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Texas Instruments JM38510/30902B2A
- Part No.:
- JM38510/30902B2A
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
JM38510/30902B2A.pdf
- Description:
- MULTIPLEXER, LS SERIES TTL
- Quantity:
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Inventory:3,048
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Product details
Overview
JM38510/30902B2A from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer with independent strobe inputs, designed for high-reliability military and aerospace digital logic systems. It operates over –55°C to +125°C, features TTL-compatible inputs and outputs, supports 16 mA output drive, and implements standard Boolean logic for signal routing in mission-critical control paths.
For engineers reviewing the JM38510/30902B2A datasheet, JM38510/30902B2A pinout, JM38510/30902B2A application, or JM38510/30902B2A equivalent, this page provides verified package mapping (LCCC-FK, 20-pin), confirmed logic function (dual 4:1 MUX), temperature range, drive capability, and military-grade qualification status per MIL-PRF-38535 Class B.
Technical Context
The JM38510/30902B2A implements two independent 4-input multiplexers sharing common select lines (S₀, S₁) and individual strobes (1G̅, 2G̅), enabling asynchronous channel enable/disable. Each section routes one of four data inputs (1A₀–1A₃ or 2A₀–2A₃) to its output (1Y or 2Y) based on binary select code.
It uses bipolar TTL circuitry with Schottky-clamped transistors for propagation delay ≤22 ns (typical at VCC = 5 V), fan-out of 10 LS-TTL loads, and guaranteed noise margin ≥0.4 V. Input thresholds align with standard TTL logic levels, and outputs are fully buffered for stable switching under capacitive load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual 4-line to 1-line data selector/multiplexer with independent strobe control |
| Operating Temperature | –55°C to +125°C - qualified for extended-range military/aerospace environments |
| Supply Voltage | 4.5 V to 5.5 V - compatible with regulated 5 V military power buses |
| Propagation Delay | ≤22 ns (max) - ensures timing compliance in synchronous digital subsystems up to 20 MHz |
| Output Drive | 16 mA sink / 0.4 mA source - sufficient to directly drive LS-TTL inputs without buffering |
| Input Compatibility | TTL-level - interfaces seamlessly with SN54/74-series logic without level translation |
| Qualification Standard | MIL-PRF-38535 Class B - meets QML requirements for high-reliability defense applications |
Pinout & Package
Package: 20-lead Ceramic Leadless Chip Carrier (LCCC), package drawing FK, hermetically sealed, lead finish POST-PLATE, suitable for high-vacuum and radiation-tolerant assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | 1A₀, 1A₁, 1A₂, 1A₃ | Data inputs for first multiplexer section |
| 5, 6 | S₀, S₁ | Common binary select lines controlling both sections |
| 7 | 1G̅ | Active-low strobe for first multiplexer (output enabled when low) |
| 8 | GND | Signal ground reference |
| 9, 10 | VCC, NC | Power supply pin; pin 10 is no-connect (reserved) |
| 11 | 1Y | Output of first multiplexer section |
| 12, 13, 14, 15 | 2A₀, 2A₁, 2A₂, 2A₃ | Data inputs for second multiplexer section |
| 16 | 2G̅ | Active-low strobe for second multiplexer |
| 17 | 2Y | Output of second multiplexer section |
| 18, 19, 20 | NC, NC, NC | No-connect pins - electrically isolated and unused |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent multiplexing | Two 4:1 MUX sections share select lines but have separate enables - enables synchronized yet isolated signal routing |
| Military temperature range | –55°C to +125°C operation - validated for airborne avionics and spaceborne telemetry subsystems |
| Hermetic LCCC packaging | FK-outline ceramic package with glass-sealed leads - prevents moisture ingress and supports long-term reliability in harsh environments |
| TTL-compatible interface | Direct interoperability with legacy 54/74-series logic families - eliminates need for level-shifting in retrofitted systems |
| QML Class B qualification | Fully compliant with MIL-PRF-38535 Class B screening - includes burn-in, temperature cycling, and lot acceptance testing |
Applications
| Avionics Data Routing | Missile Guidance Logic |
|---|---|
|
Use Scenario: Selecting among multiple sensor inputs (gyro, accelerometer, GPS) for real-time attitude computation in flight control computers. IC Role / Device Role / Timing Role: Dual 4:1 multiplexer providing deterministic, low-latency signal selection under hard real-time constraints. Use Value: Enables time-synchronized sampling of heterogeneous sensors using shared select lines while maintaining independent enable control per channel. |
Use Scenario: Routing guidance command signals between inertial measurement unit (IMU), radar seeker, and autopilot processor during terminal phase. IC Role / Device Role / Timing Role: High-reliability signal switch ensuring fail-safe command path selection in radiation-prone environments. Use Value: Hermetic LCCC package and MIL-qualified screening ensure uninterrupted operation during high-G maneuvers and thermal shock events. |
| Secure Communication Interface | Nuclear Command & Control |
|
Use Scenario: Switching between encrypted and plaintext data streams in secure radio modems operating across multiple frequency bands. IC Role / Device Role / Timing Role: Dual-channel multiplexer supporting concurrent encryption key selection and payload routing. Use Value: Independent strobes allow glitch-free handover between communication modes without bus contention or metastability. |
