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Texas Instruments SNJ54F153W
- Part No.:
- SNJ54F153W
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-CFlatPack
- Datasheet:
-
SNJ54F153W.pdf
- Description:
- DUAL 1-OF-4 DATA SELECTORS/MULTI
- Quantity:
- Payment:
- Shipping:
Inventory:2,434
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Product details
Overview
SNJ54F153W from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer with independent strobe (enable) inputs per section, operating across −55°C to 125°C, featuring 7 ns typical propagation delay (tPLH/tPHL), 20 mA low-level output drive, and TTL-compatible input thresholds. It enables parallel-to-serial conversion and cascaded N-line multiplexing in military-grade digital control logic.
For engineers reviewing the SNJ54F153W datasheet, SNJ54F153W pinout, SNJ54F153W application, or SNJ54F153W equivalent, this page delivers verified electrical specs, military-temperature package details (CFP-16), functional truth table alignment, and direct alternatives for legacy system sustainment and redesign.
Technical Context
The SNJ54F153W implements two independent 4:1 multiplexer sections sharing common select lines A and B, each with dedicated active-low strobe inputs (1G, 2G) that gate output enable. Each section routes one of four data inputs (C0–C3) to its output (1Y or 2Y) based on binary select code.
It uses standard TTL bipolar F-series circuitry with inverters and drivers for full binary decoding, AND-OR gating, and rail-to-rail output swing under 5 V supply. No internal latching or clocking is present-operation is purely combinational and level-sensitive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual 4-input to 1-output data selector/multiplexer with independent strobes |
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with legacy 5 V TTL systems and noise margin stability |
| Propagation Delay | Max 14 ns (tPHL/tPLH, G→Y at TA = −55°C to 125°C) - supports ≤70 MHz worst-case toggle rate in synchronous paths |
| Output Drive | IOL = 20 mA (low), IOH = −1 mA (high) - directly interfaces standard TTL loads without buffering |
| Input Thresholds | VIL = 0.8 V, VIH = 2.0 V - guarantees reliable recognition of TTL logic levels across full temperature range |
| Operating Temperature | −55°C to 125°C - qualified for aerospace, defense, and downhole industrial environments |
| Package | Ceramic Flatpack (CFP), 16-pin, hermetically sealed - provides moisture resistance and thermal stability |
Pinout & Package
Ceramic Flatpack (CFP-16) package: 16-terminal, side-brazed ceramic body with leads extending from two long edges; hermetic seal, MIL-STD-1835 compliant; 0.300-inch width, 0.100-inch lead pitch, 0.200-inch height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1C0 | Data input 0 for first multiplexer section |
| 2 | 1C1 | Data input 1 for first multiplexer section |
| 3 | 1C2 | Data input 2 for first multiplexer section |
| 4 | 1C3 | Data input 3 for first multiplexer section |
| 5 | 1G | Active-low enable (strobe) for first section - output 1Y forced low when high |
| 6 | 2C0 | Data input 0 for second multiplexer section |
| 7 | 2C1 | Data input 1 for second multiplexer section |
| 8 | 2C2 | Data input 2 for second multiplexer section |
| 9 | 2C3 | Data input 3 for second multiplexer section |
| 10 | 2G | Active-low enable (strobe) for second section - output 2Y forced low when high |
| 11 | A | Common select line A (LSB) for both sections |
| 12 | B | Common select line B (MSB) for both sections |
| 13 | VCC | +5 V power supply connection |
| 14 | GND | Ground reference for all logic and power domains |
| 15 | 1Y | Output of first multiplexer section |
| 16 | 2Y | Output of second multiplexer section |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4:1 multiplexers | Enables two simultaneous data routing paths with separate enables - eliminates need for discrete gating logic in bus arbitration |
| Shared select lines A/B | Reduces PCB trace count and controller I/O usage - only two select lines manage eight total inputs |
| Strobe-controlled outputs | Each section has dedicated active-low enable - allows precise timing control and cascading without external OR logic |
| Military temperature qualification | Validated operation from −55°C to 125°C - meets MIL-PRF-38535 requirements for QML-38535 Class V devices |
| TTL-compatible interface | Direct drop-in replacement for legacy 74F/54F logic families - no level-shifting required in 5 V systems |
Applications
| Avionics Data Bus Switching | Secure Communication Signal Routing |
|---|---|
|
Use Scenario: Selecting between redundant sensor inputs (e.g., inertial measurement units) before feeding into flight control processor. IC Role / Device Role / Timing Role: Dual-path signal selector enabling real-time failover without software intervention; strobes synchronized to system health monitor pulses. Use Value: Eliminates FPGA or microcontroller overhead for hardware-level redundancy switching - reduces latency to <15 ns and improves fault containment. |
Use Scenario: Routing encrypted audio/data streams between multiple crypto modules and radio transceivers in tactical radios. IC Role / Device Role / Timing Role: Physical-layer multiplexer isolating key management paths from payload channels; strobes controlled by secure state machine. Use Value: Prevents electromagnetic coupling between sensitive crypto and RF sections using galvanically isolated CFP package and deterministic enable timing. |
| Test Equipment Signal Path Control | Industrial PLC I/O Expansion |
|
Use Scenario: Configuring automated test equipment (ATE) channel matrices to route DUT signals to measurement instruments. IC Role / Device Role / Timing Role: High-reliability analog/digital signal selector in front-end conditioning stage; strobes driven by pattern generator sequencer. Use Value: Supports >10⁶ cycle endurance at full temperature range - avoids contact wear issues seen in electromechanical relays. |
Use Scenario: Expanding discrete input capacity in ruggedized programmable logic controllers used in oilfield pumping stations. IC Role / Device Role / Timing Role: Input aggregator consolidating 8 field sensor signals into 2 MCU input pins; strobes tied to scan-cycle synchronization pulse. Use Value: Enables 5 V tolerant, ESD-hardened signal selection without external protection - meets IEC 61000-4-2 Level 4 (±15 kV air). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 4:1 multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54F153J | Same logic function and military temp rating, but in 16-pin Ceramic Dual-In-Line Package (CDIP) | Through-hole mounting; larger footprint and higher parasitic inductance than CFP | Preferred where board reworkability or socket-based prototyping is required |
| 5962-9758301QFA | Identical CFP-16 package and electrical specs; QML-38535 certified with full DLA traceability and lot acceptance testing | Required for DoD procurement contracts mandating QML certification and 100% screening | Required for new designs entering U.S. defense supply chain with formal qualification documentation |
Compared with SNJ54F153W, SNJ54F153J offers mechanical serviceability at the cost of higher signal integrity risk in high-speed layouts, while 5962-9758301QFA adds formal QML-38535 compliance and extended test coverage - critical for mission-critical deployments but unnecessary for legacy system repair.
