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Product Detailed Parameters
- Description：MOS GENERAL PURP LOG
- Series：74HC
- Mfr：Texas Instruments
- Package：Bulk
- Type：Multiplexer
- Circuit：4 x 2:1
- Independent Circuits：1
- Current - Output High, Low：7.8mA, 7.8mA
- Voltage Supply Source：Single Supply
- Voltage - Supply：2V ~ 6V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.209", 5.30mm Width)
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
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Overview
The SN74HC158ANSR is a high-speed CMOS quad 2-input multiplexer manufactured by Texas Instruments. It features four independent data selectors, each capable of routing one of two inputs to a single output based on select lines. The device operates within a supply voltage range of 2 V to 6 V and supports loads up to 15 LSTTL equivalents. Key electrical parameters include a typical propagation delay of 11 ns and maximum quiescent current of 80 μA. It is housed in a 16-pin SOIC package with surface mount installation.
Feature Summary
- Provides four independent 2-to-1 data selection paths for signal routing
- Compatible with standard TTL logic levels due to LSTTL load driving capability
- Operates across a wide voltage range from 2 V to 6 V for flexible power integration
Applications
- Data routing in digital communication systems
- Signal selection in microcontroller peripheral interfaces
- Address decoding and bus switching applications
Procurement Notes
Verify the specific suffix 'ANSR' corresponds to the SOIC-16 package and tape-and-reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation or certified distributor declarations prior to procurement. Ensure the ordering part number matches the exact functional specification required for the design.
Selection Notes
Select this component when multiple low-speed data sources require centralized routing to a single destination. The HC series offers lower power consumption compared to older logic families while maintaining compatibility with standard logic thresholds. Consider the 11 ns propagation delay for timing-critical paths and verify that the 2 V to 6 V operating range aligns with the system power supply constraints.
Part Context
This part belongs to the Texas Instruments SN74HC158 family of multiplexers. The 'A' variant typically denotes improved specifications or manufacturing revisions within the HC logic line. The 'SR' suffix indicates the reel packaging format suitable for automated surface-mount assembly processes.
FAQ
What is the maximum fan-out capability of the SN74HC158ANSR?
The outputs can drive up to 15 LSTTL loads.
Does the SN74HC158ANSR have active-low outputs?
No, the SN74HC158 provides non-inverted (active-high) outputs for the selected input data.
