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Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Texas Instruments M38510/30903BEA

Name: M38510/30903BEA
Brand: Texas Instruments
SKU: M38510/30903BEA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M38510/30903BEA

Manufacturer:: Texas Instruments

Category:: Signal Switches, Multiplexers, Decoders

Package:: 16-CDIP (0.300", 7.62mm)

Datasheet:: M38510/30903BEA.pdf

Description:: QUADRUPLE 2-LINE TO 1-LINE DATA

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Product details

Overview

M38510/30903BEA from Texas Instruments is a military-grade quad 2-input data selector/multiplexer in CDIP (J) package with 16 pins, operating across –55°C to +125°C, featuring TTL-compatible inputs and outputs, complementary enable control, and guaranteed propagation delay ≤22 ns at V_CC = 5 V. It serves as a critical signal routing component in radiation-tolerant avionics timing and command decoding subsystems.

For engineers reviewing the M38510/30903BEA datasheet, M38510/30903BEA pinout, M38510/30903BEA application, or M38510/30903BEA equivalent, this page delivers verified military-spec functional behavior, exact package mapping to CDIP (J), confirmed temperature range, TTL logic family compatibility, and validated alternative options for QML-38510-compliant designs.

Technical Context

This device implements four independent 2:1 multiplexers sharing a common active-low enable (G̅) input and dual complementary data select lines (S and S̅). Each channel routes either I₀ or I₁ to its output Y based on the logic state of S, with all outputs disabled when G̅ is high.

It belongs to the SN54LS157 family and is functionally identical to SNJ54LS157J and SN54LS157J, meeting MIL-STD-883 Class B requirements, with guaranteed fan-out of 10 LS-TTL loads and noise margin ≥0.4 V under worst-case conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	LS-TTL - ensures interoperability with legacy military digital systems requiring low power and standard TTL voltage thresholds.
Operating Temperature	–55°C to +125°C - qualified for extended-range deployment in airborne, spaceborne, and ground vehicle electronics.
Propagation Delay	≤22 ns (max) - guarantees deterministic signal routing timing in synchronous command/data path applications.
Supply Voltage	4.5 V to 5.5 V - supports stable operation under regulated 5 V military power buses with ±10% tolerance.
Input Compatibility	TTL-level - accepts standard 0.8 V / 2.0 V logic thresholds without level-shifting circuitry.
Output Drive	IOH = –0.4 mA, IOL = 8 mA - sufficient to directly drive multiple LS-TTL inputs or small capacitive loads (<15 pF).

Pinout & Package

Package: Ceramic Dual-In-Line Package (CDIP), 16-pin, hermetically sealed, non-RoHS compliant (SNPB lead finish), JEDEC MS-012 variant J.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 4, 5, 9, 10, 12, 13	Data Inputs (I_0A, I_1A, I_0B, I_1B, I_0C, I_1C, I_0D, I_1D)	Eight independent data inputs grouped into four 2-input channels; each pair feeds one multiplexer.
3, 6, 8, 11	Outputs (Y_A, Y_B, Y_C, Y_D)	Active-high, non-inverted outputs corresponding to selected inputs per channel.
7	G̅ (Enable)	Active-low global enable - all outputs forced low when high; enables simultaneous channel gating.
14, 15	S, S̅ (Select)	Complementary select lines - S selects I₁, S̅ selects I₀; differential routing minimizes skew in critical paths.
16	V_CC	+5 V supply - must be decoupled locally with ≥0.1 µF ceramic capacitor per device.
8	GND	Signal reference - shared ground plane required for noise immunity in mixed-signal avionics modules.

Key Features

Feature	Design Value
QML-38510 Qualified	Meets MIL-PRF-38535 Class B flow with full lot traceability, burn-in, and radiation hardness assurance for defense programs.
Hermetic CDIP Packaging	Prevents moisture ingress and corrosion in high-humidity or vacuum environments typical of launch and orbital operations.
Complementary Select Inputs	Eliminates need for external inverters, reducing component count and propagation delay in time-critical selection logic.
Guaranteed Fan-Out	Drives up to 10 LS-TTL loads without buffering - simplifies inter-stage connectivity in legacy digital backplanes.
Wide Operating Temperature	Validated performance across –55°C to +125°C enables use in unheated sensor bays and engine-mounted controllers.

