Texas Instruments 5962-7603901VFA
- Part No.:
- 5962-7603901VFA
- Manufacturer:
- Texas Instruments
- Category:
- Multivibrators
- Package:
- -
- Datasheet:
-
5962-7603901VFA.pdf
- Description:
- SN54LS123-SP RETRIGGERABLE MONOS
- Quantity:
- Payment:

- Shipping:

Inventory:4,573
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Product details
Overview
5962-7603901VFA from Texas Instruments is a retriggerable monostable multivibrator IC in ceramic flatpack (CFP) package with 16 pins, operating across -55°C to +125°C, featuring dual independent monostable circuits with external timing control via RC networks and TTL-compatible inputs/outputs. It is used in military-grade pulse shaping, debouncing, and delay generation within avionics timing subsystems.
For engineers reviewing the 5962-7603901VFA datasheet, 5962-7603901VFA pinout, 5962-7603901VFA application, or 5962-7603901VFA equivalent, this device serves as a radiation-tolerant, high-reliability timing element for deterministic pulse width control in safety-critical embedded control and test instrumentation where extended temperature range and CFP hermeticity are mandatory.
Technical Context
The 5962-7603901VFA implements two identical retriggerable monostable multivibrators, each with separate A and B trigger inputs, Q and Q̅ outputs, and dedicated RC timing terminals. Each section operates independently with no internal coupling, supporting asynchronous retriggering during an active output pulse without resetting the timing cycle.
It uses bipolar TTL circuitry with Schmitt-trigger input thresholds on both A and B inputs, enabling noise-immune edge detection. Timing accuracy depends solely on external R and C values, with nominal output pulse width tW = 0.30 × REXT × CEXT (in seconds, with R in ohms and C in farads), and guaranteed minimum pulse width of 25 ns at VCC = 5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual retriggerable monostable multivibrator - enables precise, restartable one-shot pulses per channel without requiring external reset logic. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard military-grade 5 V power rails and tolerant of supply ripple up to ±5%. |
| Operating Temperature | -55°C to +125°C - qualified for extended-range operation in airborne, space, and ground vehicle electronics. |
| Output Drive | IOH = -0.4 mA / IOL = 8 mA at VCC = 5 V - sufficient to directly drive TTL loads or interface with 74LS-series inputs without buffering. |
| Propagation Delay | tPLH/tPHL ≤ 45 ns - supports high-speed timing coordination in sub-20 MHz digital control loops. |
| Timing Accuracy | ±20% over temperature and voltage - determined by external RC component tolerances; no internal oscillator or trimming required. |
Pinout & Package
Ceramic Flatpack (CFP) package per drawing W, 16-pin, hermetically sealed, lead-finish TBD per TI specification, MSL N/A (non-moisture-sensitive due to ceramic construction).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Section 1 inputs/outputs/timing | Pins 1–2: A1/B1 triggers; Pin 3: Q1; Pin 4: Q̅1; Pins 5–6: R1/C1 timing network; Pin 7: GND; Pin 8: VCC. |
| 9, 10, 11, 12, 13, 14, 15, 16 | Section 2 inputs/outputs/timing | Pins 9–10: A2/B2 triggers; Pin 11: Q2; Pin 12: Q̅2; Pins 13–14: R2/C2 timing network; Pin 15: GND; Pin 16: VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Retriggerable operation | Each monostable accepts new triggers during active output, extending pulse width - eliminates need for external retrigger arbitration logic. |
| Independent dual channels | No shared resources between sections - allows concurrent, uncorrelated timing events with isolated RC networks. |
| TTL-compatible I/O | Direct interface with legacy 74xx/54xx logic families without level-shifting or pull-up resistors. |
| Hermetic CFP packaging | Guarantees long-term reliability in high-humidity, high-vibration, or vacuum environments typical of aerospace deployments. |
Applications
| Avionics Pulse Conditioning | Missile Guidance Signal Debounce |
|---|---|
Use Scenario: Converting noisy discrete sensor switch closures into clean, fixed-width strobes for flight control computer interrupt synchronization. IC Role / Device Role / Timing Role: Dual monostable acts as synchronized pulse stretcher and edge cleaner for redundant proximity sensors. Use Value: Ensures deterministic 50–200 ns pulse width regardless of contact bounce duration, meeting DO-254 timing assurance requirements. | Use Scenario: Debouncing mechanical launch interlock switches subject to shock-induced chatter during rocket motor ignition. IC Role / Device Role / Timing Role: Retriggerable monostable suppresses multiple false triggers while preserving first valid activation edge. Use Value: Prevents spurious arming signals by enforcing ≥100 µs minimum stable input hold time before output assertion. |
| Ground Test Equipment Timing | Nuclear Command Interface Delay |
Use Scenario: Generating calibrated delay intervals between stimulus and measurement capture in automated BIT (Built-In Test) systems. IC Role / Device Role / Timing Role: Precision one-shot provides repeatable, RC-programmable delays for signal path validation. Use Value: Enables traceable delay calibration from 100 ns to 10 ms using MIL-PRF-123 capacitors and wirewound resistors. | Use Scenario: Inserting fail-safe timing guard bands between authorization command receipt and warhead enable signal release. IC Role / Device Role / Timing Role: Dual-section monostable enforces sequential, non-bypassable timing gates in secure command chain. Use Value: Meets MIL-STD-1553B latency constraints and provides hardware-enforced temporal separation of critical functions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar retriggerable monostable multivibrator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS123W | Identical electrical specs and CFP package; same pinout and marking 'SNJ54LS123W'; manufactured under JANTXV spec with full MIL-PRF-38535 screening. | Qualified to same QML Class V requirements but lacks 5962-7603901VFA's specific DSCC drawing compliance and lot traceability per 5962-76039 spec. | Select when full DSCC source control documentation is not required but JANTXV-level reliability is acceptable. |
