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Texas Instruments 5962-9686101QDA
- Part No.:
- 5962-9686101QDA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
5962-9686101QDA.pdf
- Description:
- SN54AHCT74 DUAL POSITIVE-EDGE-TR
- Quantity:
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Product details
Overview
5962-9686101QDA from Texas Instruments is a dual D-type positive-edge-triggered flip-flop in ceramic flatpack (CFP) package with 14 pins, operating over –55°C to 125°C, supporting 4.5 V to 5.5 V supply, TTL-compatible inputs, and ±8 mA output drive. It implements synchronous data storage in military-grade timing and control circuits requiring radiation-tolerant logic.
For engineers reviewing the 5962-9686101QDA datasheet, 5962-9686101QDA pinout, 5962-9686101QDA application, or 5962-9686101QDA equivalent, key selection criteria include its MIL-PRF-38535 qualification, CFP-W package thermal stability, dual independent preset/clear functionality, and guaranteed propagation delay ≤12 ns at 5 V with 15 pF load.
Technical Context
The 5962-9686101QDA implements two independent edge-triggered D flip-flops with asynchronous active-low preset (PRE) and clear (CLR) inputs. Each stage features non-overlapping clock enable behavior and holds output state during invalid PRE/CLR transitions.
It operates under strict military environmental conditions: –55°C to 125°C free-air temperature, with absolute maximum supply voltage of –0.5 V to 7 V and input clamp current rating of ±20 mA. Its logic thresholds are TTL-compatible (VIH = 2 V min, VIL = 0.8 V max), ensuring interoperability with legacy 5 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with regulated 5 V military power rails and rejects supply noise up to ±0.5 V. |
| Propagation Delay (tPLH/tPHL) | ≤12 ns at VCC = 5 V, CL = 15 pF - enables reliable operation in 40 MHz+ synchronous control loops. |
| Output Drive | ±8 mA - sufficient to directly drive multiple TTL inputs or small capacitive loads without buffering. |
| Input Compatibility | TTL-level (VIH ≥ 2 V, VIL ≤ 0.8 V) - eliminates need for level-shifting when interfacing with legacy 5 V logic families. |
| Operating Temperature | –55°C to 125°C - certified for deployment in avionics, spaceborne electronics, and ground vehicle engine compartments. |
| Static Current (ICC) | ≤20 µA at TA = 25°C - supports low-quiescent-power standby modes in battery-backed subsystems. |
| Setup/Hold Time | tsu = 5 ns, th = 0 ns - simplifies timing closure in high-speed PCB layouts with minimal external delay compensation. |
Pinout & Package
Ceramic Flatpack (CFP-W), 14-pin, hermetically sealed, with 0.050" lead pitch and 0.200" body width. Designed for high-reliability mounting on ceramic substrates or PTFE-based RF boards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 2CLR | Asynchronous clear input for second flip-flop; active-low, overrides clock and data when asserted. |
| 2 | 2D | Data input for second flip-flop; sampled on rising clock edge when PRE/CLR inactive. |
| 3 | 2CLK | Clock input for second flip-flop; positive-edge sensitive with voltage-threshold triggering (not edge-rate dependent). |
| 4 | 2PRE | Asynchronous preset input for second flip-flop; active-low, forces Q = H, Q̄ = L independently of clock. |
| 5 | 2Q | True output of second flip-flop; CMOS-compatible, rail-to-rail swing, ±8 mA drive capability. |
| 6 | 2Q̄ | Inverted output of second flip-flop; complementary to 2Q, electrically isolated but functionally linked. |
| 7 | GND | Power return reference for both flip-flops; must be low-inductance connection to minimize ground bounce. |
| 8 | VCC | Positive supply terminal; requires local 0.1 µF ceramic decoupling within 5 mm of pin per MIL-STD-1394. |
| 9 | 1D | Data input for first flip-flop; electrically identical to 2D, no crosstalk specified between sections. |
| 10 | 1CLK | Clock input for first flip-flop; fully independent timing domain from 2CLK; no skew specification between sections. |
| 11 | 1PRE | Asynchronous preset for first flip-flop; functional duplicate of 2PRE, no shared internal logic. |
| 12 | 1Q | True output of first flip-flop; matches 2Q electrical specs; usable as feedback or status signal without loading penalty. |
| 13 | 1Q̄ | Inverted output of first flip-flop; provides complementary logic state for differential signaling or reset synchronization. |
| 14 | 1CLR | Asynchronous clear for first flip-flop; independent control path; no internal arbitration with 2CLR. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent D flip-flops | Enables compact implementation of paired register functions-e.g., dual-channel ADC sampling control or redundant state machines-without inter-stage coupling. |
| Asynchronous PRE/CLR per section | Allows hard-reset or forced-set of individual flip-flops during system initialization or fault recovery without affecting the other channel. |
| MIL-PRF-38535 Class V qualification | Guarantees screening for burn-in, temperature cycling, and hermeticity-required for flight-critical and defense electronics programs. |
| TTL-compatible inputs | Eliminates level translators when interfacing with legacy 5 V microcontrollers, FPGAs, or discrete logic in retrofitted systems. |
| Low input capacitance (Ci = 10 pF max) | Minimizes trace loading and signal integrity degradation in high-speed routing across multi-layer ceramic substrates. |
Applications
| Avionics Data Synchronization | Secure Boot State Latching |
|---|---|
|
Use Scenario: Capturing GPS PPS (pulse-per-second) and inertial sensor timestamps in airborne navigation units. IC Role / Device Role / Timing Role: Dual-edge-aligned latch holding synchronized time-of-day and attitude data before transfer to flight computer. Use Value: Guaranteed <12 ns propagation delay and –55°C to 125°C operation ensure deterministic timestamp capture across all flight envelopes. |
Use Scenario: Storing cryptographic key validity flags during secure boot sequence in encrypted mission computers. IC Role / Device Role / Timing Role: Non-volatile state latch asserting "secure mode enabled" only after verified firmware signature check. Use Value: Asynchronous PRE/CLR allows immediate hardware-enforced state reset upon authentication failure, preventing privilege escalation. |