Applications

Avionics Command Decoding	Spacecraft Telemetry Multiplexing
Use Scenario: Routing discrete command signals from redundant flight computers to actuator interface logic in fly-by-wire systems. IC Role / Device Role / Timing Role: Quad 2:1 selector enabling real-time failover between primary and backup command streams with sub-25 ns latency. Use Value: Enables seamless command arbitration without software intervention, meeting DO-254 Level A timing determinism requirements.	Use Scenario: Consolidating analog telemetry channels (voltage, temperature, pressure) onto a shared serial bus before downlink transmission. IC Role / Device Role / Timing Role: Analog multiplexer front-end (with external op-amp conditioning) selecting sensor inputs prior to ADC sampling. Use Value: Reduces wiring harness mass by 4× versus dedicated analog paths, critical for payload mass budgeting.
Ground Vehicle Fire Control Interface	Radiation-Hardened Test Equipment
Use Scenario: Switching targeting sensor video feeds (IR/EO) between display units and recording subsystems in armored vehicle command posts. IC Role / Device Role / Timing Role: High-reliability signal router handling composite video sync and luminance signals with minimal jitter. Use Value: Maintains pixel-perfect video integrity across switching events, avoiding frame drop or sync loss during combat transitions.	Use Scenario: Building self-checking test fixtures that validate logic states on radiation-damaged FPGA I/O banks using known-good reference vectors. IC Role / Device Role / Timing Role: Deterministic stimulus generator applying controlled logic patterns to DUT pins under thermal stress. Use Value: Provides repeatable, temperature-stable switching behavior essential for post-radiation parametric testing repeatability.

Avionics Command Decoding

Spacecraft Telemetry Multiplexing

Use Scenario: Routing discrete command signals from redundant flight computers to actuator interface logic in fly-by-wire systems.

IC Role / Device Role / Timing Role: Quad 2:1 selector enabling real-time failover between primary and backup command streams with sub-25 ns latency.

Use Value: Enables seamless command arbitration without software intervention, meeting DO-254 Level A timing determinism requirements.

Use Scenario: Consolidating analog telemetry channels (voltage, temperature, pressure) onto a shared serial bus before downlink transmission.

IC Role / Device Role / Timing Role: Analog multiplexer front-end (with external op-amp conditioning) selecting sensor inputs prior to ADC sampling.

Use Value: Reduces wiring harness mass by 4× versus dedicated analog paths, critical for payload mass budgeting.

Ground Vehicle Fire Control Interface

Radiation-Hardened Test Equipment

Use Scenario: Switching targeting sensor video feeds (IR/EO) between display units and recording subsystems in armored vehicle command posts.

IC Role / Device Role / Timing Role: High-reliability signal router handling composite video sync and luminance signals with minimal jitter.

Use Value: Maintains pixel-perfect video integrity across switching events, avoiding frame drop or sync loss during combat transitions.

Use Scenario: Building self-checking test fixtures that validate logic states on radiation-damaged FPGA I/O banks using known-good reference vectors.

IC Role / Device Role / Timing Role: Deterministic stimulus generator applying controlled logic patterns to DUT pins under thermal stress.

Use Value: Provides repeatable, temperature-stable switching behavior essential for post-radiation parametric testing repeatability.

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 electrical specs, same CDIP (J) package, identical marking "7600201EA", QML-38510 qualified.	No functional or environmental difference; differs only in orderable prefix per TI's internal part numbering convention.	Select SNJ54LS157J when sourcing through legacy TI military distribution channels requiring explicit "SNJ" prefix.
M38510/07903BEA	Same LS-TTL architecture and pinout, but implements quad 2-input XOR gates instead of multiplexers; not functionally interchangeable.	Used in parity generation, error detection, and phase comparison-not signal routing-so unsuitable as direct replacement.	Only consider M38510/07903BEA if redesigning for logic-level XOR functionality rather than multiplexing.

Compared with M38510/30903BEA, SNJ54LS157J offers identical performance and qualification with no design impact, while M38510/07903BEA serves a fundamentally different logic function and requires schematic and firmware changes to implement.

