The 8051 Microcontroller is packaged in a _____ pin DIP.

Question

Question

This question was previously asked in

RRB JE CBT 2 (Electronics Engineering) ReExam Official Paper (Held On: 04 Jun, 2025)

Answer 1

The correct answer is option 3

Concept:

8051 is an 8-bit (data bus) 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. The rest must be accessed in byte format.
Additional Information

The Block Diagram of an 8051 microcontroller is as shown:

In an 8051 microcontroller,
Internal RAM (data memory) - 128 bytes
Internal memory (code memory) - 4 kB (ROM)
Timer/counter - 2
No. of interrupt - 5
I/O pins - 32
Serial port - 1