Texas Instruments 5962-9314801Q2A
- Part No.:
- 5962-9314801Q2A
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
5962-9314801Q2A.pdf
- Description:
- SN54ABT377 OCTAL EDGE-TRIGGERED
- Quantity:
- Payment:

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Product details
Overview
5962-9314801Q2A from Texas Instruments is a military-grade octal positive-edge-triggered D-type flip-flop with clock enable, operating across –55°C to 125°C. It features 8-bit synchronous storage, high-drive outputs (–32 mA IOH / 64 mA IOL), <1 V output ground bounce at 5 V, and latch-up immunity exceeding 500 mA per JESD-17 - deployed in avionics timing registers and radiation-tolerant data acquisition systems.
For engineers reviewing the 5962-9314801Q2A datasheet, 5962-9314801Q2A pinout, 5962-9314801Q2A application, or 5962-9314801Q2A equivalent, key selection criteria include military temperature range compliance, LCCC FK package mechanical robustness, clock-enable logic behavior, and BiCMOS-level noise immunity for deterministic edge-triggered state capture.
Technical Context
The 5962-9314801Q2A implements eight independent D-type latches synchronized to the rising edge of CLK only when CLKEN is low; transitions on CLKEN are internally debounced to prevent false triggering. Its EPIC-IIB BiCMOS architecture enables TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V) while delivering rail-to-rail CMOS-level output swing under load.
Timing is characterized for fCLK up to 150 MHz with tsu = 2.5 ns (data), th = 1.8 ns (data), and propagation delays tPLH/tPHL ≤ 7 ns (CL = 50 pF). Absolute maximum ratings include VCC = –0.5 V to 7 V and VI = –0.5 V to 7 V, supporting robust operation in transient-prone environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temperature | –55°C to 125°C - qualified for MIL-PRF-38535 Class B applications including flight-critical control and spaceborne telemetry. |
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with legacy 5-V TTL and mixed-signal systems without level-shifting. |
| Output Drive | –32 mA IOH / 64 mA IOL - drives heavy capacitive loads (e.g., backplane stubs) and multiple TTL inputs without external buffers. |
| Max Clock Frequency | 150 MHz - supports high-speed pipeline staging and real-time digital signal buffering in radar processing modules. |
| Input Clamp Current | –18 mA - protects against ESD-induced latch-up during handling or field surges per MIL-STD-883 Method 3015. |
| Ground Bounce (VOLP) | <1 V at VCC = 5 V, TA = 25°C - minimizes simultaneous switching noise in dense logic arrays and FPGA interface circuits. |
| Propagation Delay | tPLH/tPHL ≤ 7 ns (CL = 50 pF) - enables sub-7 ns setup/hold margin in 100+ MHz synchronous designs with tight timing closure. |
Pinout & Package
Ceramic Leadless Chip Carrier (LCCC) package, FK outline, 20-terminal square body with center ground pad; hermetically sealed for high-reliability military and aerospace deployment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLKEN | Active-low clock enable - gates all eight flip-flops; high state holds Q outputs static regardless of CLK activity. |
| 2–9 | 1Q–8Q | Eight complementary registered outputs - each reflects corresponding D-input state sampled on prior CLK↑ when CLKEN was low. |
| 10 | GND | Power ground reference - shared return path for all outputs and internal logic; requires low-inductance connection to minimize VOLP. |
| 11 | VCC | Positive supply - must be decoupled locally with ≥0.1 µF ceramic + 10 µF tantalum to sustain 64-mA IOL transients. |
| 12–19 | 1D–8D | Eight asynchronous data inputs - sampled only on CLK↑ edges occurring while CLKEN = low; floating inputs must be tied high/low. |
| 20 | CLK | Buffered clock input - edge-sensitive trigger; internal Schmitt-triggering rejects slow-rising signals and prevents metastability. |
Key Features
| Feature | Design Value |
|---|---|
| Latch-up immunity | Exceeds 500 mA per JEDEC JESD-17 - eliminates single-event latch-up risk in high-radiation environments such as satellite payloads. |
| High-noise immunity | Vhys = 100 mV input hysteresis - rejects power-supply ripple and crosstalk on CLKEN and data lines in noisy avionics bays. |
| Output ground bounce | VOLP < 1 V - allows reliable multi-bit parallel bus operation without added termination or sequencing delays. |
| ESD protection | >2000 V HBM, >200 V machine model - survives handling in non-ESD-controlled maintenance depots and field repair shops. |
| State-of-the-art BiCMOS | EPIC-IIB process - achieves 150-MHz speed with 250 µA quiescent ICC, enabling low-power active logic in battery-backed systems. |
Applications
| Avionics Data Buffering | Secure Communication Timing Registers |
|---|---|
|
Use Scenario: Capturing and holding sensor telemetry frames prior to encryption and RF transmission in UAV flight controllers. IC Role / Device Role / Timing Role: Synchronous 8-bit register providing glitch-free sampling of analog-to-digital converter outputs aligned to system master clock. Use Value: Ensures deterministic data capture across full military temperature range with no timing drift or metastability under vibration-induced supply noise. |
Use Scenario: Staging cryptographic key bits in tamper-resistant secure modules requiring guaranteed setup/hold margins under voltage perturbation. IC Role / Device Role / Timing Role: Edge-triggered storage element enforcing strict clock-enable gating to prevent unauthorized key exposure during reset sequences. Use Value: Prevents false clocking via CLKEN debouncing and exceeds 500 mA latch-up immunity - critical for anti-tamper certification (e.g., FIPS 140-3). |
| Radar Pulse Pattern Generation | Industrial PLC I/O Expansion |
|
