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Clock/Timing - Programmable Timers and Oscillators

8N3SV76BC-0033CDI is a programmable timer and oscillator from National Semiconductor. It is intended for use in timing and frequency control applications, ranging from general-purpose timing to highly advanced industrial, automotive, and communications. It is an integrated circuit that combines a programmable counter/timer, D-type flip-flop, mux, and oscillator and provides programmable accuracy and resolution.

The application field of 8N3SV76BC-0033CDI covers various fields such as industrial, medical, automotive, communications, and instrumentation. Industrial applications of the device include HVAC control, motor speed control, motion and positioning control, embedded systems control, and data acquisition, as well as robotic control, automatic test equipment, and aerospace. In medical applications, the device is used for controlling anaesthesia, glucose meters, ventilation control, and infusion pumps.

Working Principle

The 8N3SV76BC-0033CDI integrates programmable counter/timer, D-type flip-flop, multiplexers, and oscillator. The counter/timer can be configured to divide, integrate and perform various math functions. It has four programmable count lengths and various clock polynomials which enable it to achieve maximum accuracy and resolution. The combination of the programmable counter/timer and the D-type flip-flop implements a basic counter/timer function, useful for applications such as ON/OFF timing and alarm systems.

The multiplexers of 8N3SV76BC-0033CDI allow for the programming of up to four timing channels. Each of the four timing channels can be programmed with multiple programs, thereby allowing for the implementation of a complicated application control. The oscillator allows for the generation of a wide range of frequencies in the range of 1 kHz to 20 MHz. It also has a programmable duty cycle, which enables the user to select from a variety of duty cycles that range from 0% to 99%.

8N3SV76BC-0033CDI is an ideal programmable timer and oscillator, suitable for various applications in industrial, medical, automotive, communications, and instrumentation. It is easy to use, thanks to its integrated mux, high accuracy, and wide range of frequencies. The combination of the programmable counter/timer and the D-type flip-flop make it useful for both general-purpose and highly advanced tasks.

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