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Texas Instruments TSB43AA82GHH
- Part No.:
- TSB43AA82GHH
- Manufacturer:
- Texas Instruments
- Category:
- Application Specific Microcontrollers
- Package:
- -
- Datasheet:
-
TSB43AA82GHH.pdf
- Description:
- SERIAL I/O CONTROLLER, 2 CHANNEL
- Quantity:
- Payment:
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Inventory:1,599
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Product details
Overview
TSB43AA82GHH from Texas Instruments is a IEEE 1394a-2000 (FireWire) link-layer controller IC supporting 100/200/400 Mbps data rates, integrated with configurable DMA interface, configuration ROM, and PHY interface. It implements SBP-2 protocol for storage device connectivity and operates in synchronous, asynchronous SCSI, and handshake DMA modes. Used in external hard drive enclosures and digital camcorder docking stations.
For engineers reviewing the TSB43AA82GHH datasheet, TSB43AA82GHH pinout, TSB43AA82GHH application, or TSB43AA82GHH equivalent, key selection criteria include IEEE 1394a compliance, 179-pin LQFP package compatibility, dual-mode host/DMA interface support, SBP-2 transaction handling capability, and PHY register programmability.
Technical Context
The TSB43AA82GHH integrates a full IEEE 1394a link layer with Fast ORB Exchanger (FOX), Auto Response (AR), Transaction Timer/Manager (TrMgr), and Packet Distributor/Packetizer blocks. It supports both initiator and target roles in SBP-2 storage protocols and handles asynchronous command FIFOs (ATF/ARF) and bulky data FIFOs (DTF/DRF) totaling 1182 quadlets.
Its host interface operates in parallel or multiplexed mode with 8-/16-bit data bus width, while the DMA interface supports synchronous (Modes A/D/G), asynchronous SCSI (Modes E/H), and handshake (Modes B/C/F) protocols. The PHY interface complies with IEEE 1394a physical layer timing and signaling requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 100/200/400 Mbps - selectable IEEE 1394a link speeds with automatic negotiation |
| Interface Modes | Parallel & multiplexed host I/F; synchronous, SCSI, and handshake DMA I/F - enables flexible system integration with microcontrollers or ASICs |
| FIFO Capacity | 378 quadlets (async cmd), 126 quadlets (ConfigROM/LOG), 1182 quadlets (BD) - supports high-throughput streaming and complex command queuing |
| Protocol Support | IEEE 1394a-2000 link layer + SBP-2 - enables plug-and-play mass storage device implementation without external protocol translation |
| Operating Voltage | 3.3 V ±0.3 V - single-supply operation compatible with modern low-voltage logic families |
| Package | 179-terminal GHH (LQFP) - surface-mount package with 0.5 mm pitch, suitable for compact consumer electronics PCBs |
Pinout & Package
TSB43AA82GHH is housed in a 179-terminal GHH package - a 24 mm × 24 mm thin quad flat pack (TQFP) with 0.5 mm lead pitch and exposed thermal pad. Pin numbering follows standard counter-clockwise convention from corner marker.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Crystal input | Accepts 24.576 MHz crystal for IEEE 1394a timing reference; internal oscillator drives link-layer clock domain |
| PHYCLK | PHY interface clock | Provides synchronized clock to external PHY device; required for 1394a physical layer handshaking |
| ASYNCH# | Mode select | Active-low signal selecting asynchronous DMA interface operation (SCSI or handshake modes) |
| DMAREQ/DMACK# | DMA control | Open-drain request/acknowledge pair enabling burst or cycle-stealing DMA transfers with host processor |
| RESET# | Global reset | Asynchronous active-low reset that clears all internal registers and FIFOs, initializing link-layer state machine |
Key Features
| Feature | Design Value |
|---|---|
| SBP-2 Command ORB Handling | Hardware-accelerated Fast ORB Exchanger (FOX) processes linked ORBs without CPU intervention, reducing host overhead in storage applications |
| Configurable DMA Interface | Supports five distinct DMA modes (A–H) with programmable timing, enabling interoperability with legacy SCSI controllers and custom ASICs |
| Integrated Configuration ROM | 126-quadlet ConfigROM space with dedicated control register allows embedded device identification and unit directory definition per IEEE 1394 standard |
