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Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Texas Instruments SNJ54S153J

Name: SNJ54S153J
Brand: Texas Instruments
SKU: SNJ54S153J
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SNJ54S153J

Manufacturer:: Texas Instruments

Category:: Signal Switches, Multiplexers, Decoders

Package:: -

Datasheet:: SNJ54S153J.pdf

Description:: MUX, S SERIES, 4 LINE INPUT TTL

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Product details

Overview

SNJ54S153J from Texas Instruments is a dual 4-line to 1-line data selector/multiplexer with independent strobe control per section, operating over –55°C to +125°C, featuring TTL-compatible inputs and outputs, 16-pin CDIP package, and military-grade qualification per MIL-PRF-38535. It performs bit-level signal routing in digital logic systems requiring high-reliability data path selection.

For engineers reviewing the SNJ54S153J datasheet, SNJ54S153J pinout, SNJ54S153J application, or SNJ54S153J equivalent, key considerations include its dual-channel multiplexing architecture, guaranteed operation across extended temperature range, strobe-enabled channel isolation, and compatibility with legacy 54-series TTL logic families in aerospace and defense subsystems.

Technical Context

The SNJ54S153J implements two independent 4:1 multiplexers sharing common select lines (S₀, S₁) but with separate strobes (1G̅, 2G̅), enabling asynchronous enable/disable of each data path. Each section routes one of four input signals (1C₀–1C₃ or 2C₀–2C₃) to its output (1Y or 2Y) based on binary select code.

It uses Schottky-clamped bipolar transistor technology for improved speed over standard TTL, with typical propagation delay of 5 ns (max 9 ns) at V_CC = 5 V, and supports fan-out of 10 LS-TTL loads. Input thresholds and output drive levels comply with 54S logic family specifications under military environmental stress conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
Function	Dual 4-input to 1-output data selector with individual strobe control per channel
Supply Voltage	4.5 V to 5.5 V - ensures stable operation in regulated 5 V military power rails
Propagation Delay	9 ns max (1Y/2Y to G̅) - enables synchronization in high-speed digital control timing paths
Operating Temperature	–55°C to +125°C - qualified for airborne, spaceborne, and ground vehicle electronics
Package	16-pin Ceramic Dual-In-Line Package (CDIP, drawing J) - hermetically sealed, leaded, MIL-STD-883 compliant
Logic Family	54S - Schottky TTL with enhanced speed and noise immunity vs. 54LS or 54

Pinout & Package

SNJ54S153J is housed in a 16-pin Ceramic Dual-In-Line Package (CDIP, drawing J), 0.300-inch wide body, with centerline pitch of 0.100 inch and through-hole leads suitable for high-reliability solder mounting.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4	Channel 1 data inputs (1C₀–1C₃)	Four parallel digital inputs routed to 1Y when 1G̅ = LOW and select code matches
5, 6	Select lines (S₀, S₁)	Binary address determining which of four inputs passes to output (00→C₀, 01→C₁, etc.)
7	Channel 1 strobe (1G̅)	Active-low enable: 1Y = HIGH-Z when 1G̅ = HIGH, regardless of select state
8	GND	Signal reference and power return for all internal logic and I/O
9	Channel 2 strobe (2G̅)	Independent active-low enable for second multiplexer section
10, 11, 12, 13	Channel 2 data inputs (2C₀–2C₃)	Second set of four inputs routed to 2Y under matching select and strobe conditions
14	V_CC	+5 V supply for internal logic and output drivers
15	1Y	Output of first multiplexer section - driven LOW/HIGH or tri-stated based on 1G̅ and select
16	2Y	Output of second multiplexer section - functionally identical to 1Y but independently controlled

Key Features

Feature	Design Value
Dual independent 4:1 multiplexers	Enables two simultaneous data routing decisions without shared enable conflict or timing skew
Individual strobe control per section	Allows selective channel disabling during system reconfiguration without affecting other data path
Schottky-clamped TTL process	Delivers 54S-series speed (9 ns max t_pd) while maintaining compatibility with legacy 54/74 logic interfaces
MIL-PRF-38535 Class B qualification	Meets screening, testing, and reliability requirements for military/aerospace applications including burn-in and temperature cycling
Hermetic CDIP package	Provides long-term moisture resistance and mechanical stability in harsh environmental deployments

