74F162APC

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The 74F162APC is a Synchronous presettable 4-Bit Binary Counter with Synchronous Clear. This counter consists of four synchronous, presettable, binary counters. All four counters are cleared simultaneously by pulsing the master reset. All four counters count up on each pulse to their maximum count of "1111", and then reset on the next clock pulse. All buffered outputs are inhibited while the counter is in reset. The counter is clocked on the rising edge of the clock pulse. The CBR pin controls the resetting of the counter. When CBR is HIGH the counter will reset to the preset value. When CBR is low, FFs will behave as transparent latches.

The 74F162APC is an ideal solution for applications where timer/counter operations are needed. It is also used in digital systems that require resetting and counting. Applications include up/down counters, time delay generation, address generation, pulse width modulation, binary coded decimal (BCD) counters and more.

The working principle of the 74F162APC is quite simple. An oscillating signal is fed into the master reset pin, which is logically combined with the CBR pin by an AND gate to generate the reset control signal. This signal is then used to control the up/down operation of the counter. When the counter is counting up, the CBR pin is HIGH, and when the counter is counting down, the CBR pin goes LOW. Each counter is independently clocked and reset. The CBR pin allows the counter to reset to a pre-defined value.

The 74F162APC is designed to operate from a single +5V power supply. Each I/O line meets the voltage and I/O current requirements of both TTL and MOS devices. The three-state buffered outputs allow the user to control four sets of outputs. Each output is TTL compatible, no external pull-up or pull-down resistors are required even if the outputs are wired over long distance.

In conclusion, the 74F162APC, a four-bit synchronous presettable binary counter with synchronous clear, is an ideal solution for applications requiring counter/timer operations. With its simplicity and low power consumption, it is the perfect choice for designers looking for an inexpensive and energy efficient counter. The buffer outputs of the counter allow the user to control four sets of outputs without the need for external pull-up or pull-down resistors and the CBR pin permits resetting the counter to predetermined values. Adhering to the TTL and MOS data bus standards, the 74F162APC is an economical, reliable, and easy to use counter that is the ideal choice for a wide range of applications.

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