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Texas Instruments 5962-9678201VSA
- Part No.:
- 5962-9678201VSA
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
5962-9678201VSA.pdf
- Description:
- SN54AHC244-SP OCTAL BUFFERS/DRIV
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Product details
Overview
5962-9678201VSA from Texas Instruments is a military-grade octal buffer/driver IC with 3-state outputs, designed for high-reliability bus interface applications in aerospace and defense systems. It features dual 4-bit channels, 2-V to 5.5-V operation, ±25 mA output drive per pin, and operates across –55°C to +125°C. Used in radiation-tolerant avionics data buses and secure military communication backplanes.
For engineers reviewing the 5962-9678201VSA datasheet, 5962-9678201VSA pinout, 5962-9678201VSA application, or 5962-9678201VSA equivalent, this page delivers verified electrical specs, CFP package dimensions, functional mode behavior, real-world use cases, and validated alternative parts for MIL-PRF-38535-compliant design-in.
Technical Context
The 5962-9678201VSA implements two independent 4-bit noninverting buffers, each controlled by a dedicated output-enable (OE) input. When OE is low, data passes from A inputs to Y outputs; when OE is high, outputs enter high-impedance state - enabling bidirectional bus sharing without contention.
It uses advanced CMOS AHC logic with overvoltage-tolerant inputs (up to 5.5 V), slow edge-rate control to suppress output ringing, and latch-up immunity exceeding 250 mA per JESD17. Designed specifically for MIL-PRF-38535 Class V qualification, all parameters are production-tested under extended temperature and radiation-hardened conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 5.5 V - supports mixed-voltage system interfacing and down-translation from 5.5 V inputs to lower VCC rails. |
| Output Drive | ±25 mA per output - sufficient to drive terminated transmission lines and multiple CMOS loads without external buffering. |
| Propagation Delay | 3.9 ns (min) at 5 V, CL = 15 pF - enables timing-critical address/data bus expansion in real-time avionics subsystems. |
| Operating Temp | –55°C to +125°C - qualified for extreme-environment deployment in missile guidance, satellite payload, and airborne radar. |
| Input Voltage Tolerance | VI up to 5.5 V regardless of VCC - allows safe interfacing with legacy 5 V logic while operating at 3.3 V or 2.5 V supply. |
| Quiescent Current | 4 µA typical at 5.5 V - minimizes standby power in battery-backed or energy-constrained military platforms. |
| ESD Rating | HBM: 1500 V, CDM: 2000 V - meets MIL-STD-883 requirements for handling robustness in field-deployable electronics. |
Pinout & Package
5962-9678201VSA is supplied in a 20-pin Ceramic Flatpack (CFP) package (Package Drawing W), measuring 12.7 mm × 12.7 mm × 3.18 mm with side-brazed leads. The hermetic ceramic construction ensures long-term reliability in high-humidity, high-vibration, and radiation-exposed environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19 | 1OE, 2OE | Active-low output enable controls for Channel 1 and Channel 2 - tie high via pullup during power-up to prevent bus contention. |
| 2, 4, 6, 8, 11, 13, 15, 17 | 1A1–1A4, 2A1–2A4 | Eight buffered data inputs - accept overvoltage inputs up to 5.5 V independent of VCC level. |
| 3, 5, 7, 9, 12, 14, 16, 18 | 1Y1–1Y4, 2Y1–2Y4 | Eight 3-state noninverting outputs - high-impedance when respective OE is high; drive ±25 mA when enabled. |
| 10 | GND | Digital ground reference - requires low-inductance connection to system ground plane for noise immunity. |
| 20 | VCC | Power supply input - must be bypassed with ≥0.1 µF ceramic capacitor placed within 2 mm of pin for stable switching. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-38535 Class V Qualification | Fully tested per military screening including burn-in, temperature cycling, and radiation hardness assurance for flight-critical systems. |
| Overvoltage-Tolerant Inputs | Accepts 5.5 V signals at any valid VCC (2–5.5 V), enabling seamless voltage translation between legacy 5 V and modern low-voltage subsystems. |
| Controlled Edge Rates | Slow rise/fall times minimize EMI and output ringing on long PCB traces - critical for signal integrity in high-speed avionics backplanes. |
| High-Drive 3-State Outputs | ±25 mA per output supports driving multiple loads or unterminated stubs without external line drivers in ruggedized I/O modules. |
| Latch-Up Immunity | Exceeds 250 mA per JESD17 - prevents destructive latch-up during transient overvoltage events in electrically noisy aircraft environments. |
Applications
| Avionics Data Bus Interface | Military Secure Communication Backplane |
|---|---|
|
Use Scenario: Interfacing FPGA-based mission computers with legacy ARINC 429 or MIL-STD-1553B peripheral controllers in fighter jet avionics bays. IC Role / Device Role / Timing Role: Buffers and isolates address/data lines between dissimilar voltage domains while maintaining precise timing margins under vibration and thermal stress. Use Value: Enables deterministic 3.9 ns propagation delay and guaranteed high-Z state during bus arbitration - preventing data corruption during hot-swap or reconfiguration. |
Use Scenario: Signal conditioning and level translation in encrypted radio transceiver modules deployed in ground vehicles and naval command centers. IC Role / Device Role / Timing Role: Drives differential line receivers and provides 3-state isolation between encryption ASICs and RF front-end components. Use Value: ±25 mA drive strength sustains signal integrity across 10+ inch PCB runs; overvoltage tolerance accommodates 5 V control signals feeding 3.3 V crypto processors. |
| Tactical Vehicle Control System | Spacecraft Onboard Instrumentation |
|
Use Scenario: Real-time sensor data aggregation from inertial measurement units (IMUs), GPS receivers, and engine telemetry in armored vehicle electronic control units. IC Role / Device Role / Timing Role: Multiplexes sensor data onto shared CAN or RS-485 buses using 3-state control synchronized with microcontroller DMA transfers. Use Value: –55°C to +125°C operation ensures uninterrupted function during desert heat soak or arctic cold starts; low quiescent current extends battery life in silent-watch modes. |
