Binary/Decade Up/Down Counter

TheMC14029B Binary/Decade up/down counter isconstructed with MOS P–channeland N–channel enhancement mode devices in a single monolithicstructure. The counter consists of type D flip–flop stages with a gatingstructure to provide toggle flip–flop capability. The counter can be

usedin either Binaryor BCD operation. This complementary MOS counter findsprimary use in up/down and difference counting and frequency synthesizerapplications where low power dissipationand/or high noise immunityis desired. It is also useful in A/D and D/A conversion and for magnitude and sign generation.



• 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 Temperature Range

• Pin for Pin Replacement for CD4029B