SN74LV163APWR

Timing:	Synchronous
Base Part Number:	74LV163
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply:	2V ~ 5.5V
Trigger Type:	Positive Edge
Count Rate:	90MHz
Series:	74LV
Reset:	Synchronous
Number of Bits per Element:	4
Number of Elements:	1
Direction:	Up
Logic Type:	Binary Counter
Part Status:	Active
Packaging:	Tape & Reel (TR)

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SN74LV163APWR is an advanced presettable synchronous UP/DOWN binary counter integrated circuit. It is continuously presettable counter offering parallel inputs for the BCD (Binary Coded Decimal) data, UP/DOWN control and asynchronous master reset with augmented features. This counter is based on the TTL technology and belongs to the family of logic ICs – counters, dividers.The SN74LV163APWR counter can provide a wide variety of UP/DOWN count operations. With the UP/DOWN select line of the counter, the application is given the freedom to select either UP or DOWN direction of the count. This counter can be preset to any desired number and can be incremented by either manual or automatic accesses, just by controlling the UP/DOWN control.The SN74LV163APWR logic IC is based on the TTL technology which provides robustness, high speed and high noise immunity on all its input pins. The output logic states effectively provide excellent capability of driving high fan-out loads and bus-oriented applications. The TTL technology also provides power to the IC during operation, which is usually provided using a standard 9V battery or similar source.The SN74LV163APWR counter has five inputs in total: BCD IN A, BCD IN B, BCD IN C and D, UP/DOWN line and the Enable line. The BCD IN lines provides the BCD data input to the counter. The UP/DOWN control line provides the application with the flexibility to select the UP or DOWN direction of the count. The enable line allows the IC to continue counting on the next cycle while the inputs remain in valid logic level states.The counter also has two output lines: the UP/DOWN count line which indicates the UP/DOWN count direction of the IC and the Q output which provides an asynchronous parallel output of the current count value. The UP/DOWN output line is an open collector output, meaning that it is not high or low but can only be high when the counter is counting in the UP direction or low when the counter is counting in the DOWN direction.The SN74LV163APWR counter has wide applications and is suitable for a variety of end systems such as counters, timers and event counters. It can also be used for count comparison and control, frequency division and multiplexing. The counter is especially useful in computing applications, where it can be used to count cycles, keep track of actions and events and store values.In terms of its working principle, the SN74LV163APWR counter works by taking the input BCD data as a reference number and incrementing or decrementing it in response to the UP/DOWN control line. When the control line is high then the counter will increment its output by one, and when the control line is low, the counter will decrement its output by one. This process will continue until the desired count is achieved.The SN74LV163APWR counter is a highly versatile and robust IC making it suitable for a wide range of applications. It provides both parallel and serial data inputs enabling the application to choose which mode is most suitable for its purpose. Furthermore, its highly flexible UP/DOWN count direction allows the application to choose the most suitable UP or DOWN count mode for its desired application. It is important to note that the SN74LV163APWR is applicable for both event and frequency counter applications.

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