz PCI bus, compliant with the PCI 2.2 and CardBus specifications. This allows two separate CardBus cards, such as a NIC and a modem, to be active simultaneously on a single PCI bus segment without requiring additional bridge chips.
Which card voltage levels does the PCI2250 manage for CardBus and legacy PCMCIA cards?
The PCI2250 controls both 3.3V and 5V card power rails, supporting modern CardBus cards at 3.3V and legacy 16-bit PCMCIA cards at 5V. Integrated power switching circuits handle card insertion and removal with hot-swap protection, reducing the need for external MOSFETs or discrete power management components on the expansion slot board.
When should a designer choose PCI2250 over a single-slot CardBus bridge for embedded platform designs?
PCI2250 is the right choice when the embedded platform needs 2 simultaneous CardBus expansion slots from a single PCI bus resource, such as in industrial PCs needing concurrent serial, NIC, and wireless cards. Using a dual-slot bridge like PCI2250 instead of 2 single-slot bridges saves 1 PCI slot, reduces PCB area by approximately 30%, and simplifies power management firmware.
What package does the PCI2250 use and how does it affect PCB routing for high-density board layouts?
The PCI2250 is packaged in a Quad Flat Package (QFP) with fine-pitch leads, enabling close component placement on dense multilayer PCBs. QFP packages allow controlled impedance routing for the 33MHz PCI bus signals on inner layers, and the perimeter pin arrangement simplifies breakout to the PCI connector traces compared to BGA packages in board layouts where signal integrity at 33MHz must be maintained under 200ps rise time constraints.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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