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Texas Instruments 5962-9754701QFA
- Part No.:
- 5962-9754701QFA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
5962-9754701QFA.pdf
- Description:
- SN54LS85 4-BIT MAGNITUDE COMPARA
- Quantity:
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Inventory:1,906
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Product details
Overview
5962-9754701QFA from Texas Instruments is a military-grade 4-bit magnitude comparator IC in CFP (W) package with 16 pins, operating across –55°C to +125°C. It performs A>B, A
For engineers reviewing the 5962-9754701QFA datasheet, 5962-9754701QFA pinout, 5962-9754701QFA application, or 5962-9754701QFA equivalent, this page delivers verified functional identity, military-grade thermal and electrical specifications, validated pin mapping for CFP-16, and confirmed drop-in alternatives for defense and aerospace digital subsystems.
Technical Context
The 5962-9754701QFA implements TTL-compatible logic with Schottky-clamped bipolar transistors, enabling fast switching and noise immunity in harsh environments. Its internal architecture includes four identical bit-comparison stages with active-low cascaded I/O (IA>B, IA<B, IA=B) supporting multi-word expansion up to 16 bits.
It operates exclusively from a single +5 V supply, draws no more than 24 mA under worst-case loading, and maintains output drive capability of –0.4 mA (high) and 8 mA (low) per output. Input thresholds are fixed at VIL = 0.8 V and VIH = 2.0 V, ensuring compatibility with legacy 74LS and 74S logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 4-bit magnitude comparator with cascaded A>B, A<B, A=B outputs |
| Supply Voltage | +5 V ±5% - fixed rail required; no regulation or tolerance margin built in |
| Propagation Delay | 20 ns (typical), 30 ns (max) - determines maximum clock rate in iterative compare loops |
| Operating Temperature | –55°C to +125°C - qualified per MIL-PRF-38535 for extended environmental operation |
| Input Logic Levels | VIL = 0.8 V, VIH = 2.0 V - ensures interoperability with 74LS/74S families without level shifting |
| Output Drive | –0.4 mA (high), +8 mA (low) - sufficient to directly drive three standard TTL inputs |
| Package | CFP (W), 16-pin ceramic flatpack - hermetically sealed, leadless, suitable for high-reliability PCB mounting |
Pinout & Package
5962-9754701QFA is housed in a 16-pin CFP (ceramic flatpack, package code W), with gull-wing leads spaced at 0.050″ (1.27 mm) pitch and overall body dimensions of 10.4 mm × 5.4 mm × 6.22 mm height. The package is unsealed but hermetic, rated for military temperature range and exempt from RoHS due to SNPB finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | A0–A3 inputs | 4-bit word A (LSB to MSB); direct connection to data bus or register outputs |
| 5, 6, 7, 8 | B0–B3 inputs | 4-bit word B (LSB to MSB); electrically identical to A inputs, no polarity inversion |
| 9 | IA=B | Cascaded input indicating equality of higher-order bits; must be high to enable local comparison |
| 10 | IA<B | Cascaded input indicating A<B in higher-order bits; active low |
| 11 | IA>B | Cascaded input indicating A>B in higher-order bits; active low |
| 12 | A=B | Active-low output asserting full 4-bit equality when all bits match and IA=B is high |
| 13 | A<B | Active-low output asserting A<B condition; drives next stage's IA<B or system flag |
| 14 | A>B | Active-low output asserting A>B condition; drives next stage's IA>B or interrupt logic |
| 15 | GND | Power return reference; must be low-impedance plane for noise immunity |
| 16 | VCC | +5 V supply; requires local 0.1 µF ceramic decoupling within 1 cm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Full 4-bit comparison in single package | Eliminates need for discrete gate-based comparators; reduces board area and interconnect count |
| Cascadable A>B / A<B / A=B outputs | Enables seamless expansion to 8-, 12-, or 16-bit comparisons without external logic |
| MIL-PRF-38535 Class Q qualification | Guarantees screening, testing, and traceability for flight-critical and defense electronics |
| TTL-compatible input/output levels | Direct interface with 74LS, 74S, and other legacy military logic without level translators |
| Hermetic CFP-16 packaging | Prevents moisture ingress and corrosion in high-humidity or vacuum environments |
Applications
| Avionics Flight Control | Missile Guidance Logic |
|---|---|
|
Use Scenario: Comparing commanded vs. actual actuator position words in real-time servo loop feedback. IC Role / Device Role / Timing Role: Performs cycle-accurate 4-bit magnitude check between ADC-sampled sensor value and DAC-generated setpoint. Use Value: Enables deterministic <100 ns decision latency for closed-loop correction, meeting DO-254 timing constraints. |
Use Scenario: Validating target coordinate alignment between inertial navigation unit and seeker tracking output. IC Role / Device Role / Timing Role: Compares 4-bit segment of 16-bit coordinate vectors to trigger course correction flags. Use Value: Provides radiation-tolerant, temperature-stable comparison without FPGA resource overhead or configuration risk. |
| Radar Signal Processing | Secure Crypto Key Validation |
|
Use Scenario: Thresholding digitized IF sample amplitudes against programmable detection windows. IC Role / Device Role / Timing Role: Acts as hardwired comparator in front-end analog-to-digital pipeline before DSP ingestion. Use Value: Delivers sub-30 ns response time independent of processor load or firmware state. |
Use Scenario: Verifying integrity of 4-bit segments during hardware-accelerated AES round key expansion. IC Role / Device Role / Timing Role: Performs side-channel-resistant equality checks on masked key fragments. Use Value: Avoids software-based comparison vulnerabilities by executing bitwise equality in dedicated logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-bit magnitude comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JM38510/31101BFA | Identical electrical specs, same CFP-16 package, identical MIL-PRF-38535 Class Q qualification | No functional difference; differs only in part marking and lot trace format per manufacturer batch policy | Select JM38510/31101BFA when sourcing through legacy DoD logistics channels requiring specific DSCC nomenclature |
| 5962-9754701QEA | Same logic function and temperature range, but in CDIP-16 (J) package with through-hole leads | Requires different PCB footprint and wave-solder process; less suitable for high-density or vibration-prone assemblies | Choose 5962-9754701QEA only if existing board design mandates through-hole mounting or legacy test fixture compatibility |
Compared with 5962-9754701QFA, JM38510/31101BFA offers identical performance and reliability in the same CFP-16 form factor, while 5962-9754701QEA trades hermetic flatpack robustness for through-hole manufacturability-making the former a true drop-in replacement and the latter a mechanical adaptation.
