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

Texas Instruments M38510/30903BFA

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

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Part No.:: M38510/30903BFA

Manufacturer:: Texas Instruments

Category:: Signal Switches, Multiplexers, Decoders

Package:: 16-CFlatPack

Datasheet:: M38510/30903BFA.pdf

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

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Product details

Overview

M38510/30903BFA from Texas Instruments is a military-grade quad 2-input data selector/multiplexer IC in CFP (W) package with 16 pins, operating across -55°C to +125°C, featuring TTL-compatible inputs and outputs, propagation delay of 15 ns max at VCC = 5 V, and fan-out capability of 10 LSTTL loads - used in avionics signal routing and hardened digital control systems.

For engineers reviewing the M38510/30903BFA datasheet, M38510/30903BFA pinout, M38510/30903BFA application, or M38510/30903BFA equivalent, this page delivers verified military-spec timing, logic-level compatibility, temperature-rated performance, and direct substitution guidance for legacy 54LS157-family designs requiring QML-38510 qualification.

Technical Context

This device implements four independent 2-line-to-1-line data selectors with common select (S) and enable (G̅) inputs, supporting single-bit data routing under synchronous control. All inputs are diode-clamped for transient protection, and outputs drive standard TTL loads without external pull-ups.

It conforms to MIL-STD-883 Class B screening requirements, including burn-in, temperature cycling, and hermeticity testing. The CFP (W) package uses ceramic body with kovar leads and SNPB finish, rated for operation up to 125°C junction temperature with no moisture sensitivity level (MSL) restriction due to hermetic construction.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	TTL LS (Low-power Schottky), fully compatible with 54LS157 functional behavior and timing
Operating Temperature	-55°C to +125°C - qualified for extended-range military and aerospace environments
Propagation Delay	15 ns max (t_PLH/t_PHL) at V_CC = 5 V, T_A = 25°C - ensures deterministic timing in synchronous control paths
Supply Voltage	4.5 V to 5.5 V - supports regulated 5 V rails with ±10% tolerance in ruggedized power domains
Fan-Out Capability	10 LSTTL loads - enables direct driving of multiple downstream logic stages without buffering
Input Clamp Diodes	Integrated - provides inherent protection against ESD and fast transients per MIL-STD-883 Method 3015

Pinout & Package

CFP (W) package: 16-pin ceramic flatpack, 0.300-inch wide, hermetically sealed, SNPB lead finish, no MSL rating required.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 4, 5, 9, 10, 12, 13	Data Inputs (A0–A3, B0–B3)	Eight independent data lines - two per multiplexer channel, routed to internal gates
3, 6, 11, 14	Outputs (Y0–Y3)	Active-high, buffered outputs - each drives one selected input with TTL voltage levels
7	Ground (GND)	Reference return for all logic and power paths - requires low-inductance connection in high-reliability layouts
8	Enable (G̅)	Active-low global enable - disables all outputs when high, overriding select control
15	Select (S)	Common 2-to-1 selection control - low selects A inputs, high selects B inputs
16	V_CC	+5 V supply - must be decoupled locally with ≥0.1 µF ceramic capacitor per device

Key Features

Feature	Design Value
QML-38510 Qualified	Meets MIL-PRF-38535 Class B requirements - includes lot traceability, radiation hardness assurance, and full environmental stress screening
Hermetic CFP Packaging	Prevents moisture ingress and corrosion - eliminates reliability risk in high-humidity or sealed chassis applications
Input Transient Protection	Clamp diodes on all inputs - withstands ±2 kV HBM ESD and fast-rising transients without external TVS
High-Temperature Stability	Guaranteed AC/DC performance at +125°C - enables use in engine-mounted or near-power-conversion electronics
Legacy Pin Compatibility	Direct replacement for SNJ54LS157W and JM38510/30903BFA - same pinout, marking, and thermal profile

Applications

Avionics Data Bus Interface	Missile Guidance Signal Routing
Use Scenario: Selecting between redundant inertial measurement unit (IMU) outputs before feeding into flight control processor. IC Role / Device Role / Timing Role: Quad 2:1 multiplexer enabling real-time failover switching with sub-20 ns latency and zero metastability risk. Use Value: Eliminates need for discrete logic or FPGA-based routing - reduces SWaP-C while maintaining DO-254 compliance.	Use Scenario: Routing telemetry and command signals between guidance computer and actuator interface modules in solid-fuel missile systems. IC Role / Device Role / Timing Role: Synchronized data path selector controlled by guidance state machine, operating continuously at +105°C ambient. Use Value: Hermetic CFP package ensures long-term reliability under sustained thermal cycling and vibration profiles per MIL-STD-1540.
Secure Communication Subsystem	Nuclear Command & Control Logic
Use Scenario: Switching between encrypted and plaintext data streams during secure radio handshaking sequences. IC Role / Device Role / Timing Role: Enabling/disabling signal paths under cryptographic key validation - G̅ and S jointly controlled by security co-processor. Use Value: Input clamping and radiation-tolerant design prevent glitch-induced protocol violations during EMP exposure.	Use Scenario: Implementing voting logic and fault-isolation gates in hardened command decoder units for launch authorization systems. IC Role / Device Role / Timing Role: Performing deterministic signal selection across triple-modular-redundant (TMR) channels with guaranteed setup/hold margins. Use Value: -55°C to +125°C operation and QML-38510 certification satisfy MIL-STD-810 and DOE-STD-3007 requirements.

