74HCT161PW,112

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The 74HCT161PW,112 is a 4-bit synchronous BCD counter chip with presettable counter which is widely used in a variety of applications. This chip is from the Logic - Counters, Dividers family of chips.

The 74HCT161PW,112 has the following features:

• Wide operating voltage range: 2V to 6V.
• High speed operation: it can operate up to a maximum of 65MHz.
• Inputs and outputs are compatible with both TTL and CMOS levels.
• Four-bit synchronous counters that can count from 0 to 9 in binary coded decimal.
• Counter can be preset to any value prior to the start of counting.
• Output enable pin ensures the low power operation.
• Enable/disable input to inhibit counting when not required.

The 74HCT161PW,112 is widely used in various applications as a counter, such as in timers/delays, voltage sensors, closed loop feedback systems, computer operating systems, PLCs, etc. It can also be used as shift register.

The working principle of the 74HCT161PW,112 is quite simple. It consists of four internal flip-flops and an output enable pin. These flip-flops change their state from low to high upon each input clock pulse and thereby counting from 0-9 in binary coded decimal. The counter can be reset with the help of reset pin. The output enable pin is used to enable or disable the outputs of the counter. The enable input is used to start/stop the counter. When the enable input is in high state, the counter starts counting.

The 74HCT161PW,112 is widely used as it provides high speed counting and its wide operating voltage range makes it suitable for different applications. It has also become popular for its ease of use and low power consumption.

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