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What is the start-up time of CLKOUT?

April 26, 2017clkout start-up time

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What is the start-up time of CLKOUT?

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The CLKOUT frequency is derived from the oscillator (XTAL1, XTAL2 pins). The start-up time for CLKOUT depends on the start-up time of the crystal oscillator. This has been measured to be typically below 2 ms. Since some microcontrollers (for example, the 8051 family) use synchronous reset, the reset circuitry has to be designed to be active for 2 ms to be reset properly.