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Clocked R-S Flip Flop

Clocked R-S Flip Flop. D flip flop: List R-S but it ensures that inputs aren’t incompatible Stores whatever Data is on “D”. T or Toggle flip flop Input to T State changes on clock pulse. Buffer or shift register Stores 4 bits of data Combine flip flops to get a shift register

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Clocked R-S Flip Flop

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  1. Clocked R-S Flip Flop

  2. D flip flop: • List R-S but it ensures that inputs aren’t incompatible • Stores whatever Data is on “D”

  3. T or Toggle flip flop • Input to T • State changes on clock pulse

  4. Buffer or shift register • Stores 4 bits of data • Combine flip flops to get a shift register • Data moves down the line on each clock • Or a counter:

  5. An actual data sheet • Operating parameters • Power • Voltage • Different packages • DIP = dual inline pin • Surface mount is too small

  6. Octal Decoder • Input binary • Selects an octal output

  7. This is how it looks in block diagram

  8. Data selector • 4 bit binary address selects which data line transmits to output

  9. 7 segment display driver • For homework • Input is BCD • Output creates the correct combination of LED elements to form the digit

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