SN74ALS193ANSR

Timing:	Synchronous
Base Part Number:	74ALS193
Supplier Device Package:	16-SO
Package / Case:	16-SOIC (0.209", 5.30mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply:	4.5V ~ 5.5V
Trigger Type:	Positive Edge
Count Rate:	30MHz
Series:	74ALS
Reset:	Asynchronous
Number of Bits per Element:	4
Number of Elements:	1
Direction:	Up, Down
Logic Type:	Binary Counter
Part Status:	Discontinued at Digi-Key
Packaging:	Tape & Reel (TR)

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Introduction to SN74ALS193ANSR

The SN74ALS193ANSR is a 4-bit binary synchronous up/down counter from Texas Instruments, featuring asynchronous load and reset, synchronous up/down count, and programmable clock description. The SN74ALS193ANSR is available in both 16-pin DIP and 20-pin SOIC packages, safety rated to ensure that the device will properly execute and store its contents even in the most extreme conditions.

Application Field and Working Principle of SN74ALS193ANSR

The SN74ALS193ANSR belongs to the logic - counters, dividers category of Texas Instruments products. This type of product is designed to be used in variety of applications where asynchronous counting and regulating of output data is required. The SN74ALS193ANSR can be used in microcontroller-based applications such as clock and timing circuits, data processing systems and switches.The SN74ALS193ANSR has several input and output terminals that allow external control and measurement of various system states. The input terminals include a UP/DOWN control, a CLOCK input, and a LOAD terminal. The CLOCK input provides an input synchronizing signal from an external clock source. The UP/DOWN control is used to select the mode of counting, either up or down. When the LOAD terminal is activated, the counter will load the present state of the UP/DOWN control to the count register, changing the output state accordingly.The SN74ALS193ANSR also has four output terminals, which provide the present state of the count register. Output A is the least significant bit (LSB) and output D is the most significant bit (MSB). These output signals are in binary form, with each output corresponding to a two power of the current count output. For example, when the counter is at its maximum output (15 in decimal form), output A will be low while output D will be high.Finally, the SN74ALS193ANSR has an asynchronous reset terminal. This terminal allows the count output to be reset back to zero after a specified period of time. This is extremely useful for count-down applications, such as multivibrators and pulse generators.In summary, the SN74ALS193ANSR is a versatile counter capable of counting up or down in response to an external clock signal. It can be used in variety of applications as a means to accurately regulate output data. Furthermore, it has built in safety features to protect the contents of the count register in extreme conditions.

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