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Texas Instruments SNJ54ALS153W
- Part No.:
- SNJ54ALS153W
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- -
- Datasheet:
-
SNJ54ALS153W.pdf
- Description:
- 54ALS153 DUAL 1-OF-4 DATA SELECT
- Quantity:
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Product details
Overview
SNJ54ALS153W from Texas Instruments is a dual 1-of-4 data selector/multiplexer IC designed for military-grade digital logic systems. It features two independent 4-input multiplexers with common select lines (A, B), separate strobe inputs (1G, 2G), and TTL-compatible 5-V operation. With propagation delays as low as 3 ns (data-to-output) and full −55°C to +125°C temperature range support, it enables reliable signal routing in avionics, radar timing control, and hardened embedded controllers.
For engineers reviewing the SNJ54ALS153W datasheet, SNJ54ALS153W pinout, SNJ54ALS153W application, or SNJ54ALS153W equivalent, key selection criteria include its CFP (W) ceramic flatpack package, military temperature qualification, dual-channel 1-of-4 multiplexing architecture, and compatibility with legacy ALS logic families in high-reliability board-level designs.
Technical Context
The SNJ54ALS153W implements two independent AND-OR-gate-based multiplexers, each decoding binary-select inputs A and B to route one of four data inputs (C0–C3) to its output (Y). Select lines A and B are shared between both sections, while strobe inputs 1G and 2G enable/disable each section independently-enabling cascaded n-line-to-n-line routing without external gating.
It uses bipolar ALS (Advanced Low-Power Schottky) technology, delivering 24-mA sink current capability and 2.6-mA source current at VCC = 5 V, with guaranteed switching performance across the full military temperature range. Input thresholds (VIH = 2 V, VIL = 0.8 V) and output voltage levels (VOH ≥ 2.4 V, VOL ≤ 0.4 V) ensure robust noise margin and interoperability with standard TTL and LS logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual 1-of-4 data selector/multiplexer with common select lines and independent strobes |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5-V TTL power rails and tolerant of supply variation |
| Operating Temperature | −55°C to +125°C - qualified for aerospace, defense, and industrial environments requiring extended thermal stability |
| Propagation Delay | 3 ns (min) / 29 ns (max) data-to-output - supports high-speed address/data routing in real-time control loops |
| Output Drive | 24 mA sink / 2.6 mA source - sufficient to drive multiple TTL inputs or small capacitive loads directly |
| Input Thresholds | VIH = 2.0 V, VIL = 0.8 V - provides ≥0.4 V noise margin under worst-case VCC and temperature conditions |
| Package Type | Ceramic Flatpack (CFP, W package) - hermetically sealed, low-inductance, MIL-STD-883 qualified |
Pinout & Package
Ceramic Flatpack (W) package: 16-pin, hermetically sealed, leadless ceramic construction with solderable metallized terminations. Designed for high-reliability mounting on ceramic substrates or PTH-compatible metalized pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1G (Strobe 1) | Active-low enable for first multiplexer section; disables 1Y when high |
| 2 | B (Select) | MSB binary select input shared by both sections |
| 3 | 1C3 | Data input 3 for first multiplexer section |
| 4 | 1C2 | Data input 2 for first multiplexer section |
| 5 | 1C1 | Data input 1 for first multiplexer section |
| 6 | 1C0 | Data input 0 for first multiplexer section |
| 7 | 1Y | Output of first multiplexer section |
| 8 | GND | Ground reference for all logic and power connections |
| 9 | 2C0 | Data input 0 for second multiplexer section |
| 10 | 2C1 | Data input 1 for second multiplexer section |
| 11 | 2C2 | Data input 2 for second multiplexer section |
| 12 | 2C3 | Data input 3 for second multiplexer section |
| 13 | 2Y | Output of second multiplexer section |
| 14 | 2G (Strobe 2) | Active-low enable for second multiplexer section; disables 2Y when high |
| 15 | A (Select) | LSB binary select input shared by both sections |
| 16 | VCC | +5 V power supply connection |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent multiplexers | Two fully functional 1-of-4 selectors sharing only A/B select lines - enables parallel signal routing without inter-channel crosstalk |