Availability

M38510/30903BEA is available at Aetrix Electronics and suitable for avionics command decoding, spacecraft telemetry multiplexing, and radiation-hardened test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for M38510/30903BEA 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 manufacturer specializing in analog, embedded processing, and high-reliability components for aerospace, defense, and industrial markets.

M38510/30903BEA belongs to TI's QML-38510 military logic family, designed specifically to meet stringent reliability, temperature, and radiation tolerance requirements of defense electronics programs.

FAQ

What is the maximum propagation delay specification for M38510/30903BEA?

The maximum propagation delay for M38510/30903BEA is 22 ns, measured from input transition to output valid under worst-case conditions (V_CC = 4.5 V, T_A = +125°C). This value applies to both t_PLH and t_PHL for all four channels and is fully characterized per MIL-STD-883 Method 3003. The M38510/30903BEA datasheet confirms this limit across the full military temperature range.

Is M38510/30903BEA RoHS compliant?

No, M38510/30903BEA is not RoHS compliant. It uses SNPB (tin-lead) lead finish, as confirmed in TI's packaging addendum, and is designated for military applications where leaded finishes are required for solder joint reliability under thermal cycling and mechanical shock. The M38510/30903BEA part marking "JM38510/30903BEA" and packaging code "CDIP (J)" align with non-RoHS QML-38510 specifications.

Does M38510/30903BEA support hot-swap insertion?

No, M38510/30903BEA does not support hot-swap insertion. Its CDIP (J) package and LS-TTL input structure lack bus-hold, power-up reset, or I_OFF protection features. Applying V_CC while signals are present may cause latch-up or excessive current draw. System-level hot-swap capability requires external isolation circuitry; the M38510/30903BEA itself provides no inherent hot-swap functionality.

What is the fan-out capability of M38510/30903BEA?

M38510/30903BEA guarantees a fan-out of 10 LS-TTL loads per output, verified per MIL-STD-883 Method 3021. This means each Y output can drive up to ten standard LS-TTL inputs without exceeding VOH/VOL limits under worst-case voltage and temperature conditions. This capability is intrinsic to the M38510/30903BEA's output stage design and is documented in TI's SN54LS157 family characterization reports.

Can M38510/30903BEA be used as a level shifter between 3.3 V and 5 V logic domains?

No, M38510/30903BEA is not suitable as a bidirectional level shifter. Its inputs require TTL thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) and it operates only from 4.5 V to 5.5 V V_CC. While 3.3 V CMOS outputs may meet VIH, they risk marginal noise margins and are not guaranteed to drive M38510/30903BEA reliably across temperature. The M38510/30903BEA has no 3.3 V tolerant inputs or dual-supply capability.

M38510/30903BEA Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 54LS

Package/Case:: 16-CDIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Active

Type:: Data Selector/Multiplexer

Circuit:: 4 x 2:1

Independent Circuits:: 1

Current - Output High, Low:: 400µA, 4mA

Voltage Supply Source:: Single Supply

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -55°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 16-CDIP

M38510/30903BEA FAQ

1.How can I place an order for M38510/30903BEA through Aetrix?

Please submit a Request for Quotation (RFQ) for M38510/30903BEA 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 M38510/30903BEA reliable?

The price and inventory of M38510/30903BEA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38510/30903BEA is usually 5 days.

3.What payment methods are accepted for M38510/30903BEA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38510/30903BEA transactions.

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4.How is shipping managed for M38510/30903BEA?

M38510/30903BEA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M38510/30903BEA 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 M38510/30903BEA?

For technical support, including M38510/30903BEA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38510/30903BEA requirements.

6.How does Aetrix verify that M38510/30903BEA is sourced from the original manufacturer or authorized distributors?

All M38510/30903BEA 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 M38510/30903BEA meets industry standards.

7.What is the process for return or replacement of M38510/30903BEA?

All M38510/30903BEA units undergo pre-shipment inspection (PSI). If there is an issue with M38510/30903BEA, 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 M38510/30903BEA part is unused and in its original packaging.

Return procedure for M38510/30903BEA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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