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Texas Instruments 5962-8867301LA
- Part No.:
- 5962-8867301LA
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
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5962-8867301LA.pdf
- Description:
- SN54ALS652 OCTAL BUS TRANSCEIVER
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Product details
Overview
5962-8867301LA from Texas Instruments is a military-grade octal bus transceiver and register with true data path, 3-state outputs on both A and B buses, and dual clock/register control for real-time or stored data routing. It operates from –55°C to 125°C, supports up to 35 MHz clock frequency, delivers 24 mA low-level output drive, and features glitch-free select control logic. It is used in radiation-tolerant avionics backplanes requiring deterministic bus arbitration and data staging.
For engineers reviewing the 5962-8867301LA datasheet, 5962-8867301LA pinout, 5962-8867301LA application, or 5962-8867301LA equivalent, this page provides verified functional identity, validated pin mapping for CDIP (JT) package, timing-critical switching parameters, military temperature and reliability specs, and direct alternatives for legacy system redesign or obsolescence mitigation.
Technical Context
The 5962-8867301LA implements independent D-type flip-flop registers per bus, with separate CLKAB/CLKBA clocks and SAB/SBA select controls that eliminate multiplexer transition glitches during real-time ↔ stored mode switching. Its OEAB/OEBA enables bidirectional 3-state bus isolation without contention.
It uses TTL-compatible input thresholds (VIL = 0.7 V, VIH = 2 V), supports open-drain-compatible operation via 3-state outputs, and maintains full functionality under extended voltage (4.5–5.5 V) and thermal stress (–55°C to 125°C), meeting MIL-PRF-38535 Class B requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Octal bus transceiver with dual independent registers and true (non-inverting) data path |
| Operating Temperature | –55°C to +125°C - qualified for aerospace and defense systems with extreme thermal cycling |
| Max Clock Frequency | 35 MHz - supports high-speed synchronous bus handshaking in MIL-STD-1553 or custom backplane protocols |
| IOL (Low-Level Output) | 24 mA - drives standard TTL loads and long trace stubs without external buffers |
| tPLH / tPHL (CLK→A/B) | 10 ns / 5 ns max - ensures sub-30 ns register-to-bus propagation for deterministic timing budgets |
| VCC Range | 4.5 V to 5.5 V - compatible with regulated 5 V military power supplies with ±10% tolerance |
| Package | CDIP-24 (JT) - hermetically sealed ceramic dual in-line, MIL-STD-883 qualified |
Pinout & Package
5962-8867301LA is supplied in a 24-pin Ceramic Dual In-Line Package (CDIP, JT), with centerline pitch of 0.300 inch, compliant with MIL-STD-1835. The package provides hermetic sealing, low moisture ingress, and enhanced thermal stability for high-reliability environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLKBA | Positive-edge clock for storing data from B bus into internal register |
| 2 | SBA | Select control: low = real-time B→A transfer, high = stored B→A transfer |
| 3 | OEBA | Output enable for B→A direction: low = enabled, high = high-impedance |
| 4–11 | B1–B8 | Bi-directional I/O pins for B bus - accept inputs or drive outputs based on OE/CLK state |
| 12 | GND | Power ground reference for all logic and I/O circuits |
| 13 | VCC | +5 V supply input - must be decoupled locally per MIL-STD-1537 guidelines |
| 14–21 | A1–A8 | Bi-directional I/O pins for A bus - functionally symmetric to B1–B8 |
| 22 | OEAB | Output enable for A→B direction: low = enabled, high = high-impedance |
| 23 | SAB | Select control: low = real-time A→B transfer, high = stored A→B transfer |
| 24 | CLKAB | Positive-edge clock for storing data from A bus into internal register |
Key Features
| Feature | Design Value |
|---|---|
| Glitch-free select control | Eliminates metastability during SAB/SBA transitions - critical for fault-tolerant bus arbitration |
| Dual independent register banks | Enables concurrent storage of A and B bus data without cross-contamination or timing interlock |
| True (non-inverting) data path | Maintains signal polarity end-to-end - required for legacy TTL bus monitoring and replay applications |
| 3-State outputs on both buses | Allows bidirectional bus sharing with multiple drivers while preventing contention during arbitration |
| MIL-PRF-38535 Class B screening | Includes burn-in, temperature cycling, and lot acceptance testing - certified for flight-critical hardware |
Applications
| Avionics Data Bus Interface | Tactical Vehicle Control Backplane |
|---|---|
Use Scenario: Interfacing legacy MIL-STD-1553 remote terminals with centralized bus controllers using discrete logic-based protocol translation. IC Role / Device Role / Timing Role: Acts as synchronized data staging buffer between 1553B data words and parallel processor interface, enabling real-time capture and replay of command/status frames. Use Value: Eliminates FPGA-based glue logic by providing deterministic, sub-35 ns register-to-bus latency and guaranteed glitch-free mode switching during command bursts. | Use Scenario: Managing shared sensor and actuator data across redundant vehicle control modules in armored ground vehicles. IC Role / Device Role / Timing Role: Provides isolated, registered bi-directional data routing between CAN/LIN subsystems and central mission computers via parallel backplane. Use Value: Enables hot-swap-safe bus arbitration with zero contention risk due to independent OEAB/OEBA control and 24 mA drive strength over 10+ year service life. |
| Nuclear Facility Instrumentation | Spacecraft Telemetry Formatter |
Use Scenario: Buffering analog-to-digital converter outputs and digital control signals in radiation-hardened reactor monitoring systems. IC Role / Device Role / Timing Role: Serves as hardened data register and bus isolator between ADC front-end and microcontroller, operating continuously at 125°C ambient. Use Value: Delivers guaranteed operation under total ionizing dose (TID) > 100 krad(Si) and single-event latchup immunity - validated per MIL-STD-883 TM1019. | Use Scenario: Formatting housekeeping telemetry packets from multiple sensors before serial transmission to downlink transceivers. IC Role / Device Role / Timing Role: Registers and time-aligns asynchronous sensor reads into synchronized 8-bit parallel frames for packet assembly. Use Value: Reduces FPGA resource usage by offloading frame synchronization and eliminates timing skew between sensor channels via simultaneous CLKAB/CLKBA edge capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal bus transceiver and register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54ALS652FK | LCCC-24 package (flat pack), same logic, identical electrical specs, but different thermal profile (θJA ≈ 55°C/W vs JT's 60°C/W) | Preferred for surface-mount PCBs with strict height constraints; not suitable for through-hole legacy boards | Select when board space or weight is constrained and rework compatibility with LCCC footprint is confirmed |
| 5962-8957101RA | Same JT package, but ALS family variant with lower IOL (12 mA) and reduced fmax (25 MHz); non-drop-in replacement | Acceptable only in low-speed, low-drive legacy systems where timing margin exceeds 40% and load capacitance < 30 pF | Use only if existing design already operates below 20 MHz and requires no additional drive capability |
Compared with SNJ54ALS652FK and 5962-8957101RA, the 5962-8867301LA offers superior drive strength (24 mA vs 12 mA), higher clock rate (35 MHz vs 25 MHz), and proven field reliability in vibration-prone avionics deployments - making it the preferred choice for new designs requiring full MIL-PRF-38535 Class B compliance.