Applications

Avionics Flight Control Interface	Tactical Radios Signal Routing
Use Scenario: Selecting between redundant sensor inputs (e.g., airspeed, altitude) for flight computer arbitration logic. IC Role / Device Role / Timing Role: Dual-channel multiplexer providing fail-safe input switching with independent strobe gating per sensor chain. Use Value: Enables real-time validation of sensor consistency before data fusion, leveraging SNJ54S153J's guaranteed –55°C to +125°C operation and low propagation delay.	Use Scenario: Routing baseband audio or digital control signals between multiple modems and transceiver modules in multi-band radios. IC Role / Device Role / Timing Role: Data path selector managing shared interface resources under microcontroller command via S₀/S₁ and strobes. Use Value: Reduces PCB interconnect complexity by consolidating two independent 4:1 routing functions into one hermetically sealed device qualified for vibration and thermal shock.
Missile Guidance System Test Equipment	Ground Vehicle Diagnostic Subsystem
Use Scenario: Emulating sensor or actuator responses during hardware-in-the-loop (HIL) simulation of guidance algorithms. IC Role / Device Role / Timing Role: Programmable signal injector selecting among pre-defined test patterns synchronized to system clock edges. Use Value: SNJ54S153J's 9 ns max propagation delay ensures precise timing alignment with FPGA-based stimulus generators in real-time test benches.	Use Scenario: Multiplexing diagnostic bus signals (e.g., CAN status, power rail monitors, thermal sensors) to a central controller in armored vehicle ECUs. IC Role / Device Role / Timing Role: Robust signal router handling mixed-voltage monitoring data under EMI-heavy engine bay conditions. Use Value: Hermetic CDIP packaging and MIL-qualified construction ensure uninterrupted operation despite wide ambient temperature swings and mechanical shock exposure.

Avionics Flight Control Interface

Tactical Radios Signal Routing

Use Scenario: Selecting between redundant sensor inputs (e.g., airspeed, altitude) for flight computer arbitration logic.

IC Role / Device Role / Timing Role: Dual-channel multiplexer providing fail-safe input switching with independent strobe gating per sensor chain.

Use Value: Enables real-time validation of sensor consistency before data fusion, leveraging SNJ54S153J's guaranteed –55°C to +125°C operation and low propagation delay.

Use Scenario: Routing baseband audio or digital control signals between multiple modems and transceiver modules in multi-band radios.

IC Role / Device Role / Timing Role: Data path selector managing shared interface resources under microcontroller command via S₀/S₁ and strobes.

Use Value: Reduces PCB interconnect complexity by consolidating two independent 4:1 routing functions into one hermetically sealed device qualified for vibration and thermal shock.

Missile Guidance System Test Equipment

Ground Vehicle Diagnostic Subsystem

Use Scenario: Emulating sensor or actuator responses during hardware-in-the-loop (HIL) simulation of guidance algorithms.

IC Role / Device Role / Timing Role: Programmable signal injector selecting among pre-defined test patterns synchronized to system clock edges.

Use Value: SNJ54S153J's 9 ns max propagation delay ensures precise timing alignment with FPGA-based stimulus generators in real-time test benches.

Use Scenario: Multiplexing diagnostic bus signals (e.g., CAN status, power rail monitors, thermal sensors) to a central controller in armored vehicle ECUs.

IC Role / Device Role / Timing Role: Robust signal router handling mixed-voltage monitoring data under EMI-heavy engine bay conditions.

Use Value: Hermetic CDIP packaging and MIL-qualified construction ensure uninterrupted operation despite wide ambient temperature swings and mechanical shock exposure.

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
SNJ54LS153J	Lower speed (15 ns max t_pd), reduced power consumption (20 mW avg), same pinout and logic function	Better suited for lower-frequency control logic where propagation delay is non-critical	Choose SNJ54LS153J if system timing budget allows >15 ns latency and power efficiency is prioritized over speed
SN54153J	Standard TTL (non-Schottky), slower (22 ns max t_pd), higher power (45 mW avg), same pinout and truth table	Legacy compatibility only; lacks Schottky speed and noise margin of 54S series	Use SN54153J only for direct replacement in existing 54-series designs where no timing or power upgrade is needed

Compared with SNJ54LS153J and SN54153J, the SNJ54S153J delivers the fastest propagation delay and highest noise immunity in the 54-family 153 multiplexer variants, making it optimal for time-critical signal routing in high-reliability platforms where speed and robustness are jointly required.

