CD4020BPWR

CD4020BPWR is an integrated circuit, from the Texas Instruments range of CMOS logic chips. It is a 14-stage ripple carry binary counter, with an active-low "Preset" input, making it in essence a sixteen-stage counter. It is especially useful for its ability to divide signals by powers of two, from 4096 to 2.

The heart of this IC is a series of cascaded binary counters. Each divided output is represented by Q0 to Q13 outputs respectively.

In this IC, there are two active-high enable inputs, EC and EPC which enable and disable the input clock, respectively. EC enables the conversion of the input clock signals to output by the counter. If EC = 0, then the counter will be disabled. EPC enables and disables the preset feature of the chip. When EPC = 0, the chip will be enabled and the counter will be reset to a predetermined count. If a logic 0 is applied to this pin, the counter will be reset to a logic 1.

In addition, there is an active-low “Preset” input which sets the counter to a particular count. When the Preset input is low, the counter will be reset to the count indicated by the preset inputs. This can be useful for dividing the frequency of a signal by a power of two.

The CD4020BPWR also has a “Clear” input which will reset the chip to its initial state. This input is also active-low and can be used to clear the register to zero when the count reaches the desired value.

In terms of application, this IC can be used in a wide range of logic circuits, from ring counters to frequency dividers and even as a counter for address decoding. As a frequency divider, this device can be used in a wide range of applications ranging from clock synthesis to control systems. By connecting the Preset and Clear inputs, a ringing clock circuit can be easily implemented without the need of additional circuitry.

Overall, the CD4020BPWR is a highly versatile integrated circuit from Texas Instruments, with a wide range of application. With its easy-to-use input and output pins, it can be used by a wide range of engineers and hobbyists to create complex logic functions with ease.