CD4521BM96

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The CD4521BM96 is one of the most versatile logic devices offered by Texas Instruments. It is a dual asynchronous counter, consisting of two synchronous 4-bit counters in a single package. This logic device provides counting capabilities over two separate independent sets of inputs, as well as control of the direction of the individual counters. With this set of features, the CD4521BM96 can be used in a variety of applications, from frequency and pattern generation to pulse width modulation.

The CD4521BM96 has two independent 4-bit asynchronous counters with different programmable functions. Each counter consists of four D flip-flops with respective preset and clear inputs. In addition, the device has two sets of input signals, A and B, and a single output signal, O. The operating frequency of each counter is dependent on the external clock signal, CLK, applied to the device.

The working principle of the CD4521BM96 is simple and user-friendly. The device operates by counting the number of times the clock signal rises or falls. This signal is applied to the Clock input of each counter. The counting operation is controlled by the two sets of external signals, A and B. The A signal can be used to control the direction of the count (either up or down), while the B signal can be used to start or stop the counting operation. The output of each counter is connected to the flag output, O, which can be used to indicate the current count.

The CD4521BM96 is most often used in frequency generation or Divider applications, as it can be used to count or divide signals at rates up to 8 MHz. It is also commonly used in pulse width modulation (PWM) applications, where its ability to control the direction and speed of the counters makes it ideal for controlling the pulse width. Additionally, the device is also widely used in latch applications, such as in address switches, where it can be used to increment/decrement the address when a specific end-state is reached.

The CD4521BM96 is an ideal solution for a wide range of applications, from frequency and pulse width modulation to address decoding and generation. Its low cost and low power consumption make it the ideal choice for many logic systems. With its wide range of features and capabilities, the CD4521BM96 is a must-have for anyone looking for a versatile and reliable logic device.

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