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you are freering to the internal clock speed and the external clock speed corect? ECLK or ECLKNOT are external clocks to the microprocessor. they do not run it. they are for the microprocessors supporting hardware. the internal frequency is what the processor actually uses. the ECLK is divided by two( a 6MHZ cycle take half as long a 3MHZ, right). the reason external (E) clocks run twice as fas as a processor is because there is not much data that can be processed in one cycle. it also allows the supporting architecture to access the data twice as it is processed. think about accessing a memory slot, it would use one ECLK cycle to locate the slot and one ECLK cycle to right the data to the processor. reading memory is a very simple task, but it still take two cycles. if the ECLK didnt run at twice the speed of the internal clock, the processor would be idle half of the time. actually there is a frequency devider circuit using 555 timer which devides the crystal frequency by 2......and the microprocessor components function proper at 3.14 Mhz.

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Q: Why the clock frequency of 8085 is 3.14 MHz?
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What will happen if crystal frequency of 8085 is increased from 5 to 20 MHz?

Since the 8085 has a maximum clock frequency of 6 MHz, increasing the crystal frequency from 5 MHz to 20 MHz, a corresponding clock frequency change of 2.5 MHz to 10 MHz, the chip would malfunction.

What is the clock speed of 8085 mp?

The clock speed of the 8085 depends on the particular chip chosen. The basic 8085 could run up to around 3 MHz. The -1 version could run up to around 6 MHz. The -2 version could run up to around 5 MHz. In each case, the crystal frequency had to be exactly twice the desired clock frequency, i.e. 6 Mhz, 12 MHz, and 10 MHz, respectively. In all cases, the minimum clock frequency was 500 KHz. (Crystal 1 MHz)

What is operating frequency of microprocessor?

The operating frequency of 8085 is 3 mhz to 5 mhz

What is the crystal frequency required for an 8085 system to operate at 101 MHz?

There is no 8085 that operates at 101 MHz. The fastest 8085 operates at 12 MHz, requiring a 24 MHz crystal.

Specify the crystal frequency required for an 8085 system to operate at 1.1mhz?

The crystal frquency in an 8085 system is twice the desired clock frequency, so a crystal of 2.2 MHz is required to operate at 1.1 MHz.Note: Clock frequency is not the same as instructions per second, because the instructions in an 8085 take a variable number of clock cycles, between 4 and 18, to execute.

What is the operating frequency of 8085 microprocessor?

From the Wikipedia article, it looks like they would operate at 3, 5, or 6 megahertz (MHz), or maybe it's 3.5 MHz and 6 MHz (they use 3,5 - not sure if that's a European decimal point or a comma)

Why clock frequency of 6.14 mhz is used in 8085 microprocessor?

Because it is the top operating speed for that IC

In 8085A microprocessor What is the meaning of A here?

Maximal clock speed. 8085: ? 8085A: 3 MHz 8085AH: 5 MHZ

What is the speed of 8086 microprocessor?

MAximum clock frequency of 8086 is 5MHZ.

What is the speed in terms of Mhz of a clock period of 1 ns?

A clock with a period of 1 ns has a frequency of 1 GHz, or 1000 MHz.

Why you connect 6.28MHz crystal oscillator in 8085microprocessor instead of 3.14MHz crystal oscillator?

Internally two crystal oscillator cycles are used as one single cycle. During one single crystal cycle it is made to logic high and logic low in next cycle so, that 50% duty cycle is maintained.

If clock frequency is 5 MHz how much time is required to execute an instruction of 18 T states?

At a clock frequency of 5 MHz (10 MHz crystal) the 8085 has a clock period of 200 ns. An instruction using 18 cycles would use 3.6 us. (Microseconds)This is for the case with no wait states. Each wait state adds 200 ns. Since an 18 cycle instruction has 5 memory accesses, one wait state per access would add 1 us to the execution time.