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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Texas Instruments 5962-9755901QRA

Name: 5962-9755901QRA
Brand: Texas Instruments
SKU: 5962-9755901QRA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5962-9755901QRA

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: -

Datasheet:: 5962-9755901QRA.pdf

Description:: SN54AS244A OCTAL BUFFERS AND LIN

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Product details

Overview

5962-9755901QRA from Texas Instruments is a military-grade octal buffer and line driver with 3-state outputs, designed for memory address bus driving and clock distribution in high-reliability systems. It features dual 4-bit non-inverting channels, ±48 mA low-level output drive (IOL), operation over –55°C to 125°C, and CDIP (J) 20-pin ceramic package.

For engineers reviewing the 5962-9755901QRA datasheet, 5962-9755901QRA pinout, 5962-9755901QRA application, or 5962-9755901QRA equivalent, this device serves as a drop-in replacement for SN54AS244A in legacy aerospace and defense hardware requiring MIL-PRF-38535 Class Q qualification, deterministic 3-state enable timing, and radiation-tolerant bus interfacing.

Technical Context

The 5962-9755901QRA implements two independent 4-bit non-inverting buffer sections, each controlled by a dedicated active-low 3-state output-enable (OE) input. Its AS logic family delivers fast propagation delays (tPLH/tPHL ≤ 9 ns at VCC = 5 V, CL = 50 pF) and robust noise immunity via TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V).

It operates strictly within 4.5 V–5.5 V supply range and supports full military temperature cycling without derating. The device uses bipolar transistor technology with pnp input stages to minimize DC loading on upstream drivers-critical for fanout-limited address buses in avionics and missile guidance subsystems.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	4.5 V to 5.5 V - Ensures compatibility with legacy 5 V military power rails and tolerance to voltage transients in harsh environments.
IOL (max)	48 mA - Enables direct drive of unterminated 50 Ω transmission lines or multiple TTL inputs without external buffers.
tPLH / tPHL	≤ 9 ns - Guarantees sub-10 ns signal path delay for high-speed address latching in real-time control loops.
Operating Temp	–55°C to 125°C - Qualified per MIL-STD-883 for use in uncontrolled ambient environments including engine bays and space launch platforms.
Output Type	3-State (active-low OE) - Allows bidirectional bus sharing and prevents contention during system reset or mode switching.
Input Compatibility	TTL - Interfaces directly with legacy 74-series logic, microprocessor address/data buses, and discrete gate arrays without level-shifting.
Package	CDIP (J), 20-pin, ceramic - Provides hermetic sealing, thermal stability, and mechanical ruggedness required for vibration-prone military platforms.

Pinout & Package

5962-9755901QRA is housed in a 20-pin Ceramic Dual-In-Line Package (CDIP, J package), 300-mil body width, with standard DIP pin spacing (0.1 inch). Pin 1 is marked by a beveled corner or notch on the package top edge.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 4, 6, 8, 11, 13, 15, 17	Input A1–A4, B1–B4	Non-inverting data inputs for two independent 4-bit channels; TTL-compatible with pnp input structure reducing source loading.
3, 5, 7, 9, 12, 14, 16, 18	Output Y1–Y4, Z1–Z4	3-state buffered outputs; high-drive capability (48 mA sink) enables termination-free bus driving up to 10–15 cm trace lengths.
10	GND	Signal reference plane; requires low-inductance connection to system ground plane to maintain noise margin under fast switching.
20	VCC	+5 V supply; decoupling capacitor (0.1 µF ceramic + 10 µF tantalum) must be placed within 5 mm of this pin.
19, 10 (reused)	1OE, 2OE	Active-low output-enable controls for Channel A and Channel B respectively; asynchronous assertion disables all outputs to high-impedance state.

Key Features

Feature	Design Value
High-Drive 3-State Outputs	48 mA sink current supports direct interface to unterminated backplanes and legacy TTL loads without external drivers.
MIL-PRF-38535 Class Q Qualification	Full screening per Method 5005, including burn-in, temperature cycling, and lot acceptance testing-ensuring reliability in mission-critical systems.
pnp Input Structure	Reduces input current to ≤ –0.1 mA at VI = 0.4 V, minimizing loading on clock generators and microcontroller GPIO pins.
Fast Enable/Disable Timing	tPZL/tPHZ ≤ 10 ns ensures clean bus arbitration with minimal glitch risk during hot-swap or mode transitions.
Hermetic Ceramic Package	CDIP (J) construction provides moisture resistance, thermal stability (CTE matched to PCB), and EMI shielding for RF-sensitive platforms.

