SN74LS163ANG4

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The SN74LS163ANG4 is a programmable synchronous 4-bit binary counter, which belongs to the Logic - Counters, Dividers category. This counter has the ability to count up or down based on the logic state of the count input pin. It is composed of four master-slave flip-flops and an AND-orb circuit. It employs counter-flow logic, means that the count decay from the maximum value to zero. The SN74LS163ANG4 is fully compatible with TTL logic and its power consumption of 22mA is relatively low.

The SN74LS163ANG4 features two types of counting: synchronous (where all stages are changed simultaneously) and asynchronous (where the outputs of one stage are loaded into the next stage in a serial fashion). Its synchronous operation is enabled by two binary inputs, designated as count-up (CU) and count-down (CD). By changing the logic levels of these inputs, the counter will count up (when both CU and CD are at a low logic level), down (when both are at a high logic level) or remain in a constant state (when the CU and CD inputs are of opposite logic states). Additionally, this counter also has an active-low parallel load enabling input (called PL), as well as clock, reset and output-enable inputs.

The SN74LS163ANG4 is constructed with N-type metal-oxide-semiconductor (NMOS) technology, making it suitable for low-power applications. It is fully compatible with all popular logic families, including TTL, CMOS, ECL and NMOS, and supports up to 16-bit words for very large applications. The SN74LS163ANG4 has an operating temperature range of -55°C to 70°C, making it suitable for use in harsh conditions.

Due to its ability to count up and down, the SN74LS163ANG4 is an ideal choice for applications that require pre-scaling, frequency division, and accumulative counting. It is used in a variety of applications, such as timer circuits and encoder interface circuits. This counter is also widely used in serial communication systems, digital-signal processing, frequency counters and vibration monitoring.

In summary, the SN74LS163ANG4 is an extremely versatile counter and can be used in a wide variety of applications. It is very reliable and offers high levels of integration and operating temperature range. Furthermore, its low power consumption makes it an attractive choice for low-power applications.

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