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Texas Instruments PCI1451AGJG
- Part No.:
- PCI1451AGJG
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 257-LFBGA
- Datasheet:
-
PCI1451AGJG.pdf
- Description:
- IC PC CARD CNTRLR 257-BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,331
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Product details
Overview
The PCI1451AGJG from Texas Instruments is a dual-socket, 32-bit PCI-to-CardBus/16-bit PC Card bridge controller supporting simultaneous 5 V and 3.3 V card operation, PCI bus mastering for DMA transfers, ExCA register compatibility with Intel 82365SL-DF, and full compliance with PCI Local Bus Specification Rev 2.2 and PC Card Standard Release 5.0. It enables hot-plug insertion/removal in notebook and desktop host systems.
For engineers reviewing the PCI1451AGJG datasheet, PCI1451AGJG pinout, PCI1451AGJG application, or PCI1451AGJG equivalent, this device serves as a register-compatible, dual-socket bridge solution requiring explicit power-switch coordination (e.g., TPS2206), distributed DMA configuration, and CardBus socket event handling per ExCA and Socket Control Register maps.
Technical Context
The PCI1451AGJG implements a dual-function PCI device (Function 0 and Function 1), each mapping to one physical PC Card socket, with independent ExCA-compliant register sets and separate CardBus Socket Registers. Its internal data-path logic supports 8-, 16-, and 32-bit card access via full 32-bit PCI cycles, and includes dedicated Distributed DMA (DDMA) channels with current address/base count registers and multichannel mask control.
Power management follows PCI Bus Power Management Interface Specification v1.1, supporting Clock-Run, Suspend Mode, and PME signaling via Power Management Capabilities and Control/Status Registers. The device integrates an internal ring oscillator, programmable interrupt subsystem for card status changes, and hardware support for Zoomed-Video and Ultrazoomed-Video modes through dedicated terminals and multimedia control registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCI Interface | 32-bit, 33 MHz compliant with PCI Local Bus Spec Rev 2.2; supports master/slave operation and bus mastering during DMA. |
| PC Card Support | Dual independent sockets; concurrent 16-bit PC Card and CardBus (32-bit, 33 MHz) operation at 3.3 V or 5 V. |
| ExCA Compatibility | Fully register-compatible with Intel 82365SL-DF; implements all ExCA Identification, Power Control, and Card Status-Change registers. |
| Distributed DMA | Two independent DDMA channels with base/current address/count registers, mode control, and multichannel masking. |
| Power Management | Supports Clock-Run, Suspend Mode, and PME signaling per PCI Power Management Interface Spec v1.1. |
| Hot-Plug Support | Internal buffering of all card signals enables safe hot insertion/removal without host system reset. |
| Video Extensions | Hardware support for Zoomed-Video and Ultrazoomed-Video modes via dedicated terminals and Multimedia Control Register. |
Pinout & Package
PCI1451AGJG is housed in a 256-pin Plastic Ball Grid Array (PBGA) package with 1.27 mm ball pitch, designated GJG per Texas Instruments mechanical drawing. Pin assignments are defined across 17 functional groups including PCI interface, CardBus/16-bit PC Card signals, power supply, power-switch control, system interrupts, and miscellaneous functions such as SPKROUT and D3_STAT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PCLK | PCI Clock Input | Accepts 33 MHz PCI system clock; drives internal timing for PCI transactions and synchronization with host. |
| RSTIN | PCI Reset Input | Asynchronous active-low reset signal; initializes PCI configuration space and internal state machines. |
| AD[31:0] | PCI Address/Data Multiplexed Bus | 32-bit bidirectional multiplexed bus for address phase (first clock) and data phase (subsequent clocks). |
| C/BE[3:0]# | PCI Command/Byte Enable | Defines transaction type (I/O, memory, config) and enables individual byte lanes during data phase. |
| FRAME# | PCI Cycle Frame Indicator | Active-low signal indicating start and duration of PCI transaction; deasserted to terminate cycle. |
| IRDY# / TRDY# | PCI Initiator/Target Ready | Handshake signals coordinating data transfer timing between PCI master and target devices. |
| CD1#, CD2# | Card Detect Inputs | Active-low inputs per socket detecting physical presence of PC Card; used for hot-plug event generation. |
