CD4094BPW

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CD4094B is a special type of shift register which is brought out by Texas Instruments and is classified as a Logic - Shift Registers. The memory capacity of the device is 8-bit. It could supply high level of output current. This device is an edge-triggered register with 3-state output andit has 8 edge-triggered D-type flip-flops with complimentary outputs as well as common inputs. Its data entry operation is also made easy by having separate serial data inputs and a serial-data storage clock input.

In addition to DRQ and OE pins, the shift register also has two master reset and asynchronous clear inputs. The asynchronous clear provides a way to quickly reset the eight flip-flops and thereby the eight outputs. Master reset allows the manual reset through an active low pulse. After the pulse is finished, the device will enter the normal operation.

The main application field of CD4094B is consumer electronics, automotive electronics and industrial control systems. This shift register could be easily used in different types of digital systems where a sequential data transfer is required. It could be used to build an 8 bit shift register for counter applications, 8 bit parallel to serial conversion, 8 bit serial to parallel converter, 8 bit parallel load shift register and 8 bit bidirectional shift register, etc. With its access to 8 bit serial input and 8 bit parallel output, this shift register is a very effective device.

The working principle of the device is based on the serial data stored in it. It has a special input pin, Clock Input (CP), which is used to regulate the data stored in the shift register. A clock pulse given to this pin will make the data stored in the first flip-flop is shifted to the next flip-flop. This way, the data is sequentially shifted through the register. Each flip-flop will store the data during the active clock pulse.

The device has a special input pin called Data Input (D). It is used to enter the data into the corresponding flip-flop. When a high pulse is given in this pin, the data stored in the previous flip-flop is shifted to the next flip-flop and the new data is stored in the first flip-flop. The data is entered into the flip-flop as soon as the clock goes high. This is the way the data is transferred into the shift register.

In summary, CD4094B is a very useful logic - Shift Registers which has 8 bit memory capacity and its application include consumer electronics, automotive electronics and industrial control systems. It is used to store the serial data and to transfer it from one flip-flop to the other when the active clock pulse is given. It also has two inputs for master reset and asynchronous clear which can be used to reset the whole register quickly.

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