onsemi MC14029B
The MC14029B Binary/Decade up/down counter is constructed with MOS P−channel and N−channel enhancement mode devices in a single monolithic structure. The counter consists of type D flip−flop stages with a gating structure to provide toggle flip−flop capability. The counter can be used in either Binary or BCD operation.FEATURES
● Diode Protection on All Inputs● Supply Voltage Range = 3.0 Vdc to 18 Vdc
● Internally Synchronous for High Speed
● Logic Edge−Clocked Design − Count Occurs on Positive Going Edge of Clock
● Asynchronous Preset Enable Operation
● Capable of Driving Two Low−Power TTL Loads or One Low−Power Schottky TTL Load Over the Rated Tem