XBLW SN74LS85N(XBLW)

The SN74LS85 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 = B and QA < 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 = B and IA < B) to the least significant position must be connected as follows: IA < B = IA > B = LOW and IA = 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.

• Wide supply voltage range from 2.0 to 6.0V
• CMOS low power dissipation
• CMOS Input levels
• Specified from -20℃ to +85℃
• Packaging information: DIP16/SOP16/TSSOP16

• Process controllers
• Servo-motor control