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Texas Instruments 5962-9321701QRA
- Part No.:
- 5962-9321701QRA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
5962-9321701QRA.pdf
- Description:
- SN54ABT273 OCTAL EDGE-TRIGGERED
- Quantity:
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Product details
Overview
5962-9321701QRA from Texas Instruments is a military-grade octal positive-edge-triggered D-type flip-flop with asynchronous clear, operating across –55°C to 125°C. It features 8-bit storage, high-drive outputs (–32 mA IOH, 64 mA IOL), 150 MHz max clock frequency, and latch-up immunity exceeding 500 mA per JESD-17 - used in radiation-tolerant avionics data latching and synchronous control registers.
For engineers reviewing the 5962-9321701QRA datasheet, 5962-9321701QRA pinout, 5962-9321701QRA application, or 5962-9321701QRA equivalent, key selection criteria include military temperature range compliance, CDIP-20 package mechanical robustness, direct-clear timing (3.3 ns min pulse width), and BiCMOS output drive capability for legacy TTL bus interfacing.
Technical Context
This device implements eight independent edge-triggered D flip-flops sharing one global asynchronous clear (CLR) and one common clock (CLK). Each stage transfers D-input data to Q-output on the positive-going clock transition, with no effect when CLK is static high or low.
Its EPIC-IIB BiCMOS process delivers low ground bounce (<1 V VOLP at 5 V), high noise immunity (100 mV hysteresis), and rail-to-rail input voltage tolerance (–0.5 V to 7 V), enabling reliable operation in noisy aerospace power environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Octal D-type flip-flop with asynchronous clear - enables synchronized 8-bit data capture and reset in control state machines. |
| Operating Temperature | –55°C to 125°C - qualified for military and space-grade systems requiring extended thermal resilience. |
| Max Clock Frequency | 150 MHz - supports high-speed digital control loops and real-time register staging in flight computers. |
| Output Drive | –32 mA IOH / 64 mA IOL - drives heavy capacitive loads and multiple TTL inputs without external buffers. |
| Propagation Delay | tPLH/tPHL = 2.5–7.5 ns - ensures tight timing margins in synchronous logic chains with minimal skew. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with regulated 5 V military power rails and tolerant of transient droop. |
| Input Hysteresis | 100 mV - suppresses false triggering from EMI-induced signal noise on clock or control lines. |
Pinout & Package
5962-9321701QRA uses a 20-pin Ceramic Dual-In-Line Package (CDIP-J), hermetically sealed for high-reliability mil-spec applications. The package measures 24.2 mm × 6.92 mm × 4.45 mm (L × W × H) with 2.54 mm lead pitch and centerline lead form.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLR | Asynchronous active-low clear - forces all Q outputs low independently of clock, critical for system initialization and fault recovery. |
| 2–9 | 1Q–8Q | Complementary registered outputs - provide latched data for downstream logic or bus drivers with fanout support. |
| 10 | GND | Signal ground reference - isolated from power ground in mixed-signal boards to minimize switching noise coupling. |
| 11–18 | 1D–8D | Data inputs - accept TTL/CMOS-compatible levels; each must meet 2.5 ns setup/1.2 ns hold before CLK↑. |
| 19 | CLK | Global positive-edge clock - triggers simultaneous update of all eight flip-flops; immune to slow edge rates (10 ns/V min). |
| 20 | VCC | +5 V supply - requires local 0.1 µF ceramic decoupling adjacent to pin to suppress BiCMOS switching transients. |
Key Features
| Feature | Design Value |
|---|---|
| Latch-up immunity | Exceeds 500 mA per JESD-17 - prevents destructive parasitic SCR activation during voltage transients in avionics power domains. |
| Output ground bounce | Typical VOLP < 1 V at 5 V/25°C - maintains signal integrity during simultaneous output switching in dense logic arrays. |
| Input voltage range | –0.5 V to 7 V - accommodates overshoot/undershoot beyond supply rails without damage or false logic states. |
| High-drive capability | 64 mA sink per output - directly interfaces with legacy TTL loads (e.g., 74LS series) without level-shifting circuitry. |
| State-of-the-art BiCMOS | EPIC-IIB process - achieves 150 MHz speed with sub-µA quiescent current, optimizing power-delay product for SWaP-constrained platforms. |
Applications
| Avionics Data Acquisition | Mission-Critical Control Logic |
|---|---|
|
Use Scenario: Capturing sensor telemetry (e.g., inertial measurement unit outputs) synchronized to a central timing reference in flight control computers. IC Role / Device Role / Timing Role: Acts as an 8-bit parallel input register, latching analog-to-digital converter outputs on precise clock edges while rejecting noise via hysteresis. Use Value: Ensures deterministic sampling alignment across multiple channels, eliminating metastability risk in safety-critical feedback loops. |
Use Scenario: Implementing watchdog timer enable/disable states and mode selection flags in radiation-hardened FPGA configuration managers. IC Role / Device Role / Timing Role: Provides glitch-free, asynchronously resettable storage for control bits governing boot sequence, safe-mode entry, and reconfiguration locks. Use Value: Guarantees atomic state transitions under single-event upset conditions due to CLR's priority over clocked behavior. |
| Secure Communication Interface | Legacy Bus Bridging |
|
Use Scenario: Holding encrypted packet headers prior to transmission over MIL-STD-1553B or RS-422 physical layers in secure comms modules. IC Role / Device Role / Timing Role: Buffers header bytes between cryptographic engine and serial interface controller, isolating timing domains with edge-triggered synchronization. Use Value: Prevents data corruption during clock domain crossing by enforcing strict setup/hold timing validated to 150 MHz operation. |