| Strobe-controlled enable | Separate 1G and 2G inputs allow precise, asynchronous gating of each channel - critical for time-triggered arbitration and fault-isolated I/O |
| Military temperature rating | Characterized from −55°C to +125°C - validated for deployment in uncontrolled environmental enclosures and high-power density chassis |
| ALS logic family compatibility | Direct drop-in replacement for SN54LS153 and interface-compatible with SN54S153 - preserves legacy board designs during reliability upgrades |
| CFP (W) hermetic packaging | Ceramic flatpack construction meets MIL-PRF-38534 requirements - ensures long-term moisture resistance and mechanical stability under thermal cycling |
Applications
| Avionics Data Routing | Radar Pulse Timing Control |
|---|---|
Use Scenario: Selecting among multiple sensor data streams (e.g., inertial, GPS, barometric) for real-time fusion in flight management units. IC Role / Device Role / Timing Role: Dual-channel multiplexer routing time-critical telemetry inputs to a central processor based on mode-dependent address bits. Use Value: Enables deterministic, low-latency input selection (<29 ns max delay) with independent strobe control per channel to prevent metastability during mode transitions. | Use Scenario: Gating RF transmit/receive timing signals in phased-array radar subsystems where pulse alignment must be maintained across multiple TR modules. IC Role / Device Role / Timing Role: Synchronizing trigger distribution using strobed multiplexing to isolate timing paths during calibration vs. operational modes. Use Value: Independent 1G/2G enables hardware-level isolation of timing domains, eliminating software-induced jitter in safety-critical pulse generation. |
| Hardened Industrial PLC I/O | Military Communications Backplane |
Use Scenario: Consolidating discrete I/O status signals from redundant field sensors into a single diagnostic bus within explosion-proof control cabinets. IC Role / Device Role / Timing Role: Multiplexing fault-monitoring outputs from dual-channel safety circuits onto shared diagnostic lines. Use Value: −55°C to +125°C operation ensures uninterrupted function in oilfield or desert-deployed enclosures without active cooling. | Use Scenario: Managing address/data bus arbitration across multiple line-replaceable units (LRUs) in tactical radio backplanes operating under EMI-heavy conditions. IC Role / Device Role / Timing Role: Performing parallel-to-serial conversion of LRU identification codes during hot-swap enumeration sequences. Use Value: CFP packaging and ALS drive strength maintain signal integrity across 15-cm backplane traces with >200 mV noise margin at 10 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 1-of-4 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN54ALS153J | Same die, CDIP (J) package - through-hole, 0.3″ wide, tin-lead leads | Preferred for prototyping, manual rework, or legacy through-hole PCBs | Select SN54ALS153J when board assembly requires hand-soldering or socketing; SNJ54ALS153W is superior for surface-mount, high-vibration, or hermetic sealing needs. |
| SN74ALS153DR | Commercial-grade (0°C to 70°C), SOIC (D) package, RoHS-compliant NiPdAu finish | Targeted at cost-sensitive, non-military commercial systems with standard reflow profiles | Choose SN74ALS153DR for volume production in industrial automation where extended temperature range is not required and lead-free compliance is mandatory. |
Compared with SN54ALS153J and SN74ALS153DR, the SNJ54ALS153W uniquely combines military temperature qualification, hermetic CFP packaging, and tin-lead metallization - making it the only option qualified for sustained operation in airborne platforms, missile guidance electronics, and space-qualified ground support equipment.
Availability
SNJ54ALS153W is available at Aetrix Electronics and suitable for avionics data routing, radar pulse timing control, hardened industrial PLC I/O, and military communications backplane applications requiring stable component supply across extended product lifecycles.
Supply support for SNJ54ALS153W 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 global semiconductor company founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.
