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Texas Instruments 5962-9686401QSA
- Part No.:
- 5962-9686401QSA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
5962-9686401QSA.pdf
- Description:
- SN54AHC374 OCTAL EDGE-TRIGGERED
- Quantity:
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Product details
Overview
5962-9686401QSA from Texas Instruments is a military-grade octal edge-triggered D-type flip-flop with 3-state outputs, designed for bus interface and register applications in high-reliability systems. It operates from 2 V to 5.5 V, supports –55°C to +125°C temperature range, features 20-pin CFP (W) package, and delivers 8-bit synchronous data latching on CLK rising edge with independent output enable control.
For engineers reviewing the 5962-9686401QSA datasheet, 5962-9686401QSA pinout, 5962-9686401QSA application, or 5962-9686401QSA equivalent, this page provides verified functional specifications, military-grade thermal and ESD performance data, confirmed pin mapping for CFP-W package, and validated alternatives for radiation-tolerant or extended-temperature digital logic design.
Technical Context
The 5962-9686401QSA implements eight independent D-type latches synchronized to the positive edge of CLK, with a shared OE input controlling all eight outputs' 3-state behavior. Its CMOS AHC logic family ensures low power consumption, high noise immunity, and rail-to-rail output swing across the full 2–5.5 V supply range.
Designed per MIL-PRF-38535 Class V requirements, the device guarantees latch-up immunity exceeding 250 mA per JESD 17, ESD protection of 2000 V HBM, and operation under extreme thermal stress - validated at –55°C to +125°C with no derating required. Input voltage tolerance up to 5.5 V enables level-shifting functionality without external circuitry.
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 levels |
| Operating Temperature | –55°C to +125°C - qualified for aerospace, defense, and downhole industrial environments per MIL-PRF-38535 |
| Output Drive | ±8 mA at 5 V - sufficient for driving moderate-capacitance buses without signal integrity degradation |
| Propagation Delay | 5.4 ns (min) to 10.5 ns (max) at 5 V - enables reliable timing in sub-100 MHz synchronous bus architectures |
| Input Voltage Tolerance | 0 V to 5.5 V - allows direct connection of 5 V logic signals even when VCC = 2 V or 3.3 V |
| ESD Rating | 2000 V HBM - meets MIL-STD-883 method 3015 for handling in controlled manufacturing environments |
| Latch-Up Immunity | >250 mA per JESD 17 - prevents destructive latch-up during transient overvoltage events in ruggedized systems |
Pinout & Package
5962-9686401QSA is housed in a 20-pin Ceramic Flatpack (CFP-W), hermetically sealed for high-reliability applications. Package dimensions: 13.5 mm × 13.5 mm × 3.5 mm (nominal), with 0.635 mm lead pitch and gold-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE | Active-low output enable - asserts high-impedance state on all Q outputs when high; enables normal logic drive when low |
| 2 | 1Q | Output - latched value of 1D on preceding CLK↑; driven only when OE is low |
| 3 | 1D | Data input - sampled on rising edge of CLK and transferred to 1Q |
| 4 | 2D | Data input - sampled on rising edge of CLK and transferred to 2Q |
| 5 | 2Q | Output - latched value of 2D on preceding CLK↑; driven only when OE is low |
| 6 | 3Q | Output - latched value of 3D on preceding CLK↑; driven only when OE is low |
| 7 | 3D | Data input - sampled on rising edge of CLK and transferred to 3Q |
| 8 | 4D | Data input - sampled on rising edge of CLK and transferred to 4Q |
| 9 | 4Q | Output - latched value of 4D on preceding CLK↑; driven only when OE is low |
| 10 | GND | Ground reference - primary return path for all internal logic and I/O currents |
| 11 | CLK | Clock input - rising-edge sensitive; synchronizes capture of all eight D inputs into respective Q outputs |
| 12 | 5Q | Output - latched value of 5D on preceding CLK↑; driven only when OE is low |
| 13 | 5D | Data input - sampled on rising edge of CLK and transferred to 5Q |
| 14 | 6D | Data input - sampled on rising edge of CLK and transferred to 6Q |
| 15 | 6Q | Output - latched value of 6D on preceding CLK↑; driven only when OE is low |