| JM38510/31401BFA | Same CFP-16 package and -55°C to +125°C range; functionally identical dual retriggerable monostable; differs only in device marking and DSCC drawing number. | Approved under different DSCC drawing (31401 vs. 76039); identical qualification testing, but procurement must align with specific program drawing requirements. | Select when sourcing against drawing 31401 is authorized; otherwise, 5962-7603901VFA remains mandatory for 76039-compliant programs. |
Compared with SNJ54LS123W and JM38510/31401BFA, the 5962-7603901VFA provides strict adherence to DSCC drawing 76039, including unique lot traceability, enhanced burn-in, and configuration-controlled manufacturing - essential for DoD programs requiring 5962-series pedigree and 100% test data retention.
Availability
5962-7603901VFA is available at Aetrix Electronics and suitable for avionics subsystems, missile guidance interfaces, and nuclear command-and-control equipment requiring stable component supply under extended temperature and radiation-hardened conditions.
Supply support for 5962-7603901VFA 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 company founded in 1930, specializing in analog, embedded processing, and high-reliability military/aerospace components with over 90 years of process and qualification expertise.
The 5962-7603901VFA belongs to TI's 54LS logic family designed specifically for high-reliability defense and space applications, emphasizing radiation tolerance, hermetic packaging, and full MIL-PRF-38535 Class V qualification.
FAQ
What is the primary function of the 5962-7603901VFA?
The 5962-7603901VFA is a dual retriggerable monostable multivibrator that generates precise, externally programmable output pulses in response to input triggers. Each of its two independent sections accepts asynchronous retriggering during an active output period, allowing dynamic pulse extension - a key capability for noise-immune timing in mission-critical systems where the 5962-7603901VFA is deployed.
Does the 5962-7603901VFA require external timing components?
Yes, the 5962-7603901VFA requires external resistor and capacitor networks connected to dedicated timing pins (R1/C1 and R2/C2) to set output pulse width. The nominal relationship is tW = 0.30 × REXT × CEXT, with timing accuracy dependent on component tolerances - no internal oscillator or trim circuitry is present in the 5962-7603901VFA.
Is the 5962-7603901VFA pin-compatible with commercial SN74LS123 variants?
No - the 5962-7603901VFA uses a 16-pin CFP (W) package with dual GND (pins 7 and 15) and dual VCC (pins 8 and 16), whereas commercial SN74LS123 variants use 16-pin PDIP or SOIC packages with single GND/VCC. Pin assignments differ, and the 5962-7603901VFA is not a drop-in replacement for SN74LS123N or SN74LS123DR without PCB redesign.
What temperature range is supported by the 5962-7603901VFA?
The 5962-7603901VFA is fully specified and tested over -55°C to +125°C, meeting MIL-STD-883 requirements for extreme environmental operation. This extended range is enabled by its ceramic flatpack construction and bipolar TTL process, distinguishing it from commercial 0°C to +70°C variants like SN74LS123N - a defining characteristic of the 5962-7603901VFA.
How does retriggering work in the 5962-7603901VFA?
In the 5962-7603901VFA, applying a valid trigger (A or B input transition) during an active output pulse resets the internal timing cycle and extends the output width from the new trigger edge. This retriggerable behavior occurs independently per section and requires no external reset signal - a core functional attribute confirmed in the SDLS043 datasheet for the 5962-7603901VFA.
5962-7603901VFA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Independent Circuits:
- -
- Schmitt Trigger Input:
- -
- Propagation Delay:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-7603901VFA FAQ
1.How can I place an order for 5962-7603901VFA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-7603901VFA 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 5962-7603901VFA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-7603901VFA is usually 5 days.
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5.How can I obtain technical support or documentation for 5962-7603901VFA?
For technical support, including 5962-7603901VFA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-7603901VFA requirements.
6.How does Aetrix verify that 5962-7603901VFA is sourced from the original manufacturer or authorized distributors?
All 5962-7603901VFA 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 5962-7603901VFA meets industry standards.
7.What is the process for return or replacement of 5962-7603901VFA?
All 5962-7603901VFA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-7603901VFA, 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 5962-7603901VFA part is unused and in its original packaging.
Return procedure for 5962-7603901VFA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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