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Texas Instruments JM38510/37102B2A
- Part No.:
- JM38510/37102B2A
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
JM38510/37102B2A.pdf
- Description:
- 54ALS109A DUAL J-K POSITIVE-EDGE
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Product details
Overview
JM38510/37102B2A from Texas Instruments is a dual J-K positive-edge-triggered flip-flop IC designed for high-reliability military logic systems. It features two independent flip-flops, operates across −55°C to 125°C, supports 30 MHz maximum clock frequency, dissipates 6 mW per flip-flop, and uses TTL-compatible input thresholds with active-low asynchronous preset and clear. It is used in radiation-tolerant avionics timing control and hardened digital state machines.
For engineers reviewing the JM38510/37102B2A datasheet, JM38510/37102B2A pinout, JM38510/37102B2A application, or JM38510/37102B2A equivalent, key selection criteria include military-grade temperature range, LCCC-20 ceramic package compatibility, guaranteed 30 MHz operation under full temp range, and direct replacement capability for SN54ALS109AFK in QML-38510 qualified designs.
Technical Context
This device implements two fully independent J-K flip-flops with asynchronous active-low PRE and CLR inputs that override clocked operation. Each flip-flop samples J and K inputs on the positive-going edge of CLK, with setup time (15 ns) and hold time (0 ns) specified at VCC = 4.5–5.5 V and full military temperature range.
It belongs to the ALS (Advanced Low-Power Schottky) logic family, delivering higher speed than standard LS while maintaining low power: typical propagation delay tPLH/tPHL ≤ 21 ns, ICC ≤ 4 mA at VCC = 5.5 V, and VOL ≤ 0.4 V at IOL = 4 mA. No 3-state or open-collector outputs are present - all outputs are totem-pole.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ALS (Advanced Low-Power Schottky) - balances speed and power for military-grade TTL systems |
| Clock Frequency Max | 30 MHz - guaranteed over −55°C to 125°C, enabling real-time control in flight computers |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with regulated 5 V military power rails; absolute max 7 V |
| Input Thresholds | VIL = 0.7 V, VIH = 2.0 V - ensures noise margin against TTL-level signals in noisy platforms |
| Output Drive | IOL = 4 mA / IOH = −0.4 mA - sufficient to drive 10+ standard TTL loads without buffering |
| Propagation Delay | tPLH/tPHL ≤ 21 ns - enables sub-34 ns cycle timing in synchronous state machines |
| Power Dissipation | 6 mW per flip-flop at 5 V - supports dense packaging in conduction-cooled avionics modules |
Pinout & Package
Package: 20-lead Ceramic Leadless Chip Carrier (LCCC), FK package drawing, hermetically sealed, lead finish POST-PLATE, MSL N/A (non-moisture-sensitive).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1CLR | Active-low asynchronous clear for first flip-flop; forces Q = L, Q̅ = H when asserted |
| 2 | 1J | Data input J for first flip-flop; controls set behavior on next clock edge when PRE/CLR inactive |
| 3 | 1K | Data input K for first flip-flop; controls reset behavior on next clock edge when PRE/CLR inactive |
| 4 | 1CLK | Positive-edge-triggered clock input for first flip-flop; edge-sensitive, voltage-level triggered |
| 5 | 1PRE | Active-low asynchronous preset for first flip-flop; forces Q = H, Q̅ = L when asserted |
| 6 | 1Q | True output of first flip-flop; complementary to 1Q̅, driven actively high/low |
| 7 | 1Q̅ | Inverted output of first flip-flop; complementary to 1Q, driven actively high/low |
| 8 | GND | Ground reference for all internal circuitry and I/O; must be low-impedance in EMI-critical layouts |
| 9 | VCC | +5 V supply pin; requires local 0.1 µF ceramic decoupling adjacent to pin |
| 10 | 2CLR | Active-low asynchronous clear for second flip-flop; independent of first flip-flop's control |
| 11 | 2J | Data input J for second flip-flop; functionally identical to 1J but electrically isolated |
| 12 | 2K | Data input K for second flip-flop; functionally identical to 1K but electrically isolated |
| 13 | 2CLK | Positive-edge-triggered clock input for second flip-flop; no internal coupling to 1CLK |
| 14 | 2PRE | Active-low asynchronous preset for second flip-flop; independent of first flip-flop's PRE |
| 15 | 2Q | True output of second flip-flop; fully buffered, same drive strength as 1Q |
| 16 | 2Q̅ | Inverted output of second flip-flop; fully buffered, same drive strength as 1Q̅ |
| 17–20 | NC | No internal connection - unused pads; must remain unconnected and unbonded in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent J-K flip-flops | Enables compact implementation of 2-bit counters, shift registers, or dual-channel synchronizers without inter-chip skew |
| Asynchronous PRE/CLR with priority | Allows immediate state initialization or fault recovery independent of clock timing - critical for fail-safe reset in flight control |
| Military temperature qualification | Rated for −55°C to 125°C per MIL-PRF-38535 Class B, supporting deployment in engine bays and space-qualified payloads |
| ALS logic performance | Delivers 30 MHz operation with only 6 mW per flip-flop - superior speed/power ratio vs. standard LS logic in SWaP-constrained systems |
| LCCC-20 hermetic packaging | Provides moisture resistance, thermal stability, and mechanical robustness required for long-life aerospace deployments |
Applications
| Avionics Flight Control Logic | Hardened Data Acquisition Buffering |
|---|---|
|
Use Scenario: Synchronizing sensor interrupt signals from inertial measurement units before feeding into a central processor. IC Role / Device Role / Timing Role: Dual J-K flip-flop acting as metastability-hardened synchronizer pair, using PRE/CLR to force known states during system boot or fault recovery. Use Value: Eliminates single-event upsets in FPGA-adjacent logic by providing deterministic, radiation-tolerant state capture at 30 MHz clock rates. |
Use Scenario: Capturing parallel ADC output words in a ruggedized telemetry module operating in jet turbine environments. IC Role / Device Role / Timing Role: Edge-triggered latch for 2-bit status flags (e.g., "valid sample", "overrange") with independent asynchronous reset per channel. Use Value: Ensures reliable flag registration under wide temperature swings and EMI exposure, leveraging ALS family noise immunity and LCCC thermal stability. |