Applications

Avionics Data Bus Interface	Military Microprocessor Address Buffering
Use Scenario: Interfacing a radiation-hardened microprocessor's 16-bit address bus to a shared memory module in a flight control computer. IC Role / Device Role / Timing Role: Bidirectional 3-state buffer isolating CPU and memory during DMA cycles; enables concurrent access by multiple processors via OE-controlled bus arbitration. Use Value: Eliminates need for discrete bus transceivers while maintaining <10 ns propagation delay and guaranteed high-impedance isolation during reset sequences.	Use Scenario: Driving long, unterminated address traces on a missile seeker's guidance processor board operating at –40°C to +85°C (derated). IC Role / Device Role / Timing Role: Non-inverting octal buffer amplifying weak address signals from FPGA I/O banks to meet TTL fanout requirements across 15 cm PCB traces. Use Value: Delivers 48 mA sink drive to overcome trace capacitance and maintain signal integrity without added termination resistors or layout redesign.
Secure Communication Module Clock Distribution	Tactical Radio Baseband Signal Routing
Use Scenario: Distributing a 20 MHz system clock from a precision oscillator to four synchronized encryption ASICs in a COMSEC unit. IC Role / Device Role / Timing Role: Low-skew clock buffer with matched channel delays; 3-state outputs allow dynamic clock gating per ASIC during key rotation. Use Value: Achieves <±0.5 ns inter-channel skew and eliminates clock contention during cryptographic rekeying via simultaneous OE assertion.	Use Scenario: Routing analog/digital baseband signals between RF front-end ICs and DSP cores in an SDR transceiver operating in extended temperature ranges. IC Role / Device Role / Timing Role: Level-shifting and isolation buffer for mixed-signal paths; 3-state capability prevents signal leakage during RF transmit bursts. Use Value: Maintains >40 dB off-isolation in disabled state and supports 0–20 MHz baseband bandwidth without phase distortion or crosstalk degradation.

Avionics Data Bus Interface

Military Microprocessor Address Buffering

Use Scenario: Interfacing a radiation-hardened microprocessor's 16-bit address bus to a shared memory module in a flight control computer.

IC Role / Device Role / Timing Role: Bidirectional 3-state buffer isolating CPU and memory during DMA cycles; enables concurrent access by multiple processors via OE-controlled bus arbitration.

Use Value: Eliminates need for discrete bus transceivers while maintaining <10 ns propagation delay and guaranteed high-impedance isolation during reset sequences.

Use Scenario: Driving long, unterminated address traces on a missile seeker's guidance processor board operating at –40°C to +85°C (derated).

IC Role / Device Role / Timing Role: Non-inverting octal buffer amplifying weak address signals from FPGA I/O banks to meet TTL fanout requirements across 15 cm PCB traces.

Use Value: Delivers 48 mA sink drive to overcome trace capacitance and maintain signal integrity without added termination resistors or layout redesign.

Secure Communication Module Clock Distribution

Tactical Radio Baseband Signal Routing

Use Scenario: Distributing a 20 MHz system clock from a precision oscillator to four synchronized encryption ASICs in a COMSEC unit.

IC Role / Device Role / Timing Role: Low-skew clock buffer with matched channel delays; 3-state outputs allow dynamic clock gating per ASIC during key rotation.

Use Value: Achieves <±0.5 ns inter-channel skew and eliminates clock contention during cryptographic rekeying via simultaneous OE assertion.

Use Scenario: Routing analog/digital baseband signals between RF front-end ICs and DSP cores in an SDR transceiver operating in extended temperature ranges.

IC Role / Device Role / Timing Role: Level-shifting and isolation buffer for mixed-signal paths; 3-state capability prevents signal leakage during RF transmit bursts.