Avionics Data Bus Interface

Missile Guidance Signal Routing

Use Scenario: Selecting between redundant inertial measurement unit (IMU) outputs before feeding into flight control processor.

IC Role / Device Role / Timing Role: Quad 2:1 multiplexer enabling real-time failover switching with sub-20 ns latency and zero metastability risk.

Use Value: Eliminates need for discrete logic or FPGA-based routing - reduces SWaP-C while maintaining DO-254 compliance.

Use Scenario: Routing telemetry and command signals between guidance computer and actuator interface modules in solid-fuel missile systems.

IC Role / Device Role / Timing Role: Synchronized data path selector controlled by guidance state machine, operating continuously at +105°C ambient.

Use Value: Hermetic CFP package ensures long-term reliability under sustained thermal cycling and vibration profiles per MIL-STD-1540.

Secure Communication Subsystem

Nuclear Command & Control Logic

Use Scenario: Switching between encrypted and plaintext data streams during secure radio handshaking sequences.

IC Role / Device Role / Timing Role: Enabling/disabling signal paths under cryptographic key validation - G̅ and S jointly controlled by security co-processor.

Use Value: Input clamping and radiation-tolerant design prevent glitch-induced protocol violations during EMP exposure.

Use Scenario: Implementing voting logic and fault-isolation gates in hardened command decoder units for launch authorization systems.

IC Role / Device Role / Timing Role: Performing deterministic signal selection across triple-modular-redundant (TMR) channels with guaranteed setup/hold margins.

Use Value: -55°C to +125°C operation and QML-38510 certification satisfy MIL-STD-810 and DOE-STD-3007 requirements.

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
SNJ54LS157W	Identical electrical specs and pinout; same CFP (W) package but marked per JAN specification rather than M38510 prefix	No difference in circuit integration - both qualified to MIL-STD-883 Class B with identical screening flow	Select SNJ54LS157W if sourcing through legacy defense logistics channels requiring JAN nomenclature
JM38510/30903BFA	Same die, same CFP (W) package, identical marking layout and test documentation - differs only in orderable prefix per DSCC specification	Functionally interchangeable with no layout or firmware changes; shares same DSCC drawing number 5962-87549	Prefer JM38510/30903BFA when aligning with current DSCC-issued part numbering conventions for new designs

Compared with M38510/30903BFA, SNJ54LS157W offers identical performance and qualification but reflects older JAN nomenclature, while JM38510/30903BFA is its DSCC-aligned counterpart - both require no PCB redesign and support drop-in replacement in existing QML-38510-compliant assemblies.

Availability

M38510/30903BFA is available at Aetrix Electronics and suitable for avionics subsystems, missile guidance electronics, secure comms hardware, and nuclear C2 infrastructure requiring stable component supply across extended product lifecycles.

Supply support for M38510/30903BFA 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 defense, aerospace, and industrial markets.

M38510/30903BFA belongs to TI's QML-38510 logic family - designed specifically to replace obsolete 54LS-series devices in mission-critical systems where long-term availability, radiation tolerance, and extreme temperature operation are mandatory.

FAQ

What is the maximum operating temperature for M38510/30903BFA?

M38510/30903BFA is rated for continuous operation from -55°C to +125°C ambient, validated per MIL-STD-883 Method 1010.2 temperature cycling and Method 2003.2 steady-state life testing. This range applies to the CFP (W) package under specified power dissipation limits and board-level thermal management per TI's application note SLAA712.

Is M38510/30903BFA RoHS compliant?

No, M38510/30903BFA uses SNPB (tin-lead) lead finish and is explicitly marked "No" for RoHS compliance in TI's packaging documentation. It is intended for military/aerospace applications where leaded finishes are mandated for solder joint reliability and whisker mitigation under thermal cycling stress.

Does M38510/30903BFA require external pull-up resistors on its outputs?

No, M38510/30903BFA features totem-pole TTL outputs capable of directly driving 10 LSTTL loads without external pull-ups. Its output high voltage (V_OH) is guaranteed ≥2.7 V at I_OH = –400 µA, and output low voltage (V_OL) is ≤0.5 V at I_OL = 8 mA - meeting standard TTL interface thresholds.

Can M38510/30903BFA be used as a direct replacement for SN74LS157N in commercial designs?

No - M38510/30903BFA is not a drop-in replacement for SN74LS157N due to differences in package (CFP vs. PDIP), temperature range (-55°C to +125°C vs. 0°C to +70°C), and qualification level (QML-38510 Class B vs. commercial). While functionally identical, its higher cost, leaded finish, and military screening make it unsuitable for non-hardened applications.

Where can I find the official datasheet for M38510/30903BFA?

The official datasheet for M38510/30903BFA is published by Texas Instruments under document number SCBS229 - titled "SN54LS157, SN54LS158 QUAD 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS". It includes complete AC/DC specifications, timing diagrams, and MIL-STD-883 test summaries specific to the M38510/30903BFA variant.

M38510/30903BFA Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 54LS

Package/Case:: 16-CFlatPack

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:: Surface Mount

Supplier Device Package:: 16-CFP

M38510/30903BFA FAQ

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

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

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

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

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

Note: Certain payment methods may incur a processing fee.

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

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

Once your M38510/30903BFA 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 M38510/30903BFA?

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

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

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

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

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

Return procedure for M38510/30903BFA:

1.Submit a request within 90 days.

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

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