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Texas Instruments TSB43AA82APGE
- Part No.:
- TSB43AA82APGE
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 144-LQFP
- Datasheet:
-
TSB43AA82APGE.pdf
- Description:
- IC PHY LINK LAYR HP 2PRT 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,455
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Product details
Overview
TSB43AA82APGE from Texas Instruments is an IEEE 1394a-2000–compliant integrated PHY and link-layer controller supporting 400-Mbps two-port physical layer operation, 8-/16-bit asynchronous/synchronous DMA interface with burst mode, and automated SBP-2 ORB/page table fetching for storage peripherals in digital video camcorders and external hard drives.
For engineers reviewing the TSB43AA82APGE datasheet, TSB43AA82APGE pinout, TSB43AA82APGE application, or TSB43AA82APGE equivalent, key selection criteria include its 3.3-V/1.8-V dual-rail power architecture, three independent FIFOs (1512-byte async command, 4728-byte DMA, 504-byte Config ROM/LOG), and support for ATAPI Ultra-DMA and SCSI modes via parallel host bus interface.
Technical Context
The TSB43AA82APGE implements a full IEEE 1394a-2000 link-layer stack with hardware-accelerated transaction management, including automated read response for ConfigROM registers, single-retry protocol handling, and split-transaction timeout control via CFR time-limit register. It embeds a dedicated SBP-2 transaction/timer manager supporting up to four initiators.
Its host interface operates at up to 40 MHz over 8-/16-bit multiplexed or separated data/address buses, with handshake-controlled DMA transfers and configurable FIFO thresholds. The integrated 400-Mbps PHY includes auto-negotiation, cable bias control, and differential signaling compliant with IEEE 1394-1995 physical layer requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IEEE Compliance | IEEE 1394a-2000 and IEEE 1394-1995; enables interoperability with FireWire 400 devices and legacy 1394 networks. |
| Data Rate | 400 Mbps (two-port PHY); supports high-bandwidth streaming for uncompressed DV video and large-block storage transfers. |
| Host Interface | 8-/16-bit asynchronous/synchronous DMA with burst mode; allows direct connection to microcontrollers without glue logic. |
| FIFO Memory | Asynchronous command (1512 B), DMA (4728 B), Config ROM/LOG (504 B); decouples host and 1394 traffic for deterministic latency. |
| Power Supply | Single 3.3-V supply with internal 1.8-V regulator; reduces system-level power delivery complexity and thermal load. |
| Operating Temp | 0°C to 70°C; qualified for commercial CE applications including consumer video equipment and desktop peripherals. |
| Protocol Support | SBP-2 (Serial Bus Protocol 2) and DPP (Direct Print Protocol); enables plug-and-play mass storage and printer connectivity. |
Pinout & Package
LQFP-144 (PGE) package with 0.5-mm pitch, 20.20 mm × 20.20 mm body size, and JEDEC MS-026 compliance; designed for surface-mount assembly and thermal dissipation in compact CE enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Master clock input | Accepts 24.576-MHz crystal or oscillator reference for synchronous 1394 timing and internal PLL lock. |
| RESET# | Active-low reset | Asynchronous hardware reset that clears all internal state machines and FIFO pointers on deassertion. |
| DMARQ/DMACK# | DMA request/acknowledge | Handshake pair controlling burst-mode DMA transfers between host and TSB43AA82APGE's 4728-byte FIFO. |
| AD[15:0] | Address/data bus | Multiplexed 16-bit bus supporting both address and data phases; eliminates need for separate address lines in space-constrained designs. |
| PHY[7:0] | PHY interface signals | Differential pair outputs (PHY0–PHY7) driving 1394 twisted-pair cables; include termination and bias control per IEEE 1394a spec. |
Key Features
| Feature | Design Value |
|---|---|
| Automated ORB Fetching | Hardware-managed fetch of Serial Bus Protocol 2 Operation Request Blocks from host memory without CPU intervention. |
| ConfigROM Access Engine | On-chip logic automatically responds to remote node reads of configuration ROM space, eliminating firmware polling overhead. |
| Split Transaction Control | Programmable timeout and retry behavior via CFR register; ensures robustness in noisy or high-latency 1394 network environments. |
| ATP/SCSI Mode Support | Native translation layer enabling direct attachment of ATAPI Ultra-DMA and SCSI devices to 1394 bus without bridge ICs. |
