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Product Detailed Parameters
- Description：MULTIPLEXER BIPOLAR 3-ST 8-IN 16
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Type：-
- Circuit：-
- Independent Circuits：-
- Current - Output High, Low：-
- Voltage Supply Source：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The SN74AS253ANS is a high-speed AS-series logic multiplexer manufactured by Texas Instruments. It integrates two independent 4-to-1 data selectors within a single 16-pin Small Outline (SOIC) package. The device operates on a single power supply ranging from 4.5 V to 5.5 V and supports surface-mount installation. It features three-state outputs for bus-oriented applications, ensuring reliable signal routing in digital systems.
Feature Summary
- Integrates dual 4-to-1 multiplexing circuits for efficient data selection
- Provides three-state outputs to facilitate bus-driven architectures
- Utilizes advanced Schottky technology for high-speed switching performance
Applications
- Bus-oriented memory addressing systems
- High-speed data routing networks
- Digital signal processing input selection
Procurement Notes
Verify the specific suffix 'ANS' against the manufacturer's official documentation to confirm the SOIC-16 package type and tape-and-reel or tube packaging configuration. Ensure compatibility with standard 5V logic levels and check for RoHS compliance status in the latest datasheet before finalizing procurement specifications.
Selection Notes
Select this component when dual independent 4-to-1 multiplexing is required in a compact surface-mount footprint. The AS series offers superior speed compared to standard TTL variants. Confirm that the system voltage remains within the 4.5 V to 5.5 V range and that the load capacitance requirements align with the device's driving capabilities.
Part Context
This part belongs to the Texas Instruments SN74AS family of advanced Schottky logic devices. These components are designed for high-speed digital applications requiring low propagation delay. The SN74AS253 specifically addresses needs for multi-channel data selection in complex digital circuits, serving as a critical interface between data sources and processing units.
Replacement Considerations
Compatible substitutes include the SN74AS253D (same function, different package variant) and the SN74ALS253 (lower power consumption, slightly slower speed). Verify pinout compatibility and electrical characteristics before substituting.
