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Texas Instruments TSB12LV26IPZT
- Part No.:
- TSB12LV26IPZT
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 100-TQFP
- Datasheet:
-
TSB12LV26IPZT.pdf
- Description:
- IC IEEE 1394 HOST CNTRLR 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,870
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Product details
Overview
TSB12LV26IPZT from Texas Instruments is a PCI-based IEEE 1394 (FireWire) host controller IC implementing OHCI-Lynx™ architecture. It provides full link-layer functionality for 100/200/400 Mbits/s serial bus data rates, supports 3.3-V PCI signaling with internal 1.8-V core regulation, and features deep FIFOs and physical write posting buffers for high-throughput SBP-2 storage applications in desktop PCs.
For engineers reviewing the TSB12LV26IPZT datasheet, TSB12LV26IPZT pinout, TSB12LV26IPZT application, or TSB12LV26IPZT equivalent, key selection criteria include PCI bus master bursting capability (132 MB/s), OHCI-compliant memory-mapped register interface, D0/D2/D3 power state support, and LQFP-100 package compatibility with JEDEC tray delivery.
Technical Context
The TSB12LV26IPZT implements a PCI-to-1394 bridge with OHCI-compliant memory-mapped control registers accessed via nonprefetchable BARs. Its internal arbitration logic and bus-holding buffers optimize PHY/link interface timing for isochronous streaming and asynchronous packet handling.
It supports PCI CLKRUN protocol and physical write posting of up to three outstanding transactions, enabling efficient latency tolerance in host systems. The device operates at 33 MHz PCI clock rate and uses an advanced low-power CMOS process with 1.8-V internally regulated core voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCI Interface | 3.3-V signaling compliant with PCI Local Bus Spec Rev 2.2; supports burst transfers and configuration cycles |
| IEEE 1394 Data Rates | 100/200/400 Mbits/s; fully compatible with IEEE Std 1394-1995 and 1394a-2000 |
| Power States | D0 (active), D2 (low-power active), D3 (off); compliant with PC 99 Design Guide and PCI Power Management Spec |
| FIFO Depth | Deep buffering for 1394 data; tolerates large host memory controller latency during burst transfers |
| Core Supply | 3.3-V input with on-chip regulation to 1.8-V core voltage; enables low-power operation at 33 MHz PCI clock |
| ROM Interface | 2-wire serial ROM interface for boot configuration and device identification |
| Package | TQFP-100 (PZT); 14.0 × 14.0 mm body, 0.5-mm pitch, RoHS-compliant NIPDAU finish |
Pinout & Package
TQFP-100 (PZT) package: 14.0 × 14.0 mm body, 0.5-mm lead pitch, exposed thermal pad not present, JEDEC-standard 10×10 grid, moisture sensitivity level 4 (260°C peak reflow, 72-hour floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | PCI Clock Input | Accepts 33-MHz PCI system clock; synchronizes all PCI interface logic |
| FRAME# | PCI Frame Signal | Indicates start/end of PCI transaction; used for address/data phase control |
| AD[31:0] | PCI Address/Data Multiplexed Bus | Time-multiplexed 32-bit address and data path; supports burst mode transfers |
| C/BE#[3:0]# | PCI Command/Byte Enable | Defines transfer type (I/O, memory, config) and active byte lanes per cycle |
| PAR | PCI Parity | Even parity over AD[31:0] and C/BE#[3:0]#; enables error detection in PCI transactions |
| PHY_CLK | 1394 Physical Layer Clock | Output clock for external PHY device; synchronized to 1394 bus timing requirements |
| SB_DATA[7:0] | 1394 Serial Bus Data | 8-bit parallel interface to external PHY; carries encoded 1394 packet data |
| RESET# | Global Reset Input | Asynchronous active-low reset; initializes PCI configuration space and OHCI registers |
Key Features
| Feature | Design Value |
|---|---|
| OHCI-Lynx™ Compliance | Fully implements Open Host Controller Interface specification with memory-mapped, nonprefetchable register space for OS driver compatibility |
| PCI Bus Master Bursting | Transfers full cacheline (128 bytes) at up to 132 MB/s; eliminates per-word overhead in high-bandwidth storage transfers |
