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Texas Instruments 5962-9677401QXA
- Part No.:
- 5962-9677401QXA
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
5962-9677401QXA.pdf
- Description:
- SN54ABT162245 16-BIT BUS TRANSCE
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Inventory:220
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Product details
Overview
5962-9677401QXA from Texas Instruments is a military-grade 16-bit noninverting 3-state transceiver for synchronous bidirectional data bus communication, featuring 25-Ω integrated series resistors on A-port outputs, ±100 µA Ioff current at VCC = 0 V, and operation across −55°C to 125°C. It supports flow-through architecture for optimized PCB layout and distributed VCC/GND pins to suppress high-speed switching noise in avionics and defense computing backplanes.
For engineers reviewing the 5962-9677401QXA datasheet, 5962-9677401QXA pinout, 5962-9677401QXA application, or 5962-9677401QXA equivalent, key selection criteria include its CFP–WD ceramic dual flatpack package, MIL-PRF-38535 qualification, 48-pin DIR/OE-controlled bidirectional signal routing, and compatibility with 5-V TTL-level buses requiring latch-up immunity >500 mA per JESD 17.
Technical Context
This device implements two independent 8-bit transceiver sections (A↔B), each controlled by dedicated DIR and OE inputs, enabling simultaneous or selective bidirectional data transfer without external timing logic. Its Ioff circuitry ensures partial-power-down isolation, while integrated 25-Ω A-port series terminations eliminate need for discrete resistors and reduce overshoot/undershoot.
Designed for high-reliability systems, it meets MIL-STD-883 Class B requirements, features ESD protection exceeding 2000-V HBM and 200-V MM, and delivers propagation delays as low as 1 ns (tPLH/tPHL) under CL = 50 pF at VCC = 5 V and TA = 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - Ensures stable operation within standard 5-V TTL rail tolerances. |
| Operating Temperature | −55°C to 125°C - Qualified for extended-range military and aerospace environments. |
| Output Drive (B port) | ±64 mA (IOL/IOH) - Supports heavy capacitive loads and fan-out to multiple TTL inputs. |
| A-port Series Resistance | 25 Ω - Integrated termination reduces signal reflections without external components. |
| Ioff Current | ±100 µA at VCC = 0 V - Prevents damaging backflow during hot-insertion or partial power-down. |
| Propagation Delay | 1 ns (min), 4.6 ns (max) - Enables reliable timing in high-speed synchronous bus interfaces. |
| Latch-Up Immunity | >500 mA per JESD 17 - Guarantees robustness against transient-induced parasitic thyristor activation. |
Pinout & Package
Ceramic Dual Flatpack (CFP) package, WD outline, 48-lead, hermetically sealable per MIL-STD-1835 GDFP1-F48, with 0.025-inch lead pitch and 0.370-inch body width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per 8-bit section) | Determines data flow direction: L = B→A, H = A→B; enables independent section control. |
| 1OE, 2OE | Output enable input (per 8-bit section) | L = active transceiver, H = high-impedance isolation; supports bus arbitration and power sequencing. |
| 1A1–1A8, 2A1–2A8 | A-side data I/O terminals | Noninverting bidirectional ports with 25-Ω series resistance; source/sink up to 12 mA. |
| 1B1–1B8, 2B1–2B8 | B-side data I/O terminals | Noninverting bidirectional ports; drive capability up to ±64 mA for B-port loads. |
| VCC (pins 7, 18, 29, 40) | Power supply | Distributed VCC pins minimize IR drop and ground bounce across high-speed switching events. |
| GND (pins 4, 11, 22, 33, 44) | Ground reference | Five dedicated GND pins reduce common-impedance coupling and improve noise margin. |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pin architecture | Input and output pins aligned on opposite sides of package to simplify layer routing and reduce trace stubs. |
| Distributed VCC and GND pins | Four VCC and five GND pins placed strategically to lower power delivery impedance and suppress simultaneous switching noise. |
| Integrated 25-Ω A-port series termination | Eliminates need for 16 external resistors, reducing BOM count and PCB area while controlling edge rates. |
| Ioff partial-power-down support | Enables safe operation when VCC = 0 V, preventing reverse current flow into powered subsystems during maintenance or fault conditions. |
| Latch-up immunity >500 mA | Meets JESD 17 requirement for ruggedness in high-radiation or high-noise avionics environments. |
Applications
| Avionics Data Bus Interface | Military Vehicle Computing Backplane |
|---|---|
Use Scenario: Bidirectional data exchange between flight control processor and sensor acquisition modules over a 5-V parallel bus. IC Role / Device Role / Timing Role: 16-bit transceiver managing time-critical telemetry and command signals with sub-5 ns propagation delay and deterministic direction control. Use Value: Flow-through pinout and distributed power/ground reduce signal integrity risk in vibration-prone airframe wiring harnesses. |
Use Scenario: Interfacing mission computer with ruggedized I/O expansion cards in armored vehicle electronic architecture. IC Role / Device Role / Timing Role: Isolating and translating data between isolated bus segments using OE-controlled high-Z states during hot-swap operations. Use Value: Ioff protection prevents backfeed damage when modules are inserted/removed while system remains partially powered. |
| Tactical Radar Signal Processing Chassis | Secure Satellite Communication Terminal |