The SNJ54ALS153W belongs to TI's military-grade ALS logic family, engineered specifically for mission-critical systems demanding guaranteed performance across extreme temperatures, radiation-tolerant layouts, and long-term supply chain stability.
FAQ
What is the maximum propagation delay of the SNJ54ALS153W under worst-case conditions?
The SNJ54ALS153W exhibits a maximum propagation delay of 29 ns from data input (C0–C3) to output (Y) at VCC = 4.5 V, CL = 50 pF, and across the full −55°C to +125°C operating range. This value is specified in the SDAS206A datasheet switching characteristics table and applies to both multiplexer sections. The SNJ54ALS153W maintains this timing guarantee without derating, supporting deterministic timing in hard real-time systems.
Does the SNJ54ALS153W support 3-state outputs?
No, the SNJ54ALS153W does not feature 3-state outputs. It is a standard dual 1-of-4 multiplexer with totem-pole TTL-compatible outputs. For 3-state functionality, TI offers the ′ALS253 and SN74AS253A as alternatives - but these are distinct part numbers with different pinouts and logic behavior. The SNJ54ALS153W output drivers are always active when enabled via 1G or 2G, and present defined logic levels (VOH/VOL) at all times.
What package type and dimensions does the SNJ54ALS153W use?
The SNJ54ALS153W uses a 16-pin Ceramic Flatpack (CFP) package designated "W" per TI's packaging nomenclature. Its outline matches the NS0016A standard: 10.4 mm × 7.4 mm body, 0.51 mm lead pitch, and 2.00 mm maximum height. The package is hermetically sealed with solderable metallized terminations and complies with MIL-PRF-38534 Class K requirements for high-reliability applications.
Can the SNJ54ALS153W be used as a direct replacement for the SN54LS153 in existing designs?
Yes, the SNJ54ALS153W is a functional and pin-compatible upgrade to the SN54LS153, offering improved speed (29 ns vs. 35 ns max), lower power consumption, and enhanced noise immunity due to ALS technology. Electrical thresholds, pinout, and DC/AC specifications align per the SDAS206A datasheet. No PCB changes are required, though system-level timing validation is recommended due to faster edge rates.
What is the absolute maximum supply voltage rating for the SNJ54ALS153W?
The absolute maximum supply voltage (VCC) for the SNJ54ALS153W is 7 V, as specified in the SDAS206A datasheet Absolute Maximum Ratings table. Operation above 5.5 V - even briefly - risks permanent damage. Designers must ensure power supply regulation stays within the recommended 4.5 V to 5.5 V range, with transient suppression if interfacing with noisy 5-V rails. Exceeding 7 V voids qualification and may cause latch-up or junction breakdown.
SNJ54ALS153W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Circuit:
- -
- Independent Circuits:
- -
- Current - Output High, Low:
- -
- Voltage Supply Source:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
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- Supplier Device Package:
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SNJ54ALS153W FAQ
1.How can I place an order for SNJ54ALS153W through Aetrix?
Please submit a Request for Quotation (RFQ) for SNJ54ALS153W 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 SNJ54ALS153W reliable?
The price and inventory of SNJ54ALS153W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SNJ54ALS153W is usually 5 days.
3.What payment methods are accepted for SNJ54ALS153W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SNJ54ALS153W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SNJ54ALS153W?
SNJ54ALS153W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SNJ54ALS153W 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 SNJ54ALS153W?
For technical support, including SNJ54ALS153W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SNJ54ALS153W requirements.
6.How does Aetrix verify that SNJ54ALS153W is sourced from the original manufacturer or authorized distributors?
All SNJ54ALS153W 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 SNJ54ALS153W meets industry standards.
7.What is the process for return or replacement of SNJ54ALS153W?
All SNJ54ALS153W units undergo pre-shipment inspection (PSI). If there is an issue with SNJ54ALS153W, 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 SNJ54ALS153W part is unused and in its original packaging.
Return procedure for SNJ54ALS153W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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