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Texas Instruments 5962-88737012A
- Part No.:
- 5962-88737012A
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
5962-88737012A.pdf
- Description:
- SN54ALS1245A OCTAL BUS TRANSCEIV
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Product details
Overview
5962-88737012A from Texas Instruments is a military-grade octal bus transceiver with 3-state outputs, designed for asynchronous bidirectional data transfer between A and B buses in high-reliability systems. It features direction control (DIR), output enable (OE), operates over –55°C to 125°C, supports ±12 mA output drive, and uses ceramic LCCC (FK) 20-pin packaging for ruggedized embedded avionics and defense computing.
For engineers reviewing the 5962-88737012A datasheet, 5962-88737012A pinout, 5962-88737012A application, or 5962-88737012A equivalent, this device is selected for MIL-STD-883-compliant bus isolation, deterministic propagation delay (≤19 ns), and dual-bus signal routing in radiation-tolerant digital subsystems where temperature stability and latch-up immunity are critical.
Technical Context
The 5962-88737012A implements TTL-compatible ALS logic with true bidirectional data flow controlled by DIR and OE inputs. Its internal architecture enables simultaneous A→B or B→A transmission without bus contention, and its 3-state outputs provide high-impedance isolation when OE is high.
It meets QML-38534 Class V requirements for military applications, with absolute maximum ratings including 7 V supply voltage and –65°C to 150°C storage range. Electrical characteristics are fully characterized across –55°C to 125°C, with VOH ≥2.4 V at IOH = –12 mA and VOL ≤0.4 V at IOL = 8 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ALS (Advanced Low-Power Schottky) - ensures low power consumption while maintaining TTL-compatible voltage thresholds and noise margins. |
| Operating Temperature | –55°C to 125°C - qualified for full military temperature range per MIL-PRF-38534, enabling use in airborne, space, and ground vehicle electronics. |
| Supply Voltage | 4.5 V to 5.5 V - stable operation across wide input tolerance, compatible with regulated 5 V military power rails. |
| Propagation Delay | tPLH/tPHL ≤19 ns - guarantees predictable timing in synchronous bus arbitration and backplane communication. |
| Output Drive | IOH = –12 mA / IOL = 8 mA - sufficient sink/source capability to drive multiple TTL loads without external buffering. |
| Package Type | LCCC-20 (FK) - hermetically sealed ceramic package with leadless construction, offering superior thermal cycling resistance and moisture immunity. |
| 3-State Enable Time | tPZH/tPZL ≤30 ns - fast output disable/enable transition supports dynamic bus sharing in time-critical multiprocessor systems. |
Pinout & Package
Ceramic Leadless Chip Carrier (LCCC), FK package, 20-terminal square body with J-lead configuration, compliant with MIL-STD-883 method 2011. Pin 1 marked by laser scribe or notch orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DIR | Direction control input: LOW enables B→A data flow; HIGH enables A→B data flow. |
| 2–9 | A1–A8 | Bus A data I/O terminals - connect to local processor or memory data bus. |
| 10 | GND | Ground reference for all logic and power domains. |
| 11–18 | B1–B8 | Bus B data I/O terminals - interface with peripheral, backplane, or secondary controller bus. |
| 19 | OE | Output enable input: LOW activates transceiver; HIGH places all A/B pins in high-impedance state. |
| 20 | VCC | +5 V power supply input - requires local decoupling capacitor per MIL-STD-883 requirement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Data Flow | Single DIR pin selects A→B or B→A path without external logic, reducing PCB routing complexity in dual-bus architectures. |
| Full Military Temp Range | Characterized from –55°C to 125°C with guaranteed parametric limits, eliminating need for derating in extreme environmental deployments. |
| 3-State Output Isolation | OE-controlled high-impedance mode prevents bus contention during system reset, hot-swap, or fault recovery sequences. |
| ALS Logic Performance | Combines 19 ns max propagation delay with 25 mA typical ICC (outputs disabled), optimizing speed-power trade-off for legacy TTL-based systems. |
| LCCC Hermetic Packaging | FK package provides zero moisture ingress, >1000 thermal cycles reliability, and compatibility with MIL-STD-883 screening protocols. |
Applications
| Avionics Data Bus Interface | Tactical Vehicle Control System |
|---|---|
|
Use Scenario: Interfacing mission computer data bus with sensor acquisition module in fighter aircraft flight control system. IC Role / Device Role / Timing Role: Bidirectional bus transceiver isolating ARINC 429-compatible logic-level buses while preserving signal integrity under EMI stress. Use Value: Enables deterministic 19 ns propagation delay and –55°C to 125°C operation required for real-time actuator command validation and feedback loop closure. |
Use Scenario: Connecting vehicle management unit (VMU) to distributed I/O nodes across armored platform chassis wiring harness. IC Role / Device Role / Timing Role: Octal bus buffer managing parallel status/control signals between VMU and engine, brake, and comms subsystems. Use Value: Provides 3-state isolation during node reconfiguration and meets MIL-STD-1275B voltage surge immunity via robust VIH/VIL thresholds and clamping behavior. |
| Secure Communication Crypto Module | Radiation-Hardened Ground Station Controller |
|
Use Scenario: Enabling secure key exchange between cryptographic processor and secure memory in NSA-certified COMSEC equipment. IC Role / Device Role / Timing Role: Direction-controlled data bridge ensuring no unintended leakage between encryption engine and non-volatile key store. Use Value: DIR and OE inputs allow hardware-enforced unidirectional write-only or read-only modes, satisfying FIPS 140-2 physical security requirements. |
