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Product Detailed Parameters
- Description：IC DRIVER NOR HEX 2-INP
- Series：74HC
- Mfr：Rochester Electronics, LLC
- Package：Bulk
- Logic Type：-
- Number of Circuits：-
- Number of Inputs：-
- Features：-
- Voltage - Supply：-
- Current - Quiescent (Max)：-
- Current - Output High, Low：-
- Input Logic Level - Low：-
- Input Logic Level - High：-
- Max Propagation Delay @ V, Max CL：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Grade：-
- Qualification：-
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Overview
The DM74AS158N is a multiplexer from the AS Series, featuring four functions with two-line inputs and one-line output. It provides inverted outputs and operates within TTL logic standards. The component is housed in a PDIP-16 package, measuring 0.300 inches in width. It supports a maximum operating temperature of 70 °C and contains 16 pins. The device is lead-free and RoHS compliant.
Feature Summary
- Provides four independent multiplexing functions
- Features inverted output capability
- Compatible with TTL logic families
Applications
- Data routing in digital systems
- Signal selection circuits
- Logic interface modules
Procurement Notes
Verify the specific manufacturer origin, as Rochester Electronics sources components from original manufacturers. Confirm package integrity and pin configuration match the PDIP-16 specification. Ensure compliance with environmental regulations such as RoHS if required for your assembly process. Check datasheet revisions for any updates to electrical characteristics or mechanical dimensions before finalizing procurement.
Selection Notes
Select this component when a quad 2-to-1 multiplexer with inverted outputs is required. It is suitable for applications needing TTL compatibility and moderate speed performance characteristic of the AS series. Consider the PDIP-16 package for through-hole mounting requirements. Evaluate thermal constraints against the 70 °C maximum operating temperature limit.
Part Context
Rochester Electronics specializes in sustaining legacy semiconductor products that are no longer actively produced by original manufacturers. This part belongs to the 74AS logic family, known for advanced Schottky technology. The company maintains inventory and manufacturing capabilities for obsolete parts, ensuring supply continuity for long-life industrial and military applications.
Replacement Considerations
Check for direct equivalents from other manufacturers in the 74AS series. Verify pinout compatibility and logical function equivalence. Ensure voltage levels and package dimensions match the existing design constraints.
