Texas Instruments TSB14C01APM
- Part No.:
- TSB14C01APM
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 64-LQFP
- Datasheet:
-
TSB14C01APM.pdf
- Description:
- IC LINK LYR CONTROLLER 64LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
TSB14C01APM from Texas Instruments is a 5-V IEEE 1394-1995 (FireWire) physical-layer transceiver IC for backplane-based high-speed serial bus nodes. It implements data-strobe encoding/decoding, arbitration clock generation, and 25/50 MHz parallel link interface to a companion link-layer controller (e.g., TSB12C01A), supporting 50 or 100 Mbits/s operation in industrial backplane systems.
For engineers reviewing the TSB14C01APM datasheet, TSB14C01APM pinout, TSB14C01APM application, or TSB14C01APM equivalent, this device requires external BTL/GTL transceivers, supports SCLK/TSCLK dual-phase system clocks, handles physical ID and priority configuration via TTL control lines, and operates across 0°C to 70°C in a 64-pin TQFP package.
Technical Context
The TSB14C01APM performs full IEEE 1394 backplane PHY functions: it resynchronizes incoming data to local clock, encodes outbound parallel data into data-strobe streams at 98.304 Mbits/s (S100) or 49.152 Mbits/s (S50), and provides separate transmit/receive paths with dedicated TDATA/TSTRB and RDATA/RSTRB terminals. It relies on external oscillators (49.152 MHz or 98.304 MHz) and requires an external driver stage for backplane interfacing.
Its logic-level interface includes bidirectional D0/D1 and CTL0/CTL1 signals, LREQ input for link-initiated requests, and configurable priority/ID inputs (EN_EXID, EX_ID[0–5], EN_EXPRI, EX_PRI[0–3]). Arbitration is managed internally using ARB_CLK, with PHYENA and PTEST_INDRV supporting test/debug modes only.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Interface Standard | IEEE 1394-1995 compliant backplane PHY layer, fully interoperable with FireWire implementations. |
| Data Rate | Supports 50 Mbits/s (S50) or 100 Mbits/s (S100) operation via OSC_SEL pin selection. |
| Link Interface | 25/50 MHz parallel interface: D0/D1 and CTL0/CTL1 bidirectional signals synchronized to SCLK output. |
| System Clock | Generates 49.152 MHz (±100 ppm) or 24.576 MHz SCLK/TSCLK outputs for link synchronization. |
| Supply Voltage | Single 5-V supply (4.5 V to 5.25 V); CMOS-level I/O compatible with TTL inputs. |
| Operating Temperature | 0°C to 70°C ambient range, validated for industrial backplane environments. |
| Package | 64-pin Thin Quad Flat Pack (TQFP, PM), lead-free compatible per TI specifications. |
Pinout & Package
Packaged in a 64-pin TQFP (PM) for 0°C to 70°C operation. Pin assignments are defined for the PM package variant per TI datasheet SGLS107A.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| TDATA / TSTRB | Transmit data/strobe outputs | CMOS-level serialized outbound data-strobe stream; require external drivers for backplane connection. |
| RDATA / RSTRB | Receive data/strobe inputs | TTL-level inbound encoded data-strobe; decoded internally to recover clock and parallel data. |
| D0 / D1 / CTL0 / CTL1 | Link-layer interface I/O | Bidirectional parallel interface to link controller (e.g., TSB12C01A); timing referenced to SCLK. |
| SCLK / TSCLK | System clock outputs | 49.152 MHz (S100) or 24.576 MHz (S50) clocks provided to link; TSCLK is 180° out-of-phase with SCLK. |
| OSC_SEL | Mode selection input | Pulled to VCC for 50-MHz mode (24.576-MHz SCLK), grounded for 100-MHz mode (49.152-MHz SCLK). |
| N_OEB_D | External driver enable | Active-low signal enabling external drivers for TDATA/TSTRB; critical for backplane signal integrity control. |
Key Features
| Feature | Design Value |
|---|---|
| Data-Strobe Encoding | Integrated encode/decode logic eliminates need for external serializer/deserializer in 1394 backplane designs. |
| Arbitration Support | Internal arbitration logic with ARB_CLK output enables deterministic bus access in multi-node backplanes. |