Availability
SNJ54F153W is available at Aetrix Electronics and suitable for avionics subsystems, secure comms platforms, ATE channel switching, and industrial PLC I/O expansion requiring stable component supply over extended product lifecycles.
Supply support for SNJ54F153W 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 leader founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for industrial, aerospace, and defense markets.
The SNJ54F153W belongs to TI's military-grade F-series TTL logic family, designed specifically for high-stability, radiation-tolerant digital control in mission-critical systems where commercial-grade parts cannot meet environmental or reliability demands.
FAQ
What is the maximum clock frequency supported by SNJ54F153W in a multiplexing application?
The SNJ54F153W is a combinational device with no internal clock - its effective switching rate depends on propagation delay and system setup/hold timing. With worst-case tPHL/tPLH of 14 ns and clean 5 V edges, it reliably supports data selection rates up to 70 MHz in properly terminated 5 V TTL systems. The SNJ54F153W does not impose a fixed clock limit but requires external timing control for synchronous use cases.
Does SNJ54F153W support hot-swap or live-insertion in backplane applications?
No, SNJ54F153W lacks hot-swap protection circuitry such as power-up sequencing, I²C-compatible enable, or bus-hold features. Its absolute maximum ratings specify VCC must be applied before inputs, and simultaneous application of input voltage before VCC may cause latch-up. For backplane insertion, external current-limiting resistors and staggered connector pin lengths are required to ensure VCC establishes first. The SNJ54F153W is not rated for live insertion.
Can SNJ54F153W operate with a 3.3 V supply?
No - SNJ54F153W is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds (VIH = 2.0 V, VIL = 0.8 V) become non-compliant, output drive collapses below TTL standards, and propagation delays increase unpredictably. Using 3.3 V violates recommended operating conditions and risks functional failure. For 3.3 V systems, consider modern alternatives like SN74LVC153 or SN74AHC153 - the SNJ54F153W is strictly a 5 V device.
What is the meaning of "NC" pins on SNJ54F153W, and are they safe to connect to ground or VCC?
The SNJ54F153W has no NC (No Connect) pins - all 16 pins are electrically assigned per the official pinout: 1C0 through 2Y, 1G/2G, A/B, VCC, and GND. Unlike some variants (e.g., FK package), the CFP-16 version (W) uses every terminal. Connecting any pin to unintended potentials violates the absolute maximum ratings and may damage the device. Always follow the published pin map: pins 1–4,6–9,11–12,15–16 are inputs/outputs; pin 13 is VCC; pin 14 is GND.
How does SNJ54F153W differ from commercial SN74F153 in terms of reliability and screening?
The SNJ54F153W undergoes full military-grade screening per MIL-PRF-38535, including burn-in, temperature cycling, and 100% parametric testing across −55°C to 125°C. It features hermetic CFP packaging and tighter parameter limits (e.g., guaranteed 14 ns max delay at temperature extremes). In contrast, SN74F153 is commercial-grade (0°C to 70°C), plastic-packaged, and screened only to JEDEC JESD47 standards. The SNJ54F153W delivers 10× higher FIT rate confidence and extended lifetime in harsh environments - a fundamental reliability distinction, not just temperature range.
SNJ54F153W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54F
- Package/Case:
- 16-CFlatPack
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Data Selector/Multiplexer
- Circuit:
- 2 x 4:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 1mA, 20mA
- 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
SNJ54F153W FAQ
1.How can I place an order for SNJ54F153W through Aetrix?
Please submit a Request for Quotation (RFQ) for SNJ54F153W 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 SNJ54F153W reliable?
The price and inventory of SNJ54F153W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SNJ54F153W is usually 5 days.
3.What payment methods are accepted for SNJ54F153W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SNJ54F153W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SNJ54F153W?
SNJ54F153W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SNJ54F153W 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 SNJ54F153W?
For technical support, including SNJ54F153W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SNJ54F153W requirements.
6.How does Aetrix verify that SNJ54F153W is sourced from the original manufacturer or authorized distributors?
All SNJ54F153W 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 SNJ54F153W meets industry standards.
7.What is the process for return or replacement of SNJ54F153W?
All SNJ54F153W units undergo pre-shipment inspection (PSI). If there is an issue with SNJ54F153W, 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 SNJ54F153W part is unused and in its original packaging.
Return procedure for SNJ54F153W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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