My Inquiry
My Account
Texas Instruments TSB42AA4PDT
- Part No.:
- TSB42AA4PDT
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 128-TQFP
- Datasheet:
-
TSB42AA4PDT.pdf
- Description:
- IC CONTROLLER LINK LAYER 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:23,903
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TSB42AA4PDT from Texas Instruments is an IEEE 1394a Link Layer Controller IC supporting DVB MPEG2, DirecTV™, and DV program streams per IEC 61883-2/4, with 8-Kbyte configurable FIFO, DTCP content protection (M6 cipher + SHA-1 + RNG), and dual HSDI ports for full-duplex AV streaming in consumer electronics systems.
For engineers reviewing the TSB42AA4PDT datasheet, TSB42AA4PDT pinout, TSB42AA4PDT application, or TSB42AA4PDT equivalent, key selection criteria include IEEE 1394a compliance, DTCP hardware acceleration, 128-pin TQFP package, 3.3-V single-supply operation, and support for simultaneous multi-stream transport including MPEG2 PID filtering and packet insertion.
Technical Context
The TSB42AA4PDT implements a dedicated 1394 link layer with integrated bus management, self-ID verification, and JTAG scan support. It processes isochronous and asynchronous data using separate acknowledge buffers and programmable almost-full/almost-empty FIFO thresholds for flow control.
Its dual High-Speed Data Interface (HSDI) ports operate in byte-wide or serial mode, each with independent M6 baseline cipher engines for DTCP encryption/decryption. The device interfaces directly to TI's TSB41LV0X/TSB41AXX PHYs and common MPEG2 decoder chipsets without external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IEEE Standard | Compliant with IEEE 1394-1995 and IEEE 1394a–2000 for full link-layer functionality |
| FIFO Size | 8-Kbyte internal RAM partitionable into up to eight independent Tx/Rx FIFOs for stream isolation |
| DTCP Support | Hardware-accelerated DTCP with two M6 ciphers, SHA-1 engine, and RNG-enables real-time encrypted streaming |
| HSDI Ports | Two independent bidirectional High-Speed Data Interfaces supporting byte-wide or serial modes |
| Supply Voltage | Single 3.3-V supply-eliminates need for multiple rail regulation in CE designs |
| Interface Bus | 16-bit Motorola 68000/68020-style microprocessor interface with interrupt-driven host control |
| PID Filtering | Embedded PID filtering and packet insertion capability for MPEG2 transport stream manipulation |
Pinout & Package
TSB42AA4PDT is housed in a 128-pin TQFP package (drawing PDT), measuring 14.0 mm × 14.0 mm × 1.2 mm max height, with 0.4-mm lead pitch and JEDEC MO-137 compliant footprint. Moisture Sensitivity Level is Level-3 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Reference clock input | Accepts 24.576-MHz crystal or oscillator for IEEE 1394 timing synchronization |
| PHY_CLK | PHY interface clock | Output clock synchronized to physical layer device for deterministic data transfer |
| HSDI_A[7:0] | Primary HSDI data bus | Byte-wide parallel interface to MPEG2 decoder or encoder chipset |
| HSDI_B[7:0] | Secondary HSDI data bus | Independent parallel path enabling simultaneous playback/recording of encrypted streams |
| ASYNC_ACK | Asynchronous acknowledge buffer control | Dedicated signal reduces host CPU overhead during async transaction tracking |
| JTAG_TCK/TMS/TDI/TDO | Boundary-scan test interface | Enables post-assembly I/O verification per IEEE 1149.1 without functional firmware |
Key Features
| Feature | Design Value |
|---|---|
| DTCP Hardware Engine | On-chip M6 cipher, SHA-1 hash, and RNG eliminate software crypto bottlenecks for real-time protected streaming |
| Configurable 8-KB FIFO | Partitionable into up to eight independent FIFOs-enables concurrent handling of DVB, DV, and async streams |
| Dual HSDI Ports | Two fully independent high-speed data interfaces support simultaneous encode/decode or record/playback paths |
| MPEG2 Transport Stream Support | Native PID filtering and packet insertion allow in-device stream editing without host processor intervention |
| Bus Manager Integration | Embedded bus manager and automatic self-ID reduce host driver complexity and boot-time latency |
