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Texas Instruments JM38510/34105B2A
- Part No.:
- JM38510/34105B2A
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
JM38510/34105B2A.pdf
- Description:
- 54F374 OCTAL EDGE-TRIGGERED D-TY
- Quantity:
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Inventory:2,076
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Product details
Overview
JM38510/34105B2A from Texas Instruments is a military-grade octal D-type flip-flop with 3-state bus-driver outputs, edge-triggered clocking (positive transition), and buffered output enable control. It operates across −55°C to 125°C, supports 5 V supply, delivers ±24 mA output drive, and features tPLH/tPHL ≤ 8.5 ns at VCC = 5 V - enabling high-speed data latching in avionics timing and radar interface subsystems.
For engineers reviewing the JM38510/34105B2A datasheet, JM38510/34105B2A pinout, JM38510/34105B2A application, or JM38510/34105B2A equivalent, key selection criteria include its LCCC-20 ceramic package, full military temperature qualification, 3-state output isolation capability, and compatibility with TTL-level control logic in safety-critical embedded systems.
Technical Context
The JM38510/34105B2A implements eight independent edge-triggered D flip-flops sharing a common clock (CLK) and output enable (OE) input. Its positive-edge CLK synchronizes D-input states to Q outputs without internal gating delay between latch stages.
OE controls only output driver state - not internal storage - allowing data retention or new loading while outputs remain in high-impedance mode. The device uses bipolar F-family transistor technology, delivering fast propagation (tPZH ≤ 11.5 ns) and robust noise immunity for deterministic timing in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | F-series TTL - ensures direct compatibility with legacy 5 V TTL systems and predictable voltage thresholds (VIH = 2 V, VIL = 0.8 V). |
| Operating Temperature | −55°C to 125°C - qualified per MIL-PRF-38535 for use in airborne, spaceborne, and ground-based defense electronics without derating. |
| Supply Voltage | 4.5 V to 5.5 V - stable operation under regulated 5 V rails with ±10% tolerance, supporting legacy power architectures. |
| Output Drive | IOL = 24 mA / IOH = −3 mA - sufficient to directly drive 50 Ω transmission lines or terminate multiple TTL loads without external buffers. |
| Propagation Delay | tPLH/tPHL ≤ 8.5 ns @ CL = 50 pF - enables reliable operation up to 70 MHz clock frequency in synchronous data capture applications. |
| 3-State Enable Delay | tPZL ≤ 7.5 ns, tPHZ ≤ 7 ns - ensures rapid bus release and acquisition for time-multiplexed I/O arbitration in real-time controllers. |
| Input Clamp Current | IIK = −18 mA - protects inputs against transient overvoltage events common in avionics harnesses and motor-control feedback paths. |
Pinout & Package
LCCC-20 (FK package): 20-terminal hermetically sealed ceramic leadless chip carrier with J-lead geometry, designed for high-reliability mounting on multilayer ceramic substrates in military PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-low control: drives all eight Q outputs into high-impedance when high; no effect on internal flip-flop state. |
| 2–9 | 1D–8D | Data inputs for each of eight D-type latches; sampled on rising CLK edge and held until next clock event. |
| 10 | GND | Power return reference for all logic and output drivers; requires low-inductance connection to minimize ground bounce. |
| 11–18 | 1Q–8Q | True (non-inverted) 3-state outputs; sink up to 24 mA or source 3 mA in active state; float when OE = high. |
| 19 | VCC | +5 V supply input; decoupling capacitor required within 1 cm to suppress switching noise during simultaneous output transitions. |
| 20 | CLK | Common clock input; positive-edge sensitive; must meet minimum pulse width (tw ≥ 7 ns high, ≥6 ns low) for reliable triggering. |
Key Features
| Feature | Design Value |
|---|---|
| Full military qualification | Complies with MIL-PRF-38535 Class B and QML-38535 requirements, including screening, burn-in, and lot traceability for defense programs. |
| High-speed 3-state bus driving | Simultaneous 8-bit latching + tri-state control enables clean bidirectional data bus management without external transceivers. |
| Buffered control inputs | OE and CLK inputs include Schmitt-trigger-like hysteresis and current-limited drivers, reducing sensitivity to noise and crosstalk on long traces. |
| Robust absolute ratings | Withstands −1.2 V to 7 V input voltage and −0.5 V to 5.5 V output voltage in disabled state - critical for hot-swap and fault-tolerant designs. |
| Parallel load architecture | All eight D inputs are accessible simultaneously; no serial shift register overhead - ideal for parallel port expansion and register file implementation. |
Applications
| Avionics Data Acquisition | Radar Pulse Timing Interface |
|---|---|
Use Scenario: Capturing synchronized analog-to-digital converter (ADC) sample strobes and status flags in flight control computers. IC Role / Device Role / Timing Role: Eight-bit parallel latch holding ADC channel validity bits and conversion-ready signals aligned to system master clock. Use Value: Ensures deterministic setup/hold timing (tsu/th ≥ 2 ns) and eliminates metastability risk during high-speed sampling cycles in DO-254-compliant hardware. |
Use Scenario: Isolating and buffering transmit/receive timing pulses between FPGA-based waveform generators and RF front-end modules. IC Role / Device Role / Timing Role: Bidirectional bus driver managing shared timing bus between digital signal processor and analog RF ICs. Use Value: 3-state outputs prevent signal contention during mode switching; 24 mA drive sustains signal integrity over 15 cm backplane traces. |
| Tactical Vehicle Control Bus | Secure Communication Module |
Use Scenario: Interfacing microcontroller GPIOs to CAN transceiver control lines and isolated sensor inputs in armored vehicle ECUs. IC Role / Device Role / Timing Role: I/O port expander providing additional synchronized control outputs for relay drivers and watchdog reset sequencing. Use Value: −55°C to 125°C operation ensures reliability under engine-bay thermal cycling; OE pin allows dynamic reconfiguration without CPU intervention. |