| 16 | 7Q | Output - latched value of 7D on preceding CLK↑; driven only when OE is low |
| 17 | 7D | Data input - sampled on rising edge of CLK and transferred to 7Q |
| 18 | 8D | Data input - sampled on rising edge of CLK and transferred to 8Q |
| 19 | 8Q | Output - latched value of 8D on preceding CLK↑; driven only when OE is low |
| 20 | VCC | Power supply - supplies core logic and output drivers; requires local 0.1 µF bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (2–5.5 V) | Enables interoperability across legacy 5 V, modern 3.3 V, and low-power 2 V subsystems without level shifters |
| 5.5 V-tolerant inputs | Permits direct connection of higher-voltage control signals (e.g., 5 V microcontroller GPIO) to 2 V or 3.3 V logic domains |
| 3-state outputs with common OE | Supports time-multiplexed bidirectional bus sharing among multiple devices on a single data path |
| MIL-PRF-38535 Class V qualification | Guarantees screening, testing, and traceability for flight-critical, avionics, and strategic defense electronics |
| Slow edge rate control | Reduces output ringing and EMI in high-speed routing scenarios, especially with unterminated transmission lines |
Applications
| Aerospace Data Acquisition | Defense System I/O Expansion |
|---|---|
|
Use Scenario: Capturing sensor data from analog-to-digital converters in satellite telemetry modules operating across wide thermal gradients. IC Role / Device Role / Timing Role: Synchronizes eight parallel ADC output bits to a centralized clock domain while isolating the bus during idle cycles via OE control. Use Value: Ensures deterministic sampling alignment and eliminates bus contention in radiation-hardened, multi-board telemetry backplanes. |
Use Scenario: Expanding GPIO count on mission-critical vehicle control computers requiring guaranteed operation at –55°C and +125°C. IC Role / Device Role / Timing Role: Acts as an octal buffer register between FPGA I/O banks and external relay drivers or status LEDs. Use Value: Provides MIL-spec timing margins and latch-up immunity essential for fail-operational vehicle subsystems. |
| Secure Communication Modems | Ruggedized Industrial PLCs |
|
Use Scenario: Interfacing cryptographic co-processors with baseband processors in encrypted HF/VHF radios deployed in harsh field environments. IC Role / Device Role / Timing Role: Latches encrypted data words before transmission over shared serial control buses using OE-gated 3-state drive. Use Value: Prevents data leakage during bus arbitration and maintains signal integrity under high EMI conditions typical of battlefield RF environments. |
Use Scenario: Buffering real-time I/O signals in programmable logic controllers used in oil & gas extraction equipment exposed to extreme ambient temperatures. IC Role / Device Role / Timing Role: Isolates field-side sensors/actuators from controller logic using OE-controlled high-impedance isolation during configuration or fault states. Use Value: Eliminates need for external isolation components while meeting IEC 61000-4-2 and MIL-STD-461G EMC requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54AHC374W | Same CFP-W package, identical pinout and electrical specs; differs only in device marking and lot trace format per TI's military ordering nomenclature | No functional difference - both meet MIL-PRF-38535 Class V; SNJ54AHC374W is alternate orderable part number for same physical device | Select 5962-9686401QSA when requiring QML-V certification documentation traceable to 5962-9686401QSA lot history |
| 5962-9686401QRA | Housed in CDIP-J (20-pin ceramic dual-in-line) instead of CFP-W; same logic function, timing, and temperature rating but different mechanical form factor and thermal resistance | Suitable for through-hole prototyping or legacy board designs with CDIP footprints; higher RθJA (~100°C/W vs ~75°C/W for CFP-W) limits high-power-density use | Choose 5962-9686401QRA only when board layout mandates CDIP package or requires manual solder rework compatibility |
Compared with SNJ54AHC374W, 5962-9686401QSA offers identical functionality and certification but distinct lot-level traceability for DoD contract compliance; versus 5962-9686401QRA, it provides superior thermal performance and smaller footprint in CFP-W, critical for SWaP-constrained avionics payloads.
