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54LS85

Part Number	54LS85
Manufacturer	National Semiconductor
Description	4-Bit Magnitude Comparators
Published	Jul 4, 2014
Detailed Description	54LS85 DM54LS85 DM74LS85 4-Bit Magnitude Comparators June 1989 54LS85 DM54LS85 DM74LS85 4-Bit Magnitude Comparators Ge...
Datasheet	54LS85 PDF File

Overview

54LS85 DM54LS85 DM74LS85 4-Bit Magnitude Comparators June 1989 54LS85 DM54LS85 DM74LS85 4-Bit Magnitude Comparators General Description These 4-bit magnitude comparators perform comparison of straight binary or BCD codes Three fully-decoded decisions about two 4-bit words (A B) are made and are externally available at three outputs These devices are fully expandable to any number of bits without external gates Words of greater length may be compared by connecting comparators in cascade The A l B A k B and A e B outputs of a stage handling less-significant bits are connected to the corresponding inputs of the next stage handling more-significant bits The stage handling the least-significant bits must have a high-level voltage applied to the A e B input The cascading path is implemented with only a two-gate-level delay to reduce overall comparison times for long words Features Y Y Y Typical power dissipation 52 mW Typical delay (4-bit words) 24 ns Alternate Military Aerospace device ...

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