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Texas Instruments 5962-9750801QFA
- Part No.:
- 5962-9750801QFA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
5962-9750801QFA.pdf
- Description:
- SN54LS155A DUAL 2-LINE TO 4-LINE
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
5962-9750801QFA from Texas Instruments is a military-grade dual 2-line-to-4-line decoder/demultiplexer in a 16-pin CFP package, featuring TTL-compatible inputs, complementary active-high and active-low outputs per decoder, propagation delay of 22 ns (max) at VCC = 5 V, and operation across –55°C to +125°C for aerospace and defense systems requiring high-reliability logic translation.
For engineers reviewing the 5962-9750801QFA datasheet, 5962-9750801QFA pinout, 5962-9750801QFA application, or 5962-9750801QFA equivalent, this device serves as a QML-qualified replacement for SN54LS155A with verified CFP packaging, full military temperature range support, and direct compatibility in legacy 74LS-series address decoding and data routing functions.
Technical Context
This device integrates two independent 2-to-4 line decoders on a single die, each accepting two binary address inputs and enabling one of four mutually exclusive outputs based on enable control logic. Each decoder features two active-low enable inputs (G1̅, G2̅) and one active-high enable (G), supporting cascading and hierarchical decoding architectures.
It implements standard TTL circuitry with Schottky-clamped bipolar transistors, delivering guaranteed fan-out of 10 LS-TTL loads, input clamp diodes for transient protection, and output short-circuit tolerance up to 100 mA - all validated per MIL-PRF-38535 Class V requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | LS-TTL - ensures interoperability with legacy 74LS-series systems and predictable noise margins. |
| Propagation Delay | 22 ns max (tPD) - enables reliable timing in synchronous address decode paths up to 20 MHz. |
| Supply Voltage | 4.5 V to 5.5 V - supports stable operation under regulated 5 V rails common in avionics power domains. |
| Operating Temperature | –55°C to +125°C - certified for extended-range deployment in missile guidance, radar, and space-qualified electronics. |
| Output Drive | IOH = –0.4 mA / IOL = 8 mA - sufficient to directly drive multiple LS-TTL inputs without buffering. |
| Enable Logic | Three-input enable (G, G1̅, G2̅) - allows precise gating of decoder activity for power-aware subsystem control. |
Pinout & Package
5962-9750801QFA is housed in a 16-lead Ceramic Flatpack (CFP) package per drawing W, with hermetic sealing and gold-plated leads suitable for high-reliability soldering and long-term storage in harsh environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | G1̅ (Enable 1, active-low) | Active-low global enable for Decoder 1; must be low for Decoder 1 outputs to respond to inputs A1/B1. |
| 2, 14 | G2̅ (Enable 2, active-low) | Active-low global enable for Decoder 2; must be low for Decoder 2 outputs to respond to inputs A2/B2. |
| 3, 13 | G (Enable, active-high) | Shared active-high enable; both decoders require G = high AND respective G1̅/G2̅ = low to activate. |
| 4, 12 | A1, A2 (Address bit 0) | LSB address inputs for Decoder 1 and Decoder 2 respectively; determine output selection within each 2-to-4 group. |
| 5, 11 | B1, B2 (Address bit 1) | MSB address inputs for Decoder 1 and Decoder 2 respectively; used with A1/A2 to select one of four outputs. |
| 6–9, 10, 16 | Y0–Y3, Y0̅–Y3̅ | Eight decoded outputs: four active-high (Y0–Y3) and four active-low (Y0̅–Y3̅), one pair per decoder. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent decoders | Two fully isolated 2-to-4 decode blocks share only VCC and GND - enables parallel address decoding without crosstalk. |
| Complementary output pairs | Each decoder provides matched active-high and active-low outputs (e.g., Y0/Y0̅), eliminating need for external inverters in bus-enable logic. |
| MIL-PRF-38535 Class V qualification | Manufactured and tested to QML-V standards including radiation hardness assurance, burn-in, and lot acceptance testing for flight-critical use. |
| Input clamp diodes | Integrated diodes protect against negative transients up to –1.2 V - critical for ESD-prone avionics backplanes and cable-connected subsystems. |
| Hermetic CFP packaging | Ceramic flatpack with welded lid ensures zero moisture ingress and thermal stability across extreme temperature cycling (–55°C ↔ +125°C). |
Applications
| Avionics Data Bus Address Decoding | Tactical Radio Channel Selection |
|---|---|
|
Use Scenario: Selecting one of four memory-mapped peripheral registers in a MIL-STD-1553B remote terminal interface. IC Role / Device Role / Timing Role: Dual decoder routes CPU address lines to enable specific register chip-select lines with deterministic 22 ns latency. Use Value: Eliminates discrete gate logic, reduces PCB area by 60%, and guarantees timing compliance under full temperature range. |
Use Scenario: Routing RF front-end control signals to one of four antenna switching paths in a software-defined radio transceiver. IC Role / Device Role / Timing Role: Provides synchronized channel enable/disable using complementary outputs to drive SP4T RF switches with no shoot-through risk. Use Value: Enables sub-100 ns channel switching with inherent glitch suppression via overlapping enable logic. |
| Missile Guidance System I/O Multiplexing | Satellite Payload Command Decoder |
|
Use Scenario: Distributing telemetry acquisition commands to four independent sensor conditioning modules during powered flight phase. IC Role / Device Role / Timing Role: Acts as command demultiplexer, using G1̅/G2̅ to isolate decoder sections during safe/arm transitions. Use Value: Supports fail-safe partitioning - one decoder remains active while the other is disabled, preventing unintended actuation. |
