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Texas Instruments JM38510/65308BFA
- Part No.:
- JM38510/65308BFA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
JM38510/65308BFA.pdf
- Description:
- D FLIP-FLOP, HC/UH SERIES, 4-BIT
- Quantity:
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Inventory:2,698
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Product details
Overview
JM38510/65308BFA from Texas Instruments is a military-grade quad D-type positive-edge-triggered flip-flop with complementary outputs and direct clear (CLR), operating across −55°C to 125°C, featuring 2 V to 6 V supply range, 13 ns typical propagation delay at 5 V, ±4-mA output drive, and low 80-µA max ICC - used in radiation-tolerant buffer/storage register designs for aerospace avionics.
For engineers reviewing the JM38510/65308BFA datasheet, JM38510/65308BFA pinout, JM38510/65308BFA application, or JM38510/65308BFA equivalent, key selection criteria include its CFP package, MIL-PRF-38535 Class B qualification, guaranteed operation over extended temperature, direct clear functionality, and compatibility with HC logic families in high-reliability timing and data storage circuits.
Technical Context
This device implements four independent D-type latches synchronized to the rising edge of CLK, each with true and complemented Q/Q̅ outputs and a shared asynchronous active-low CLR input. It uses silicon-gate CMOS technology for low power and high noise immunity.
All inputs meet defined VIH/VIL thresholds across 2–6 V VCC, with setup/hold times of 20 ns (at 4.5 V) and pulse width requirements of 16 ns for CLK and CLR. Output drive capability remains stable at ±4 mA under 4.5 V, supporting up to 10 LSTTL loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - supports mixed-voltage system interfacing and battery-backed operation in harsh environments |
| Propagation Delay (tpd) | 13 ns typical at VCC = 5 V - enables reliable 25 MHz clock operation in synchronous logic chains |
| Output Drive Current | ±4 mA at VCC = 4.5 V - sufficient to directly drive 10 LSTTL inputs without buffering |
| Quiescent Current (ICC) | 80 µA max at VCC = 6 V - ensures ultra-low static power in always-on spaceborne subsystems |
| Operating Temperature | −55°C to +125°C - qualified for use in missile guidance, satellite payload, and engine control units |
| Input Leakage Current | 1 µA max - minimizes signal integrity risk in high-impedance control paths |
| Logic Family | High-Speed CMOS (HC) - provides TTL-compatible voltage thresholds with CMOS power efficiency |
Pinout & Package
Package: 16-pin Ceramic Flatpack (CFP), hermetically sealed, lead finish A42, MSL N/A - designed for long-term reliability in vacuum and thermal cycling environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLR | Asynchronous active-low clear input - resets all four flip-flops independently of clock |
| 2 | 1Q | True output of first flip-flop - provides registered data path for storage or feedback |
| 3 | 1Q̅ | Complement output of first flip-flop - enables differential signaling or inverted logic paths |
| 4 | 1D | Data input for first flip-flop - sampled on rising CLK edge per HC timing specification |
| 5 | 2D | Data input for second flip-flop - shares same timing constraints as 1D |
| 6 | 2Q | True output of second flip-flop - supports parallel register expansion |
| 7 | 2Q̅ | Complement output of second flip-flop - allows dual-rail output routing without external inverters |
| 8 | GND | Ground reference - must be low-inductance connection for noise immunity in analog-adjacent systems |
| 9 | VCC | Positive supply - decoupling capacitor required within 1 cm for transient current handling |
| 10 | 4Q | True output of fourth flip-flop - completes full 4-bit register set |
| 11 | 4Q̅ | Complement output of fourth flip-flop - supports full dual-rail interface capability |
| 12 | 4D | Data input for fourth flip-flop - aligned with other D inputs for synchronous loading |
| 13 | 3D | Data input for third flip-flop - enables 4-bit parallel-in shift register configuration |
| 14 | 3Q | True output of third flip-flop - provides mid-register access point |
| 15 | 3Q̅ | Complement output of third flip-flop - maintains consistent dual-output architecture |
| 16 | CLK | Clock input - rising-edge sensitive; requires monotonic transition and <400 ns rise/fall time at 6 V |
Key Features
| Feature | Design Value |
|---|---|
| Quad D-type flip-flops with complementary outputs | Enables compact 4-bit storage with native Q/Q̅ pairs - eliminates need for external inverters in toggle or differential applications |
| Direct asynchronous clear (CLR) | Allows immediate reset of entire register without waiting for clock edge - critical for fault recovery in safety-critical systems |
| Wide 2 V to 6 V supply range | Permits interoperability with legacy 5 V TTL, modern 3.3 V logic, and battery-backed 2.5 V domains in single-board designs |
| Low 80 µA max ICC | Reduces thermal load and extends battery life in unattended remote sensors and telemetry modules |
| MIL-PRF-38535 Class B qualification | Guarantees screening, testing, and traceability per military reliability standards - required for flight hardware acceptance |
Applications
| Avionics Data Buffering | Satellite Telemetry Registers |
|---|---|
|
Use Scenario: Capturing and holding sensor readings (e.g., gyroscope, pressure, temperature) prior to serial transmission via RS-422 in airborne inertial measurement units. IC Role / Device Role / Timing Role: Synchronous 4-bit storage register with simultaneous read/write enable via CLK and CLR - acts as interface latch between analog front-end and UART controller. Use Value: Dual-rail outputs allow direct connection to differential line drivers; wide VCC range accommodates mixed 3.3 V/5 V board architecture without level shifters. |
Use Scenario: Storing housekeeping telemetry words (voltage, current, temperature) in low-power satellite subsystems where duty-cycled operation demands minimal quiescent current. IC Role / Device Role / Timing Role: Low-power 4-bit register providing glitch-free state retention during sleep/wake transitions - CLR ensures deterministic startup state. Use Value: 80 µA max ICC enables multi-year battery operation; −55°C to +125°C rating ensures functionality during orbital thermal cycling. |
| Missile Guidance Pattern Generation | Radiation-Hardened Control Logic |
