PCI4451GJG - Integrated PC Card & 1394 OHCI Controller | TI
MPN: PCI4451GJG ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $14.35 | $1,435.00 |
| 500 | $12.9 | $6,450.00 |
| 1,000 | $11.55 | $11,550.00 |
PCI4451GJG Overview
Key features include PCI 2.2 host-side compliance, integrated 1394 OHCI 1.1 controller with cable power management, support for Zoom Video (ZV) port, ACPI 1.0 compliant power management with D0/D1/D2/D3 states and PME#, and programmable CardBus signal voltage (3.3 V / 5 V / VPP). The integrated PHY removes the need for an external 1394 link-layer chip, reducing both BOM count and PCB area versus two-chip implementations.
Technically, the PCI4451 uses a single 33 MHz, 32-bit PCI bus to bridge the host CPU to two PC Card sockets and one 1394 port. Internal DMA engines handle PC Card data movement with scatter-gather support, while a dedicated 1394 PHY implements bus-reset, arbitration, and cable-not-active detection per IEEE 1394a-2000. CardBus card insertion/removal is managed by per-socket card detect and voltage sense pins that feed the integrated socket controller.
Typical applications include legacy industrial PCs, test and measurement chassis with PC Card (PCMCIA) data acquisition modules, docking stations, embedded military/aerospace single-board computers, and add-in Combo cards (CardBus + 1394a) for legacy Windows XP / Windows 2000 platforms where both buses remain in active service for instrumentation capture.
When designing, observe the 257-ball BGA escape pattern: route CardBus data, address and control signals on the outer two rows of balls and place the 1394 cable port traces near the package edge to minimize stub length. A 27 MHz crystal with the on-chip PLL provides the 1394 PHY clock; follow TI's reference layout for the PHY section to remain IEEE 1394a compliant.
This page synthesizes distributor pricing, exact-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PCI4451GJG — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PCI4451GJG is the original part in this position
✅ Drop-In📋 Reference alternative (not in catalog)
PCI1520GJG
✅ Drop-In📋 Reference alternative (not in catalog)
PCI4410GJG
✅ Drop-In📋 Reference alternative (not in catalog)
PCI1420GJG
✅ Drop-In📋 Reference alternative (not in catalog)
PCI4520GJG
✅ Drop-In📋 Reference alternative (not in catalog)
PCI4530GJG
✅ Drop-In📋 Reference alternative (not in catalog)
PCI4451GJG Specifications
| Function | Integrated PC Card controller + 1394 OHCI controller |
| Host Interface | PCI 2.2, 32-bit, 33 MHz |
| PC Card Slots | 2 (independent, hot-swappable) |
| PC Card Standard | 1997 PC Card Standard (CardBus / 16-bit PCMCIA) |
| 1394 PHY | IEEE 1394a-2000, 100/200/400 Mbps, 1 cable port |
| 1394 OHCI | OHCI 1.1 compliant link layer (integrated) |
| Package | 257-ball MicroStar BGA (GJG), 16x16 mm |
| Mounting Type | Surface Mount (BGA) |
| Operating Voltage (Core) | 3.3 V |
| PC Card VCC | 3.3 V / 5 V programmable |
| PC Card VPP | Programmable 0 V / 3.3 V / 5 V / 12 V |
| Power Management | ACPI 1.0 compliant, D0/D1/D2/D3, PME# |
| Operating Temperature | 0C to +70C (commercial) |
| RoHS Status | Compliant (lead-free GJG package) |
| MSL Level | 3 (per JEDEC J-STD-020) |
| Per-Slot Card Detect | Yes (CD1#, CD2#, VS1#, VS2#) |
| ZV (Zoom Video) Support | Yes |
PCI4451GJG 257-ball microstar bga (gjg), 16x16 mm Pin Configuration Guide
Pin configuration for PCI4451GJG (257-ball microstar bga (gjg), 16x16 mm package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for PCI4451GJG.
Refer to the datasheet for full pin configuration.
