Features of 8085 - Microprocessor

Features of 8085

1. 8-bit microprocessor i.e. accepts 8-bit data  simultaneously
2. Single-chip N-MOS device implemented with 6500 transistors
3. Require single +5V power supply
4. Clock frequency in the range of 3MHz-5MHz
5. 8-bit data bus and 16-bit address bus
6. 74 instructions with the following addressing modes:  Register, direct, immediate, indirect, and implied
7. Provides 16 address lines hence access 64K Bytes of memory, program as well as data memory
8. Provides 5  hardware interrupts TRAP, RST 7.5, RST 6.5, RST 5.5, and INTR.
9. Provides on-chip clock generator hence does not require external clock generator
10. Perform arithmetic and logical operations
11. Provides control signals to control the bus cycles
12. Provides two serials I/O lines viz SOD and SID hence serial peripherals can be interfaced with 8085 directly
13. Supports mechanism that allows 8085 to increase its interrupt handling capacity
14. Provides 8-bit accumulator , flag register , 6 general-purpose register(B,C,D,E,H,L) , 2 special purpose 16-bit registers(SP,PC)
15. The data bus(D0-D7) multiplexed with lower 8-bit address bus(A0-A7) hence requires external hardware to separate data lines from the address line