MC14490FG

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The MC14490FG is a type of counter-timer system elements manufactured by Motorola. This integrated circuit is a versatile device that includes the functionality of five separate timers and counters. The MC14490FG is primarily used in automotive and other automotive related applications.

This device is primarily employed as a safety timer and has the ability to provide simple but accurate timing operations. It has the capability to count up and down, measure pulses and generate repetitive pulses for different actions. It is designed to operate over a wide temperature range of -40°C to 85°C and consumes a very low current of just 6 to 20 mA. It is designed for applications such as automotive security, body control, user interface systems, industrial control, digital instrumentation and many others.

This device contains seven terminals and has the ability to generate and count up to 8 distinct signals. It includes a clock input, reset input, enable input, count output and 6 decimal addressing outputs. The clock input is used to enable the MC14490FG and begins the timer or counting operation as soon as it is enabled. The reset input is used to reset the internal counters, while the enable input is used to activate the timer or counter depending on the mode selected. The count output is used to generate a pulse whenever the MC14490FG has reached the maximum or minimum value, or has completed the set count.

The MC14490FG counter-timer device can be used to count pulses or as a delay timer for user-defined periods. It can also be used to generate repetitive pulses for every period. The device contains an oscillator and a number of counters. The oscillator generates a square wave output at a frequency determined by the user. The counters are then used to count the number of pulses generated by the oscillator. Depending on the mode selected, the counters can be used to count up, count down, or to generate a pulse output for a period of time.

The MC14490FG is designed for use in applications where a high degree of accuracy is required. It utilizes a high-precision Quartz crystal and operates at a frequency of 25 KHz or lower. This ensures accuracy within 5ms of the set time. This makes it ideal for automotive applications where accuracy is essential. The device also has a wide temperature range and consumes very low power, making it suitable for long-term use in harsh environments.

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