Features of 8051 microcontroller

Some of the  important Features of 8051 microcontroller

•     It is an 8 bit ALU.
•     16 bit PC and DPTR.
•     8 bit stack pointer and 8 bit PSW.
•     4K internal ROM
•     128 bytes of Internal RAM.
•     32 bits arranged as four,8 bit ports P0-P3.
•     Two 16 bit timer/counters, T0 & T1.
•     Full duplex serial Port.
•     Control Registers
•     TCON,TMOD,SCON,PCON,IP,IE etc (SFR’s).
•     Two External and three internal interrupt
•     0-12 MHz clock.
•     40 pin DIP package.
•     Works in Power Down and Idle mode.
•     Powerful Instruction set.
•     8bit data bus:-it can access 8bit of data in one operation
•     8bit accumulator, 8bit Register and 8bit ALU.