| PHY Register Access | Dedicated PHY Access Register (CFR offset 20h) enables direct read/write of external PHY registers for cable detection, power class, and link training |
| Transaction Timer/Manager | Hardware timer monitors pending transactions and auto-aborts stalled requests, preventing bus lockup during error conditions |
Applications
| External Hard Drive Enclosure | Digital Camcorder Docking Station |
|---|---|
Use Scenario: Connects 2.5" SATA HDD to host PC via FireWire 400 port with hot-plug capability. IC Role / Device Role / Timing Role: Acts as SBP-2 target controller translating SCSI commands from host to ATA/SATA bridge; manages isochronous bandwidth allocation. Use Value: Enables full-speed 400 Mbps bulk data transfer with guaranteed latency for video capture playback without frame drops. | Use Scenario: Enables high-speed video file transfer from MiniDV camcorder to editing workstation over FireWire. IC Role / Device Role / Timing Role: Implements IEEE 1394a link layer and SBP-2 target functionality; handles AV/C command set passthrough for transport control. Use Value: Supports real-time DV stream ingestion at native 25 Mbps rate with precise timecode synchronization via cycle timer register. |
| Professional Audio Interface | Industrial Machine Vision System |
Use Scenario: Interfaces multi-channel audio ADC/DAC module to FireWire-equipped DAW with low-latency buffer management. IC Role / Device Role / Timing Role: Functions as isochronous data pump using DRF/DTF FIFOs; synchronizes sample clocks via 1394 cycle timer. Use Value: Delivers sub-1 ms end-to-end latency for 192 kHz/24-bit audio streams with jitter under ±25 ns. | Use Scenario: Connects high-resolution line-scan camera to vision controller for automated optical inspection. IC Role / Device Role / Timing Role: Serves as FireWire link controller with configurable BD FIFO depth to absorb bursty image data from camera sensor. Use Value: Sustains 300 MB/s sustained throughput using 400 Mbps link with packetizer-assisted zero-copy DMA transfers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar IEEE 1394 link-layer controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB43AB2A | Integrated PHY (no external PHY required); 144-pin PGE package; lacks SBP-2 FOX acceleration | Reduced BOM count for cost-sensitive consumer devices; not suitable for high-throughput SBP-2 storage targets | Select when PHY integration and smaller footprint outweigh need for advanced ORB chaining |
| TLK2201B | 10/100/1000BASE-T Ethernet PHY only; no IEEE 1394 logic or SBP-2 support | Not a functional alternative - serves entirely different protocol stack (Ethernet vs FireWire) | Not recommended as substitute; only relevant if migrating from FireWire to Gigabit Ethernet infrastructure |
Compared with TSB43AB2A, the TSB43AA82GHH provides superior SBP-2 performance via hardware ORB chaining but requires external PHY and larger PCB area; TLK2201B is incompatible at protocol level and cannot replace TSB43AA82GHH in FireWire systems.
Availability
TSB43AA82GHH is available at Aetrix Electronics and suitable for external storage subsystems, professional AV interfaces, industrial imaging equipment, and legacy FireWire peripheral designs requiring stable component supply across extended product lifecycles.
Supply support for TSB43AA82GHH 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, designing analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The TSB43AA82GHH belongs to TI's IEEE 1394 FireWire link-layer controller family, engineered specifically for high-reliability, low-latency storage and multimedia peripheral connectivity in consumer and professional equipment.
FAQ
What is the primary function of the TSB43AA82GHH in a FireWire system?
The TSB43AA82GHH serves as a full IEEE 1394a link-layer controller implementing the data link and transaction layers. It handles packet assembly/disassembly, arbitration, cycle timing, and SBP-2 command processing. In a FireWire system, the TSB43AA82GHH bridges the host processor to the physical layer, enabling compliant 100/200/400 Mbps communication. Its integrated Fast ORB Exchanger (FOX) accelerates storage command execution, making the TSB43AA82GHH ideal for external hard drive and camcorder docking applications.