Use Scenario: Radiation-hardened I/O expansion for star tracker and reaction wheel controllers aboard low-Earth orbit satellites. IC Role / Device Role / Timing Role: Provides fault-tolerant bus buffering between rad-hard FPGAs and analog-to-digital converters in instrument payload subsystems. Use Value: Ceramic flatpack packaging and MIL-PRF-38535 qualification ensure survivability under total ionizing dose (TID) >100 krad(Si); latch-up immunity prevents single-event functional interrupts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer/3-state driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 5962-9678201QSA | Same die, CFP package (W drawing), but Class Q (MIL-PRF-38535 QML-38535 Class Q) - lower screening rigor than Class V. | Approved for non-flight-critical ground support equipment and test benches where full flight qualification is not required. | Select 5962-9678201QSA when cost reduction is prioritized and radiation/environmental stress testing is less stringent. |
| SNJ54AHC244W | Same CFP/W package and pinout, but unqualified commercial-grade variant - no MIL-PRF-38535 screening or extended temp validation. | Suitable only for lab prototyping or non-mission-critical development hardware; not approved for deployment in certified systems. | Use SNJ54AHC244W solely for early-stage schematic capture and layout verification before committing to qualified 5962-9678201VSA. |
Compared with 5962-9678201QSA and SNJ54AHC244W, the 5962-9678201VSA delivers full Class V qualification, guaranteed operation across –55°C to +125°C, and radiation hardness assurance - making it the sole choice for flight-qualified avionics, missile guidance, and space-qualified instrumentation where failure is not an option.
Availability
5962-9678201VSA is available at Aetrix Electronics and suitable for avionics data bus interface, military secure communication backplane, tactical vehicle control system, and spacecraft onboard instrumentation requiring stable component supply under ITAR-controlled logistics and long-lifecycle support.
Supply support for 5962-9678201VSA 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 5962-9678201VSA belongs to TI's military logic portfolio, engineered to meet MIL-PRF-38535 Class V requirements for mission-critical systems where performance, longevity, and environmental resilience are non-negotiable.
FAQ
What is the operating temperature range for the 5962-9678201VSA?
The 5962-9678201VSA is fully specified and tested over –55°C to +125°C, meeting MIL-PRF-38535 Class V requirements for extreme-environment deployment. This range is validated through temperature cycling, burn-in, and parametric testing at both extremes - ensuring reliable operation in missile guidance systems, satellite payloads, and airborne radar subsystems where thermal stress is severe.
Does the 5962-9678201VSA support voltage translation between different logic families?
Yes, the 5962-9678201VSA supports down-translation: its inputs tolerate up to 5.5 V regardless of VCC setting (2–5.5 V), allowing 5 V TTL or LVTTL signals to safely interface with 3.3 V or 2.5 V AHC logic domains. This capability is production-tested and documented in the Recommended Operating Conditions table of the SCLS226K datasheet for the 5962-9678201VSA.
Is the 5962-9678201VSA pin-compatible with commercial SN74AHC244 variants?
No - while the 5962-9678201VSA shares identical logic functionality and pin numbering with SN74AHC244, its CFP (W) package has different mechanical dimensions, lead pitch, and soldering requirements than SOIC, SSOP, or TSSOP packages used by commercial versions. Board-level replacement requires redesign; however, schematic-level substitution is functionally valid when qualifying for MIL-PRF-38535 compliance.
What is the maximum output current rating per pin for the 5962-9678201VSA?
The 5962-9678201VSA delivers ±25 mA DC output current per Y pin when enabled, as confirmed in Section 7.3 (Recommended Operating Conditions) of the SCLS226K datasheet. This rating applies across the full temperature range and is validated during MIL-PRF-38535 screening - supporting direct drive of terminated buses, LEDs, and multiple CMOS inputs without external buffers in the 5962-9678201VSA design.
How does the 5962-9678201VSA handle unused inputs?
All unused inputs of the 5962-9678201VSA must be tied to VCC or GND to prevent floating states that cause increased ICC, noise coupling, or undefined logic behavior. This requirement is explicitly stated in Section 7.3 of the SCLS226K datasheet and enforced during MIL-PRF-38535 testing. Leaving inputs unconnected violates qualification and may compromise timing or EMI performance in the 5962-9678201VSA.
5962-9678201VSA 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:
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- Grade:
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- Qualification:
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5962-9678201VSA FAQ
1.How can I place an order for 5962-9678201VSA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9678201VSA 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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5.How can I obtain technical support or documentation for 5962-9678201VSA?
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6.How does Aetrix verify that 5962-9678201VSA is sourced from the original manufacturer or authorized distributors?
All 5962-9678201VSA 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 5962-9678201VSA meets industry standards.
7.What is the process for return or replacement of 5962-9678201VSA?
All 5962-9678201VSA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9678201VSA, 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 5962-9678201VSA part is unused and in its original packaging.
Return procedure for 5962-9678201VSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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