Use Value: Maintains >40 dB off-isolation in disabled state and supports 0–20 MHz baseband bandwidth without phase distortion or crosstalk degradation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal 3-state buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN54AS244AJ	Identical electrical specs and pinout; same CDIP-J package but not QML-38535 qualified. Lacks Class Q screening and lot traceability.	Suitable for non-mission-critical prototypes or ground-test equipment where full MIL-PRF-38535 compliance is not mandated.	Select SN54AS244AJ only when cost sensitivity outweighs formal qualification requirements and lifecycle assurance is not contractually enforced.
5962-8683901RA	ALS-family variant (SN54ALS244C); lower drive (24 mA IOL), slower speed (tPLH ≤ 16 ns), identical QML-38535 Class Q qualification and CDIP-J package.	Better suited for low-power, lower-speed legacy systems where reduced current consumption and thermal load are prioritized over timing performance.	Choose 5962-8683901RA when system timing budget allows ≥16 ns propagation delay and total system power must stay below 250 mW per device.

Compared with SN54AS244AJ and 5962-8683901RA, 5962-9755901QRA uniquely combines Class Q qualification, 48 mA drive strength, and sub-10 ns propagation-making it the sole option for new designs requiring both high-speed bus driving and full MIL-PRF-38535 compliance in flight-critical hardware.

Availability

5962-9755901QRA is available at Aetrix Electronics and suitable for avionics data bus interface, military microprocessor address buffering, secure communication module clock distribution, and tactical radio baseband signal routing requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 5962-9755901QRA 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 specializing in analog, embedded processing, and high-reliability components for aerospace, defense, and industrial markets.

The 5962-9755901QRA belongs to TI's military logic portfolio, engineered specifically for deterministic, high-fanout signal routing in safety-critical systems where qualification, longevity, and environmental resilience are non-negotiable.

FAQ

What is the maximum operating temperature range for the 5962-9755901QRA?

The 5962-9755901QRA is characterized for continuous operation from –55°C to 125°C, fully compliant with MIL-STD-883 Test Method 1010.7 temperature cycling requirements. This range is validated across all electrical parameters including propagation delay, output drive, and 3-state leakage-no derating is required at either extreme.

Does the 5962-9755901QRA support true bidirectional data flow?

No-the 5962-9755901QRA is a unidirectional octal buffer with fixed input-to-output signal direction (A→Y, B→Z). While its 3-state outputs allow bus sharing, it lacks internal direction-control logic or complementary input/output pairs required for bidirectional operation like transceivers.

Is the 5962-9755901QRA pin-compatible with commercial SN74AS244A devices?

Yes-5962-9755901QRA shares identical pinout, function table, and logic behavior with SN54AS244AJ and SN74AS244A. However, it uses a ceramic CDIP (J) package versus plastic DIP (N) or SOIC (DW), so PCB footprint and thermal design must accommodate the hermetic ceramic body and lead finish.

What is the recommended decoupling strategy for 5962-9755901QRA in high-reliability designs?

TI specifies a minimum 0.1 µF ceramic capacitor placed within 5 mm of VCC (Pin 20) and GND (Pin 10), supplemented by a 10 µF low-ESR tantalum capacitor near the power entry point. For avionics applications, MIL-PRF-32119 Class 1 capacitors with 2× voltage rating are strongly advised.

How does the 5962-9755901QRA differ from the 5962-8683901RA variant?

The 5962-9755901QRA is an AS-family device (higher speed, 48 mA IOL, 9 ns tPLH), while 5962-8683901RA is ALS-family (lower power, 24 mA IOL, 16 ns tPLH). Both are QML-38535 Class Q qualified and share CDIP-J packaging-but they are not functionally interchangeable without timing and drive-margin verification.

5962-9755901QRA 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:: -

5962-9755901QRA FAQ

1.How can I place an order for 5962-9755901QRA through Aetrix?

Please submit a Request for Quotation (RFQ) for 5962-9755901QRA 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 5962-9755901QRA reliable?

The price and inventory of 5962-9755901QRA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9755901QRA is usually 5 days.

3.What payment methods are accepted for 5962-9755901QRA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-9755901QRA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 5962-9755901QRA?

5962-9755901QRA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5962-9755901QRA 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 5962-9755901QRA?

For technical support, including 5962-9755901QRA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9755901QRA requirements.

6.How does Aetrix verify that 5962-9755901QRA is sourced from the original manufacturer or authorized distributors?

All 5962-9755901QRA 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 5962-9755901QRA meets industry standards.

7.What is the process for return or replacement of 5962-9755901QRA?

All 5962-9755901QRA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9755901QRA, 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 5962-9755901QRA part is unused and in its original packaging.

Return procedure for 5962-9755901QRA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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