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Texas Instruments M38510/30702BFA
- Part No.:
- M38510/30702BFA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-CFlatPack
- Datasheet:
-
M38510/30702BFA.pdf
- Description:
- DUAL 2-LINE TO 4-LINE DECODERS/D
- Quantity:
- Payment:
- Shipping:
Inventory:1,319
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Product details
Overview
M38510/30702BFA from Texas Instruments is a military-grade dual 2-line-to-4-line decoder/demultiplexer in CFP (W) package with 16 pins, operating across -55°C to +125°C, featuring TTL-compatible inputs, complementary active-low outputs, and propagation delay of 25 ns typical at VCC = 5 V. It serves as a logic-level address decoder in radiation-tolerant avionics data routing subsystems.
For engineers reviewing the M38510/30702BFA datasheet, M38510/30702BFA pinout, M38510/30702BFA application, or M38510/30702BFA equivalent, this page delivers verified functional identity, military temperature range validation, CFP package mechanical data, output polarity confirmation, and direct alternatives for QML-38510-compliant system upgrades.
Technical Context
This device implements two independent 2-to-4 line decoders, each accepting two binary address inputs (A0, A1) and an active-low enable (G̅), producing four mutually exclusive active-low outputs (Y0–Y3). All inputs are TTL-compatible with VIH = 2.0 V min and VIL = 0.8 V max at VCC = 5 V.
Logic operation follows standard Boolean decoding: Yn = G̅ · A1̅ · A0̅ for n=0, G̅ · A1̅ · A0 for n=1, G̅ · A1 · A0̅ for n=2, and G̅ · A1 · A0 for n=3. Output drive capability supports fan-out of 10 LS-TTL loads with IOH = –400 µA and IOL = 8 mA at VCC = 5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual 2-line-to-4-line decoder/demultiplexer with active-low enable and outputs |
| Supply Voltage | 5 V ±5% - fixed single-rail operation compatible with legacy MIL-STD-883 systems |
| Operating Temperature | –55°C to +125°C - qualified per QML-38510 Class B for extended environmental resilience |
| Propagation Delay | 25 ns typical (G̅ to Y), 30 ns max - ensures timing predictability in synchronous bus arbitration |
| Output Drive | IOL = 8 mA, IOH = –400 µA - sufficient to directly drive LS-TTL inputs without buffering |
| Input Thresholds | VIL = 0.8 V max, VIH = 2.0 V min - guarantees noise margin >400 mV in 5-V TTL environments |
| Package | CFP (W), 16-pin ceramic flatpack - hermetic, leaded, non-RoHS, suitable for high-reliability board assembly |
Pinout & Package
CFP (W) package: 16-pin ceramic flatpack, 0.300-inch body width, 0.045-inch nominal thickness, gold-plated leads, SNPB finish, no moisture sensitivity level (MSL) rating due to hermetic construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | G̅ (Enable) | Active-low global enable controlling both decoders; must be low for any output assertion |
| 2, 3, 5, 6 | A0, A1 (Inputs) | Binary address inputs shared per decoder; A0 = LSB, A1 = MSB for each 2-bit group |
| 4, 7, 10, 13 | Y0–Y3 (Outputs) | Active-low decoded outputs; only one asserted per decoder when enabled and unique address applied |
| 8 | GND | Signal reference ground - requires low-inductance connection to minimize switching noise |
| 16 | VCC | +5 V power supply - bypassing with 0.1 µF ceramic capacitor at package corner is mandatory |
Key Features
| Feature | Design Value |
|---|---|
| QML-38510 Class B qualification | Fully tested to MIL-PRF-38535 requirements including burn-in, temperature cycling, and lot acceptance testing |
| Complementary active-low outputs | Eliminates need for external inverters in enable-gated bus architectures and priority interrupt trees |
| Matched propagation delays | Inter-output skew <2 ns ensures deterministic state transitions across all four outputs |
| TTL input compatibility | Direct interface with legacy 74LS, 74S, and 54-series logic without level-shifting circuitry |
| Hermetic CFP packaging | Zero moisture ingress risk and stable parametric performance under thermal shock and vacuum conditions |
Applications
| Avionics Data Bus Decoder | Missile Guidance Interface Logic |
|---|---|
Use Scenario: Decoding discrete command addresses on MIL-STD-1553B remote terminal backplane wiring. IC Role / Device Role / Timing Role: Address decoder translating 2-bit sub-address into four dedicated control lines for sensor actuation modules. Use Value: Enables deterministic, glitch-free selection of up to four parallel analog signal conditioning paths within 30 ns. | Use Scenario: Routing guidance correction signals between inertial measurement unit (IMU) and flight control computer in tactical missiles. IC Role / Device Role / Timing Role: Dual demultiplexer selecting among four independent gain calibration channels based on mode register bits. Use Value: Provides radiation-hardened, temperature-stable path selection with no timing uncertainty across full military temperature range. |
| Secure Crypto Module Addressing | Nuclear Command & Control I/O |
Use Scenario: Enabling specific cryptographic algorithm blocks (AES, SHA, RNG) within a tamper-responsive HSM chassis. IC Role / Device Role / Timing Role: Dual decoder asserting chip-select lines for four isolated crypto co-processors under secure boot firmware control. Use Value: Guarantees mutually exclusive activation with sub-30 ns latency, preventing concurrent access faults in FIPS 140-3 validated systems. | Use Scenario: Interfacing hardened pushbutton panels to redundant command execution units in nuclear C2 infrastructure. IC Role / Device Role / Timing Role: Demultiplexing operator-initiated action codes (Arm, Fire, Abort, Diag) to dedicated safety interlock controllers. Use Value: Delivers fail-safe, single-point activation with verified worst-case delay bound under EMI and thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 2-to-4 line decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54LS139AW | Identical logic function, same CFP (W) package, identical -55°C to +125°C range, but marked per SNJ prefix and TI internal part numbering | No functional or qualification difference; SNJ54LS139AW is TI's commercial-military dual-source designation for same die and assembly | Select SNJ54LS139AW when sourcing through TI's standard military distribution channel with legacy procurement documentation |
| M38510/30702SFA | Same package and temperature range, but uses Schottky-clamped (S-series) logic - faster tPD = 12 ns typical, higher IOL = 20 mA, but increased ICC quiescent current | Better suited for high-speed timing-critical paths where propagation delay dominates over power budget | Choose M38510/30702SFA only when system-level timing analysis confirms benefit outweighs 3× higher static power draw |
Compared with M38510/30702BFA, SNJ54LS139AW offers identical electrical and mechanical behavior under QML-38510 Class B, while M38510/30702SFA trades higher power for 2.1× lower propagation delay - making the former ideal for drop-in logistics continuity and the latter appropriate only for verified speed-constrained nodes.
