Differences between 8085 and 8086 microprocessor
In this section, we will see some basic differences between Intel 8085 MPU, and Intel 8086 MPU.
The 8085 is an 8-bit microprocessor. It was produced by Intel and first introduced in 1976. The 8086 is enhanced version of 8085 microprocessor. It is 16-bit processor. Now let us see some basic differences between these two.
Property
| 8085 Microprocessor
| 8086 Microprocessor
|
|---|
Data Bus Size
| 8-Bit
| 16-Bit
|
Address Bus Size
| 16-bit
| 20-bit
|
Clock Speed
| 3MHz
| Varies in range 5.8 – 10 MHz
|
Duty Cycle for clock
| 50%
| 33%
|
Flags
| It has 5 flags (Sign, Zero, Auxiliary Carry, Parity, Carry)
| It has 9 flags (Overflow, Direction, Interrupt. Trap, Sign, Zero, Auxiliary Carry, Parity, Carry)
|
Pipelining Support
| Does not support
| Supports
|
Memory Segmentation supports
| Does not support
| Supports
|
Number of transistors
| Nearly 6500
| Nearly 29000
|
Processor type
| Accumulator based
| General Purpose register based
|
Presence of Minimum and Maximum mode
| Not present
| Present
|
Number of processors
| Only one processor is used
| More than one processor is used. Additional processor (external) can also be employed
|
Memory Size
| 64KB
| 1MB
|
Instruction
| No multiplication and division instruction
| Multiplication and Division operations are present
|
Instruction Queue Support
| Does not support
| Supports
|
Published on 11-Mar-2019 13:01:52