Availability

SNJ54S153J is available at Aetrix Electronics and suitable for avionics interface design, tactical communications hardware, missile test equipment, and ground vehicle diagnostics requiring stable component supply under extended temperature and reliability constraints.

Supply support for SNJ54S153J 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 logic solutions for industrial, automotive, aerospace, and communications markets.

The SNJ54S153J belongs to TI's military-grade 54S logic family, designed specifically for high-speed, high-reliability digital signal routing in defense and space applications where performance consistency under extreme environmental stress is mandatory.

FAQ

What is the operating temperature range specified for SNJ54S153J?

The SNJ54S153J is rated for operation from –55°C to +125°C, meeting MIL-PRF-38535 Class B environmental requirements. This range is validated through temperature cycling, steady-state bias life testing, and thermal shock qualification - critical for deployment in aircraft, missiles, and ground vehicles exposed to extreme ambient conditions. The SNJ54S153J maintains full functionality and timing compliance across this entire span without derating.

Is SNJ54S153J pin-compatible with SNJ54LS153J?

Yes, the SNJ54S153J is pin-compatible with SNJ54LS153J - both use identical 16-pin CDIP (drawing J) packaging and share identical pin assignments for inputs, outputs, selects, strobes, V_CC, and GND. No PCB layout change is required when substituting between these variants, though timing and power characteristics differ due to underlying Schottky vs. low-power Schottky process technologies.

Does SNJ54S153J support independent data selection for each multiplexer section?

No - the SNJ54S153J shares the same select lines (S₀ and S₁) between both 4:1 sections, meaning both channels route the same input index (e.g., C₀ or C₂) simultaneously. However, each section has its own strobe (1G̅ and 2G̅), allowing independent enable/disable of output driving while preserving select address alignment. This architecture supports synchronized yet gated dual-path routing.

What logic family does SNJ54S153J belong to, and how does it differ from 74S153?

The SNJ54S153J belongs to the 54S (military-grade Schottky TTL) family, distinguished from commercial 74S153 by extended temperature range (–55°C to +125°C vs. 0°C to +70°C), tighter AC/DC parametric limits, and MIL-PRF-38535 qualification. Both share identical logic function, pinout, and electrical behavior within their respective temperature domains, but only the 54S variant is screened for aerospace and defense use.

Can SNJ54S153J be used in new designs given its OBSOLETE status per TI documentation?

Although TI lists SNJ54S153J as OBSOLETE in current packaging addenda, Aetrix Electronics maintains verified inventory of original TI-manufactured SNJ54S153J devices with full traceability and conformance to MIL-PRF-38535. These units remain fully suitable for new designs in programs requiring proven, long-lifecycle components with documented military qualification - especially where redesign to newer logic families is impractical or certification-cost-prohibitive.

SNJ54S153J 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:: -

Mounting Type:: -

Supplier Device Package:: -

SNJ54S153J FAQ

1.How can I place an order for SNJ54S153J through Aetrix?

Please submit a Request for Quotation (RFQ) for SNJ54S153J 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 SNJ54S153J reliable?

The price and inventory of SNJ54S153J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SNJ54S153J is usually 5 days.

3.What payment methods are accepted for SNJ54S153J?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SNJ54S153J transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SNJ54S153J?

SNJ54S153J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SNJ54S153J 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 SNJ54S153J?

For technical support, including SNJ54S153J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SNJ54S153J requirements.

6.How does Aetrix verify that SNJ54S153J is sourced from the original manufacturer or authorized distributors?

All SNJ54S153J 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 SNJ54S153J meets industry standards.

7.What is the process for return or replacement of SNJ54S153J?

All SNJ54S153J units undergo pre-shipment inspection (PSI). If there is an issue with SNJ54S153J, 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 SNJ54S153J part is unused and in its original packaging.

Return procedure for SNJ54S153J:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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