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In $8085$ microprocessor, the digit $5$ indicates that the microprocessor needs

1. $-5$ volts, $+5$ volts supply
2. $+5$ volts supply only
3. $-5$ volts supply only
4. $5$ MHz clock

ANS 2

+5 volt only

The "5" in the part number highlighted the fact that the 8085 uses a single +5-volt (V) power supply by using depletion-mode transistors, rather than requiring the +5 V, −5 V and +12 V supplies needed by the 8080.

INTEL 8085: It is an 8 bit NMOS microprocessor.it is an forty pin IC(integrated circuit) package fabricated on a single LSI (Large scale Integration) chip.

It uses a single +5 volt d.c.(Direct Current) supply for its operation.It clock spee is 3 mhz.

It consists of 3 main sections. 1-Arithmetic Logic Unit(ALU) 2-Timing and control unit 3-Several Registers

OPTION 2

+5 volts supply only

In 8085 microprocessor, the digit 5 indicates that the microprocessor needs +5 volts supply only.
So, option (B) is correct.

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