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How many character keyboards can be connected with 8279 in mode? |
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Answer» Explanation: The internal CLOCK frequency of the 8279 is nominally 100 kHz. An internal prescaler divides an externally applied clock by an INTEGER between 2 and 31 (both inclusive) to PRODUCE the internal clock. The RESET signal sets the 8279 in 16-character display with two -key lockout keyboard modes. |
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