Does the TSB43AA82GHH include an integrated PHY?
No, the TSB43AA82GHH does not include an integrated PHY. It requires an external IEEE 1394a-compliant PHY device (e.g., TSB41AB1, TSB41AB2) connected via the PHY interface pins (PHYCLK, PHYDATA, etc.). The TSB43AA82GHH provides full register-level access to the external PHY through its PHY Access Register (CFR offset 20h), allowing software configuration of power class, cable detect, and link training parameters. This separation enables design flexibility and optimized signal integrity in the TSB43AA82GHH-based system.
What DMA interface modes does the TSB43AA82GHH support?
The TSB43AA82GHH supports three major DMA interface modes: synchronous (Modes A, D, G), asynchronous SCSI (Modes E, H), and asynchronous handshake (Modes B, C, F). Each mode defines specific timing relationships between DMAREQ/DMACK# signals and data bus activity. Mode selection is controlled by the DMA Control Register (CFR offset 90h) and Bulky Interface Control Register (CFR offset 94h). These modes allow seamless integration with diverse host processors - from legacy SCSI controllers to custom ASICs - without requiring external glue logic in the TSB43AA82GHH design.
How is the TSB43AA82GHH configured for SBP-2 storage applications?
The TSB43AA82GHH is configured for SBP-2 storage applications through its Configuration ROM (ConfigROM) space and Fast ORB Exchanger (FOX) registers. The 126-quadlet ConfigROM is programmed with vendor ID, model ID, and unit directories per IEEE 1394 standards. SBP-2 command processing is enabled by initializing the ORB Pointer Registers (54h/58h), setting the Command Agent Register (4Ch), and configuring the DMA Control Register (90h) for target-mode operation. The TSB43AA82GHH's hardware FOX engine then autonomously fetches and executes linked ORBs, offloading the host CPU and ensuring deterministic response times critical for TSB43AA82GHH-based storage targets.
What is the significance of the 179-pin GHH package for the TSB43AA82GHH?
The 179-pin GHH package is a 24 mm × 24 mm thin quad flat pack (TQFP) with 0.5 mm lead pitch and exposed thermal pad, specifically assigned to the TSB43AA82GHH variant. This package provides sufficient I/O density for the full IEEE 1394a link-layer interface - including separate host bus, DMA bus, PHY interface, and control signals - while maintaining manufacturability in high-volume consumer electronics. The GHH package distinguishes the TSB43AA82GHH from pin-compatible variants like the 144-pin PGE (TSB43AA82) and 176-pin GGW packages, ensuring correct mechanical and thermal design when specifying the TSB43AA82GHH in layout.
TSB43AA82GHH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Applications:
- -
- Core Processor:
- -
- Program Memory Type:
- -
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- -
- Number of I/O:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
TSB43AA82GHH FAQ
1.How can I place an order for TSB43AA82GHH through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB43AA82GHH 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 TSB43AA82GHH reliable?
The price and inventory of TSB43AA82GHH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB43AA82GHH is usually 5 days.
3.What payment methods are accepted for TSB43AA82GHH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB43AA82GHH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB43AA82GHH?
TSB43AA82GHH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB43AA82GHH 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 TSB43AA82GHH?
For technical support, including TSB43AA82GHH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB43AA82GHH requirements.
6.How does Aetrix verify that TSB43AA82GHH is sourced from the original manufacturer or authorized distributors?
All TSB43AA82GHH 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 TSB43AA82GHH meets industry standards.
7.What is the process for return or replacement of TSB43AA82GHH?
All TSB43AA82GHH units undergo pre-shipment inspection (PSI). If there is an issue with TSB43AA82GHH, 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 TSB43AA82GHH part is unused and in its original packaging.
Return procedure for TSB43AA82GHH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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