4018B types consist of 5 Johnson-Counter stages, buffered Q outputs form each stage, and counter preset control gating. CLOCK, RESET, DATA, PRESET ENABLE, and 5 individual JAM inputs are provided. The counter is advanced one count at the positive clock-signal transistion. Schmitt Trigger action on the clock line permits unlimited clock rise and fall times. A high RESET signal clears the counter to an all-zero condition. A high PRESET-ENABLE signal allows information on the JAM inputs to preset the counter. Anti-lock gating is provided to assure the proper counting sequence.
Medium speed operation
Fully static operation
Standardized, symmetrical output characteristics
5V, 10V, and 15V parametric ratings
Fixed and programmable counters greater than 10
Programmable decade counters
Divide-by-N counters/frequency synthesizers
16 pin DIP. Actual brand may vary from picture.