From old datasheet system Up/Down Binary counter with Separate Up/Down Clocks; Package: SOIC; No of Pins: 16; Container: Tape & Reel F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY counter, PDSO16
High Speed CMOS Logic 12-Stage Binary counter 16-SO -55 to 125 High Speed CMOS Logic 12-Stage Binary counter 16-SOIC -55 to 125 SIPMOS power Transistor