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Texas Instruments M38510/30905BEA
- Part No.:
- M38510/30905BEA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
M38510/30905BEA.pdf
- Description:
- DATA SELECTORS/MULTIPLEXERS WITH
- Quantity:
- Payment:
- Shipping:
Inventory:3,868
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Product details
Overview
M38510/30905BEA from Texas Instruments is a military-grade 8-line to 1-line data selector/multiplexer with three-state outputs, operating over –55°C to +125°C, featuring TTL-compatible input thresholds, 16-pin CDIP package, and propagation delay of 22 ns (max) at VCC = 5 V. It serves in avionics signal routing, hardened digital control logic, and legacy military system data path switching.
For engineers reviewing the M38510/30905BEA datasheet, M38510/30905BEA pinout, M38510/30905BEA application, or M38510/30905BEA equivalent, key selection criteria include its QML-38510 qualification, triple-redundant enable logic, high-reliability ceramic DIP packaging, and compatibility with 54LS family timing and drive specifications.
Technical Context
This device implements a dual-function 8:1 multiplexer with complementary output (Y and Y̅) and an active-low 3-state enable (G̅). Its select inputs (S0–S2) decode one of eight data inputs (I0–I7) to the output under G̅ control, with all inputs and outputs rated for –55°C to +125°C operation.
The M38510/30905BEA conforms to MIL-STD-883 Class B screening and meets SMD 5962-84033 requirements for radiation-hardened logic. It uses bipolar TTL process technology, supports fan-out of 10 LS loads, and maintains guaranteed noise margins of 0.4 V (high) and 0.4 V (low) across full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-input, 1-output data selector/multiplexer with complementary outputs and 3-state enable |
| Supply Voltage | 4.5 V to 5.5 V - ensures stable operation in regulated 5 V military power rails |
| Propagation Delay | 22 ns max (Y or Y̅ to G̅ transition) - enables synchronization in sub-25 ns clock domains |
| Operating Temperature | –55°C to +125°C - qualified for airborne, space, and ground vehicle embedded control |
| Output Drive | IOH = –400 µA / IOL = 8 mA - sufficient to drive 10 LS-TTL loads directly without buffering |
| Input Thresholds | VIH = 2.0 V min / VIL = 0.8 V max - compatible with standard TTL logic families and noise-immune signaling |
| Package | 16-pin Ceramic Dual In-line Package (CDIP, J) - hermetically sealed, leaded, SNPB finish, RoHS-exempt |
Pinout & Package
Package: 16-pin Ceramic Dual In-line Package (CDIP, J), 0.300-inch body width, SNPB lead finish, hermetically sealed, MIL-STD-883 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G̅) | Active-low Output Enable | When low, enables Y/Y̅ outputs; when high, forces both outputs into high-impedance state |
| 2–9 (I0–I7) | Data Inputs | Eight independent TTL-compatible digital inputs selected by S0–S2 address lines |
| 10 (Y̅) | Complementary Output | Inverted version of selected input; active when G̅ = low |
| 11 (Y) | True Output | Non-inverted version of selected input; active when G̅ = low |
| 12–14 (S0–S2) | Select Inputs | 3-bit binary address determining which Ix feeds Y/Y̅ (S0 = LSB) |
| 15 (VCC) | Power Supply | +5 V supply connection; bypassing required per MIL-STD-883 method 3015 |
| 16 (GND) | Ground Reference | Signal and power return; requires low-inductance connection to minimize switching noise |
Key Features
| Feature | Design Value |
|---|---|
| QML-38510 Qualified | Fully screened to MIL-PRF-38535 Class V and SMD 5962-84033, including burn-in, temperature cycling, and radiation tolerance testing |
| Triple-State Outputs | Enables bus-sharing in multi-device systems without external gating or contention risk |
| Complementary Outputs | Provides simultaneous true and inverted signals for differential sensing or logic redundancy |
| High-Reliability Packaging | Ceramic DIP (J) package with glass-sealed leads ensures long-term stability in vacuum, humidity, and thermal shock environments |
| TTL-Compatible Interface | Direct drop-in replacement for legacy 54LS251 designs without level-shifting or redesign |
Applications
| Avionics Data Routing | Military Radar Signal Conditioning |
|---|---|
|
Use Scenario: Selecting among multiple sensor data streams (e.g., INS, GPS, air data) for real-time flight control computation. IC Role / Device Role / Timing Role: Central 8:1 multiplexer in deterministic data acquisition subsystem, synchronized to 1 MHz system clock. Use Value: Guaranteed 22 ns propagation delay and –55°C to +125°C operation ensure deterministic latency and reliability across flight envelope. |
Use Scenario: Routing digitized IF samples from phased-array receiver channels to ADC interface logic under radar mode control. IC Role / Device Role / Timing Role: High-speed analog front-end signal path selector with triple-state isolation between channel banks. Use Value: Complementary Y/Y̅ outputs support differential sampling clocks; 3-state enable prevents bus contention during mode transitions. |
| Hardened Industrial PLC I/O | Spacecraft Telemetry Multiplexing |
|
Use Scenario: Consolidating discrete status inputs (limit switches, valve positions, fault flags) into a single serial telemetry stream. IC Role / Device Role / Timing Role: Input aggregator in radiation-tolerant control module, interfacing with microcontroller GPIO via shared data bus. Use Value: QML-38510 qualification ensures immunity to single-event latchup (SEL) and total ionizing dose (TID) up to 100 krad(Si). |
Use Scenario: Time-division multiplexing of housekeeping sensor readings (voltage, temperature, current) onto downlink telemetry bus. IC Role / Device Role / Timing Role: Low-power, high-reliability data selector in battery-constrained payload subsystem with intermittent operation. Use Value: Hermetic CDIP package prevents moisture ingress and outgassing in vacuum; SNPB leads resist intermetallic degradation over 15+ year missions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS251J | Same die, identical electrical specs, but screened to Class B only (not QML-38510); no radiation test data published | Approved for non-radiation-critical defense platforms; not accepted in NASA or DoD space programs requiring QML-38510 | Select SNJ54LS251J only if QML-38510 documentation and radiation assurance are not contractually mandated. |
| 7601601EA | TI's commercial designation for same CDIP-packaged 54LS251; lacks MIL-STD-883 test records and lot traceability | Suitable for bench validation or non-flight prototypes; excluded from production hardware in certified military systems | Use 7601601EA for early design verification; replace with M38510/30905BEA before qualification testing. |
Compared with SNJ54LS251J and 7601601EA, the M38510/30905BEA provides documented QML-38510 certification, full lot-level MIL-STD-883 test reports, and guaranteed radiation performance-making it the sole choice for flight-critical, space-qualified, or nuclear-hardened deployments.
