A divide-by-4 or two-bit binary counter can also be built using two flip-flops of the 4027 type as shown in Figure show. It is also possible to extend the division by 8, 16, 32, 64, etc., using more flip-f1ops Iike those found in the 4027 (DuaI J-K Master/Slave FIip-Flop with Set and Reset). The maximum counting frequency is 12.5 MHz when the circuit is powered with 10 V.
Cascading the 4027