Use Scenario: Interfacing modern microcontrollers with legacy 5 V TTL backplanes in ground support equipment test fixtures. IC Role / Device Role / Timing Role: Serves as a level-translating latch between 3.3 V MCU GPIO and 5 V bus drivers, absorbing voltage mismatch and timing skew. Use Value: Eliminates need for discrete level shifters or pull-up networks, reducing BOM count and board area in retrofit designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 5962-9321701Q2A | LCCC-20 ceramic package; lower thermal resistance (θJA ≈ 90°C/W vs. CDIP's 110°C/W); identical electrical specs. | Better suited for high-vibration environments where lead flexure is a concern; requires different PCB land pattern. | Select when board-level shock resistance and thermal cycling reliability outweigh CDIP's ease of manual inspection and rework. |
| SNJ54ABT273J | Same CDIP-20 package and military temp range; identical pinout and timing; differs only in TI's internal part numbering convention. | No functional or mechanical distinction - fully interchangeable in existing designs qualified to MIL-PRF-38535 Class V. | Choose based on distributor availability or legacy BOM alignment; both meet identical QML requirements and screening levels. |
Compared with 5962-9321701QRA, the LCCC alternative offers superior thermal performance but demands tighter assembly tolerances, while SNJ54ABT273J provides identical functionality under an alternate TI military nomenclature - making it a drop-in replacement with zero redesign effort.
Availability
5962-9321701QRA is available at Aetrix Electronics and suitable for avionics data acquisition, mission-critical control logic, secure communication interface, and legacy bus bridging requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 5962-9321701QRA 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 U.S.-based semiconductor manufacturer founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.
The ABT273 family was designed specifically for military and space applications demanding radiation-tolerant, high-speed, high-drive D-type latching in harsh thermal and EMI environments.
FAQ
What is the maximum clock frequency supported by the 5962-9321701QRA?
The 5962-9321701QRA supports a maximum clock frequency of 150 MHz across its full military temperature range (–55°C to 125°C), verified per SCBS185B timing specifications with CL = 50 pF load. This rating applies to both rising-edge propagation delays (tPLH/tPHL) and setup/hold timing margins, ensuring deterministic operation in high-speed synchronous systems.
Does the 5962-9321701QRA require external pull-up resistors on its inputs?
No, the 5962-9321701QRA does not require external pull-up resistors on its inputs. Its BiCMOS inputs have defined VIH (≥2 V) and VIL (≤0.8 V) thresholds with ±1 µA leakage, and unused inputs must be held statically high or low per datasheet Note 3 - achieved via direct connection to VCC or GND, not pull-up networks.
Can the 5962-9321701QRA operate reliably at 4.5 V supply voltage?
Yes, the 5962-9321701QRA is fully specified to operate at 4.5 V VCC, meeting all recommended operating conditions including VOH ≥ 2.0 V (IOH = –32 mA), VOL ≤ 0.55 V (IOL = 64 mA), and timing parameters down to 4.5 V. This ensures compatibility with aging or drooping 5 V power supplies in fielded military platforms.
What is the absolute maximum input voltage rating for the 5962-9321701QRA?
The absolute maximum input voltage rating for the 5962-9321701QRA is –0.5 V to 7 V, as stated in the Absolute Maximum Ratings table. This allows safe operation with transient overshoot up to 7 V and undershoot down to –0.5 V, provided clamp currents (IIK ≤ –18 mA, IOK ≤ –50 mA) are not exceeded - critical for ESD-prone avionics harness interfaces.
Is the 5962-9321701QRA pin-compatible with commercial SN74ABT273 variants?
No, the 5962-9321701QRA is not pin-compatible with commercial SN74ABT273 variants. While both share the same logical function and 20-pin count, 5962-9321701QRA uses a CDIP-J package with through-hole leads and military marking, whereas SN74ABT273 variants use surface-mount packages (DB, DW, PW) or plastic DIP (N) - differing in footprint, soldering method, and thermal profile.
5962-9321701QRA 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:
- -
5962-9321701QRA FAQ
1.How can I place an order for 5962-9321701QRA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9321701QRA 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 5962-9321701QRA reliable?
The price and inventory of 5962-9321701QRA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9321701QRA is usually 5 days.
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Once your 5962-9321701QRA 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 5962-9321701QRA?
For technical support, including 5962-9321701QRA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9321701QRA requirements.
6.How does Aetrix verify that 5962-9321701QRA is sourced from the original manufacturer or authorized distributors?
All 5962-9321701QRA 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 5962-9321701QRA meets industry standards.
7.What is the process for return or replacement of 5962-9321701QRA?
All 5962-9321701QRA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9321701QRA, 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 5962-9321701QRA part is unused and in its original packaging.
Return procedure for 5962-9321701QRA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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