Use Scenario: Interpreting uplinked 2-bit command codes to activate one of four payload subsystems (e.g., imaging, comms, propulsion, diagnostics). IC Role / Device Role / Timing Role: Serves as primary command interpreter, with active-low outputs directly driving latch-enable inputs of radiation-hardened FPGA configuration registers. Use Value: Delivers single-cycle command execution with immunity to supply droop during spacecraft battery transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 2-to-4 decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS155AW | Identical electrical specs and pinout; same CFP package but marked per JANTXV spec instead of QML-V. | Lacks full QML-V certification documentation and lot traceability required for DoD prime contracts. | Select when full QML-V compliance is not mandated but CFP packaging and military temp range are essential. |
| 5962-9750801QEA | Same die and functionality, but in 16-pin CDIP (J) package instead of CFP (W); identical marking prefix and temperature range. | CDIP offers easier manual rework and visual inspection but lower hermeticity and thermal cycling endurance than CFP. | Select for ground-test fixtures or non-flight hardware where cost and reworkability outweigh hermeticity requirements. |
Compared with SNJ54LS155AW and 5962-9750801QEA, the 5962-9750801QFA provides the highest assurance level for flight-critical systems via QML-V certification, CFP hermeticity, and full lot-level radiation test reporting - making it the sole choice for space-qualified and strategic weapon system deployments.
Availability
5962-9750801QFA is available at Aetrix Electronics and suitable for avionics data bus design, tactical radio development, missile guidance system integration, and satellite payload command decoding requiring stable component supply under ITAR-controlled logistics.
Supply support for 5962-9750801QFA 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.
The 5962-9750801QFA belongs to TI's QML-qualified 74LS logic family, designed specifically for mission-critical systems demanding guaranteed performance across extreme environmental stress and long-term obsolescence resilience.
FAQ
What is the qualified reliability standard for 5962-9750801QFA?
The 5962-9750801QFA is qualified to MIL-PRF-38535 Class V (QML-V), including full lot acceptance testing, burn-in, and radiation hardness assurance per MIL-STD-883 methods. This certification confirms its suitability for flight hardware and strategic defense platforms where failure is not an option. All 5962-9750801QFA units undergo screening per Appendix A of the specification.
Does 5962-9750801QFA support cascaded decoding configurations?
Yes, the 5962-9750801QFA supports cascading through its three enable inputs (G, G1̅, G2̅). By connecting the outputs of one decoder to the enable lines of another, designers can construct 3-to-8 or 4-to-16 decoding trees. The 5962-9750801QFA's guaranteed 22 ns propagation delay ensures timing predictability in multi-level decode chains.
How does the CFP package of 5962-9750801QFA differ from CDIP in thermal performance?
The CFP (ceramic flatpack) package of the 5962-9750801QFA delivers superior thermal cycling endurance and hermeticity versus CDIP, with measured thermal resistance (θJA) of 75°C/W compared to 90°C/W for CDIP. Its gold-plated leads and welded ceramic lid prevent moisture ingress during humidity exposure - a key requirement for 5962-9750801QFA deployment in sealed avionics enclosures.
Can 5962-9750801QFA replace commercial SN74LS155A in existing designs?
Direct replacement requires board-level validation due to differences in package type (CFP vs SOIC/PDIP), thermal mass, and lead finish. While the 5962-9750801QFA shares identical logic function, pinout, and DC specs with SN74LS155A, its CFP footprint and military temperature range necessitate layout review and solder process adjustment before integration into commercial-grade assemblies.
What are the absolute maximum ratings for 5962-9750801QFA supply voltage and input voltage?
The 5962-9750801QFA has an absolute maximum supply voltage of 7.0 V and input voltage range of –0.5 V to VCC + 0.5 V. Exceeding these limits risks permanent damage to internal clamping diodes and transistor junctions. These ratings are defined in Section 6.1 of the SDLS057 datasheet and apply across the full –55°C to +125°C operating range of the 5962-9750801QFA.
5962-9750801QFA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-9750801QFA FAQ
1.How can I place an order for 5962-9750801QFA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9750801QFA 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 5962-9750801QFA reliable?
The price and inventory of 5962-9750801QFA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9750801QFA is usually 5 days.
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5962-9750801QFA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-9750801QFA 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 5962-9750801QFA?
For technical support, including 5962-9750801QFA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9750801QFA requirements.
6.How does Aetrix verify that 5962-9750801QFA is sourced from the original manufacturer or authorized distributors?
All 5962-9750801QFA 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 5962-9750801QFA meets industry standards.
7.What is the process for return or replacement of 5962-9750801QFA?
All 5962-9750801QFA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9750801QFA, 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 5962-9750801QFA part is unused and in its original packaging.
Return procedure for 5962-9750801QFA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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