74HC4059DB,112

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Logic counters, dividers and shift registers are some of the most commonly used devices in digital electronics. The 74HC4059DB,112 is a high-performance CMOS device used for these functions. It is specified for operation from 0°C to 70°C and is available in 8-pin DIP and SOIC packages.

The 74HC4059DB,112 contains four independent 4-bit binary up/down counter circuits with divide-by two, divide-by-four, and divide-by-eight options. It allows for the selection of either binary or decade mode, and can be cascaded for larger count applications. In addition, the counters can be reset by an external signal or triggered internally, as well as individually enabled and disabled.

The 74HC4059DB,112 also has two 4-bit bidirectional, universal shift registers (UARTS). The shift registers have an active low serial read, an active low serial write, an active high serial clock, clock enable and reset pins. In addition, they feature a low output enable pin and a clock pulse delay circuit that allows for synchronous operation.

The 74HC4059DB,112 can also be used as a PLL frequency synthesizer, providing frequency multiplication, division and phase shifting functions. The PLL circuit consists of two 4-bit counters, a programmable N-bit divider, a wide range frequency clock, and two digital oscillators. The counters provide the frequency division, while the divider provides the division of the oscillators to generate the output frequency. The programmable divider is also used to divide the reference frequency to generate the division ratio, which is used to generate the output frequency.

The 74HC4059DB,112 has many uses in digital electronics, including logic counters, dividers, and shift registers. Its wide range of features makes it useful for applications such as frequency division, frequency multiplication, and PLL frequency synthesizers. Its low power requirements and wide temperature range also make it a popular choice for many digitally-controllable devices.

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