Applications
| Digital Video Recorder (DVR) | Satellite Set-Top Box |
|---|---|
Use Scenario: Recording encrypted DirecTV™ MPEG2 transport streams while simultaneously playing back stored DV content. IC Role / Device Role / Timing Role: Link layer controller managing isochronous bandwidth allocation, DTCP decryption, and dual-HSDI routing between tuner and storage subsystems. Use Value: Enables concurrent record-and-play with hardware-accelerated content protection-no host CPU involvement in stream encryption/decryption. | Use Scenario: Receiving and decrypting DVB MPEG2 transport streams from satellite tuner for display on HD television. IC Role / Device Role / Timing Role: 1394a link layer bridging tuner PHY to video decoder via HSDI, performing PID filtering and time-stamp-based release per IEC 61883-4. Use Value: Reduces system-level latency and jitter by offloading MPEG2 stream parsing and DTCP processing from main SoC. |
| Digital Camcorder Playback Dock | Home Theater AV Receiver |
Use Scenario: Transferring DV-encoded video from camcorder to docked display or editing workstation over 1394. IC Role / Device Role / Timing Role: Link layer endpoint handling DV program stream formatting (IEC 61883-2), async acknowledgment, and FIFO buffering for glitch-free playback. Use Value: Eliminates frame drops during high-bitrate DV transfer using dedicated async ACK buffer and programmable FIFO thresholds. | Use Scenario: Aggregating audio/video streams from multiple 1394-connected sources (DVD player, DVR, camcorder) into unified HDMI output. IC Role / Device Role / Timing Role: Multi-stream 1394 link layer supporting simultaneous ingestion of DVB, DV, and async data with independent FIFO management. Use Value: Allows seamless source switching and format conversion without stream interruption-leveraging eight configurable FIFO partitions. |
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 |
|---|---|---|---|
| TSB42AB4PDT | Lacks DTCP hardware (no M6 cipher, SHA-1, or RNG); supports same 1394a features and FIFO architecture | Suitable for non-encrypted 1394 AV streaming only-cannot replace TSB42AA4PDT where DTCP is mandated | Select TSB42AB4PDT only when content protection is not required and cost reduction is prioritized |
| TSB42AA4IPDT | Industrial-grade temperature range (–40°C to 85°C) vs. commercial (0°C to 70°C); identical functionality and pinout | Required for extended-temperature CE equipment deployed in uncontrolled environments (e.g., automotive head units) | Choose TSB42AA4IPDT when operating temperature exceeds 70°C ambient or industrial qualification is needed |
Compared with TSB42AB4PDT and TSB42AA4IPDT, the TSB42AA4PDT uniquely delivers DTCP hardware acceleration within the commercial temperature grade-making it the sole option for cost-sensitive, encrypted 1394 consumer devices requiring full MPEG2/DV transport stream support.
Availability
TSB42AA4PDT is available at Aetrix Electronics and suitable for digital video recorders, satellite set-top boxes, camcorder docks, and home theater receivers requiring stable component supply for high-volume consumer electronics production.
Supply support for TSB42AA4PDT 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 for industrial, automotive, and consumer applications.
The ceLynx product line-including the TSB42AA4PDT-is designed specifically for high-performance IEEE 1394a link-layer processing in consumer electronics, with emphasis on encrypted MPEG2/DV transport stream handling and seamless integration with decoder chipsets.
FAQ
What is the primary function of the TSB42AA4PDT in a 1394-based system?
The TSB42AA4PDT serves as a full IEEE 1394a link layer controller, managing isochronous and asynchronous data transfers, bus topology discovery, self-identification, and DTCP-protected MPEG2/DV stream handling. It interfaces directly with PHY devices like the TSB41LV0X family and offloads critical timing, encryption, and stream management tasks from the host processor-making the TSB42AA4PDT essential for robust, low-latency consumer AV interconnects.
Does the TSB42AA4PDT support both DVB and DirecTV™ MPEG2 transport streams?
