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Texas Instruments 5962-9557501QEA
- Part No.:
- 5962-9557501QEA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
5962-9557501QEA.pdf
- Description:
- SN5476 DUAL J-K FLIP-FLOPS WITH
- Quantity:
- Payment:
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Inventory:4,189
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Product details
Overview
5962-9557501QEA from Texas Instruments is a dual J-K flip-flop with independent preset and clear inputs, TTL-compatible logic levels, 16-pin CDIP package, -55°C to +125°C operating temperature range, and designed for military-grade synchronous digital control in avionics timing and radar pulse sequencing.
For engineers reviewing the 5962-9557501QEA datasheet, 5962-9557501QEA pinout, 5962-9557501QEA application, or 5962-9557501QEA equivalent, key selection criteria include its dual-edge-triggered J-K functionality, guaranteed operation across extended temperature, CDIP hermetic packaging, and compatibility with legacy 5476 logic families in high-reliability systems.
Technical Context
This device implements two independent edge-triggered J-K flip-flops sharing no internal logic; each features asynchronous active-low preset (PR̄) and clear (CLR̄) inputs, complementary Q and Q̄ outputs, and clocked on the falling edge of CLK. No master-slave or transparent latch behavior is present.
It operates strictly as a TTL-compatible bipolar logic device-no CMOS input thresholds, no Schmitt-trigger inputs, and no internal pull-ups/pull-downs. Propagation delay (tPLH/tPHL) is specified at 25 ns max under VCC = 5V ± 0.5V and TA = 25°C, with output drive capability of -0.8 mA (IOH) and 16 mA (IOL).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | TTL (bipolar transistor-transistor logic), compatible with SN5476/SN54LS76A specifications |
| Function | Dual independent J-K flip-flop, negative-edge triggered, with asynchronous PR̄/CLR̄ |
| Operating Temperature | -55°C to +125°C - qualified per MIL-PRF-38535 Class Q for space/military use |
| Package | 16-pin Ceramic Dual In-line Package (CDIP), hermetically sealed, J drawing |
| Supply Voltage | VCC = 4.5 V to 5.5 V - requires regulated 5V rail; no wide-VCC tolerance |
| Max Clock Frequency | 25 MHz typical - limited by tPLH/tPHL ≤ 25 ns and setup/hold timing constraints |
Pinout & Package
16-pin Ceramic Dual In-line Package (CDIP), hermetic, through-hole mounting, J package drawing per TI specification. Pin 1 marked with notch or dot; pins numbered counter-clockwise from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | J, K, CLK, CLR̄ for Flip-Flop A | Independent control inputs for first flip-flop; CLR̄ active-low asynchronous reset |
| 5, 6 | QA, Q̄A | Complementary outputs of Flip-Flop A; fan-out up to 10 TTL loads |
| 7 | GND | Signal and power ground reference; must be low-inductance connection |
| 8, 9, 10, 11 | J, K, CLK, CLR̄ for Flip-Flop B | Independent control inputs for second flip-flop; no shared clock or reset |
| 12, 13 | QB, Q̄B | Complementary outputs of Flip-Flop B; electrically isolated from Flip-Flop A |
| 14 | VCC | +5 V DC supply; bypass capacitor (0.1 µF ceramic) required at pin |
| 15, 16 | PR̄A, PR̄B | Active-low asynchronous preset inputs; override clock and J/K states when asserted |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent J-K flip-flops | No internal coupling - enables separate clock domains or asynchronous state machines |
| Falling-edge clock triggering | Ensures deterministic sampling at clock transition; eliminates metastability risk from slow edges |
| Asynchronous preset and clear | Allows immediate state initialization without waiting for next clock edge - critical for system boot/reset |
| MIL-PRF-38535 Class Q qualification | Guaranteed reliability for aerospace, defense, and downhole applications with full lot traceability |
| Hermetic CDIP packaging | Prevents moisture ingress and corrosion; supports long-term storage and 10+ year field life |
Applications
| Avionics Timing Sequencer | Radar Pulse Generator |
|---|---|
Use Scenario: Generating synchronized timing windows for flight control computer interrupt arbitration and sensor sampling windows. IC Role / Device Role / Timing Role: Dual J-K flip-flop provides precise, edge-aligned enable/disable signals for ADC sampling gates and DAC update strobes. Use Value: Guaranteed -55°C to +125°C operation ensures timing integrity across aircraft altitude and thermal cycles without derating. | Use Scenario: Forming stable, jitter-free trigger sequences for magnetron firing and receiver blanking in pulsed radar transceivers. IC Role / Device Role / Timing Role: Flip-flop A sets pulse width; Flip-flop B controls inter-pulse interval - both driven from common master clock. Use Value: Asynchronous preset/clear allows immediate reinitialization after fault detection, meeting MIL-STD-461E EMI recovery requirements. |
| Nuclear Instrumentation System | Secure Communication Sync Unit |
Use Scenario: Implementing radiation-hardened counters and state registers in neutron flux monitoring electronics. IC Role / Device Role / Timing Role: Each flip-flop acts as a hardened bit cell in a 2-bit modulo-4 counter driving scintillation detector gate timing. Use Value: Hermetic CDIP package prevents ionizing radiation-induced leakage current degradation over 20-year deployment. | Use Scenario: Synchronizing encryption engine clocks with RF carrier phase in Type 1 cryptographic modules. IC Role / Device Role / Timing Role: Provides deterministic clock division and phase alignment between baseband and RF sections using J-K toggle mode. Use Value: MIL-qualified temperature stability ensures <±100 ppm timing drift across environmental stress screening (ESS) profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual J-K flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ5476J | Same die, identical electrical specs, CDIP package; differs only in device marking and test flow per JAN spec | No functional difference; used interchangeably in Class B/Q builds where JAN labeling required | Select SNJ5476J if documentation requires JAN-standard part number traceability |
| JM38510/00204BEA | Identical logic function and pinout; certified to MIL-PRF-38535 Class B (not Class Q); lower screening rigor | Suitable for non-critical subsystems where full Class Q burn-in and radiation testing not mandated | Choose JM38510/00204BEA for cost-sensitive defense programs with Class B acceptance |
Compared with SNJ5476J and JM38510/00204BEA, 5962-9557501QEA delivers full Class Q conformance including extended life testing, lot traceability to wafer level, and enhanced screening for single-event latchup immunity - making it the only choice for manned spacecraft and strategic weapon systems.
