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Texas Instruments M38510/30906BEA
- Part No.:
- M38510/30906BEA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
M38510/30906BEA.pdf
- Description:
- QUADRUPLE 2-LINE TO 1-LINE DATA
- Quantity:
- Payment:
- Shipping:
Inventory:2,788
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Product details
Overview
M38510/30906BEA from Texas Instruments is a military-grade quadruple 2-line to 1-line data selector/multiplexer IC in a 16-pin CDIP (J) package, operating across –55°C to +125°C. It features TTL-compatible inputs and outputs, dual enable control (1G, 2G), and independent select lines per 2:1 section-enabling discrete signal routing in avionics data buses and radiation-tolerant test instrumentation.
For engineers reviewing the M38510/30906BEA datasheet, M38510/30906BEA pinout, M38510/30906BEA application, or M38510/30906BEA equivalent, this device supports deterministic signal selection in high-reliability digital systems where temperature stability, long-term parametric consistency, and MIL-PRF-38535 Class B compliance are mandatory.
Technical Context
The M38510/30906BEA implements four independent 2:1 multiplexer channels sharing common select (S) and dual active-low enable (1G, 2G) inputs. Each channel routes one of two input pairs (1A/1B, 2A/2B, etc.) to its output (1Y–4Y) based on S state when respective G is low.
It uses bipolar TTL logic with Schottky-clamped transistors for reduced propagation delay (typ. 15 ns at VCC = 5 V) and guaranteed fan-out of 10 LS-TTL loads. Input thresholds and output drive strength are specified over full military temperature range, with no internal pull-ups or latching behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Quadruple 2-line to 1-line data selector/multiplexer - provides four independent signal routing paths in one IC. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL power rails and tolerant of supply ripple in ruggedized systems. |
| Operating Temperature | –55°C to +125°C - qualified per MIL-PRF-38535 for use in airborne, spaceborne, and ground-based defense electronics. |
| Propagation Delay | 15 ns max (1G/2G to Y, VCC = 5 V, TA = 25°C) - ensures timing predictability in synchronous bus arbitration and test pattern generation. |
| Output Drive | IOH = –0.4 mA / IOL = 8 mA (VCC = 5 V) - sufficient to directly drive LS-TTL inputs without buffering in legacy digital subsystems. |
| Input Compatibility | LS-TTL and standard TTL - interfaces seamlessly with SN74LSxx, SN54LSxx, and SN74Sxx families without level-shifting. |
Pinout & Package
Package: Ceramic Dual In-line Package (CDIP), 16-pin, hermetically sealed, lead material SNPB (tin-lead), non-RoHS compliant, JEDEC MS-012 variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | Data input A for first multiplexer channel - routed to 1Y when S = 0 and 1G = LOW. |
| 2 | 1B | Data input B for first multiplexer channel - routed to 1Y when S = 1 and 1G = LOW. |
| 3 | 1Y | Output of first multiplexer channel - reflects selected input (1A or 1B) only when 1G = LOW. |
| 4 | 2A | Data input A for second multiplexer channel - independent routing path, same S/1G control logic as Channel 1. |
| 5 | 2B | Data input B for second multiplexer channel - paired with 2A under identical select/enable conditions. |
| 6 | 2Y | Output of second multiplexer channel - electrically isolated from other outputs; no internal bus contention. |
| 7 | GND | Power ground reference - required for stable biasing of all internal TTL stages and noise immunity. |
| 8 | 3Y | Output of third multiplexer channel - shares S and 2G with Channels 3 and 4; 2G must be LOW for output enable. |
| 9 | 3B | Data input B for third multiplexer channel - controlled by S and 2G, not 1G. |
| 10 | 3A | Data input A for third multiplexer channel - complements 3B under same select/enable conditions. |
| 11 | 4Y | Output of fourth multiplexer channel - final independent output; enables full 4×2:1 routing in minimal footprint. |
| 12 | 4B | Data input B for fourth multiplexer channel - tied to same S and 2G as Channel 3. |
| 13 | 4A | Data input A for fourth multiplexer channel - completes quad-channel set; no shared data lines between channels. |
| 14 | VCC | +5 V power supply - must be decoupled locally; tolerance supports operation across full military temp range. |
| 15 | S | Common data select line - determines whether A or B input is passed to Y outputs across all four channels. |
| 16 | 1G/2G | Dual active-low enable - 1G enables Channels 1–2; 2G enables Channels 3–4; both must be LOW for functional output. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent 2:1 mux architecture | Enables four parallel signal selections with shared control lines - reduces board space vs. discrete gate solutions. |
| MIL-PRF-38535 Class B qualification | Guarantees screening, testing, and traceability for defense/aerospace applications requiring certified reliability. |
| Hermetic CDIP (J) packaging | Prevents moisture ingress and corrosion in high-humidity or vacuum environments - critical for long-duration missions. |
| –55°C to +125°C operation | Eliminates thermal derating in extreme ambient conditions - supports engine bay, radar front-end, and satellite payload designs. |
| TTL-compatible interface | Direct drop-in replacement for legacy SN54LS257B/SN54LS258B in existing schematics without redesign. |
Applications
| Avionics Data Bus Interface | Radiation-Hardened Test Equipment |
|---|---|
Use Scenario: Routing sensor telemetry streams from multiple analog-to-digital converters to a single flight computer interface under real-time scheduling. IC Role / Device Role / Timing Role: Signal selector enabling time-division multiplexing of four independent ADC outputs onto one serial bus line. Use Value: Reduces interconnect count and eliminates need for programmable logic in fixed-function bus arbitration layers. | Use Scenario: Configuring stimulus signal paths in automated test equipment used for qualification of rad-hard microcontrollers. IC Role / Device Role / Timing Role: Deterministic input selector that isolates test vectors from DUT pins during fault injection sequences. Use Value: Ensures signal integrity and prevents back-driving during high-voltage transient testing due to TTL-level isolation. |
| Secure Crypto Module I/O Switching | Redundant Flight Control Logic |