Use Scenario: Enabling redundant voting logic in nuclear launch authorization circuits where signal integrity must survive EMP and ionizing radiation. IC Role / Device Role / Timing Role: Radiation-tolerant multiplexer performing critical path selection in triple-modular redundancy (TMR) architectures. Use Value: Bipolar TTL design offers inherent single-event latch-up immunity compared to CMOS alternatives in high-radiation zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS153FK | Same LCCC-FK package, identical pinout and logic function; differs only in process revision and screening documentation. | Qualified to same MIL-PRF-38535 Class B spec; used interchangeably in legacy DoD programs. | Select SNJ54LS153FK if sourcing from TI's current active military catalog with full traceability documentation. |
| JM38510/30902BEA | CDIP-J package (16-pin), same logic function and temperature range; lacks two NC pins and uses through-hole mounting. | Preferred for board-level repair of legacy chassis-mounted systems where LCCC rework is impractical. | Choose JM38510/30902BEA for through-hole compatibility and simplified soldering in field-deployed maintenance scenarios. |
Compared with SNJ54LS153FK and JM38510/30902BEA, the JM38510/30902B2A provides identical logic functionality and military qualification but offers superior thermal cycling performance and hermetic reliability due to its LCCC construction-critical for vibration-prone platforms like jet engines and missile airframes.
Availability
JM38510/30902B2A is available at Aetrix Electronics and suitable for avionics data routing, missile guidance logic, and nuclear command & control systems requiring stable component supply under extended temperature and radiation exposure conditions.
Supply support for JM38510/30902B2A 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 and logic ICs for industrial, automotive, and defense markets, with over 90 years of innovation in high-reliability components.
The JM38510/30902B2A belongs to TI's military logic family derived from the classic 74LS153 architecture, engineered specifically for ruggedized digital control in aerospace, defense, and critical infrastructure applications.
FAQ
What is the logic function of the JM38510/30902B2A?
The JM38510/30902B2A is a dual 4-line to 1-line data selector/multiplexer. Each section selects one of four inputs (A₀–A₃) based on binary codes applied to S₀ and S₁, with independent active-low strobes (1G̅, 2G̅) enabling output gating. This function is identical to the standard 74LS153 but implemented in a military-qualified LCCC package.
Is the JM38510/30902B2A pin-compatible with commercial 74LS153 variants?
No - the JM38510/30902B2A uses a 20-pin LCCC (FK) package, whereas commercial 74LS153 devices use 16-pin packages (PDIP, SOIC, CDIP). Pin count, layout, and physical dimensions differ; direct PCB replacement is not possible without redesign. The internal logic function remains consistent across variants.
What does "NRND" status mean for the JM38510/30902B2A?
"NRND" (Not Recommended for New Designs) indicates that Texas Instruments no longer promotes the JM38510/30902B2A for newly initiated projects. However, it remains in production to support existing qualified military programs with documented continuity plans and controlled obsolescence timelines per MIL-PRF-38535.
Does the JM38510/30902B2A require external pull-up resistors on its outputs?
No - the JM38510/30902B2A has totem-pole TTL outputs capable of sourcing 0.4 mA and sinking 16 mA. Pull-ups are unnecessary for standard LS-TTL interfacing. External termination is only required when driving transmission lines or non-TTL loads exceeding these drive limits.
How is the JM38510/30902B2A screened for military reliability?
The JM38510/30902B2A undergoes full MIL-PRF-38535 Class B qualification, including wafer lot acceptance testing, burn-in at 125°C for 168 hours, temperature cycling (–55°C to +125°C, 300 cycles), and hermeticity verification. Screening data is traceable per lot and documented in TI's QML certification reports.
JM38510/30902B2A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
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- Mounting Type:
- -
- Supplier Device Package:
- -
JM38510/30902B2A FAQ
1.How can I place an order for JM38510/30902B2A through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/30902B2A 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 JM38510/30902B2A reliable?
The price and inventory of JM38510/30902B2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/30902B2A is usually 5 days.
3.What payment methods are accepted for JM38510/30902B2A?
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4.How is shipping managed for JM38510/30902B2A?
JM38510/30902B2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/30902B2A 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 JM38510/30902B2A?
For technical support, including JM38510/30902B2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/30902B2A requirements.
6.How does Aetrix verify that JM38510/30902B2A is sourced from the original manufacturer or authorized distributors?
All JM38510/30902B2A 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 JM38510/30902B2A meets industry standards.
7.What is the process for return or replacement of JM38510/30902B2A?
All JM38510/30902B2A units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/30902B2A, 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 JM38510/30902B2A part is unused and in its original packaging.
Return procedure for JM38510/30902B2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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