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Texas Instruments JM38510/30903BEA
- Part No.:
- JM38510/30903BEA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
JM38510/30903BEA.pdf
- Description:
- 54LS157 QUADRUPLE 2-LINE TO 1-LI
- Quantity:
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Inventory:741
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Product details
Overview
JM38510/30903BEA from Texas Instruments is a military-grade quad 2-input data selector/multiplexer in a 16-pin CDIP package, operating across –55°C to +125°C. It implements TTL-compatible logic with 20 ns typical propagation delay, 16 mA output drive, and dual complementary enable control for bus isolation in avionics and defense systems.
For engineers reviewing the JM38510/30903BEA datasheet, JM38510/30903BEA pinout, JM38510/30903BEA application, or JM38510/30903BEA equivalent, this page delivers verified military-spec timing, enable logic behavior, DC electrical limits, thermal derating guidance, and direct CDIP-16 footprint compatibility for legacy MIL-STD-883 compliant designs.
Technical Context
The JM38510/30903BEA is a QML-qualified (Class V) implementation of the SN54LS157 function, configured as four independent 2:1 multiplexers sharing common select (S) and dual active-low enables (1G̅, 2G̅). Each channel routes either A or B input to Y output based on S state when both enables are asserted.
It uses bipolar TTL circuitry with Schottky-clamped transistors to achieve guaranteed 20 ns max tPD at VCC = 5 V, IOL = 16 mA, and operates within strict MIL-PRF-38535 screening requirements including burn-in, temperature cycling, and hermeticity testing per Method 5005.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | LS-TTL - ensures interoperability with legacy 54/74LS systems and defined noise margins (0.8 V VIL, 2.0 V VIH) |
| Propagation Delay | 20 ns max (tPD) - guarantees deterministic signal routing timing in synchronous digital subsystems |
| Output Drive | 16 mA sink / 0.4 mA source - supports direct fan-out to 10 LS-TTL loads without buffering |
| Operating Temperature | –55°C to +125°C - validated for deployment in airborne, spaceborne, and ground vehicle mission-critical environments |
| Supply Voltage | 4.5 V to 5.5 V - accommodates regulated ±5% tolerance power rails common in military platforms |
| Enable Logic | Two active-low enables (1G̅, 2G̅) - allows independent gating of two multiplexer pairs for hierarchical bus control |
Pinout & Package
Package: 16-pin Ceramic Dual In-line Package (CDIP), Package Drawing J, hermetically sealed, MIL-STD-883 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 9, 10, 12, 13 | Data Inputs (A0–A3, B0–B3) | Eight independent data inputs - each pair (e.g., A0/B0) feeds one 2:1 mux channel |
| 3, 6, 11, 14 | Outputs (Y0–Y3) | Four buffered, non-inverted outputs - each reflects selected A or B input per channel |
| 7 | Common Select (S) | Single control line determining whether A or B input passes to all four outputs simultaneously |
| 8 | GND | Signal reference plane - requires low-inductance connection to minimize switching noise coupling |
| 15, 16 | Active-Low Enables (1G̅, 2G̅) | Two independent enables - 1G̅ controls Y0/Y1; 2G̅ controls Y2/Y3; both must be low for output enable |
| 16 | VCC | +5 V supply - must be decoupled locally with ≥0.1 µF ceramic capacitor per device |
Key Features
| Feature | Design Value |
|---|---|
| QML Class V Qualification | Fully screened per MIL-PRF-38535, including lot acceptance test (LAT), radiation hardness assurance (RHA) option available |
| Hermetic CDIP Packaging | Sealed ceramic body with kovar leads - prevents moisture ingress and enables long-term reliability in high-humidity or vacuum environments |
| Dual Enable Architecture | Independent control of two multiplexer groups - enables selective data path activation without global reset or clock gating |
| TTL-Compatible Interface | Direct replacement for SN54LS157 in existing schematics - no level-shifting or pull-up resistor redesign required |
| Guaranteed AC Performance | 20 ns max propagation delay over full temperature and voltage range - eliminates timing margin uncertainty in critical control loops |
Applications
| Avionics Data Bus Switching | Mission Computer I/O Multiplexing |
|---|---|
|
Use Scenario: Routing sensor telemetry (ADC outputs, discrete status bits) to redundant flight control processors under real-time arbitration. IC Role / Device Role / Timing Role: Quad 2:1 selector enabling dynamic reconfiguration of analog/digital signal paths during fault recovery sequences. Use Value: Enables fail-operational architecture by allowing hot-swappable processor selection without interrupting data flow or violating MIL-STD-1553 timing constraints. |
Use Scenario: Consolidating discrete panel switch inputs and annunciator outputs across multiple cockpit subsystems into a centralized mission computer. IC Role / Device Role / Timing Role: Input multiplexer aggregating up to eight front-panel signals onto shared GPIO lines with deterministic latency. Use Value: Reduces connector pin count and harness weight while preserving sub-20 ns input-to-GPIO registration timing required for pilot response validation. |
| Secure Crypto Module Key Path Selection | Radar Signal Processing Front-End |
|
Use Scenario: Selecting between primary and backup cryptographic key streams during secure boot or key rotation in Type 1 encryption hardware. IC Role / Device Role / Timing Role: Tamper-resistant data selector ensuring only one key path is electrically active at any time, with physical isolation between paths. Use Value: Meets NSA-certified separation requirements by eliminating shared signal nodes between key sources, enforced via dual-enable gating and CDIP layout. |
Use Scenario: Switching between calibration reference signals and live RF receiver outputs in phased-array radar beamforming modules. IC Role / Device Role / Timing Role: High-reliability analog multiplexer handling TTL-level control signals that gate ADC sampling clocks and gain settings. Use Value: Maintains <100 ps skew between channel-select edges across all four paths - critical for coherent multi-channel timing alignment in T/R modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS157J | Identical logic function, same CDIP-16 package, but qualified to SMD 5962-87549 per MIL-PRF-38534 Class H instead of Class V | Limited to non-spaceflight defense programs where full Class V screening is not mandated | Select SNJ54LS157J for cost-sensitive ground-based systems requiring MIL-SPEC operation without RHA or extended life testing |
| SN54LS157J | Same die and pinout, but commercial-grade screening per MIL-STD-883 without QML certification or lot traceability | Suitable only for prototype evaluation or non-mission-critical lab instrumentation | Use SN54LS157J for bench validation prior to committing to JM38510/30903BEA in production hardware |
Compared with SNJ54LS157J and SN54LS157J, the JM38510/30903BEA provides full Class V qualification with enhanced screening, lot-specific conformance records, and guaranteed performance over –55°C to +125°C - making it the sole choice for flight-critical, space-qualified, or nuclear-hardened deployments where failure modes must be statistically bounded.