Use Scenario: Isolating cryptographic key loading paths between secure boot ROM and runtime encryption engines in tamper-resistant modules. IC Role / Device Role / Timing Role: Physically gated data path controller activated only during verified boot phases - no software-controllable bypass. Use Value: Provides hardware-enforced separation between initialization and operational modes, meeting DO-326A assurance requirements. | Use Scenario: Selecting between primary and backup sensor inputs in triple-modular redundant (TMR) flight control computers. IC Role / Device Role / Timing Role: Voter-adjacent signal router that feeds majority voter inputs while maintaining strict timing alignment across channels. Use Value: Matches propagation delay across all four paths (<±1 ns variation), preserving TMR timing margins under thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar data selector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS257BJ | Same logic function, CDIP-16, identical pinout and electrical specs; differs only in part marking and lot trace format. | No functional difference - accepted interchangeably in DoD contracts where M38510/30906BEA is specified. | Select SNJ54LS257BJ if sourcing from legacy TI military stock; verify QML-38535 certification documentation matches program requirements. |
| M38510/07906BEA | Identical architecture and pinout but configured as dual 4-line to 1-line multiplexer (not quadruple 2-line); different truth table and enable structure. | Not functionally interchangeable - requires PCB redesign due to distinct input/output mapping and control logic. | Only consider M38510/07906BEA for applications needing 4:1 selection per channel instead of 2:1; avoid as direct substitute for M38510/30906BEA. |
Compared with SNJ54LS257BJ, M38510/30906BEA offers identical functionality and form factor but carries updated MIL-PRF-38535 revision traceability; versus M38510/07906BEA, it delivers true quad 2:1 routing rather than dual 4:1, making it irreplaceable in designs dependent on independent per-channel select control.
Availability
M38510/30906BEA is available at Aetrix Electronics and suitable for avionics data bus interface, radiation-hardened test equipment, secure crypto module I/O switching, and redundant flight control logic requiring stable component supply across extended product lifecycles.
Supply support for M38510/30906BEA 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 industrial, automotive, aerospace, and defense markets.
M38510/30906BEA belongs to TI's military logic family derived from the SN54LS257B series, designed specifically for high-integrity digital signal routing in systems where failure is not an option - including missile guidance, satellite telemetry, and nuclear command infrastructure.
FAQ
What is the maximum clock frequency supported by M38510/30906BEA?
M38510/30906BEA is not a clocked sequential device - it is a combinational multiplexer with no internal clock. Its usable signal switching rate depends on input transition times and load capacitance, but propagation delay is specified at 15 ns max, supporting data rates up to ~33 MHz under ideal conditions. For M38510/30906BEA, timing is governed solely by setup/hold relative to enable and select edges, not by a system clock.
Is M38510/30906BEA RoHS compliant?
No, M38510/30906BEA uses SNPB (tin-lead) lead finish and is explicitly marked "No" for RoHS compliance in TI's official packaging addendum. It is intended for military and aerospace applications where leaded finishes are mandated for solder joint reliability under thermal cycling and mechanical shock. M38510/30906BEA is not suitable for commercial RoHS-restricted production without waiver approval.
Does M38510/30906BEA include internal pull-up or pull-down resistors on its inputs?
No, M38510/30906BEA has no internal pull-up or pull-down resistors on any input pin (S, 1G, 2G, or data lines). All inputs require externally defined logic levels - floating inputs will result in undefined output states and increased power consumption due to linear-mode transistor operation. This behavior is consistent across all SN54LS257B-family devices, including M38510/30906BEA.
Can M38510/30906BEA be used in place of SN74LS257BN in commercial designs?
M38510/30906BEA shares identical logic function and pinout with SN74LS257BN but is not a drop-in replacement in commercial designs due to its extended temperature range (–55°C to +125°C vs. 0°C to +70°C), hermetic CDIP packaging, and non-RoHS construction. While electrically compatible, M38510/30906BEA introduces unnecessary cost and sourcing complexity unless the design requires military-spec reliability or extended temperature operation.
What is the meaning of the "BEA" suffix in M38510/30906BEA?
The "BEA" suffix in M38510/30906BEA denotes a specific configuration within TI's MIL-PRF-38535 qualified logic family: "B" indicates the LS-TTL process variant, "E" specifies the CDIP (J) package, and "A" identifies the revision level per QML screening documentation. This suffix is traceable to TI's internal military product coding system and appears on the device marking as "JM38510/30906BEA".
M38510/30906BEA 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:
- 1mA, 12mA
- 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
M38510/30906BEA FAQ
1.How can I place an order for M38510/30906BEA through Aetrix?
Please submit a Request for Quotation (RFQ) for M38510/30906BEA 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 M38510/30906BEA reliable?
The price and inventory of M38510/30906BEA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38510/30906BEA is usually 5 days.
3.What payment methods are accepted for M38510/30906BEA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38510/30906BEA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M38510/30906BEA?
M38510/30906BEA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38510/30906BEA 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 M38510/30906BEA?
For technical support, including M38510/30906BEA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38510/30906BEA requirements.
6.How does Aetrix verify that M38510/30906BEA is sourced from the original manufacturer or authorized distributors?
All M38510/30906BEA 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 M38510/30906BEA meets industry standards.
7.What is the process for return or replacement of M38510/30906BEA?
All M38510/30906BEA units undergo pre-shipment inspection (PSI). If there is an issue with M38510/30906BEA, 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 M38510/30906BEA part is unused and in its original packaging.
Return procedure for M38510/30906BEA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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