| Configurable Priority/ID | External priority (EX_PRI[0–3]) and node ID (EX_ID[0–5]) inputs allow flexible topology assignment without firmware update. |
| Backplane-Centric PHY | Designed exclusively for backplane use - not cable-oriented - with no integrated line drivers or termination. |
| Test & Debug Control | PTEST_INDRV and PHYENA pins enable selective driver disable for boundary-scan and functional validation. |
Applications
| Industrial Backplane Interconnect | High-Speed Data Acquisition Systems |
|---|---|
|
Use Scenario: Multi-slot chassis with distributed instrumentation modules exchanging time-critical sensor data over a shared backplane. IC Role / Device Role / Timing Role: Physical-layer transceiver managing 100-Mbits/s data-strobe transmission between slot-mounted controllers and central processing unit. Use Value: Enables deterministic arbitration and low-jitter clock recovery essential for synchronized sampling across 16+ channels at 1 MS/s. |
Use Scenario: Modular test equipment where FPGA-based digitizers communicate real-time waveform buffers to host processors via backplane. IC Role / Device Role / Timing Role: PHY interface bridging link-layer controller to custom BTL transceivers, providing SCLK-synchronized 25/50 MHz parallel data handoff. Use Value: Eliminates external clock domain crossing logic by delivering phase-aligned SCLK/TSCLK to FPGA fabric for precise data capture alignment. |
| Avionics Data Concentrators | Medical Imaging Subsystems |
|
Use Scenario: Ruggedized flight control computer aggregating sensor telemetry from multiple LRUs using deterministic backplane bus. IC Role / Device Role / Timing Role: IEEE 1394-compliant PHY handling priority-encoded arbitration and physical ID assignment for fault-tolerant node discovery. Use Value: Supports ENA_PRI and EN_EXPRI configuration for MIL-STD-1553B-style priority resolution during bus reset recovery sequences. |
Use Scenario: MRI subsystem where gradient controller boards exchange calibration and pulse sequence data over radiation-hardened backplane. IC Role / Device Role / Timing Role: Low-noise 5-V transceiver interfacing with TI TSB12C01A link controller, operating in S50 mode for EMI-controlled 50-Mbits/s transfers. Use Value: Resynchronization of inbound RDATA/RSTRB ensures sub-ns jitter tolerance required for RF pulse timing accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar IEEE 1394 physical-layer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSB14C01AIPM | Same die, extended temperature range (–40°C to 85°C); identical pinout and electrical specs. | Required for automotive or extended-industrial deployments where ambient exceeds 70°C. | Select TSB14C01AIPM when operating environment exceeds 70°C but PCB layout and firmware must remain unchanged. |
| TSB14C02APM | Successor device with enhanced ESD rating (±8 kV HBM), improved jitter performance, and updated register map. | Supports newer 1394a features including cycle-start packet and plug-and-play node enumeration. | Choose TSB14C02APM for new designs requiring higher reliability or compatibility with 1394a-compliant link controllers. |
Compared with TSB14C01AIPM, the TSB14C01APM offers identical functionality at lower cost for commercial-temperature applications; versus TSB14C02APM, it lacks 1394a extensions and has lower ESD immunity, making it suitable only for legacy or cost-sensitive backplane systems where full 1394a compliance is unnecessary.
Availability
TSB14C01APM is available at Aetrix Electronics and suitable for industrial backplane interconnect, high-speed data acquisition systems, and avionics data concentrators requiring stable component supply and long-term obsolescence management.
Supply support for TSB14C01APM 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 leader specializing in analog, embedded processing, and connectivity solutions with over 50 years of innovation in industrial and aerospace-grade components.