| Three Independent FIFOs | Isolated memory buffers prevent starvation across command, data, and configuration traffic streams during concurrent operations. |
Applications
| Digital Video Camcorder Interface | External Hard Drive Enclosure |
|---|---|
Use Scenario: Real-time transfer of uncompressed DV video frames from camcorder sensor to PC host over FireWire 400. IC Role / Device Role / Timing Role: Integrated PHY + link-layer controller managing isochronous channel allocation, packet serialization, and cycle timer synchronization. Use Value: Eliminates need for discrete PHY and link-layer ICs, reducing BOM count and PCB area while maintaining IEEE 1394a timing accuracy. | Use Scenario: High-speed backup and editing of large media files between USB-hosted systems and 3.5-inch SATA HDDs. IC Role / Device Role / Timing Role: SBP-2 protocol engine translating SCSI commands into 1394 packet transactions with automated page table management. Use Value: Enables plug-and-play storage with full ATAPI Ultra-DMA compatibility, achieving sustained 30+ MB/s throughput using 4728-byte DMA FIFO buffering. |
| Desktop Peripheral Docking Station | Professional Audio Interface |
Use Scenario: Multi-device aggregation (printer, scanner, storage) through single FireWire port on Windows/Linux workstation. IC Role / Device Role / Timing Role: Dual-role controller supporting both SBP-2 initiator and DPP target functions within same silicon die. Use Value: Reduces firmware complexity by offloading DPP segment data unit (SDU) register management and ARF-based receive buffering. | Use Scenario: Low-latency transmission of multi-channel PCM audio streams between DAW and external DSP rack over 1394. IC Role / Device Role / Timing Role: Isochronous resource manager allocating guaranteed bandwidth and handling cycle start packets with sub-125-µs jitter. Use Value: Achieves deterministic audio transport using hardware-accelerated isochronous header insertion/stripping and dedicated async command FIFO prioritization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 1394 link-layer controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB43AB22PGE | Supports IEEE 1394b (800 Mbps), adds 1394b repeater mode and enhanced error recovery; no DPP support. | Targeted at higher-bandwidth industrial vision systems requiring longer cable runs and deterministic error handling. | Choose TSB43AB22PGE only if 800-Mbps operation or 1394b repeater functionality is required; not drop-in compatible due to different register map and PHY timing. |
| FWH1394A | Single-chip 1394a PHY+link solution with smaller 100-pin TQFP package and reduced FIFO depth (DMA FIFO = 2048 B). | Suitable for cost-sensitive embedded printers and scanners where SBP-2 initiator count is limited to two. | Select FWH1394A when board space and BOM cost are critical constraints and full four-initiator SBP-2 support is unnecessary. |
Compared with TSB43AB22PGE and FWH1394A, the TSB43AA82APGE delivers optimal balance of SBP-2 automation, DPP capability, and large FIFO resources for CE storage and video products-without requiring 1394b bandwidth or sacrificing initiator scalability.
Availability
TSB43AA82APGE is available at Aetrix Electronics and suitable for digital video camcorders, external hard drive enclosures, and desktop peripheral docking stations requiring stable component supply for legacy FireWire 400 integration.
Supply support for TSB43AA82APGE 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 delivering analog and embedded processing solutions, with leadership in interface, power management, and signal chain technologies.
The TSB43AA82APGE belongs to TI's IEEE 1394 interface product line, engineered specifically for high-volume consumer electronics applications requiring certified FireWire 400 connectivity with minimal firmware overhead.
FAQ
What is the primary function of the TSB43AA82APGE in a FireWire 400 system?
The TSB43AA82APGE serves as a fully integrated IEEE 1394a-2000 PHY and link-layer controller, handling physical signaling, packet assembly/disassembly, SBP-2 protocol execution, and DMA coordination. In a FireWire 400 system, the TSB43AA82APGE manages isochronous and asynchronous traffic, automates ORB fetching, and interfaces directly to host microcontrollers via its 8-/16-bit bus-enabling complete 1394 connectivity without external logic. Its design eliminates the need for discrete PHY and link chips in CE storage and video products.