Use Scenario: Synchronizing ADC/DAC data lanes between FPGA-based processing units and RF front-end assemblies. IC Role / Device Role / Timing Role: 16-bit bidirectional buffer with DIR-selectable flow direction and tight skew control across all channels. Use Value: Matched tPLH/tPHL delays (≤0.5 ns variation) ensure deterministic setup/hold timing for multi-lane parallel sampling. |
Use Scenario: Enabling secure firmware update paths between encrypted baseband processor and radiation-hardened memory banks. IC Role / Device Role / Timing Role: Controlled bus isolation via OE during cryptographic key loading to prevent side-channel leakage through shared data lines. Use Value: Guaranteed high-Z state during power transitions eliminates unintended data coupling in TEMPEST-compliant designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bidirectional transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54ABT162245WD | Identical die, same CFP–WD package, identical electrical specs and MIL-PRF-38535 Class B qualification. | No functional difference; 5962-9677401QXA is the standardized QML-38535 part number, SNJ54ABT162245WD is TI's internal ordering variant. | Select 5962-9677401QXA for DoD contract compliance requiring formal QML listing. |
| SN54ABT162245WD | Same pinout and function but qualified to older MIL-STD-883 (not QML-38535); lacks updated screening and reliability reporting. | Suitable for legacy programs where QML-38535 certification is not mandated; may require additional qualification testing. | Choose only if existing design documentation references SN54ABT162245WD and no QML upgrade path is approved. |
Compared with SN54ABT162245WD and SNJ54ABT162245WD, the 5962-9677401QXA provides full QML-38535 Class B conformance with documented lot traceability, enhanced burn-in, and failure analysis protocols required for new U.S. DoD hardware deployments.
Availability
5962-9677401QXA is available at Aetrix Electronics and suitable for avionics data bus interface, military vehicle computing backplane, and tactical radar signal processing chassis requiring stable component supply under extended temperature and radiation-tolerant conditions.
Supply support for 5962-9677401QXA 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 delivering analog, embedded processing, and high-reliability products with deep heritage in military and space-grade component development.
The 5962-9677401QXA belongs to TI's Widebus™ family of high-speed bus interface ICs, engineered specifically for deterministic, low-noise, bidirectional data transfer in mission-critical defense and aerospace platforms.
FAQ
What is the qualification standard for 5962-9677401QXA?
The 5962-9677401QXA is fully qualified to MIL-PRF-38535 Class B, including screening per Appendix A, radiation hardness assurance, and lot traceability required for U.S. Department of Defense applications. It supersedes earlier SN54ABT162245 variants with enhanced reliability reporting and process controls. This qualification applies specifically to the 5962-9677401QXA part number and its CFP–WD packaging.
Does 5962-9677401QXA support partial-power-down operation?
Yes, the 5962-9677401QXA incorporates Ioff circuitry that limits current to ±100 µA when VCC = 0 V, enabling safe partial-power-down mode. This feature prevents damaging current backflow between powered and unpowered bus segments - a critical requirement in modular avionics systems where LRUs may be hot-swapped. The Ioff specification is verified across −55°C to 125°C.
What is the maximum output drive capability of the B-port on 5962-9677401QXA?
The B-port of the 5962-9677401QXA delivers ±64 mA output current (IOL/IOH) at VCC = 4.5 V, supporting direct interfacing with multiple TTL loads or moderate-capacitance backplanes without external buffers. This drive strength is confirmed in the "Electrical Characteristics" table of the SCBS239F datasheet and applies to all 16 B-side pins under recommended operating conditions.
How does the flow-through architecture of 5962-9677401QXA benefit PCB layout?
The 5962-9677401QXA uses a flow-through pinout where A-side inputs/outputs align on one side and B-side counterparts on the opposite side, enabling straight-line trace routing without layer jumps or vias between transceiver sections. This reduces signal stubs, crosstalk, and impedance discontinuities - especially valuable in high-density, high-reliability military PCBs where routing density and SI integrity are constrained.
Is 5962-9677401QXA pin-compatible with commercial-grade SN74ABT162245 packages?
No - the 5962-9677401QXA uses the CFP–WD ceramic dual flatpack package (48-lead, 0.025″ pitch), whereas commercial SN74ABT162245 variants use SSOP (DL) or TSSOP (DGG) plastic packages. While logic function and pin functions match, mechanical dimensions, thermal characteristics, and soldering profiles differ significantly. Direct PCB replacement is not possible without board redesign.
5962-9677401QXA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-9677401QXA FAQ
1.How can I place an order for 5962-9677401QXA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9677401QXA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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6.How does Aetrix verify that 5962-9677401QXA is sourced from the original manufacturer or authorized distributors?
All 5962-9677401QXA 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 5962-9677401QXA meets industry standards.
7.What is the process for return or replacement of 5962-9677401QXA?
All 5962-9677401QXA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9677401QXA, 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 5962-9677401QXA part is unused and in its original packaging.
Return procedure for 5962-9677401QXA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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