The TSB14C01APM belongs to TI's IEEE 1394 physical-layer product line, designed specifically for deterministic, high-reliability backplane serial interconnects in harsh-environment systems where cable-based FireWire is unsuitable.
FAQ
What is the primary function of the TSB14C01APM in a 1394 backplane system?
The TSB14C01APM serves as the physical-layer (PHY) transceiver in IEEE 1394-1995 backplane networks. It handles data-strobe encoding/decoding, arbitration clock generation, and parallel 25/50 MHz interface to a link-layer controller like the TSB12C01A. The TSB14C01APM does not drive the backplane directly - external BTL/GTL drivers are required - and is optimized for deterministic multi-node arbitration in industrial chassis environments.
Does the TSB14C01APM support both 50 Mbits/s and 100 Mbits/s operation?
Yes, the TSB14C01APM supports both S50 (50 Mbits/s) and S100 (100 Mbits/s) modes. Mode selection is controlled by the OSC_SEL pin: pulled high for S50 (24.576-MHz SCLK), grounded for S100 (49.152-MHz SCLK). The device accepts either a 49.152-MHz (S50) or 98.304-MHz (S100) external oscillator on XI_50 or XI_100, respectively, and internally divides to generate required clocks for TSB14C01APM operation.
What external components are required to use the TSB14C01APM in a working system?
The TSB14C01APM requires three key external components: (1) a 49.152-MHz or 98.304-MHz crystal oscillator connected to XI_50 or XI_100; (2) external BTL or GTL line drivers for TDATA/TSTRB to interface with the backplane; and (3) a compatible IEEE 1394 link-layer controller (e.g., TSB12C01A) connected via D0/D1, CTL0/CTL1, SCLK, and LREQ. No internal voltage regulation or termination is provided in the TSB14C01APM.
How is physical node identification configured on the TSB14C01APM?
Physical node ID on the TSB14C01APM is configured via six TTL inputs: EX_ID5 through EX_ID0. When EN_EXID is asserted high, the node ID is set externally by these pins (EX_ID0 = MSB). If EN_EXID is low, the ID is sourced from the internal 6-bit ID register. Default power-up ID is zero. This allows static topology definition without software intervention - a key requirement for boot-time deterministic backplane initialization in the TSB14C01APM.
Can the TSB14C01APM operate without connecting the ARB_CLK or PHYENA pins?
Yes - ARB_CLK and PHYENA are test/debug signals not used in normal operation. ARB_CLK is a 49.152-MHz arbitration clock output intended for scope monitoring; PHYENA controls drivers for CTL0/CTL1/D0/D1 and is disabled during standard use. Both pins should be left unconnected or tied per datasheet guidance (PTEST_INDRV = VCC to disable drivers). Their absence does not affect core TSB14C01APM functionality in production systems.
TSB14C01APM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Programmable:
- Not Verified
- Protocol:
- IEEE 1394
- Function:
- Link Layer Controller
- Interface:
- Parallel
- Standards:
- IEEE 1394-1995
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 64-LQFP (10x10)
- Grade:
- -
- Qualification:
- -
TSB14C01APM FAQ
1.How can I place an order for TSB14C01APM through Aetrix?
Please submit a Request for Quotation (RFQ) for TSB14C01APM 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 TSB14C01APM reliable?
The price and inventory of TSB14C01APM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSB14C01APM is usually 5 days.
3.What payment methods are accepted for TSB14C01APM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSB14C01APM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSB14C01APM?
TSB14C01APM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSB14C01APM 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 TSB14C01APM?
For technical support, including TSB14C01APM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSB14C01APM requirements.
6.How does Aetrix verify that TSB14C01APM is sourced from the original manufacturer or authorized distributors?
All TSB14C01APM 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 TSB14C01APM meets industry standards.
7.What is the process for return or replacement of TSB14C01APM?
All TSB14C01APM units undergo pre-shipment inspection (PSI). If there is an issue with TSB14C01APM, 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 TSB14C01APM part is unused and in its original packaging.
Return procedure for TSB14C01APM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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