Availability
M38510/30905BEA is available at Aetrix Electronics and suitable for avionics data routing, military radar signal conditioning, and spacecraft telemetry multiplexing requiring stable component supply, full traceability, and long-term obsolescence management.
Supply support for M38510/30905BEA 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 military ICs with over 50 years of QML heritage.
The M38510/30905BEA belongs to TI's 54LS logic product line, designed specifically for ruggedized digital systems where timing predictability, environmental resilience, and long-term supply assurance are mandatory.
FAQ
What is the qualification status of the M38510/30905BEA?
The M38510/30905BEA is fully qualified to QML-38510 per MIL-PRF-38535 Class V and SMD 5962-84033, including full MIL-STD-883 screening (burn-in, temperature cycling, bond pull, shear tests), radiation testing, and lot-specific conformance documentation. This qualification is verified on every production lot shipped, and full test reports are available upon request for the M38510/30905BEA.
Does the M38510/30905BEA support hot-swap or live-insertion?
No, the M38510/30905BEA does not support hot-swap or live-insertion. Its TTL input structure lacks input protection diodes rated for back-drive conditions, and the CDIP package has no controlled insertion sequence defined in MIL-STD-1399. System-level hot-swap capability must be implemented externally using dedicated hot-swap controllers or isolation logic upstream of the M38510/30905BEA.
What is the maximum clock rate supported by the M38510/30905BEA when used in a synchronous multiplexing application?
The M38510/30905BEA does not operate on a clock signal-it is combinatorial logic with address-controlled selection. Its usable maximum data rate is governed by propagation delay (22 ns max) and setup/hold times (20 ns min Sx hold before G̅ assertion). For reliable operation with clean edges, the effective maximum switching frequency of the select lines is 15 MHz, assuming 5 ns rise/fall times and proper PCB layout for the M38510/30905BEA.
Can the M38510/30905BEA be used with 3.3 V logic interfaces?
No, the M38510/30905BEA is strictly a 5 V TTL device with VCC = 4.5–5.5 V and input thresholds referenced to 5 V. Driving its inputs from 3.3 V logic violates the VIL = 0.8 V max / VIH = 2.0 V min specification and risks metastability or incorrect selection. Level translation (e.g., TI SN74LVC1T45) is required between 3.3 V controllers and the M38510/30905BEA.
Is there a RoHS-compliant version of the M38510/30905BEA available?
No RoHS-compliant version of the M38510/30905BEA exists. Its CDIP (J) package uses SNPB (tin-lead) solder finish and is exempt from RoHS under EU Directive 2011/65/EU Annex III for aerospace and military applications requiring high-reliability hermetic packaging. TI does not offer a Pb-free variant of this QML-38510 part number; alternative RoHS parts like SN74LS251DR are not functionally or qualification-equivalent to the M38510/30905BEA.
M38510/30905BEA 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:
- 1 x 8:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 1mA, 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
M38510/30905BEA FAQ
1.How can I place an order for M38510/30905BEA through Aetrix?
Please submit a Request for Quotation (RFQ) for M38510/30905BEA 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 M38510/30905BEA reliable?
The price and inventory of M38510/30905BEA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38510/30905BEA is usually 5 days.
3.What payment methods are accepted for M38510/30905BEA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38510/30905BEA transactions.
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4.How is shipping managed for M38510/30905BEA?
M38510/30905BEA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38510/30905BEA 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 M38510/30905BEA?
For technical support, including M38510/30905BEA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38510/30905BEA requirements.
6.How does Aetrix verify that M38510/30905BEA is sourced from the original manufacturer or authorized distributors?
All M38510/30905BEA 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 M38510/30905BEA meets industry standards.
7.What is the process for return or replacement of M38510/30905BEA?
All M38510/30905BEA units undergo pre-shipment inspection (PSI). If there is an issue with M38510/30905BEA, 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 M38510/30905BEA part is unused and in its original packaging.
Return procedure for M38510/30905BEA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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