Use Scenario: Securing cryptographic key register updates in NSA-certified Type 1 encryption hardware with tamper-evident timing supervision. IC Role / Device Role / Timing Role: Working register holding intermediate cipher round outputs under precise clock-gated control to thwart side-channel timing attacks. Use Value: Edge-triggered D flip-flops provide deterministic, jitter-free sampling; LCCC package minimizes radiated emissions in TEMPEST-constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54F374FK | Identical electrical specs, same LCCC-20 FK package, and identical military temperature range; differs only in device marking and procurement channel (TI's standard military part vs. JAN-spec variant). | No functional difference; used interchangeably in DoD contracts where either JAN or JANTXV marking is accepted. | Select SNJ54F374FK if sourcing through standard TI military distribution channels; verify marking compliance with contract drawing requirements. |
| 5962-9759001Q2A | Same die, identical LCCC-20 FK package, and QML-38535 Class V qualification; includes additional radiation hardness assurance (RHA) testing per MIL-STD-883 Method 1019. | Required for spaceflight and nuclear-hardened platforms where total ionizing dose (TID) tolerance > 100 krad(Si) is mandated. | Choose 5962-9759001Q2A when radiation survivability is specified; otherwise, JM38510/34105B2A meets standard military environmental and reliability needs. |
Compared with SNJ54F374FK, JM38510/34105B2A offers identical performance but distinct procurement lineage; versus 5962-9759001Q2A, it omits RHA testing - reducing cost and lead time for non-space defense applications requiring only baseline MIL-PRF-38535 Class B assurance.
Availability
JM38510/34105B2A is available at Aetrix Electronics and suitable for avionics data acquisition, radar pulse timing interface, tactical vehicle control bus, and secure communication module applications requiring stable component supply across extended lifecycle programs.
Supply support for JM38510/34105B2A 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 global semiconductor leader with over 60 years of analog and logic innovation, serving aerospace, defense, industrial, and automotive markets with high-reliability components.
JM38510/34105B2A belongs to TI's military logic family - engineered specifically for deterministic timing, radiation-tolerant operation, and long-term supply stability in mission-critical embedded systems.
FAQ
What is the operating temperature range of the JM38510/34105B2A?
The JM38510/34105B2A is fully characterized for operation from −55°C to 125°C per MIL-PRF-38535 Class B requirements. This range is validated across all electrical parameters including propagation delay, output drive, and input thresholds - making it suitable for deployment in jet engine bays, satellite payloads, and desert-deployed electronic warfare systems without thermal derating.
Does the JM38510/34105B2A support 3.3 V logic interfaces?
No, the JM38510/34105B2A is a 5 V TTL device with VIH = 2 V and VIL = 0.8 V, and is not designed for direct interfacing with 3.3 V CMOS logic. Driving its inputs from 3.3 V sources may result in marginal high-level recognition; level-shifting circuitry or compatible 5 V I/O peripherals are required for interoperability.
What package type does the JM38510/34105B2A use?
The JM38510/34105B2A uses the LCCC-20 (FK) package: a 20-terminal leadless ceramic chip carrier with J-shaped leads, hermetically sealed for moisture resistance and rated for high-reliability military PCB assembly using solder reflow or conductive epoxy bonding.
How does the output enable (OE) function affect internal flip-flop operation in the JM38510/34105B2A?
In the JM38510/34105B2A, the OE input affects only the output drivers - not internal storage. When OE is high, Q outputs enter high-impedance state while flip-flop contents remain unchanged; new data can be loaded via D inputs and CLK edges, and stored values persist regardless of OE state.
Is the JM38510/34105B2A pin-compatible with commercial SN74F374 variants?
No - although electrically identical, the JM38510/34105B2A uses the LCCC-20 (FK) package, whereas commercial SN74F374 parts use SOIC (DW), SSOP (DB), or PDIP (N) packages. Pin numbering and physical layout differ significantly; PCB redesign is required for substitution.
JM38510/34105B2A 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:
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- Qualification:
- -
- Mounting Type:
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- Supplier Device Package:
- -
JM38510/34105B2A FAQ
1.How can I place an order for JM38510/34105B2A through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/34105B2A 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 JM38510/34105B2A reliable?
The price and inventory of JM38510/34105B2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/34105B2A is usually 5 days.
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4.How is shipping managed for JM38510/34105B2A?
JM38510/34105B2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/34105B2A 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 JM38510/34105B2A?
For technical support, including JM38510/34105B2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/34105B2A requirements.
6.How does Aetrix verify that JM38510/34105B2A is sourced from the original manufacturer or authorized distributors?
All JM38510/34105B2A 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 JM38510/34105B2A meets industry standards.
7.What is the process for return or replacement of JM38510/34105B2A?
All JM38510/34105B2A units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/34105B2A, 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 JM38510/34105B2A part is unused and in its original packaging.
Return procedure for JM38510/34105B2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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