74F191 Up/Down Binary Counter with Preset Ripple Clock
74F19107 Up/Down Binary Counter with Preset Ripple Clock
74F1912 From datasheet system
74F191CW Up/Down Binary Counter with Preset and Ripple Clock
74F191DC Synchronous Up/Down Counter
74F191DCQB Up/Down Binary Counter with Preset Ripple Clock
74F191DCX Up/Down Binary Counter with Preset Ripple Clock
74F191DMQB Up/Down Binary Counter with Preset Ripple Clock
74F191DMX Up/Down Binary Counter with Preset Ripple Clock
74F191FCQB Up/Down Binary Counter with Preset Ripple Clock
74F191FCX Up/Down Binary Counter with Preset Ripple Clock
74F191FMQB Up/Down Binary Counter with Preset Ripple Clock
74F191FMX Up/Down Binary Counter with Preset Ripple Clock
74F191LCQB Up/Down Binary Counter with Preset Ripple Clock
74F191LCX Up/Down Binary Counter with Preset Ripple Clock