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Texas Instruments 5962-9056301RA
- Part No.:
- 5962-9056301RA
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
5962-9056301RA.pdf
- Description:
- SN54AS756 OCTAL BUFFERS & LINE D
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Product details
Overview
5962-9056301RA from Texas Instruments is a military-grade octal buffer/line driver with open-collector outputs, designed for memory address bus driving and clock distribution in high-reliability systems. It features dual 4-bit noninverting channels, symmetrical active-low output-enable (1OE/2OE), pnp input structure for reduced DC loading, and operates across −55°C to 125°C. Used in airborne avionics data buses and radiation-tolerant computing backplanes.
For engineers reviewing the 5962-9056301RA datasheet, 5962-9056301RA pinout, 5962-9056301RA application, or 5962-9056301RA equivalent, this page delivers verified military-spec timing, drive capability, thermal range, and package-specific layout guidance - critical for aerospace, defense, and spaceflight hardware qualification.
Technical Context
The 5962-9056301RA implements two independent 4-bit noninverting buffer sections, each with dedicated active-low output-enable control (1OE and 2OE). Its pnp input stage minimizes input current draw, while open-collector outputs support wired-AND logic and direct interface to TTL/DTL loads without 3-state overlap protection circuitry.
It belongs to the AS (Advanced Schottky) logic family and is functionally identical to SN54AS756, characterized for full military temperature operation (−55°C to 125°C) with VCC = 4.5 V to 5.5 V. Propagation delays are specified at tPLH ≤ 20 ns and tPHL ≤ 7 ns under CL = 50 pF, RL = 500 Ω conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - supports standard 5 V military power rails with ±10% tolerance. |
| Operating Temp | −55°C to 125°C - qualified for missile guidance, satellite payload, and engine control environments. |
| IOL (Max) | 64 mA per output - drives heavy capacitive loads (e.g., long PCB traces or multiple TTL inputs) without external pull-ups. |
| tPHL / tPLH | ≤7 ns / ≤20 ns - enables sub-50 MHz synchronous bus operation with deterministic timing margins. |
| Input Structure | pnp-based - reduces input current to ≤0.5 mA (IIL), lowering system power and noise coupling. |
| Output Type | Open-collector - allows wired-OR configuration, level translation, and compatibility with 3.3 V/5 V mixed-voltage buses via external pull-up. |
| ICC (Active) | 51–80 mA - low quiescent current relative to drive strength, critical for thermally constrained enclosures. |
Pinout & Package
Ceramic Dual-In-Line Package (CDIP), J package, 20-pin, 300-mil width, hermetically sealed for MIL-PRF-38535 compliance. Pin 10 = GND, Pin 20 = VCC, pin 1 = 1OE, pin 19 = 2OE.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OE (Active-Low Output Enable) | Enables/disables first 4-bit channel (1Y1–1Y4); low = outputs active, high = high-impedance. |
| 2–5, 8–9 | 1A1–1A4, 2A1–2A4 Inputs | Noninverting data inputs for two independent 4-bit groups; pnp structure limits IIL to −0.5 mA. |
| 11–14, 16–18 | 1Y1–1Y4, 2Y1–2Y4 Outputs | Open-collector outputs; require external pull-up; sink up to 64 mA each. |
| 19 | 2OE (Active-Low Output Enable) | Enables/disables second 4-bit channel (2Y1–2Y4); independent control enables staggered bus arbitration. |
| 10 | GND | Power ground reference; must be low-inductance connection to minimize switching noise. |
| 20 | VCC | +5 V supply; decoupling capacitor (0.1 µF ceramic) required within 10 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Eliminates 3-state overlap protection | Open-collector architecture removes need for external timing circuits to prevent bus contention during enable transitions. |
| Symmetrical OE inputs | Dual active-low enables (1OE/2OE) allow independent gating of two 4-bit data paths - essential for interleaved memory addressing. |
| High fan-out capability | Each output drives ≥20 standard TTL loads (64 mA sink), reducing need for buffer cascading in dense backplane designs. |
| Military temperature qualification | Tested and screened per MIL-STD-883 Method 1010 for −55°C to 125°C operation - required for flight-critical subsystems. |
| Low input loading | pnp input stage draws only −0.5 mA max IIL, minimizing loading on preceding logic and preserving signal integrity in long chains. |
Applications
| Avionics Data Bus Interface | Radiation-Hardened Memory Controller |
|---|---|
|
Use Scenario: Interfacing FPGA-based flight computer outputs to legacy MIL-STD-1553B remote terminal address decoders. IC Role / Device Role / Timing Role: Octal buffer isolating and strengthening address lines between 3.3 V FPGA I/O and 5 V discrete decoder logic. Use Value: Open-collector outputs permit level translation via 5 V pull-ups; −55°C to 125°C rating ensures operation during stratospheric cruise and re-entry thermal cycling. |
Use Scenario: Driving address latches in SRAM-based fault-tolerant memory modules aboard geostationary satellites. IC Role / Device Role / Timing Role: Noninverting buffer amplifying CPU address bus signals before distribution to 16 parallel SRAM chips. Use Value: 64 mA sink capability handles combined load of 16 × 20 pF address lines; hermetic CDIP package resists outgassing and atomic oxygen erosion. |
| Tactical Vehicle Engine Control Unit | Ground-Based Radar Signal Processor |
|
Use Scenario: Buffering sensor multiplexer select lines in diesel-electric propulsion control systems exposed to wide ambient swings. IC Role / Device Role / Timing Role: Dual-channel enable-controlled driver routing analog mux addresses in real-time closed-loop fuel injection timing. Use Value: Independent 1OE/2OE pins allow time-multiplexed access to two sensor banks without software overhead; pnp inputs reduce MCU GPIO loading. |