| Physical Write Posting | Buffers up to three outstanding write transactions to PHY; decouples PCI latency from 1394 bus timing constraints |
| Multiple Isochronous Contexts | Hardware support for concurrent real-time streams (e.g., audio + video); enables guaranteed bandwidth allocation without CPU scheduling |
| PCI_CLKRUN Protocol Support | Enables dynamic clock gating during idle periods; reduces system power consumption in ACPI-compliant platforms |
Applications
| Desktop PC FireWire Expansion | External Storage Subsystem |
|---|---|
Use Scenario: Adding IEEE 1394 connectivity to legacy PCI-based motherboards via add-in card. IC Role / Device Role / Timing Role: PCI-to-1394 bridge providing OHCI-compliant link layer and memory-mapped register interface. Use Value: Enables plug-and-play FireWire peripherals (camcorders, hard drives) without requiring chipset-level 1394 integration. | Use Scenario: High-speed external RAID or tape backup enclosure with SBP-2 protocol support. IC Role / Device Role / Timing Role: Host controller managing isochronous streaming and asynchronous command/response traffic to SCSI-over-1394 devices. Use Value: Achieves sustained 400-Mbit/s throughput with physical write posting and deep FIFO buffering under variable host latency. |
| Digital Audio Workstation Interface | Industrial Machine Vision System |
Use Scenario: Low-latency audio I/O between PC and FireWire-connected audio interfaces. IC Role / Device Role / Timing Role: Real-time isochronous scheduler with multiple hardware contexts for time-critical sample streams. Use Value: Guarantees jitter-free 24-bit/96-kHz multi-channel audio transport using dedicated isochronous channel hardware. | Use Scenario: High-resolution camera acquisition subsystem with deterministic frame capture timing. IC Role / Device Role / Timing Role: Synchronized 1394 link controller coordinating trigger signals and image data bursts over FireWire. Use Value: Supports precise timestamping and frame-accurate transfer via OHCI cycle timer and external synchronization inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PCI-based IEEE 1394 host controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB12LV26PZT | Same silicon die and functional spec; differs only in marking and RoHS compliance documentation status | No functional difference; identical use in desktop PC add-in cards and storage enclosures | Select TSB12LV26PZT when standard commercial-grade qualification and TI's current production lot traceability are required |
| TSB12LV26-EP | Enhanced Product variant qualified for extended temperature (–55°C to 125°C) and higher reliability screening | Required for defense/aerospace/medical systems where extended temp range and burn-in testing are mandated | Choose TSB12LV26-EP only when application requires MIL-STD-883 or AEC-Q200-equivalent stress testing and extended operating range |
Compared with TSB12LV26IPZT, the TSB12LV26PZT offers identical electrical and timing behavior with updated manufacturing traceability, while the TSB12LV26-EP adds military-grade reliability at the cost of higher unit price and longer lead times - both require no PCB redesign but differ in qualification scope and supply chain assurance.
Availability
TSB12LV26IPZT is available at Aetrix Electronics and suitable for desktop PC expansion, external storage subsystems, digital audio workstations, and industrial machine vision systems requiring stable component supply and long-term obsolescence management.
Supply support for TSB12LV26IPZT 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, delivering analog and embedded processing solutions across industrial, automotive, and personal electronics markets.
The TSB12LV26IPZT belongs to TI's legacy IEEE 1394 host controller product line, designed specifically for high-volume PC platform integration with OHCI-Lynx™ compliance and PCI bus mastering for storage and multimedia peripherals.
FAQ
What is the primary function of the TSB12LV26IPZT in a system architecture?
