Figure 9-81 shows an 8 8 graphic LCD display grid controlled by a 74HC138 configured as

Question:

Figure 9-81 shows an 8 × 8 graphic LCD display grid controlled by a 74HC138 configured as a decoder, and a 74HC138 configured as a demultiplexer. Draw 48 cycles of the clock and the data input necessary to activate the pixels shown on the display.


Figure 9-81

+5 Pixels on ||| CLOCK O 3 Rows 4 10 1 2 5 6 7 www E3 E E Columns 0 1 2 3 4 5 6 7 0 1 2 3 74HC138 Ao A A 4 Qo

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Related Book For  book-img-for-question

Digital Systems Principles And Application

ISBN: 9780134220130

12th Edition

Authors: Ronald Tocci, Neal Widmer, Gregory Moss

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