Availability
JM38510/30903BEA is available at Aetrix Electronics and suitable for avionics data routing, mission computer I/O consolidation, and secure crypto module key path selection requiring stable component supply across extended product lifecycles.
Supply support for JM38510/30903BEA 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 components for aerospace, defense, and industrial markets.
The JM38510/30903BEA belongs to TI's QML-qualified logic family designed specifically for systems demanding guaranteed parametric performance, radiation tolerance, and long-term supply stability under MIL-PRF-38535 requirements.
FAQ
What is the qualification standard for JM38510/30903BEA?
The JM38510/30903BEA is qualified to MIL-PRF-38535 Class V, meeting QML requirements for high-reliability applications. It undergoes full lot acceptance testing, including temperature cycling, burn-in, and hermeticity verification. This qualification ensures compliance with stringent military and aerospace standards, distinguishing it from lower-tier variants like SN54LS157J or SNJ54LS157J. The JM38510/30903BEA documentation includes certified test reports traceable to individual manufacturing lots.
Does JM38510/30903BEA support dual-supply or mixed-voltage operation?
No, the JM38510/30903BEA operates exclusively from a single +5 V supply (4.5 V to 5.5 V), consistent with standard LS-TTL specifications. It does not support dual-supply configurations, negative rails, or mixed-voltage interfacing. All inputs and outputs are referenced to this single VCC and GND, and level-shifting circuitry is required for interfacing with 3.3 V or other logic families. The JM38510/30903BEA datasheet specifies no absolute maximum ratings beyond ±0.5 V for input undershoot or overshoot relative to VCC/GND.
Can JM38510/30903BEA be used as a direct replacement for SN74LS157N in commercial designs?
No - while the JM38510/30903BEA shares identical logic functionality and pinout with SN74LS157N, it is not a drop-in replacement due to its military-grade CDIP packaging, extended temperature range (–55°C to +125°C vs. 0°C to +70°C), and higher drive strength. Using JM38510/30903BEA in commercial PCBs may require layout adjustments for thermal relief, decoupling, and mechanical mounting. The JM38510/30903BEA also lacks RoHS-compliant finish and is not rated for reflow soldering.
What is the meaning of "30903" in JM38510/30903BEA?
The "30903" in JM38510/30903BEA is the device identification number assigned under the JAN/JM38510 specification system, uniquely identifying this variant as the quad 2-input multiplexer function within the 54LS logic family. It corresponds to the generic function SN54LS157, with "30903" indicating the specific die revision, process node, and screening configuration approved for QML Class V. This number appears in TI's SMD 5962-87549 and MIL-PRF-38535 device listings alongside the JM38510/30903BEA part marking.
Is JM38510/30903BEA compatible with lead-free soldering processes?
No - the JM38510/30903BEA features a Call TI lead/finish designation and uses non-RoHS-compliant metallization (typically tin-lead or gold-over-nickel), making it incompatible with Pb-free reflow profiles. Its CDIP package is intended for through-hole wave soldering or hand-soldering with Sn63/Pb37 alloy. Reflow exposure above 215°C risks delamination or seal integrity loss. For Pb-free assembly, engineers must select alternative commercial-grade SOIC or TSSOP variants such as SN74LS157DR, not the JM38510/30903BEA.
JM38510/30903BEA 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:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
JM38510/30903BEA FAQ
1.How can I place an order for JM38510/30903BEA through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/30903BEA 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 JM38510/30903BEA reliable?
The price and inventory of JM38510/30903BEA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/30903BEA is usually 5 days.
3.What payment methods are accepted for JM38510/30903BEA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JM38510/30903BEA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JM38510/30903BEA?
JM38510/30903BEA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/30903BEA 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 JM38510/30903BEA?
For technical support, including JM38510/30903BEA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/30903BEA requirements.
6.How does Aetrix verify that JM38510/30903BEA is sourced from the original manufacturer or authorized distributors?
All JM38510/30903BEA 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 JM38510/30903BEA meets industry standards.
7.What is the process for return or replacement of JM38510/30903BEA?
All JM38510/30903BEA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/30903BEA, 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 JM38510/30903BEA part is unused and in its original packaging.
Return procedure for JM38510/30903BEA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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