Question
Download Solution PDFIn 8085 MPU to operate a system at 3 MHz, the crystal connected to pins X1 and X2 should have a frequency of _____.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFIn the 8085 microprocessor, the internal operating frequency (system clock) is half of the external crystal frequency. This is because the 8085 divides the crystal frequency by 2 internally to generate its clock signal.
Given the system operates at 3 MHz:
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Crystal frequency = 2 × Internal frequency
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Crystal frequency = 2 × 3 MHz = 6 MHz
Thus, the crystal connected to pins X1 and X2 must be 6 MHz.
Last updated on Jul 2, 2025
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