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Microprocessor

Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 320ns
 1280ns
 960ns
 640ns

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Microprocessor
A real number consists of

Integer part and fraction part
Integer part
None of these
Integer part, fraction part along with positive or negative sign

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Microprocessor
The data lines of 8085 microprocessor are multiplexed with

None of these
 status lines
 higher order address lines
 lower order address lines

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Microprocessor
‘Burst refresh’ in DRAM is also called

None of these
Distributed refresh
Concentrated refresh
Hidden refresh

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Microprocessor
Maximum number of I/O that can be addressed by the INTEL 8085 is

 512
 285
 65536
 256

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Microprocessor
Identify the communication interfacing device from the following

 8257
 8255
 8155
 8251

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