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Product Advantage ▼
The SN74LS153N integrated circuit features a dual independent 4-to-1 data selector architecture, structurally isolating two multiplexer modules to eliminate internal signal crosstalk. This specific physical layout allows engineers to implement complex N-line to 1-line cascade expansions without signal degradation. By leveraging its parallel-to-serial conversion capabilities, designers can efficiently route multiple data streams through restricted PCB traces. The IC delivers high fan-out with low impedance output, driving downstream logic gates decisively. This configuration directly reduces the component count on printed circuit boards, freeing up valuable physical space and lowering overall bill-of-materials expenses for large-scale manufacturing runs.
Operating strictly within the 4.75V to 5.25V standard TTL voltage window, this component provides unwavering electrical stability. The internal silicon die incorporates an optimized pull-up resistor network that minimizes low-level input current draw. Compared to legacy standard TTL variants, the Low-power Schottky (LS) technology significantly drops thermal dissipation. When deployed in continuous-duty industrial environments, the device maintains a crisp, predictable signal output waveform with minimal temperature drift across its 0℃ to +70℃ operational range, ensuring dependable logic switching without thermal runaway.
Packaged in the industry-standard DIP-16 format, this multiplexer offers distinct mechanical advantages. The matte-black epoxy resin body provides excellent thermal shielding, while the rigid, tin-plated pins are spaced precisely at 2.54mm intervals. This exact spacing ensures a firm, tactile engagement when seated into standard IC sockets or automated wave-soldering lines. The durable through-hole construction resists physical shearing forces and vibration common in heavy machinery control panels, while also facilitating straightforward manual extraction and replacement during field maintenance or laboratory prototype verification.
Each multiplexer module integrates a dedicated, active-low strobe enable pin, granting granular control over logic gating. By pulling the enable terminal low, the output is activated; pulling it high forces the output into a predetermined state, effectively shielding downstream components from unwanted data transitions. This built-in gating mechanism facilitates precise time-sharing transmission across shared data buses. Implementing this native strobe function eliminates the need for external discrete logic gates, streamlining the schematic and tightening the physical layout of the control board.
We support rigorous production schedules with a highly dependable supply chain infrastructure. Procurement teams benefit from transparent, tiered volume pricing structures, where larger acquisition quantities yield immediate per-unit cost reductions. To accelerate design-in phases, we provide comprehensive original manufacturer datasheets and technical documentation for immediate download. We maintain a verified, real-time inventory of these components, ensuring accurate lead-time forecasting. For legacy system maintenance, this IC serves as a direct cross-reference replacement for older 74153 series chips. All shipments include complete HTS customs codes, origin declarations, and RoHS compliance certificates to guarantee frictionless international transit and immediate factory floor deployment.
Technical Parameters ▼
Parameter Item | Specific Specification |
|---|---|
Model Number | SN74LS153N |
Device Type | Dual 4-to-1 Line Data Multiplexer |
Logic Series | LS Low-power Schottky TTL |
Supply Voltage Range | 4.75 V ~ 5.25 V DC |
Operating Temperature | 0 ℃ ~ +70 ℃ |
Package Form | DIP-16 Through Hole Package |
Input Signal Level | Standard TTL Logic Level |
Enable Pin Feature | Active Low Strobe Control |
Output Structure | Totem Pole Logic Output |
Typical Power Dissipation | 31 mW per dual circuit |
Switching Propagation Delay | Max 24 ns |
Compliance Standard | RoHS Lead-free Compatible |
Product Uses ▼
Within the architecture of programmable logic controller (PLC) peripheral boards, the SN74LS153N functions as a critical multi-channel digital signal aggregator. Industrial environments rely on an array of limit switches, proximity sensors, and optical detectors, all feeding discrete signals back to the main control unit. This multiplexer consolidates these multiple switching inputs, sequentially routing them to a single microcontroller sampling port. This architectural choice drastically reduces the required number of MCU input/output pins, simplifies the copper trace routing on the PCB, and hardens the data acquisition process against electromagnetic interference common in factory settings.
The physical characteristics of the DIP-16 package make it an essential component for electronic engineering education and rapid hardware prototyping. In university laboratories and corporate R&D facilities, the rigid pins of the IC slide smoothly into solderless breadboards, providing immediate tactile feedback and secure electrical contact. Instructors and hardware developers utilize this data selector to physically demonstrate Boolean logic, time-division multiplexing, and active-low gating principles. Its resilience against static discharge and minor voltage fluctuations ensures a long operational lifespan despite frequent handling and repeated insertions.
In sophisticated data acquisition architectures, this multiplexer serves as a foundational component for parallel-to-serial data conversion. When routing multiple parallel sensor feeds across long distances, physical wire count becomes a severe limitation. By cascading several SN74LS153N units, hardware engineers can sequentially poll parallel data lines and output a single, continuous serial stream. This method drastically reduces cabling weight, minimizes connector pin requirements, and lowers the susceptibility to signal degradation across extensive industrial facility layouts.
FAQ ▼
A: Every unit in our inventory is guaranteed as factory-original silicon, undergoing strict automated optical inspection (AOI) and electrical verification prior to dispatch. To support your compliance and import requirements, we supply full RoHS environmental certifications, exact HTS customs classification codes, and detailed original manufacturer datasheets. This documentation ensures your incoming quality control (IQC) teams can immediately verify component specifications and clear international customs without administrative delays.
A: The device is engineered specifically for standard 4.75V-5.25V TTL logic environments, making it natively compatible with any 5V microcontroller architecture. The input thresholds and totem-pole output structures match the logic levels of standard MCUs, allowing direct trace connections without the need for intermediate voltage level shifters or pull-up resistor arrays. This direct compatibility accelerates board design and further minimizes peripheral component count.
A: We offer structured, tiered pricing models designed to optimize your bill-of-materials costs as your production scales. Substantial per-unit discounts are automatically applied to larger procurement volumes. Furthermore, we back every shipment with a comprehensive quality guarantee. In the rare event of a component non-conformity, our formalized Return Merchandise Authorization (RMA) process ensures rapid evaluation and immediate replacement, thoroughly protecting your procurement investment.
A: Our logistics infrastructure relies on a continuously monitored, real-time inventory system holding substantial buffer stock of the SN74LS153N. Standard allocations are processed and dispatched within 1 to 2 working days. For major production runs requiring hundreds of thousands of units, we guarantee a stable batch supply delivered within a 3 to 5-day window. We actively suggest compatible cross-reference components, such as the standard 74153, to further insulate your assembly lines from unexpected supply chain disruptions.
