Question
The 8051 microcontroller has __________ on-chip RAM and __________ on-chip ROM.
The correct answer is
128 bytes, 4 K bytes
8051 Microcontroller On-Chip Memory
The standard architecture of the 8051 microcontroller includes specific amounts of built-in RAM and ROM.
- On-Chip RAM: The 8051 features 128 bytes of internal Random Access Memory (RAM), used for data storage and the stack.
- On-Chip ROM: It also contains 4 K bytes (which is 4096 bytes) of internal Read-Only Memory (ROM), typically used for storing the program code.
Therefore, the 8051 microcontroller has 128 bytes on-chip RAM and 4 K bytes on-chip ROM.
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Important Questions from Microprocessors and Microcontrollers
Data and address bus width of 8085 microprocessor respectively are
The number of interrupts handled by 8051 microcontroller (other than Reset) is _____.
How many bits are used in the data bus of 8051 ?
16-bit registers consist of:
Arrange the following 8051 interrupts in increasing priority order.
A. Timer interrupt 0 (TF0)
B. Timer interrupt 1 (TF1)
C. External interrupt 0 (INT0)
D. External interrupt 1 (INT1)
Choose the correct answer from the options given below:
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