CD4018BE .

产品概述

The CD4018BE is a CMOS Pre-settable divide-by-N Counter consists of 5 Johnson-counter stages, buffered Q outputs from each stage and counter pre-set control gating. CLOCK, RESET, DATA, PRESET ENABLE and 5 individual JAM inputs are provided. Divide by 10, 8, 6, 4 or 2 counter configurations can be implemented by feeding the Q5, Q4, Q3, Q2, Q1 signals respectively, back to the DATA input. Divide-by functions greater than 10 can be achieved by use of multiple CD4018B units. The counter is advanced one count at the positive clock-signal transition. 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 pre-set the counter. Anti-lock gating is provided to assure the proper counting sequence.

• Fully static operation
• 100% Tested for quiescent current at 20V
• Standardized, symmetrical output characteristics
• Meets all requirements of JEDEC tentative standard #13B

应用

时钟与计时, 工业