AN OVERVIEW OF MICROCONTROLLERS-51
These were microcontrollers developed by INTEL Corpration. The 1st device which was commercialy offered by Intel corporation was 8051. The main features of this microcontroller were
- 4 Kbyte o ROM
- 128 byte of RAM
- Four 8 bit input/output ports
- Two sixteen bit timers
- Serial interface
- 64K external code memory
- 64K external data memory
- Boolean processor
- 210 bit addressable locations
Here are some microcontrollers with specific features:
|
NO |
On chip code memory |
On chip data memory |
timer |
|
8051 |
4k ROM |
128 byte |
2 |
|
8031 |
0 k |
128 byte |
2 |
|
8751 |
4k EPROM |
128 byte |
2 |
|
8052 |
8K ROM |
256 byte |
3 |
|
8032 |
0K |
256 byte |
3 |
|
8752 |
8KEPROM |
256 byte |
3 |
For 8083,8032:
No on chip memory.Externally RAM and ROM are connected for programming purpose.
