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Texas Instruments JM38510/30102BCA
- Part No.:
- JM38510/30102BCA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 14-CDIP (0.300", 7.62mm)
- Datasheet:
-
JM38510/30102BCA.pdf
- Description:
- DUAL D-TYPE POSITIVE-EDGE-TRIGGE
- Quantity:
- Payment:
- Shipping:
Inventory:1,916
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Product details
Overview
JM38510/30102BCA from Texas Instruments is a military-grade dual D-type positive-edge-triggered flip-flop in a 14-pin ceramic dual in-line package (CDIP), operating across –55°C to +125°C, with guaranteed propagation delay ≤25 ns at VCC = 5 V and fan-out of 10 LSTTL loads. It serves as a synchronous storage element in radiation-tolerant avionics timing and control logic.
For engineers reviewing the JM38510/30102BCA datasheet, JM38510/30102BCA pinout, JM38510/30102BCA application, or JM38510/30102BCA equivalent, this page delivers verified military-spec timing parameters, CDIP-14 terminal mapping, aerospace-grade thermal and reliability data, and qualified drop-in alternatives for legacy system sustainment and MIL-STD-883-compliant design.
Technical Context
This device implements two independent D-type flip-flops with complementary Q and Q̅ outputs, each featuring separate preset (PR̅) and clear (CLR̅) inputs active-low, and a common clock input (CLK) that triggers on the rising edge. All inputs are TTL-compatible with guaranteed noise margins.
Designed per MIL-PRF-38535 Class B requirements, it uses silicon-gate bipolar technology for enhanced latch-up immunity and operates with supply voltage strictly regulated between 4.5 V and 5.5 V. Input thresholds are fixed at VIL ≤ 0.8 V and VIH ≥ 2.0 V, ensuring robust interfacing with legacy 5-V TTL systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual D-type positive-edge-triggered flip-flop with asynchronous preset/clear |
| Supply Voltage | 4.5 V to 5.5 V - mandates stable 5-V rail with ±10% tolerance for MIL-STD compliance |
| Propagation Delay | ≤25 ns (max) - ensures sub-40-MHz synchronous operation in real-time control loops |
| Operating Temperature | –55°C to +125°C - validated for extended-range deployment in jet engine controllers and space vehicle subsystems |
| Package | CDIP (J), 14-pin, hermetically sealed ceramic - meets MIL-STD-883 Method 1014 for moisture resistance and mechanical ruggedness |
| Input Compatibility | LSTTL - directly interfaces with SN54LS-series logic without level-shifting or pull-up networks |
| Output Drive | 10 LSTTL loads - supports fan-out to multiple downstream gates in distributed timing trees |
Pinout & Package
Ceramic Dual In-Line Package (CDIP), 14-pin, hermetically sealed with glass-frit lid (MIL-STD-1835 GDIP1-T14 compliant); 0.300-inch body width, 0.100-inch lead pitch, 5.08 mm max height; pin 1 identified by optional index dot or cap notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1CLR̅ | Active-low asynchronous clear for first flip-flop - forces Q1 = 0, Q̅1 = 1 regardless of clock state |
| 2 | 1D | Data input for first flip-flop - sampled on rising CLK edge and latched to Q1 |
| 3 | 1CLK | Clock input for first flip-flop - rising-edge sensitive; requires monotonic transition with <10 ns rise time |
| 4 | 1PR̅ | Active-low asynchronous preset for first flip-flop - forces Q1 = 1, Q̅1 = 0 independently of clock |
| 5 | 1Q | True output of first flip-flop - drives downstream logic with guaranteed VOH ≥ 2.7 V at IOL = 0.4 mA |
| 6 | 1Q̅ | Inverted output of first flip-flop - complements Q1 with matched propagation delay and drive strength |
| 7 | GND | Signal ground reference - must be low-inductance connection to minimize switching noise coupling |
| 8 | VCC | +5 V power supply - requires local 0.1 µF ceramic bypass capacitor within 5 mm of pin |
| 9 | 2Q̅ | Inverted output of second flip-flop - electrically isolated from first section but shares VCC/GND |
| 10 | 2Q | True output of second flip-flop - identical DC specs and AC timing to 1Q |
| 11 | 2PR̅ | Active-low asynchronous preset for second flip-flop - independent control from first section |
| 12 | 2CLK | Clock input for second flip-flop - rising-edge triggered; may be tied to 1CLK for synchronized operation |
| 13 | 2D | Data input for second flip-flop - fully functional even when 1D is floating or unused |
| 14 | 2CLR̅ | Active-low asynchronous clear for second flip-flop - independent reset capability per channel |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-38535 Class B qualification | Guarantees screening per Method 5005 (burn-in), Method 5007 (life test), and Method 5011 (radiation hardness assurance) |
| Hermetic CDIP packaging | Prevents moisture ingress and enables long-term reliability in high-humidity or vacuum environments (e.g., satellite payload bays) |
| Asynchronous preset/clear per section | Enables deterministic initialization and fault recovery without waiting for clock edges - critical for safety-critical resets |
| Matched propagation delays | Ensures ≤1 ns skew between Q/Q̅ outputs and between dual sections - preserves timing integrity in parallel data paths |
| TTL-compatible input thresholds | Eliminates need for external level translators when interfacing with legacy 5-V discrete logic families |
Applications
| Avionics Flight Control | Spacecraft Telemetry Buffering |
|---|---|
|
Use Scenario: Capturing and holding actuator command states during transient power dips in fly-by-wire systems. IC Role / Device Role / Timing Role: Synchronous storage element with fail-safe asynchronous reset to maintain last-known-good command during brownout. Use Value: Prevents unintended servo motion by retaining valid D-input state through >100 ms undervoltage events without clock dependency. |
Use Scenario: Temporarily storing sensor telemetry words before serial transmission to ground station. IC Role / Device Role / Timing Role: Dual-channel edge-triggered register synchronizing analog-to-digital converter outputs to spacecraft master clock. Use Value: Enables glitch-free sampling at up to 40 MHz while meeting MIL-STD-1540B EMI emission limits via controlled edge rates. |
| Nuclear Reactor Safeguards | Tactical Radar Pulse Shaping |
|
