74HC85D Datasheet, PDF
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74HC85D Alternate Parts
74HC85D Part Attribute
- Description The 74HC85; 74HCT85 is a 4-bit magnitude comparator that can be expanded to almost any length. They perform comparison of two 4-bit binary, BCD or other monotonic codes and present the three possible magnitude results at the outputs (QA>B,QA=BandQA<B). The 4-bit inputs are weighted (A0 to A3 and B0 to B3), where A3 and B3 are the most significant bits. For proper compare operation the expander inputs (IA>B,IA=BandIA<B) to the least significant position must be connected as follows: IA<B=IA>B=LOW andIA=B=HIGH. For words greater than 4-bits, units can be cascaded by connecting outputs QA>B, QA=B and QA<B to the corresponding inputs of the significant comparator. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
- Part No. 74HC85D
- Manufacturer 安世-Nexperia
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