Availability
5962-9557501QEA is available at Aetrix Electronics and suitable for avionics timing sequencers, radar pulse generators, nuclear instrumentation systems, and secure communication sync units requiring stable component supply under extended temperature and hermetic reliability requirements.
Supply support for 5962-9557501QEA 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 aerospace, defense, and industrial markets.
The 5962-9557501QEA belongs to TI's military-grade TTL logic family, engineered specifically for deterministic digital control in safety-critical systems where parameter stability across extreme environments is non-negotiable.
FAQ
What is the logic family and voltage compatibility of the 5962-9557501QEA?
The 5962-9557501QEA is a TTL-compatible bipolar logic device requiring VCC = 4.5 V to 5.5 V. It interfaces directly with legacy SN5476 and SN54LS76A circuits, with input thresholds matching standard TTL (VIL ≤ 0.8 V, VIH ≥ 2.0 V) and output drive of -0.8 mA / 16 mA. It is not compatible with CMOS or LVTTL voltage levels without level-shifting. The 5962-9557501QEA does not support mixed-voltage operation.
Does the 5962-9557501QEA support master-slave or transparent latch modes?
No, the 5962-9557501QEA implements only edge-triggered J-K flip-flop behavior on the falling clock edge. It has no master-slave configuration, no transparent mode, and no gated clock option. Its operation is strictly synchronous with negative-edge sampling and asynchronous preset/clear override. This architecture is defined in the SDLS121 datasheet and confirmed across all SN5476/SN54LS76A variants. The 5962-9557501QEA does not emulate latch or register behavior.
What is the maximum operating frequency of the 5962-9557501QEA?
The 5962-9557501QEA has a typical maximum clock frequency of 25 MHz, derived from its maximum propagation delay (tPLH/tPHL ≤ 25 ns) and setup/hold time requirements (tsu = 20 ns, th = 5 ns). This limit applies across the full -55°C to +125°C range. Operation above 25 MHz is not characterized or guaranteed. The 5962-9557501QEA is not rated for GHz-range or high-speed serial timing applications.
Is the 5962-9557501QEA RoHS compliant?
No, the 5962-9557501QEA is not RoHS compliant. As a Class Q military device in hermetic CDIP packaging, it contains leaded solder seals and leaded finish per MIL-PRF-38535 requirements. TI classifies it as "RoHS Exempt" under EU Directive 2011/65/EU Annex III exemption 7a. It is intended for exempted defense/aerospace applications only and must be handled per Pb-containing material protocols. The 5962-9557501QEA is not suitable for commercial RoHS-restricted assemblies.
How does the 5962-9557501QEA differ from commercial SN74LS76A devices?
The 5962-9557501QEA differs from SN74LS76A in three critical ways: (1) extended temperature range (-55°C to +125°C vs. 0°C to +70°C), (2) hermetic CDIP packaging (vs. plastic DIP), and (3) full MIL-PRF-38535 Class Q qualification including radiation hardness assurance and lot traceability. Electrical parameters are aligned with SN5476, not SN74LS76A. The 5962-9557501QEA is not a drop-in replacement for SN74LS76A in commercial designs.
5962-9557501QEA 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:
- -
5962-9557501QEA FAQ
1.How can I place an order for 5962-9557501QEA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9557501QEA 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 5962-9557501QEA reliable?
The price and inventory of 5962-9557501QEA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9557501QEA is usually 5 days.
3.What payment methods are accepted for 5962-9557501QEA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-9557501QEA transactions.
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4.How is shipping managed for 5962-9557501QEA?
5962-9557501QEA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-9557501QEA 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 5962-9557501QEA?
For technical support, including 5962-9557501QEA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9557501QEA requirements.
6.How does Aetrix verify that 5962-9557501QEA is sourced from the original manufacturer or authorized distributors?
All 5962-9557501QEA 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 5962-9557501QEA meets industry standards.
7.What is the process for return or replacement of 5962-9557501QEA?
All 5962-9557501QEA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9557501QEA, 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 5962-9557501QEA part is unused and in its original packaging.
Return procedure for 5962-9557501QEA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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