SN74LV163AD

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The SN74LV163AD is a high-count binary counter, manufactured by Texas Instruments. It is a dual-function logic device that provides both a synchronous, power-on reset and a count input on the same chip. The SN74LV163AD is available in various die sizes, ranging from 0.5" to 1.25" and offers three types of supply-voltage thresholds: standard, intermediate, and low.

The SN74LV163AD is designed for applications that require a large-count binary counter, such as industrial automation, automotive control systems, robotics, communications systems, and data acquisition. The device is configured as two 8-bit synchronous up/down binary counters with independently programmable clocks and master reset inputs. It is capable of counting up to 28-bits, which is 256 times the maximum count of a single counter.

The SN74LV163AD operates with a voltage supply of between 2.3V and 5V. It has an operating temperature range of -40°C to +85°C and is immune to latchup. It is also RoHS-compliant and offers several protection mechanisms including ESD, overcurrent, and overvoltage protection. It is capable of working at a maximum frequency of 13 MHz.

The SN74LV163AD consists of two 8-bit synchronous up/down binary counters. Each counter consists of an asynchronous reset and count input as well as a selectable clear input. The counters can be cascaded with each other to form a large-count binary counter. The device also has two types of synchronous operations: pre-and post-load operations which allow for the simultaneous multi-counter control.

The SN74LV163AD features an integrated power-on reset circuit that provides the ability to reset all counters to zero on power-up. This reset is triggered when the power-on reset pin is asserted, and resets all counters to zero. The device also offers an adjustable pre-load counter value, which can be set by loading a preset value into the corresponding counter.

In addition, the SN74LV163AD includes a count-enable input that enables the user to disable the device while allowing power to be kept on. This is useful in applications where it is necessary to maintain the count values while temporarily disabling the counting functions.

The SN74LV163AD is an ideal choice for applications requiring a fast and reliable counter with features like reset, pre- and post-count, and adjustable pre-load capability. It is also suitable for applications requiring a large-count counter of up to 28-bits with a maximum frequency of 13 MHz.

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