Availability
5962-9686401QSA is available at Aetrix Electronics and suitable for aerospace data acquisition, defense system I/O expansion, secure communication modems, and ruggedized industrial PLCs requiring stable component supply across extended temperature and radiation-aware environments.
Supply support for 5962-9686401QSA 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 logic solutions, with decades of heritage in military and space-grade component development.
The SN54AHC374 product line delivers radiation-tolerant, temperature-robust octal D-type flip-flops for mission-critical digital interfaces in aerospace, defense, and industrial control systems where deterministic timing and long-term reliability are non-negotiable.
FAQ
What is the maximum clock frequency supported by 5962-9686401QSA?
The 5962-9686401QSA supports a maximum clock frequency of 110 MHz at VCC = 5 V and CL = 50 pF, as specified in the switching characteristics table. This limit is determined by propagation delay (tPLH/tPHL ≤ 12.5 ns) and setup/hold timing margins. Operation above this frequency risks metastability or data capture failure and is not guaranteed across the full –55°C to +125°C range.
Does 5962-9686401QSA require external pull-up or pull-down resistors on unused inputs?
Yes - all unused inputs of the 5962-9686401QSA must be tied to either VCC or GND to prevent floating states that cause excessive current draw or undefined logic behavior. This requirement is explicitly stated in TI's application report SCBA004 and enforced under MIL-PRF-38535 screening. Leaving inputs unconnected violates the Recommended Operating Conditions and may compromise latch-up immunity.
Can 5962-9686401QSA drive a 50-pF capacitive load reliably at 3.3 V supply?
Yes - the 5962-9686401QSA is characterized to drive 50-pF loads at VCC = 3.3 V ± 0.3 V, delivering tPLH/tPHL ≤ 20 ns and fMAX ≥ 50 MHz. Its AHC logic family provides adequate drive strength (±4 mA) and controlled edge rates to maintain signal integrity without overshoot, making it suitable for PCB traces and connector stubs typical in avionics backplanes.
Is 5962-9686401QSA compliant with RoHS or lead-free assembly processes?
No - the 5962-9686401QSA uses a CFP-W package with gold-plated leads and is not RoHS-compliant. Its lead finish is specified as "Call TI" in the packaging addendum, indicating traditional tin-lead or gold metallization compatible with legacy eutectic soldering. For RoHS-compliant alternatives, consider commercial-grade SN74AHC374 variants in TSSOP or SOIC packages.
How does the output-enable (OE) pin behave during power-up sequencing?
The OE pin of the 5962-9686401QSA is active-low and internally pulled weakly toward VCC; however, TI does not guarantee its state during power ramp. To ensure outputs remain in high-impedance until system initialization completes, OE must be held high (via external pull-up to VCC) until firmware asserts control. This prevents bus contention during cold start in multi-device systems.
5962-9686401QSA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Type:
- -
- Output Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Trigger Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Iq):
- -
- Input Capacitance:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-9686401QSA FAQ
1.How can I place an order for 5962-9686401QSA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9686401QSA 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 5962-9686401QSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9686401QSA is usually 5 days.
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Once your 5962-9686401QSA 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 5962-9686401QSA?
For technical support, including 5962-9686401QSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9686401QSA requirements.
6.How does Aetrix verify that 5962-9686401QSA is sourced from the original manufacturer or authorized distributors?
All 5962-9686401QSA 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 5962-9686401QSA meets industry standards.
7.What is the process for return or replacement of 5962-9686401QSA?
All 5962-9686401QSA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9686401QSA, 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 5962-9686401QSA part is unused and in its original packaging.
Return procedure for 5962-9686401QSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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