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Product Detailed Parameters
- Description：IC COMPARATOR MAGNITUDE 16SO
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Type：-
- Number of Bits：-
- Output：-
- Output Function：-
- Voltage - Supply：-
- Current - Output High, Low：-
- Max Propagation Delay @ V, Max CL：-
- Current - Quiescent (Iq)：-
- Operating Temperature：-
- Package / Case：-
- Supplier Device Package：-
- Mounting Type：-
- Grade：-
- Qualification：-
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Overview
The SN74LS85NS is a 4-bit binary or BCD magnitude comparator manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and features active high outputs for A < B, A = B, and A > B comparisons. The device utilizes Schmitt-trigger inputs and push-pull outputs, with propagation delays specified at 24 ns and 27 ns. It is housed in a 16-pin SOIC package and supports through-hole mounting.
Feature Summary
- Performs 4-bit binary or BCD magnitude comparison
- Features active high outputs for inequality and equality states
- Utilizes Schmitt-trigger inputs for noise immunity
Applications
- Digital arithmetic logic units
- Data routing systems
- Error detection circuits
Procurement Notes
Verify the 'NS' suffix indicates the SOIC-16 package variant distinct from the PDIP-16 version. Confirm RoHS compliance status and temperature range specifications against the official datasheet before procurement. Ensure pinout compatibility with existing PCB layouts designed for surface-mount integration.
Selection Notes
Select this component when a 4-bit magnitude comparison function is required in a surface-mount design. The LS logic family offers a balance of speed and power consumption suitable for general-purpose digital applications. Verify that the operating voltage remains within the 4.75 V to 5.25 V range for reliable operation.
Part Context
This part belongs to the Texas Instruments 74LS series of logic comparators. It provides magnitude comparison capabilities for digital systems. The SN74LS85NS specifically denotes the small-outline integrated circuit package version, differing from the plastic dual-inline package variant in physical form factor while maintaining identical logical functionality.
Replacement Considerations
The SN74LS85N serves as a direct functional equivalent but utilizes a PDIP-16 package. For ceramic DIP variants, consider the SN74L85J. Verify package dimensions and pin spacing compatibility during substitution to ensure proper board fit.