Does the TSB43AA82APGE support IEEE 1394b (FireWire 800) operation?
No, the TSB43AA82APGE does not support IEEE 1394b. It is strictly compliant with IEEE 1394-1995 and IEEE 1394a-2000, providing 100/200/400 Mbps operation only. The TSB43AA82APGE lacks the 1394b PHY circuitry, encoding scheme (beta encoding), and repeater mode required for 800 Mbps. For 1394b capability, TI offers the TSB43AB22PGE, which is a distinct device with different pinout, register mapping, and electrical specifications-not a pin-compatible upgrade path from the TSB43AA82APGE.
How does the TSB43AA82APGE handle SBP-2 command execution without host CPU involvement?
The TSB43AA82APGE uses dedicated hardware engines to execute SBP-2 commands autonomously: its SBP-2 transaction/timer manager fetches ORBs from host memory, retrieves associated page tables for scatter-gather DMA, and transmits status blocks-all without CPU polling or interrupt servicing. This offloads the host processor and ensures deterministic latency. The TSB43AA82APGE's 1512-byte asynchronous command FIFO buffers incoming requests, while its 4728-byte DMA FIFO sustains high-throughput data movement. These features make the TSB43AA82APGE ideal for real-time storage applications where CPU cycles must be preserved.
What are the power supply requirements for reliable operation of the TSB43AA82APGE?
The TSB43AA82APGE requires a single 3.3-V ±5% supply for I/O and core logic, with an internal voltage regulator generating a regulated 1.8-V supply for the PHY and low-power logic domains. Decoupling capacitors (0.1 µF ceramic per power pin) must be placed within 5 mm of each VDD/VSS pair. The device draws approximately 280 mA typical at 400 Mbps under full load. No external 1.8-V rail is needed-the TSB43AA82APGE's internal regulator handles conversion and filtering, simplifying power design for consumer electronics targeting cost-sensitive CE applications.
Is the TSB43AA82APGE still in active production, and what is its lifecycle status?
The TSB43AA82APGE is marked "Obsolete" in TI's official packaging addendum, indicating it is no longer in active production. TI continues to support existing customer orders through authorized distributors with remaining inventory, but no new wafer starts are planned. For new designs, TI recommends evaluating the TSB43AB22PGE (1394b-capable) or exploring alternative interface solutions such as USB 3.x or PCIe-based bridges. Aetrix Electronics maintains traceable stock of TSB43AA82APGE for legacy repair and continuity programs, with full MSL and RoHS documentation available upon request.
TSB43AA82APGE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 144-LQFP
- Programmable:
- Not Verified
- Protocol:
- IEEE 1394
- Function:
- Physical Layer Controller
- Interface:
- Parallel
- Standards:
- IEEE 1394a-2000
- Voltage - Supply:
- 3.3V
- Current - Supply:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- 144-LQFP (20x20)
- Grade:
- -
- Qualification:
- -
TSB43AA82APGE FAQ
1.How can I place an order for TSB43AA82APGE through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB43AA82APGE 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 TSB43AA82APGE reliable?
The price and inventory of TSB43AA82APGE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB43AA82APGE is usually 5 days.
3.What payment methods are accepted for TSB43AA82APGE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB43AA82APGE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB43AA82APGE?
TSB43AA82APGE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB43AA82APGE 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 TSB43AA82APGE?
For technical support, including TSB43AA82APGE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB43AA82APGE requirements.
6.How does Aetrix verify that TSB43AA82APGE is sourced from the original manufacturer or authorized distributors?
All TSB43AA82APGE 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 TSB43AA82APGE meets industry standards.
7.What is the process for return or replacement of TSB43AA82APGE?
All TSB43AA82APGE units undergo pre-shipment inspection (PSI). If there is an issue with TSB43AA82APGE, 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 TSB43AA82APGE part is unused and in its original packaging.
Return procedure for TSB43AA82APGE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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