INTRODUCTION TO MICROPEOCESSOR
MODEL OF MICROPROCESSOR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The number of TTL inputs that can be sinked by the port 0 when a logic 0 is sent to a port line as an output port is
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2
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4
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6
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8
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Explanation:
Detailed explanation-1: -Explanation: When a logic 0 is sent to a port line as an output port, it can sink 8 LS TTL inputs.
Detailed explanation-2: -8051 microcontroller is designed by Intel in 1981. It is an 8-bit microcontroller. It is built with 40 pins DIP (dual inline package), 4kb of ROM storage and 128 bytes of RAM storage, 2 16-bit timers. It consists of are four parallel 8-bit ports, which are programmable as well as addressable as per the requirement.
Detailed explanation-3: -It is used for both address and data. When connecting an 8051/31 to an external memory, port 0 provides both address and data. Port 1 is used as input and output. Upon reset, port 1 is configured as an input port.
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