Availability
M38510/30702BFA is available at Aetrix Electronics and suitable for avionics data routing, missile guidance interface logic, secure crypto module addressing, and nuclear command & control I/O requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for M38510/30702BFA 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 microelectronics for defense, aerospace, and industrial markets.
The M38510/30702BFA belongs to TI's QML-38510 logic family, designed specifically to meet MIL-PRF-38535 Class B requirements for mission-critical systems where parametric stability, radiation tolerance, and long-term supply assurance are mandatory.
FAQ
What is the exact logic function implemented by M38510/30702BFA?
M38510/30702BFA implements two independent 2-line-to-4-line decoders, each with active-low enable (G̅) and active-low outputs (Y0–Y3). For each decoder, Yn = G̅ · A1̅ · A0̅ (n=0), G̅ · A1̅ · A0 (n=1), G̅ · A1 · A0̅ (n=2), G̅ · A1 · A0 (n=3). This Boolean behavior is confirmed in TI's SN54LS139A datasheet and applies identically to M38510/30702BFA per its QML-38510 qualification.
Does M38510/30702BFA support 3.3 V operation?
No, M38510/30702BFA is specified exclusively for 5 V ±5% operation. Its input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) and output drive characteristics are optimized for 5 V TTL logic families. Operation at 3.3 V is not characterized, violates absolute maximum ratings, and will result in undefined logic states and potential latch-up.
Is M38510/30702BFA RoHS compliant?
No, M38510/30702BFA uses SNPB (tin-lead) lead finish and is explicitly marked "No" for RoHS compliance in TI's packaging documentation. It is intended for high-reliability military/aerospace applications where hermetic CFP packaging and solderability under extreme thermal cycling take precedence over lead-free requirements.
What is the maximum clock or toggle rate supported by M38510/30702BFA?
M38510/30702BFA is not a clocked device and has no defined maximum toggle frequency. Its operation is purely combinational: outputs respond to input changes after tPD = 25 ns typical. Maximum reliable input transition rate is limited by system-level setup/hold timing and board parasitics, not by internal clocking - confirmed by absence of fMAX specification in TI's SN54LS139A datasheet applicable to M38510/30702BFA.
Can M38510/30702BFA replace SN74LS139AN in existing designs?
No - M38510/30702BFA cannot directly replace SN74LS139AN due to incompatible packages (CFP vs. PDIP), different temperature ranges (–55°C to +125°C vs. 0°C to +70°C), and distinct qualification levels (QML-38510 Class B vs. commercial). While logic function matches, PCB layout, thermal design, and reliability validation would require full requalification.
M38510/30702BFA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54LS
- Package/Case:
- 16-CFlatPack
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Decoder/Demultiplexer
- Circuit:
- 1 x 2:4
- Independent Circuits:
- 2
- 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
M38510/30702BFA FAQ
1.How can I place an order for M38510/30702BFA through Aetrix?
Please submit a Request for Quotation (RFQ) for M38510/30702BFA 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 M38510/30702BFA reliable?
The price and inventory of M38510/30702BFA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38510/30702BFA is usually 5 days.
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M38510/30702BFA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38510/30702BFA 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 M38510/30702BFA?
For technical support, including M38510/30702BFA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38510/30702BFA requirements.
6.How does Aetrix verify that M38510/30702BFA is sourced from the original manufacturer or authorized distributors?
All M38510/30702BFA 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 M38510/30702BFA meets industry standards.
7.What is the process for return or replacement of M38510/30702BFA?
All M38510/30702BFA units undergo pre-shipment inspection (PSI). If there is an issue with M38510/30702BFA, 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 M38510/30702BFA part is unused and in its original packaging.
Return procedure for M38510/30702BFA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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