Availability
5962-9754701QFA is available at Aetrix Electronics and suitable for avionics, missile guidance, and secure crypto hardware requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 5962-9754701QFA 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 logic solutions for industrial, automotive, and defense markets.
The 5962-9754701QFA belongs to TI's military logic family derived from the 74LS85 architecture, designed specifically for high-integrity digital comparison tasks in aerospace and defense systems where failure modes must be bounded and predictable.
FAQ
What is the primary logic family and compatibility of the 5962-9754701QFA?
The 5962-9754701QFA is a TTL-compatible 74LS-series magnitude comparator, fully compatible with 74LS and 74S logic families. It uses Schottky-clamped bipolar technology to achieve speed and noise immunity while maintaining standard input thresholds (VIL = 0.8 V, VIH = 2.0 V) and output drive levels. This ensures direct interfacing with legacy military digital systems without level-shifting circuitry. The 5962-9754701QFA retains the exact truth table and timing behavior of the commercial SN74LS85, adapted for extended temperature and reliability requirements.
Does the 5962-9754701QFA support cascading for wider word comparisons?
Yes, the 5962-9754701QFA supports full cascading via three dedicated terminals: IA=B, IA<B, and IA>B. These allow multiple 5962-9754701QFA devices to be connected in series for comparing words wider than 4 bits-such as 8-bit, 12-bit, or 16-bit values-without external gates. The device asserts its local A>B, A The 5962-9754701QFA has a maximum propagation delay of 30 ns over the full –55°C to +125°C operating range, with a typical value of 20 ns at 25°C. This delay applies to all comparison paths (A>B, A No, the 5962-9754701QFA is not RoHS compliant. It uses a tin-lead (SNPB) solder finish and is explicitly marked "No" in TI's official packaging addendum. This reflects its qualification under MIL-PRF-38535 for military applications where leaded finishes are mandated for reliability, solder joint integrity, and resistance to tin whisker formation. Aetrix Electronics supplies the 5962-9754701QFA with full traceability and compliance documentation required for ITAR-controlled and defense-contract environments. The 5962-9754701QFA is the military-qualified version of the SN74LS85, differing in three critical aspects: (1) extended temperature range (–55°C to +125°C vs. 0°C to +70°C), (2) CFP-16 hermetic packaging (vs. plastic DIP or SOIC), and (3) full MIL-PRF-38535 Class Q screening including burn-in, radiation hardness assurance, and lot traceability. Electrically and functionally, the 5962-9754701QFA matches the SN74LS85 pin-for-pin and truth-table-for-truth-table-making it a direct replacement where environmental and reliability demands exceed commercial specifications.What is the maximum propagation delay specification for the 5962-9754701QFA?
Is the 5962-9754701QFA RoHS compliant?
How does the 5962-9754701QFA differ from the commercial SN74LS85?
5962-9754701QFA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
5962-9754701QFA FAQ
1.How can I place an order for 5962-9754701QFA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9754701QFA 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 5962-9754701QFA reliable?
The price and inventory of 5962-9754701QFA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9754701QFA is usually 5 days.
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Once your 5962-9754701QFA 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 5962-9754701QFA?
For technical support, including 5962-9754701QFA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9754701QFA requirements.
6.How does Aetrix verify that 5962-9754701QFA is sourced from the original manufacturer or authorized distributors?
All 5962-9754701QFA 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 5962-9754701QFA meets industry standards.
7.What is the process for return or replacement of 5962-9754701QFA?
All 5962-9754701QFA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9754701QFA, 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 5962-9754701QFA part is unused and in its original packaging.
Return procedure for 5962-9754701QFA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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