| Missile Guidance State Machine | Secure Crypto Key Register |
|
Use Scenario: Implementing a 2-stage finite-state controller for seeker head actuation sequencing in guided munitions. IC Role / Device Role / Timing Role: Dual flip-flop configured as toggle (J=K=H) and D-type (J=K=tied) modes to generate precise phase-aligned control pulses. Use Value: Guarantees deterministic state transitions at up to 30 MHz under shock/vibration, with PRE/CLR enabling rapid abort-to-safe reinitialization. |
Use Scenario: Storing volatile cryptographic enable bits in a tamper-responsive secure enclave where power loss must preserve last valid state. IC Role / Device Role / Timing Role: Non-volatile latching element using PRE/CLR to lock key bits until authenticated command arrives; outputs drive hardened gate arrays. Use Value: Provides hardware-enforced bit retention with zero hold time requirement, eliminating race conditions during secure boot sequences. |
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 |
|---|---|---|---|
| SNJ54ALS109AFK | Identical electrical specs, same LCCC-20 package, QML-38535 Class B qualified; differs only in MIL-STD-883 test flow labeling | Same use cases - avionics, defense, space - but SNJ54ALS109AFK carries legacy TI part numbering without JAN prefix | Select SNJ54ALS109AFK if sourcing through legacy defense logistics channels requiring exact historical nomenclature |
| JM38510/37102BEA | Same functionality and military temp range, but packaged in 16-pin CDIP (J package) instead of LCCC-20; higher thermal resistance and larger footprint | Suitable for board-level retrofits where LCCC rework is impractical, but not for new high-density or high-vibration designs | Choose JM38510/37102BEA only when CDIP socket compatibility or manual assembly constraints override LCCC advantages |
Compared with SNJ54ALS109AFK, JM38510/37102B2A offers identical functional and environmental performance but reflects updated JAN specification traceability; versus JM38510/37102BEA, it delivers superior thermal management and vibration resistance via LCCC packaging - critical for modern embedded military platforms.
Availability
JM38510/37102B2A is available at Aetrix Electronics and suitable for avionics flight control, missile guidance subsystems, and secure crypto module designs requiring stable component supply, long-term obsolescence mitigation, and QML-38510 Class B compliance.
Supply support for JM38510/37102B2A 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.
JM38510/37102B2A belongs to TI's QML-38510-certified military logic portfolio, engineered specifically for mission-critical aerospace and defense systems demanding guaranteed performance across extreme environmental stressors.
FAQ
What is the operating temperature range certified for JM38510/37102B2A?
JM38510/37102B2A is qualified per MIL-PRF-38535 Class B for continuous operation from −55°C to 125°C. This rating is verified through temperature cycling, steady-state burn-in, and parametric testing across the full range - not extrapolated. The LCCC-20 package contributes to thermal stability in this envelope.
Does JM38510/37102B2A support 3.3 V operation?
No, JM38510/37102B2A is strictly a 5 V TTL-family device with recommended VCC of 4.5 V to 5.5 V. Its input thresholds (VIH = 2.0 V, VIL = 0.7 V) and output drive characteristics are optimized for 5 V signaling. Operation below 4.5 V violates recommended conditions and may cause timing failures or increased static current.
Can JM38510/37102B2A be used as a D-type flip-flop?
Yes - JM38510/37102B2A can function as a D-type flip-flop by tying its J and K inputs together. When J = K = D, the output follows D on the next positive clock edge. This configuration is explicitly supported in the device's functional description and requires no external components beyond the J–K tie.
What is the maximum clock frequency guaranteed across temperature for JM38510/37102B2A?
JM38510/37102B2A guarantees 30 MHz maximum clock frequency over its full −55°C to 125°C operating range. This value is production-tested per MIL-STD-883 Method 5011 and appears in the "recommended operating conditions" table - not a characterization-only figure.
Is JM38510/37102B2A RoHS compliant?
JM38510/37102B2A uses a POST-PLATE lead finish and is exempt from RoHS lead restrictions under EU Directive 2011/65/EU Annex III, as permitted for high-reliability aerospace and defense applications. Its qualification per MIL-PRF-38535 supersedes commercial RoHS requirements.
JM38510/37102B2A 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:
- -
JM38510/37102B2A FAQ
1.How can I place an order for JM38510/37102B2A through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/37102B2A 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 JM38510/37102B2A reliable?
The price and inventory of JM38510/37102B2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/37102B2A is usually 5 days.
3.What payment methods are accepted for JM38510/37102B2A?
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4.How is shipping managed for JM38510/37102B2A?
JM38510/37102B2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/37102B2A 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 JM38510/37102B2A?
For technical support, including JM38510/37102B2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/37102B2A requirements.
6.How does Aetrix verify that JM38510/37102B2A is sourced from the original manufacturer or authorized distributors?
All JM38510/37102B2A 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 JM38510/37102B2A meets industry standards.
7.What is the process for return or replacement of JM38510/37102B2A?
All JM38510/37102B2A units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/37102B2A, 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 JM38510/37102B2A part is unused and in its original packaging.
Return procedure for JM38510/37102B2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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