CD4585B - 4-Bit Magnitude Comparator, 16-PDIP

CD4585B - 4-Bit Magnitude Comparator, 16-PDIP, Texas Instruments

CD4585B is a 4-bit magnitude comparator designed for use in computer and logic applications that require the comparison of two 4-bit words. This logic circuit determines whether one 4-bit word (Binary or BCD) is "less than", "equal to", or "greater than" a second 4-bit word.

The CD4585B has eight comparing inputs (A3, B3, through A0, B0), three outputs (A<B,A = B,A>B) and three cascading inputs (A<B,A=B,A>B) that permit systems designers to expand the comparator function to 8, 12, 16.....4N bits. When a single CD4585B is used, the cascading inputs are connected as follows: (A<B) = low, (A=B) = high, (A>B) = high.

Technical Datasheet (506 KB) 

Features

• Expansion to 8, 12, 16.....4N bits by cascading units
• Medium-speed operation:
• compares two 4-bit words in 180 ns (typ.) at 10 V
• 100% tested for quiescent current at 20 V
• Standardized symmetrical output characteristics
• 5-V, 10-V, and 15-V parametric ratings
• Maximum input current of 1 µA at 18 V over full package temperature range; 100 nA at 18 V and 25°C

Application Includes Servo Motor Control and Process Controllers.

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