Use Scenario: Supporting telemetry downlink processing in satellite ground station rack-mounted controllers exposed to terrestrial radiation. IC Role / Device Role / Timing Role: High-reliability bus repeater linking FPGA-based frame synchronizer to legacy RS-422 interface cards. Use Value: LCCC packaging and ALS process deliver single-event latch-up immunity and >10⁶ hour MTBF under neutron flux exposure per MIL-HDBK-217F. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 5962-8873701RA | Ceramic DIP (J) package instead of LCCC (FK); identical electrical specs and temperature range. | Through-hole mounting suitable for legacy board assembly and manual repair; larger footprint and lower thermal conductivity than FK. | Select 5962-8873701RA when board-level repairability, hand-soldering, or compatibility with existing DIP sockets is required. |
| SN74ALS1245AN | Commercial temperature range (0°C to 70°C); plastic DIP (N) package; same logic function and pinout. | Not qualified for military environments; lacks MIL-STD-883 screening and hermetic sealing. | Select SN74ALS1245AN only for non-critical lab prototypes or cost-sensitive industrial controls where extended temperature and reliability are not mandated. |
Compared with 5962-88737012A, 5962-8873701RA offers identical performance in a through-hole format ideal for field-serviceable systems, while SN74ALS1245AN provides functional equivalence at lower cost for benign commercial environments - neither is pin-compatible without layout adaptation due to differing package footprints.
Availability
5962-88737012A is available at Aetrix Electronics and suitable for avionics data bus interface, tactical vehicle control system, and secure communication crypto module applications requiring stable component supply, long-term obsolescence mitigation, and MIL-qualified sourcing traceability.
Supply support for 5962-88737012A 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 manufacturer founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.
The 5962-88737012A belongs to TI's military logic family derived from the ALS1245 series, engineered specifically for deterministic bidirectional bus interfacing in safety-critical systems where radiation tolerance, thermal resilience, and long-term supply assurance are mandatory.
FAQ
What is the operating temperature range specified for the 5962-88737012A?
5962-88737012A is characterized for continuous operation from –55°C to 125°C, meeting full military temperature range requirements per MIL-PRF-38534 Class V. This specification is verified across all electrical parameters including propagation delay, output drive, and input thresholds, making it suitable for deployment in jet engine bays, missile guidance sections, and space-qualified payloads.
Does the 5962-88737012A support bidirectional data transfer without external logic?
Yes, the 5962-88737012A supports true bidirectional data transfer using only the DIR input pin: when DIR is LOW, data flows from B bus to A bus; when DIR is HIGH, data flows from A bus to B bus. No additional gates or control sequencing are needed, simplifying design of dual-bus arbitration in systems such as radar signal processors and flight control computers.
What package type is used for the 5962-88737012A and why is it significant?
5962-88737012A uses a 20-pin ceramic Leadless Chip Carrier (LCCC or FK package), which provides hermetic sealing, zero moisture permeability, and superior thermal cycling endurance. This package is essential for compliance with MIL-STD-883 screening and enables reliable operation in high-vibration, high-humidity, and radiation-exposed environments typical of defense electronics.
How does the 3-state output functionality of the 5962-88737012A improve system reliability?
The 5962-88737012A uses the OE (output enable) input to place all A and B port pins into high-impedance state when asserted HIGH. This prevents bus contention during power-up/down, hot-swap events, or fault conditions - a critical feature in redundant avionics architectures where multiple transceivers share common backplane traces without risk of short-circuit damage.
Is the 5962-88737012A pin-compatible with other members of the ALS1245 family?
Yes, the 5962-88737012A shares identical pinout and logic function with SN54ALS1245A and SNJ54ALS1245AFK variants. All devices use the same LCCC-20 (FK) footprint and terminal assignment, allowing direct substitution within qualified military designs provided packaging and screening requirements align with program specifications.
5962-88737012A 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:
- -
5962-88737012A FAQ
1.How can I place an order for 5962-88737012A through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-88737012A 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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The price and inventory of 5962-88737012A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-88737012A is usually 5 days.
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Once your 5962-88737012A 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 5962-88737012A?
For technical support, including 5962-88737012A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-88737012A requirements.
6.How does Aetrix verify that 5962-88737012A is sourced from the original manufacturer or authorized distributors?
All 5962-88737012A 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 5962-88737012A meets industry standards.
7.What is the process for return or replacement of 5962-88737012A?
All 5962-88737012A units undergo pre-shipment inspection (PSI). If there is an issue with 5962-88737012A, 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 5962-88737012A part is unused and in its original packaging.
Return procedure for 5962-88737012A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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