MICROPROCESSOR AND MICROCONTROLLER

INTRODUCTION TO MICROPEOCESSOR

MICRO PROCESSOR AND MICRO CONTROLLER

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

. How many bytes of bit addressable memory is present in 8051 based microcontrollers?

A	8 BYTES
B	16BYTES
C	32 BYTES
D	64BYTES

Explanation:

Detailed explanation-1: -8051 is an 8-bit microcontroller built with 40 pins DIP (dual inline package). 8051 has internal RAM (128 Bytes) and ROM (4K Bytes). Of the 128-byte internal RAM, only 16 bytes are a bit-addressable.

Detailed explanation-2: -Explanation: 8051 microcontrollers have 16 bytes of bit addressable memory.

Detailed explanation-3: -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-4: -Internal RAM of 8051 Microcontroller The address range is 00H to 1FH. These 32-bytes of spaces are again divided into four register banks. The second part is 16-bytes of bit addressable registers. It ranges from 20H to 2FH.

There is 1 question to complete.