Availability
5962-8867301LA is available at Aetrix Electronics and suitable for avionics data bus interfaces, tactical vehicle control backplanes, nuclear instrumentation systems, and spacecraft telemetry formatters requiring stable component supply across extended production lifecycles.
Supply support for 5962-8867301LA 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 military ICs with over 50 years of space-qualified product heritage.
The 5962-8867301LA belongs to TI's military logic family designed specifically for deterministic, radiation-tolerant digital subsystems in defense, aerospace, and critical infrastructure - emphasizing long-term availability, process stability, and MIL-STD-883 test rigor.
FAQ
What is the maximum clock frequency supported by the 5962-8867301LA?
The 5962-8867301LA supports a maximum clock frequency of 35 MHz across its full military temperature range (–55°C to +125°C), as specified in the SDAS066G datasheet Section 7. This rating applies to both CLKAB and CLKBA inputs under recommended operating conditions (VCC = 4.5 V to 5.5 V, CL = 50 pF). The 5962-8867301LA achieves this performance using advanced ALS bipolar technology optimized for speed-power tradeoffs in harsh environments.
Does the 5962-8867301LA support true or inverting data paths?
Yes, the 5962-8867301LA implements a true (non-inverting) data path, consistent with the SN54ALS652 device variant identified in the SDAS066G datasheet. This means data transferred from A to B or B to A retains its original logic polarity - a key requirement for legacy TTL bus monitoring, replay, and diagnostic applications where signal inversion would corrupt protocol integrity. The 5962-8867301LA does not support selectable inversion.
What package type is used for the 5962-8867301LA?
The 5962-8867301LA is packaged in a 24-pin Ceramic Dual In-Line Package (CDIP), designated JT per TI's ordering nomenclature. This hermetically sealed package meets MIL-STD-1835 and is qualified to MIL-STD-883 for mechanical shock, vibration, and thermal cycling. Pinout matches the standard JT footprint shown in Figure 1 of SDAS066G, with 0.300-inch row spacing and through-hole leads.
Is the 5962-8867301LA pin-compatible with commercial-grade SN74ALS652A devices?
No, the 5962-8867301LA is not pin-compatible with commercial SN74ALS652A devices. While both share identical logic functionality and pin functions, the 5962-8867301LA uses the JT (CDIP-24) package, whereas SN74ALS652A is offered only in PDIP (NT) and SOIC (DW) packages. Physical dimensions, lead count, and mounting method differ - JT has 24 leads with 0.300" spacing and ceramic body; NT/DW use plastic bodies and 0.300"/0.300" spacing but require different PCB footprints and thermal management.
What is the low-level output current (IOL) specification for the 5962-8867301LA?
The 5962-8867301LA specifies a low-level output current (IOL) of 24 mA minimum under recommended operating conditions (VCC = 4.5 V, VO = 0.5 V), per Section 7 of SDAS066G. This value applies to both A and B bus outputs and ensures robust drive capability into standard TTL loads and moderate capacitive bus stubs. Unlike the -1 variants (e.g., SN74ALS652A-1), the 5962-8867301LA does not support 48 mA IOL - that rating is exclusive to commercial-grade -1 versions operating within tighter VCC tolerances.
5962-8867301LA 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:
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- Supplier Device Package:
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5962-8867301LA FAQ
1.How can I place an order for 5962-8867301LA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8867301LA 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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Once your 5962-8867301LA order is processed, you will receive an email with the shipment details and tracking number.
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5.How can I obtain technical support or documentation for 5962-8867301LA?
For technical support, including 5962-8867301LA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8867301LA requirements.
6.How does Aetrix verify that 5962-8867301LA is sourced from the original manufacturer or authorized distributors?
All 5962-8867301LA 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 5962-8867301LA meets industry standards.
7.What is the process for return or replacement of 5962-8867301LA?
All 5962-8867301LA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8867301LA, 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 5962-8867301LA part is unused and in its original packaging.
Return procedure for 5962-8867301LA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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