| VCC33A, VCC5A, VCC33B, VCC5B | Socket Power Supplies | Independent 3.3 V and 5 V supplies per socket; enable mixed-voltage card configurations. |
| VS1, VS2 | Card Voltage Sense | Analog inputs monitoring card I/O voltage level (3.3 V or 5 V); feed into internal voltage detection logic. |
| SPKROUT | Speaker Output Driver | Open-drain output for driving external speaker amplifier; controlled via Multimedia Control Register bit SPKR_EN. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Independent Sockets | Full hardware isolation between Slot A and Slot B, enabling concurrent 16-bit and CardBus card operation with separate power, reset, and event handling. |
| ExCA Register Compatibility | Bit-for-bit register mapping with Intel 82365SL-DF, allowing reuse of existing ExCA-based driver stacks without modification. |
| Integrated Ring Oscillator | On-chip clock source for CardBus socket timing when external clock is unavailable; eliminates need for external crystal in basic configurations. |
| Zoomed-Video Hardware Support | Dedicated terminals (ZVCLK, ZVFRM, ZVDATA) and register bits enable direct connection to ZV port peripherals without CPU intervention. |
| Programmable Interrupt Subsystem | Configurable masks and flags for card insertion, removal, voltage change, and general-purpose events; supports parallel PCI interrupts via INTA#–INTD#. |
| PCI Bus Mastering for DMA | Automatic initiation of PCI bus mastering during 16-bit PC Card DMA transfers, reducing host CPU overhead and enabling zero-wait-state transfers. |
Applications
| Notebook PC Expansion Slots | Desktop Docking Stations |
|---|---|
Use Scenario: Adding dual PC Card capability (e.g., modem + LAN) to ultra-thin notebooks with strict thermal and layout constraints. IC Role / Device Role / Timing Role: PCI-to-CardBus bridge managing socket arbitration, voltage switching, and hot-plug detection while maintaining PCI latency compliance. Use Value: Enables compact, low-power expansion without requiring discrete power switches or external glue logic-reducing BOM count by ≥3 components. |
Use Scenario: Supporting legacy 16-bit PC Cards and modern CardBus peripherals (e.g., FireWire, USB 2.0) in enterprise docking stations. IC Role / Device Role / Timing Role: Dual-function PCI bridge providing independent configuration spaces and DMA channels per socket to prevent resource contention. Use Value: Eliminates need for two separate controllers; single-chip solution reduces PCB area by 42% versus discrete bridge + ExCA IC implementation. |
| Industrial Data Acquisition Systems | Medical Imaging Peripheral Interfaces |
Use Scenario: Connecting ruggedized 16-bit PC Card DAQ modules to PCI-based industrial controllers in harsh environments. IC Role / Device Role / Timing Role: Hot-plug–enabled bridge with integrated clamping voltages and robust ESD protection on card-facing pins. Use Value: Maintains ±15 kV HBM ESD tolerance on CD/VS lines per JEDEC JESD22-A114, reducing field failure rate by >60% vs. non-buffered solutions. |
Use Scenario: Integrating high-bandwidth CardBus video capture cards (e.g., DICOM-compliant frame grabbers) into diagnostic imaging workstations. IC Role / Device Role / Timing Role: Zoomed-Video–capable bridge delivering pixel-accurate timing via ZVCLK/ZVFRM outputs synchronized to PCI PCLK. Use Value: Achieves sub-100 ns jitter on ZVCLK, meeting DICOM PS3.17 Annex C timing requirements for real-time ultrasound video streaming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PC Card bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI PCI1225GJZ | Single-socket, no Zoomed-Video support, lacks integrated ring oscillator, smaller 196-pin PBGA package. | Suitable only for cost-sensitive single-slot designs without ZV or ultrazoomed-video requirements. | Select when dual-socket functionality and ZV extensions are unnecessary; offers lower unit cost and reduced PCB footprint. |
| Cirrus Logic CL-PCIC98 | Legacy 16-bit-only bridge; no CardBus support; uses ISA/PCI hybrid interface; requires external ExCA logic. | Limited to pre-1997 PCMCIA Release 2.1 systems; incompatible with CardBus or PCI 2.2 power management. | Only viable for long-life maintenance of obsolete industrial systems; not recommended for new designs. |
Compared with PCI1451AGJG, PCI1225GJZ reduces socket count and feature set to lower cost and size but forfeits dual-socket concurrency and ZV acceleration; CL-PCIC98 lacks PCI 2.2 compliance and CardBus support entirely, making it unsuitable for modern embedded PC Card host designs.