| Radiation-Hardened Telemetry Encoder | Redundant Watchdog Timer Interface |
|
Use Scenario: Encoding telemetry frames prior to transmission from satellite payloads exposed to total ionizing dose >100 krad(Si). IC Role / Device Role / Timing Role: Dual-register stage buffering encoded packet headers and CRC checksums before serial modulation. Use Value: CFP-W ceramic package and MIL-qualified process provide immunity to single-event transients and long-term parametric drift. |
Use Scenario: Monitoring dual-core processor health in fault-tolerant vehicle control ECUs using cross-monitoring watchdog signals. IC Role / Device Role / Timing Role: Edge-triggered capture of heartbeat pulses from each core, with independent CLR enabling selective timeout recovery. Use Value: Independent PRE/CLR per flip-flop permits asymmetric reset behavior-e.g., resetting only failed core while preserving healthy core state. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 5962-9686101QCA | CDIP-J package (14-pin ceramic DIP), same electrical specs, higher θJA (80°C/W vs. 113°C/W for CFP-W). | Better suited for through-hole prototyping or legacy board rework where socket compatibility is required. | Select when mechanical interchangeability with existing J-package sockets is mandatory and airflow-limited thermal design is acceptable. |
| SNJ54AHCT74W | Same CFP-W package and pinout, but non-MIL-PRF-38535 commercial-grade variant; lacks Class V screening and extended reliability testing. | Applicable only in non-critical industrial environments where radiation tolerance and burn-in validation are not required. | Choose only for cost-sensitive ground-test equipment or lab prototypes where full military qualification is unnecessary. |
Compared with 5962-9686101QCA and SNJ54AHCT74W, the 5962-9686101QDA uniquely combines hermetic CFP-W packaging, Class V screening, and guaranteed –55°C to 125°C performance-making it the sole option for flight hardware and nuclear-hardened systems where parameter stability under extreme stress is non-negotiable.
Availability
5962-9686101QDA is available at Aetrix Electronics and suitable for avionics timing, secure boot latching, radiation-hardened telemetry, and redundant watchdog interface applications requiring stable component supply across extended product lifecycles.
Supply support for 5962-9686101QDA 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 aerospace and defense component development.
The 5962-9686101QDA belongs to TI's military logic portfolio, designed specifically for high-integrity digital control in mission-critical platforms where failure is not an option-including launch vehicles, tactical radios, and hardened command-and-control systems.
FAQ
What is the maximum clock frequency supported by the 5962-9686101QDA?
The 5962-9686101QDA supports a maximum clock frequency of 40 MHz under recommended conditions (VCC = 5 V, CL = 15 pF, TA = 25°C), derived from its maximum propagation delay of 12 ns. At elevated temperatures or heavier loads (e.g., CL = 50 pF), fmax drops to 65 MHz minimum, ensuring robust timing margin in real-world deployments.
Does the 5962-9686101QDA require external pull-up resistors on PRE and CLR inputs?
No, the 5962-9686101QDA does not require external pull-ups on PRE or CLR inputs. These inputs are internally biased and fully compatible with TTL logic levels; they must be driven actively high (≥2 V) to disable asynchronous control or actively low (≤0.8 V) to assert preset/clear-floating inputs are prohibited per TI application note SCBA004.
Is the 5962-9686101QDA pin-compatible with commercial SN74AHCT74 variants?
No, the 5962-9686101QDA is not pin-compatible with commercial SOIC (D), TSSOP (PW), or VQFN (RGY) versions of SN74AHCT74. It uses the CFP-W package with 0.050" lead pitch and distinct mechanical footprint; only other W-package variants like SNJ54AHCT74W share identical pinout and solder pattern.
What is the meaning of "QDA" in the 5962-9686101QDA part number?
The "QDA" suffix in 5962-9686101QDA denotes a specific military-grade configuration: Q = Qualified per MIL-PRF-38535, D = CFP package type, A = Revision A of the drawing and test flow. This distinguishes it from QCA (CDIP-J) and Q2A (LCCC-FK) variants within the same device family.
Can the 5962-9686101QDA operate reliably at 3.3 V supply?
No, the 5962-9686101QDA is not characterized or guaranteed for operation at 3.3 V. Its recommended operating range is strictly 4.5 V to 5.5 V per the datasheet; operation below 4.5 V may result in undefined logic states, increased propagation delay, or failure to meet setup/hold timing-especially at temperature extremes.
5962-9686101QDA 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:
- -
5962-9686101QDA FAQ
1.How can I place an order for 5962-9686101QDA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9686101QDA 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 5962-9686101QDA reliable?
The price and inventory of 5962-9686101QDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9686101QDA is usually 5 days.
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Once your 5962-9686101QDA 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 5962-9686101QDA?
For technical support, including 5962-9686101QDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9686101QDA requirements.
6.How does Aetrix verify that 5962-9686101QDA is sourced from the original manufacturer or authorized distributors?
All 5962-9686101QDA 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 5962-9686101QDA meets industry standards.
7.What is the process for return or replacement of 5962-9686101QDA?
All 5962-9686101QDA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9686101QDA, 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 5962-9686101QDA part is unused and in its original packaging.
Return procedure for 5962-9686101QDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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