The TSB12LV26IPZT serves as a PCI-to-IEEE 1394 host controller, implementing the OHCI-Lynx™ link layer to enable FireWire connectivity on PCI-based systems. It handles packet assembly/disassembly, isochronous scheduling, and memory-mapped register access. The TSB12LV26IPZT bridges the PCI bus to the 1394 physical layer, supporting 100/200/400 Mbits/s data rates and SBP-2 storage protocols without requiring host CPU intervention for bulk transfers.
Does the TSB12LV26IPZT support hot-plug detection for IEEE 1394 devices?
Yes, the TSB12LV26IPZT supports IEEE 1394 hot-plug detection through its integrated link-layer logic and PHY interface monitoring. It generates bus reset events and updates configuration ROM parsing upon cable insertion/removal. The TSB12LV26IPZT relies on external PHY devices (e.g., TSB41AB2) for physical-layer plug detection, but its OHCI-compliant register set provides software-accessible status bits for port enable/disable and connection change interrupts.
What power states does the TSB12LV26IPZT implement, and how are they managed?
The TSB12LV26IPZT implements D0 (fully operational), D2 (low-power active), and D3 (off) power states per PCI Bus Power Management Interface Specification and PC 99 Design Guide. State transitions are controlled via PCI configuration space PMCSR register writes and CLKRUN# signaling. The TSB12LV26IPZT maintains register context in D2 and supports wake-on-1394-event in D3, enabling ACPI-compliant suspend/resume in desktop platforms.
Can the TSB12LV26IPZT operate with a 5-V PCI bus?
No, the TSB12LV26IPZT is specified exclusively for 3.3-V PCI bus signaling. Although earlier TI 1394 controllers (e.g., TSB12LV21) supported dual-voltage PCI interfaces, the TSB12LV26IPZT datasheet and packaging documentation confirm 3.3-V-only I/O tolerance. Using it on a 5-V PCI slot risks permanent damage. The TSB12LV26IPZT requires a 3.3-V PCI slot or level-shifting interface for compatibility.
What is the role of the external serial ROM interface on the TSB12LV26IPZT?
The 2-wire serial ROM interface on the TSB12LV26IPZT loads vendor-specific configuration data during power-up, including IEEE 1394 node ID, vendor ID, and unit directories required by OHCI drivers. It supports standard EEPROM protocols and is accessed via dedicated SCL/SDA pins. This interface allows field-upgradable device identity and eliminates hardcoded values in the TSB12LV26IPZT silicon, enabling flexible board-level customization without mask changes.
TSB12LV26IPZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-TQFP
- Programmable:
- Not Verified
- Protocol:
- IEEE 1394
- Function:
- Controller
- Interface:
- PCI
- Standards:
- IEEE 1394a-2000, OHCI-Lynx™
- Voltage - Supply:
- 3.3V, 5V
- Current - Supply:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- 100-TQFP (14x14)
- Grade:
- -
- Qualification:
- -
TSB12LV26IPZT FAQ
1.How can I place an order for TSB12LV26IPZT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB12LV26IPZT 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 TSB12LV26IPZT reliable?
The price and inventory of TSB12LV26IPZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB12LV26IPZT is usually 5 days.
3.What payment methods are accepted for TSB12LV26IPZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB12LV26IPZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB12LV26IPZT?
TSB12LV26IPZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB12LV26IPZT 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 TSB12LV26IPZT?
For technical support, including TSB12LV26IPZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB12LV26IPZT requirements.
6.How does Aetrix verify that TSB12LV26IPZT is sourced from the original manufacturer or authorized distributors?
All TSB12LV26IPZT 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 TSB12LV26IPZT meets industry standards.
7.What is the process for return or replacement of TSB12LV26IPZT?
All TSB12LV26IPZT units undergo pre-shipment inspection (PSI). If there is an issue with TSB12LV26IPZT, 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 TSB12LV26IPZT part is unused and in its original packaging.
Return procedure for TSB12LV26IPZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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