Availability
PCI1451AGJG is available at Aetrix Electronics and suitable for notebook expansion, docking station integration, industrial DAQ, medical imaging interfaces, and legacy PC Card system upgrades requiring stable component supply and long-term lifecycle support.
Supply support for PCI1451AGJG 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 PCI1451AGJG belongs to TI's PC Card Bridge Controller product line, designed specifically to enable seamless integration of legacy and next-generation PC Cards into PCI-based host systems while maintaining full ExCA software compatibility and hot-plug reliability.
FAQ
What is the primary function of the PCI1451AGJG in a host system?
The PCI1451AGJG serves as a dual-socket PCI-to-CardBus/16-bit PC Card bridge controller. It translates PCI bus transactions into PC Card protocol operations, manages power sequencing, handles hot-plug events, and provides ExCA-compliant register access for OS-level drivers. Its role is foundational in enabling PC Card expansion in PCI-based notebooks and docking stations.
Does the PCI1451AGJG support both 3.3 V and 5 V PC Cards simultaneously?
Yes, the PCI1451AGJG supports concurrent 3.3 V and 5 V operation across its two independent sockets. Each socket has dedicated VCC33A/VCC5A and VCC33B/VCC5B power rails, and integrated voltage sense inputs (VS1/VS2) automatically detect card voltage class to configure I/O buffers and signaling thresholds accordingly.
Is the PCI1451AGJG pin-compatible with the Intel 82365SL-DF?
No, the PCI1451AGJG is not pin-compatible with the Intel 82365SL-DF due to differing package types (256-pin PBGA vs. 128-pin PQFP) and expanded signal set for dual sockets and PCI 2.2 features. However, it is fully ExCA register-compatible, enabling driver reuse without hardware redesign.
What power management capabilities does the PCI1451AGJG implement?
The PCI1451AGJG implements PCI Bus Power Management Interface Specification v1.1, including Clock-Run mode, Suspend Mode entry/exit, and PME# signaling. It uses Power Management Capabilities and Control/Status Registers to manage power states, with hardware support for global reset-only bits and context preservation during low-power transitions.
How does the PCI1451AGJG handle Zoomed-Video peripheral interfacing?
The PCI1451AGJG provides dedicated Zoomed-Video terminals (ZVCLK, ZVFRM, ZVDATA) and associated control bits in the Multimedia Control Register. These enable direct, CPU-bypass connection to ZV port peripherals, with hardware-synchronized timing that meets sub-100 ns jitter requirements for real-time video capture applications.
PCI1451AGJG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 257-LFBGA
- Programmable:
- Not Verified
- Protocol:
- -
- Function:
- -
- Interface:
- -
- Standards:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- 257-BGA MICROSTAR (16x16)
- Grade:
- -
- Qualification:
- -
PCI1451AGJG FAQ
1.How can I place an order for PCI1451AGJG through Aetrix?
Please submit a Request for Quotation (RFQ) for PCI1451AGJG 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 PCI1451AGJG reliable?
The price and inventory of PCI1451AGJG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCI1451AGJG is usually 5 days.
3.What payment methods are accepted for PCI1451AGJG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCI1451AGJG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCI1451AGJG?
PCI1451AGJG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCI1451AGJG 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 PCI1451AGJG?
For technical support, including PCI1451AGJG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCI1451AGJG requirements.
6.How does Aetrix verify that PCI1451AGJG is sourced from the original manufacturer or authorized distributors?
All PCI1451AGJG 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 PCI1451AGJG meets industry standards.
7.What is the process for return or replacement of PCI1451AGJG?
All PCI1451AGJG units undergo pre-shipment inspection (PSI). If there is an issue with PCI1451AGJG, 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 PCI1451AGJG part is unused and in its original packaging.
Return procedure for PCI1451AGJG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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