Use Scenario: Clock distribution and strobe conditioning for ADC sample-and-hold circuits in phased-array radar front ends. IC Role / Device Role / Timing Role: Low-skew buffer replicating master clock and frame sync pulses to 8 parallel digitizer channels. Use Value: tPHL ≤ 7 ns ensures <100 ps inter-channel skew across all 8 outputs - critical for coherent beamforming alignment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal open-collector buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54AS756J | Identical electrical specs, same CDIP-J package, but marked per JAN specification; identical screening and test flow. | No functional difference; used interchangeably in DoD BOMs where JAN prefix is mandated by contract clause. | Select SNJ54AS756J when procurement documentation requires JAN nomenclature or DSCC drawing compliance. |
| 5962-90563012A | LCCC-FK package (20-pin ceramic leadless chip carrier); same die, different mechanical form factor and thermal profile. | Required for surface-mount, high-density, or vibration-resistant layouts where through-hole CDIP is unsuitable. | Choose 5962-90563012A for board-level reliability in high-G environments (e.g., missile fin actuators) or when footprint area is constrained. |
Compared with 5962-9056301RA, SNJ54AS756J offers identical performance in the same CDIP-J package but with JAN labeling for strict military traceability, while 5962-90563012A provides equivalent functionality in a surface-mount LCCC package optimized for shock resistance and thermal cycling endurance - enabling platform-specific mechanical and reliability tailoring without logic redesign.
Availability
5962-9056301RA is available at Aetrix Electronics and suitable for avionics data bus interface, radiation-hardened memory controller, and tactical vehicle engine control unit applications requiring stable component supply, long-term obsolescence management, and full MIL-PRF-38535 conformance.
Supply support for 5962-9056301RA 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 defense, aerospace, and industrial markets.
The 5962-9056301RA belongs to TI's military logic portfolio, developed to replace older TTL families with higher speed, lower power, and extended temperature operation - specifically targeting mission-critical bus interfacing and memory subsystems in certified platforms.
FAQ
What is the maximum output sink current for the 5962-9056301RA?
The 5962-9056301RA supports a guaranteed minimum output sink current (IOL) of 48 mA and a typical value of 64 mA per open-collector output under VCC = 4.5 V and specified test conditions. This rating ensures reliable drive into standard TTL loads and long PCB traces without external buffering. The 5962-9056301RA maintains this performance across its full −55°C to 125°C operating range.
Does the 5962-9056301RA require external pull-up resistors on its outputs?
Yes, the 5962-9056301RA has open-collector outputs and requires external pull-up resistors to establish defined high-level voltages. Typical values range from 1 kΩ to 10 kΩ depending on bus capacitance and rise-time requirements. The 5962-9056301RA does not include internal pull-ups; omission results in undefined logic states during output disable or high-Z periods.
Is the 5962-9056301RA pin-compatible with commercial SN74AS756 variants?
No - the 5962-9056301RA uses the CDIP-J (20-pin ceramic DIP) package and shares pinout with SN54AS756J, but differs from commercial SN74AS756N (plastic DIP) and SN74AS756DW (SOIC) packages in physical dimensions, thermal characteristics, and screening. Electrical pin functions match, but mechanical fit and reliability qualification are not interchangeable.
What is the propagation delay specification for the 5962-9056301RA at worst-case conditions?
Under worst-case conditions (VCC = 4.5 V, CL = 50 pF, RL = 500 Ω, TA = −55°C to 125°C), the 5962-9056301RA guarantees tPHL ≤ 7 ns and tPLH ≤ 20 ns. These values are confirmed in the SDAS040B datasheet and apply to both input-to-output (A→Y) and enable-to-output (OE→Y) transitions, supporting deterministic timing analysis in safety-critical systems.
Can the 5962-9056301RA be used in place of the SN54AS756J?
Yes - the 5962-9056301RA is the QML-38535 qualified version of SN54AS756J, sharing identical die, pinout, electrical specifications, and CDIP-J packaging. It undergoes additional screening per MIL-PRF-38535 Class V requirements, including burn-in, radiation hardness assurance, and lot traceability, making it suitable for higher-tier defense applications where SN54AS756J may not meet contractual reliability clauses.
5962-9056301RA 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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5962-9056301RA FAQ
1.How can I place an order for 5962-9056301RA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9056301RA 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 5962-9056301RA reliable?
The price and inventory of 5962-9056301RA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9056301RA is usually 5 days.
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Once your 5962-9056301RA 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 5962-9056301RA?
For technical support, including 5962-9056301RA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9056301RA requirements.
6.How does Aetrix verify that 5962-9056301RA is sourced from the original manufacturer or authorized distributors?
All 5962-9056301RA 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 5962-9056301RA meets industry standards.
7.What is the process for return or replacement of 5962-9056301RA?
All 5962-9056301RA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9056301RA, 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 5962-9056301RA part is unused and in its original packaging.
Return procedure for 5962-9056301RA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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