|
Use Scenario: Generating precise timing sequences for actuator firing commands in solid-fuel rocket motor control, requiring deterministic edge-aligned outputs. IC Role / Device Role / Timing Role: Edge-triggered D flip-flop array implementing finite-state machine registers - CLK synchronizes command execution to inertial navigation updates. Use Value: 13 ns tpd ensures sub-25 MHz timing margin; complementary outputs drive matched delay lines for phase-controlled pulse generation. |
Use Scenario: Implementing watchdog timer reload logic and status flag storage in nuclear reactor monitoring systems exposed to ionizing radiation. IC Role / Device Role / Timing Role: Radiation-tolerant storage element preserving critical fault flags and reset conditions - CLR provides hard reset after SEU detection. Use Value: CFP ceramic package and Class B screening provide proven resistance to total ionizing dose (TID) and single-event effects (SEE) in high-radiation zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54HC175W | Same CFP package, identical pinout and electrical specs, but rated per MIL-STD-883 not MIL-PRF-38535 Class B | Lacks Class B conformance testing (e.g., burn-in, lot acceptance test); suitable for non-flight prototypes or ground support equipment | Select SNJ54HC175W only when full flight qualification is unnecessary and cost sensitivity outweighs long-term reliability assurance |
| JM38510/65308BEA | Identical functionality and qualification, but in CDIP (J) package instead of CFP (W); larger footprint and lower thermal resistance | Better suited for through-hole prototyping or legacy board rework where CFP reflow is unavailable; less robust against mechanical shock | Choose JM38510/65308BEA when board assembly infrastructure favors DIP sockets or manual soldering, and vibration environment is moderate |
Compared with SNJ54HC175W and JM38510/65308BEA, JM38510/65308BFA delivers verified Class B reliability in the most compact hermetic CFP form factor - making it the sole choice for spaceflight-qualified 4-bit register functions where size, radiation tolerance, and certification rigor are jointly constrained.
Availability
JM38510/65308BFA is available at Aetrix Electronics and suitable for aerospace avionics, satellite telemetry, and missile guidance systems requiring stable component supply across extended temperature and radiation-exposed environments.
Supply support for JM38510/65308BFA 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 specializing in analog, embedded processing, and high-reliability logic solutions for defense, space, and industrial markets.
JM38510/65308BFA belongs to TI's military logic portfolio, designed specifically to meet MIL-PRF-38535 Class B requirements for high-reliability digital storage in mission-critical aerospace and defense electronics.
FAQ
What is the maximum clock frequency supported by JM38510/65308BFA?
JM38510/65308BFA supports up to 25 MHz at VCC = 4.5 V and 29 MHz at VCC = 6 V under recommended operating conditions. These values derive from measured fmax with CL = 50 pF and 50% duty cycle, ensuring setup/hold timing margins are maintained across the full −55°C to +125°C range. The 13 ns typical tpd confirms timing feasibility for these frequencies.
Does JM38510/65308BFA require external pull-up or pull-down resistors on unused inputs?
Yes - all unused inputs of JM38510/65308BFA must be tied to VCC or GND to prevent floating states that could cause excessive ICC or metastability. This requirement is specified in TI application report SCBA004 and applies uniformly across all HC-family devices, including JM38510/65308BFA, due to CMOS input structure sensitivity.
Is JM38510/65308BFA compatible with standard 74HC175 logic levels?
Yes - JM38510/65308BFA is electrically and functionally compatible with commercial 74HC175 devices, sharing identical VIH/VIL thresholds, output drive strength, and timing parameters. Its HC logic family designation ensures interoperability with SN74HC175 and SN54HC175 in mixed-sourcing designs, provided packaging and qualification requirements align.
What does the "BFA" suffix indicate in JM38510/65308BFA?
The "BFA" suffix denotes a specific variant within the JM38510/65308 product family: "B" indicates the revision level per MIL-PRF-38535, "F" specifies the CFP (flatpack) package, and "A" identifies the lead finish (A42). This full suffix uniquely identifies the device's qualification level, physical form, and material composition per Defense Logistics Agency documentation.
Can JM38510/65308BFA be used in place of SNJ54HC175W in an existing design?
JM38510/65308BFA can replace SNJ54HC175W electrically and mechanically - both use the 16-pin CFP package with identical pinout and DC/AC specifications. However, JM38510/65308BFA adds MIL-PRF-38535 Class B conformance, so substitution requires verification that the higher screening level meets program-specific reliability and documentation requirements.
JM38510/65308BFA 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:
- -
JM38510/65308BFA FAQ
1.How can I place an order for JM38510/65308BFA through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/65308BFA 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 JM38510/65308BFA reliable?
The price and inventory of JM38510/65308BFA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/65308BFA is usually 5 days.
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JM38510/65308BFA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/65308BFA 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 JM38510/65308BFA?
For technical support, including JM38510/65308BFA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/65308BFA requirements.
6.How does Aetrix verify that JM38510/65308BFA is sourced from the original manufacturer or authorized distributors?
All JM38510/65308BFA 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 JM38510/65308BFA meets industry standards.
7.What is the process for return or replacement of JM38510/65308BFA?
All JM38510/65308BFA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/65308BFA, 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 JM38510/65308BFA part is unused and in its original packaging.
Return procedure for JM38510/65308BFA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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