Typical Applications
PCI4451GJG is suitable for 6 applications: Legacy Industrial PC Add-In Card, Test and Measurement Chassis, Docking Station with CardBus + 1394, Embedded Single-Board Computer (VME / VPX), Video Capture / Streaming Card (PC + Mac Era), Industrial Fieldbus Bridge.
Legacy Industrial PC Add-In Card
The PCI4451GJG serves as the host-side bridge in legacy industrial PCs and PCI backplane cards where both PC Card (CardBus / 16-bit PCMCIA) and IEEE 1394a I/O are still mandated by installed data acquisition modules. Its dual-slot CardBus bridge supports hot-swap PCMCIA cards (e.g., industrial GPS, GSM/GPRS modems, fiber-optic serial adapters) while the integrated 400 Mbps 1394 port links to IEEE 1394 cameras and instrument clusters. Using a single PCI device for both buses reduces the BOM by one chip versus a discrete CardBus + 1394 link design and frees a PCI slot on the backplane for additional functionality.
Recommended
Test and Measurement Chassis
Bench-top T&M chassis and portable oscilloscope/logic analyzer front-ends use the PCI4451GJG to expose a CardBus slot for PCMCIA-based data acquisition modules and a 1394a port for IEEE 1394 interconnects to remote probes. The integrated OHCI 1.1 link layer offloads isochronous and asynchronous 1394 traffic from the host CPU, which is critical when capturing continuous 400 Mbps streams. The 257-ball BGA fits a CompactPCI or ATX add-in card form factor without sacrificing trace routing for the 1394 cable port pair.
Recommended
Docking Station with CardBus + 1394
Notebook docking stations historically exposed PC Card and 1394 to legacy peripherals via the PCI4451GJG. Its dual-slot CardBus bridge accepts two PCMCIA peripherals (e.g., parallel-port emulator, Ethernet PC Card, Wi-Fi client adapter) while the integrated 1394 OHCI port powers external FireWire enclosures for storage or video capture. ACPI 1.0 compliance (D0-D3 with PME#) makes the part a good fit for docking stations that must wake on insertion of a peripheral.
Recommended
Embedded Single-Board Computer (VME / VPX)
VME and VPX single-board computers targeting military, aerospace, and transportation embedded platforms frequently retain PC Card slots for legacy mission-loader peripherals and a 1394 port for avionics data loaders. The PCI4451GJG fits the PCI mezzanine region of these boards; its 16x16 mm BGA footprint leaves room for the VME P1/P2 connector geometry. The integrated 1394 PHY eliminates an external link chip, simplifying the conformal-coated assembly often required for embedded MIL applications.
Recommended
Video Capture / Streaming Card (PC + Mac Era)
Pre-USB 3.0 video capture cards for desktop video editing used the PCI4451GJG to provide a CardBus path to portable storage media and a 1394a port for DV camcorder ingest. The integrated 1394 OHCI supports isochronous transfers required for DV25/DV50 streams at 25-50 Mbps, while the CardBus path handles CompactFlash readers via PCMCIA adapters. The ZV (Zoom Video) port support allows overlay video routing from the PC Card to the host graphics controller.
Recommended
Industrial Fieldbus Bridge
Factory-floor protocol bridges and PLC communication modules use the PCI4451GJG to translate between a backplane PCI bus and field-replaceable PC Card modules (Profibus, DeviceNet, CANopen adapters) while exposing a 1394 port for handheld programmer tablets. ACPI 1.0 power management with PME# enables wake-on-field-event behavior, important for energy-saving factory shutdown. The 3.3 V core and programmable socket voltages (3.3/5 V VCC, 0/3.3/5/12 V VPP) cover the wide range of PC Card-based industrial adapters.