Yes, the TSB42AA4PDT explicitly supports both DVB MPEG2 transport streams (per IEC 61883-4) and DirecTV™ transport streams over IEEE 1394, as confirmed in the SLLA217 datasheet. Its hardware DTCP engine enables real-time encryption/decryption of both stream types, and its PID filtering and time-stamp-based release mechanisms ensure compliance with their respective transmission protocols-making the TSB42AA4PDT suitable for global satellite and broadcast CE platforms.
Is the TSB42AA4PDT pin-compatible with the TSB42AB4PDT?
Yes, the TSB42AA4PDT and TSB42AB4PDT share identical 128-pin TQFP (PDT) packaging, pinout, and electrical interface specifications. However, the TSB42AA4PDT includes DTCP hardware (M6 cipher, SHA-1, RNG) absent in the TSB42AB4PDT. While PCB layout can be reused, firmware and security architecture must be redesigned to leverage or bypass DTCP-so the TSB42AA4PDT is not a drop-in replacement unless content protection is required.
What is the role of the dual HSDI ports on the TSB42AA4PDT?
The dual HSDI ports on the TSB42AA4PDT provide two independent, bidirectional high-speed data interfaces-each configurable in byte-wide or serial mode. They enable simultaneous operations such as recording one MPEG2 stream while playing back another, or interfacing with separate encoder and decoder chipsets. This architecture allows full-duplex AV streaming with hardware-isolated data paths, reducing contention and ensuring deterministic latency-critical for the TSB42AA4PDT's use in premium consumer electronics.
What does "NRND" status mean for the TSB42AA4PDT, and is it still available for purchase?
"NRND" (Not Recommended for New Designs) indicates Texas Instruments no longer promotes the TSB42AA4PDT for new projects but continues manufacturing it to support existing customers. Aetrix Electronics maintains active inventory and supply chain support for the TSB42AA4PDT, including traceable sourcing and lifecycle coordination-ensuring continued availability for legacy production, repair, and long-lifecycle CE programs that depend on this specific DTCP-capable 1394 link layer controller.
TSB42AA4PDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 128-TQFP
- Programmable:
- Not Verified
- Protocol:
- IEEE 1394
- Function:
- Link Layer Controller
- Interface:
- Parallel
- Standards:
- IEEE 1394-1995, 1394a-2000
- Voltage - Supply:
- 3.3V
- Current - Supply:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- 128-TQFP (14x14)
- Grade:
- -
- Qualification:
- -
TSB42AA4PDT FAQ
1.How can I place an order for TSB42AA4PDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB42AA4PDT 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 TSB42AA4PDT reliable?
The price and inventory of TSB42AA4PDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB42AA4PDT is usually 5 days.
3.What payment methods are accepted for TSB42AA4PDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB42AA4PDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB42AA4PDT?
TSB42AA4PDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB42AA4PDT 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 TSB42AA4PDT?
For technical support, including TSB42AA4PDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB42AA4PDT requirements.
6.How does Aetrix verify that TSB42AA4PDT is sourced from the original manufacturer or authorized distributors?
All TSB42AA4PDT 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 TSB42AA4PDT meets industry standards.
7.What is the process for return or replacement of TSB42AA4PDT?
All TSB42AA4PDT units undergo pre-shipment inspection (PSI). If there is an issue with TSB42AA4PDT, 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 TSB42AA4PDT part is unused and in its original packaging.
Return procedure for TSB42AA4PDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSB42AA4PDT Tags
-
PTN5150AHXMP
NXP Semiconductors
-
USB3740B-AI9-TR
Microchip Technology
-
USB3740B-AI2-TR
Microchip Technology
-
USB3300-EZK-TR
Microchip Technology
-
USB3300-EZK
Microchip Technology
-
FUSB340TMX
onsemi
-
FUSB302BMPX
onsemi
-
DP83826IRHBR
Texas Instruments
-
MCP2518FDT-E/QBB
Microchip Technology
-
FUSB302MPX
onsemi
-
MCP2518FDT-E/SL
Microchip Technology
-
FT260Q-R
FTDI, Future Technology Devices International Ltd
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