Use Scenario: Generating precise 8-bit pulse-width modulated waveforms for phased-array antenna beam steering control. IC Role / Device Role / Timing Role: High-speed D-flip-flop bank synchronizing pattern data to 150-MHz system clock with sub-3 ns propagation delay. Use Value: Enables nanosecond-level phase alignment across 8-channel RF paths without external delay compensation circuitry. |
Use Scenario: Expanding discrete I/O capacity in ruggedized programmable logic controllers used in oilfield drilling rigs. IC Role / Device Role / Timing Role: Industrial-grade storage register interfacing microcontroller GPIOs to 24-V DC field sensors and actuators. Use Value: Withstands –55°C cold starts and 125°C engine-bay ambient while driving 64-mA loads directly - eliminating external driver ICs. |
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 |
|---|---|---|---|
| SNJ54ABT377FK | Identical die, same LCCC-FK package, identical military screening - functionally and mechanically interchangeable. | No difference; both meet MIL-PRF-38535 Class B requirements and share identical device marking and traceability. | Select SNJ54ABT377FK if sourcing through legacy defense logistics channels requiring NSN or DSCC-qualified part numbers. |
| 5962-9314801QRA | Ceramic DIP (J-package) variant - same electrical specs but larger footprint, higher θJA (N/A rated), and different mounting mechanics. | Suitable for through-hole prototyping or legacy board rework where LCCC reflow capability is unavailable. | Choose 5962-9314801QRA only when LCCC assembly infrastructure is inaccessible; expect ~20% higher thermal resistance and reduced high-frequency signal integrity. |
Compared with SNJ54ABT377FK, 5962-9314801Q2A offers identical performance and qualification but distinct DSCC drawing number and lot trace format; versus 5962-9314801QRA, it delivers superior thermal management and board-space efficiency in surface-mount avionics assemblies.
Availability
5962-9314801Q2A is available at Aetrix Electronics and suitable for avionics data buffering, secure communication timing registers, radar pulse pattern generation, and industrial PLC I/O expansion requiring stable component supply across extended temperature and long product lifecycles.
Supply support for 5962-9314801Q2A 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 over 50 years of aerospace and defense component heritage.
The ABT logic family - including 5962-9314801Q2A - was engineered for high-speed, low-noise, radiation-resilient digital interfacing in mission-critical systems where timing determinism and latch-up immunity are non-negotiable.
FAQ
What is the qualified temperature range for the 5962-9314801Q2A?
The 5962-9314801Q2A is fully characterized and qualified for continuous operation from –55°C to 125°C per MIL-PRF-38535 Class B requirements. This range is validated across all electrical parameters including setup/hold times, propagation delay, and output drive strength - making it suitable for stratospheric UAVs and satellite subsystems where ambient extremes are routine.
Does the 5962-9314801Q2A support true 5-V TTL interfacing?
Yes, the 5962-9314801Q2A supports direct 5-V TTL interfacing: its VIH threshold is 2.0 V minimum and VIL is 0.8 V maximum, matching standard TTL logic levels. Input clamp current is rated at –18 mA, and outputs deliver –32 mA IOH / 64 mA IOL into TTL loads - eliminating need for level translators in legacy 5-V systems.
How does the clock-enable (CLKEN) functionality behave in the 5962-9314801Q2A?
In the 5962-9314801Q2A, CLKEN is an active-low synchronous enable: only when CLKEN = low will data at D inputs be transferred to Q outputs on the next CLK rising edge. When CLKEN = high, Q outputs retain their last state regardless of CLK transitions - and internal circuitry prevents false triggering from CLKEN glitches.
What package type is used for the 5962-9314801Q2A and why is it preferred in military applications?
The 5962-9314801Q2A uses a 20-terminal ceramic leadless chip carrier (LCCC, FK package). This hermetic, leadless construction provides superior moisture resistance, thermal cycling endurance, and mechanical stability versus plastic or through-hole packages - essential for reliability in missile guidance systems and airborne radar where vibration and thermal shock are severe.
Is the 5962-9314801Q2A pin-compatible with commercial-grade SN74ABT377A variants?
No - the 5962-9314801Q2A (LCCC-FK, 20-pin) is not pin-compatible with commercial SN74ABT377A variants (e.g., SOIC-DW, SSOP-DB, TSSOP-PW), which use different footprints, thermal pads, and lead configurations. Electrical functionality is identical, but PCB layout and assembly processes differ fundamentally between hermetic LCCC and plastic surface-mount packages.
5962-9314801Q2A 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:
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- Operating Temperature:
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- Grade:
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- Qualification:
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- Mounting Type:
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- Supplier Device Package:
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5962-9314801Q2A FAQ
1.How can I place an order for 5962-9314801Q2A through Aetrix?
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6.How does Aetrix verify that 5962-9314801Q2A is sourced from the original manufacturer or authorized distributors?
All 5962-9314801Q2A 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 5962-9314801Q2A meets industry standards.
7.What is the process for return or replacement of 5962-9314801Q2A?
All 5962-9314801Q2A units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9314801Q2A, 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 5962-9314801Q2A part is unused and in its original packaging.
Return procedure for 5962-9314801Q2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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