Recommended
Recommended Products Summary
Engineering reference data for PCI4451GJG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PCI1520GJG | PCI4410GJG | PCI1420GJG | PCI4520GJG | PCI4530GJG |
|---|---|---|---|---|---|---|
| Package | 257-ball MicroStar BGA (GJG), 16x16 mm | 257-ball MicroStar BGA (GJG), 16x16 mm | 257-ball MicroStar BGA (GJG), 16x16 mm | 257-ball MicroStar BGA (GJG), 16x16 mm | 257-ball MicroStar BGA (GJG), 16x16 mm | 257-ball MicroStar BGA (GJG), 16x16 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| CardBus Slots | 2 | 2 | 1 | 2 (16-bit only) | 2 | 2 |
| 1394 OHCI Support | Integrated, OHCI 1.1, 1 port @ 400 Mbps | None | None | None | Integrated, OHCI 1.1, 1 port @ 400 Mbps | Integrated, OHCI 1.1, 1 port @ 400 Mbps |
| Host Interface | PCI 2.2, 32-bit, 33 MHz | PCI 2.2, 32-bit, 33 MHz | PCI 2.2, 32-bit, 33 MHz | PCI 2.1, 32-bit, 33 MHz | PCI 2.2, 32-bit, 33 MHz | PCI 2.2, 32-bit, 33 MHz |
| ACPI Power Management | ACPI 1.0, D0-D3, PME# | ACPI 1.0, D0-D3, PME# | ACPI 1.0, D0-D3, PME# | ACPI 1.0, D0-D3, PME# | ACPI 1.0, D0-D3, PME# | ACPI 1.0, D0-D3, PME# |
| SD / MMC Host | No | No | No | No | No | Yes |
| Lifecycle Status | NRND | NRND | NRND | Obsolete | NRND | NRND |
Key Differentiators
- Integrated 1394 OHCI + dual CardBus in a single PCI device (vs PCI1520GJG)
- Two CardBus slots, not one (vs PCI4410GJG)
- CardBus 32-bit PCI bridging, not legacy 16-bit only (vs PCI1420GJG)
- ZV (Zoom Video) port support (vs PCI1520GJG)
Design Notes
Route the CardBus data (CAD[31:0]), address (CCA[31:0]) and control (CCFRAME#, CCTRDY#, CCDEVSEL#, CCSTOP#, CCIRDY#) signals on the outer two rows of the 257-ball GJG BGA to avoid via stubs. The integrated 1394 PHY cable-port pair (TPA, TPB) and the 1394 bias network must be routed to the package edge with the 27 MHz crystal within 5 mm of the PHY_XTAL1/PHY_XTAL2 balls to remain IEEE 1394a compliant.
Estimated: At 3.3 V core with both CardBus slots active and 1394 link transmitting, the PCI4451GJG draws approximately 230 mA (760 mW). Programmable socket power for two slots (5 V VCC @ 500 mA and 12 V VPP @ 100 mA per slot) adds 5.5 W typical per slot. Provide local 0.1 uF + 10 uF ceramic decoupling per power pin, and a 100 uF bulk cap near the VCC5 supply for PC Card hot-plug inrush.
The 257-ball MicroStar BGA (GJG) has a theta_JA of approximately 24 C/W on a 4-layer JEDEC test board. At the typical 1.5 W operating dissipation, the junction-to-ambient rise is approximately 36 C, leaving 39 C of headroom below the 125 C junction limit. For enclosed chassis, place a copper pour beneath the package to spread heat and consider forced airflow if socket power stays at 5 V/500 mA continuously.
Do not omit the 1394 PHY external termination (1394 cable-port 110-ohm common-mode choke plus 250 kohm bias network); without it the link layer will fail bus-reset and self-ID loops. Also, the SUSPEND/PCI_PME# handshake must be sequenced per ACPI 1.0 - leaving the part in D3 with PME# floating causes phantom wake events on Windows XP / 2000.
CardBus runs at 33 MHz with 32-bit data; keep the CAD[31:0] bus length-matched within 0.5 inches, with series 33 ohm damping resistors near the controller balls. The 1394 differential pair must be 100-ohm differential, with no more than two vias between the controller and the 1394 connector.
Compliance Information
RoHS and lead-free compliance confirmed by the GJG package suffix. AEC-Q100 not applicable (commercial-grade PC). REACH and conflict-minerals declarations per TI product environmental compliance program.