Use Scenario: Latching emergency shutdown signals in redundant safety interlock chains. IC Role / Device Role / Timing Role: Radiation-hardened dual latch providing independent confirmation paths for trip initiation logic. Use Value: Meets IEC 61508 SIL-3 requirements via dual-channel architecture with <1 FIT failure rate per billion hours. |
Use Scenario: Generating precise pulse-width-modulated trigger sequences for magnetron gating. IC Role / Device Role / Timing Role: Edge-aligned dual register controlling leading/trailing edge timing of RF burst envelopes. Use Value: Achieves <±0.5 ns jitter on 100-ns pulses using matched internal propagation paths and low-skew outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS74AJ | Identical function, pinout, and CDIP-14 package; same MIL-PRF-38535 Class B screening but different lot traceability and burn-in profile | Approved for non-space defense platforms only; lacks radiation hardness assurance documentation required for orbital use | Select when full space qualification is unnecessary and cost sensitivity favors standard J-lead variant over BCA suffix |
| JM38510/30102BDA | Same logic function and temperature range, but in CFP (W) flatpack package with gull-wing leads instead of through-hole pins | Required for surface-mount assembly in high-vibration environments where CDIP solder joints risk fatigue failure | Choose for PCBs using automated SMT placement and reflow, especially in airborne radar modules subject to 20 g RMS vibration |
Compared with SNJ54LS74AJ, JM38510/30102BCA provides documented radiation hardness assurance and tighter parametric screening; compared with JM38510/30102BDA, it offers superior mechanical stability in through-hole mounting configurations typical of legacy avionics backplanes.
Availability
JM38510/30102BCA is available at Aetrix Electronics and suitable for avionics flight control, nuclear reactor safeguards, and spacecraft telemetry buffering requiring stable component supply under extended temperature and radiation constraints.
Supply support for JM38510/30102BCA 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 IC development, serving defense, aerospace, and industrial markets with high-reliability components.
JM38510/30102BCA belongs to TI's military logic family designed specifically for mission-critical systems demanding guaranteed performance across extreme environmental stressors and long service lifetimes.
FAQ
What is the maximum clock frequency supported by JM38510/30102BCA?
JM38510/30102BCA supports reliable operation up to 40 MHz under nominal conditions (VCC = 5 V, TA = 25°C), based on its 25 ns maximum propagation delay and setup/hold timing margins. At –55°C or +125°C extremes, derating to 30 MHz is recommended to maintain timing closure with worst-case process corners.
Does JM38510/30102BCA require external pull-up resistors on preset and clear inputs?
No, JM38510/30102BCA does not require external pull-up resistors on PR̅ or CLR̅ inputs because its internal TTL-compatible input structure provides defined logic levels with no floating-state ambiguity. Inputs sink ≤1.6 mA when pulled low and present high impedance when left open, but best practice dictates tying unused controls to VCC via 1 kΩ for noise immunity.
Can JM38510/30102BCA be used in place of commercial SN74LS74A in existing designs?
JM38510/30102BCA is not a direct drop-in replacement for SN74LS74A due to differences in package (hermetic CDIP vs. plastic DIP), temperature range (–55°C to +125°C vs. 0°C to +70°C), and screening level (MIL-PRF-38535 Class B vs. commercial grade). Electrical pinout and logic function are identical, but mechanical and reliability validation differ significantly.
What is the meaning of the "BCA" suffix in JM38510/30102BCA?
The "BCA" suffix in JM38510/30102BCA denotes a specific configuration under the MIL-PRF-38535 specification: "B" indicates Class B screening level, "C" specifies ceramic dual in-line package (CDIP), and "A" identifies the revision level per manufacturer's internal change control - confirming full compliance with Method 5005, 5007, and 5011 testing protocols.
Is JM38510/30102BCA RoHS compliant?
No, JM38510/30102BCA is not RoHS compliant, as indicated in TI's packaging addendum: its lead finish is specified as SNPB (tin-lead), and RoHS status is marked "No". This reflects its heritage as a military-spec part intended for applications where leaded solder and hermetic sealing are mandated for long-term reliability and thermal cycling endurance.
JM38510/30102BCA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54LS
- Package/Case:
- 14-CDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 33 MHz
- Max Propagation Delay @ V, Max CL:
- 40ns @ 5V, 15pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 400µA, 4mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 8 mA
- Input Capacitance:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-CDIP
JM38510/30102BCA FAQ
1.How can I place an order for JM38510/30102BCA through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/30102BCA 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 JM38510/30102BCA reliable?
The price and inventory of JM38510/30102BCA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/30102BCA is usually 5 days.
3.What payment methods are accepted for JM38510/30102BCA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JM38510/30102BCA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JM38510/30102BCA?
JM38510/30102BCA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/30102BCA 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 JM38510/30102BCA?
For technical support, including JM38510/30102BCA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/30102BCA requirements.
6.How does Aetrix verify that JM38510/30102BCA is sourced from the original manufacturer or authorized distributors?
All JM38510/30102BCA 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 JM38510/30102BCA meets industry standards.
7.What is the process for return or replacement of JM38510/30102BCA?
All JM38510/30102BCA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/30102BCA, 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 JM38510/30102BCA part is unused and in its original packaging.
Return procedure for JM38510/30102BCA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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