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Difference among 8085,8086,80186,80286,80386 Microprocessor.pdf
The document provides a comparison of five microprocessors: 8085, 8086, 80186, 80286, and 80386, highlighting their introduction years, transistor counts, technology types, pin configurations, address and data bus sizes, maximum memory capacities, clock frequencies, cache memory, multitasking capabilities, and execution speeds. The 8085 was introduced in 1976 with 6,500 transistors, whereas the 80386, introduced in 1985, features 275,000 transistors and supports advanced features like pipelining and virtual memory. This comparison illustrates the evolution of microprocessor technology over time.
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Difference among 8085,8086,80186,80286,80386 Microprocessor.pdf
- 1. Question:- Write downthe basic comparisons among 8085 µP, 8086 µP, 80186 µP, 80286 µP and 80386 µP Ans:- The basic comparison among 8085 µP, 8086 µP, 80186 µP, 80286 µP and 80386 µP Basic information 8085 µP 8086 µP 80186 µP 80286 µP 80386 µP Introduce Year 1976 1978 1982 1983 1985 Number of Transistors in structure 6,500 29,000 55,000 1,34,000 2,75,000 Technology NMOS NMOS NMOS NMOS CMOS Number of pins 40 40 40 68 132 Address Bus Size 16 bit 20 bit 20 bit 24 bit 32 bit Data Bus Size 8 bit 16 bit 16 bit 16 bit 32 bit Maximum accessible memory Size 64 kB 1 MB 1MB 16MB 4GB Clock Frequency 3 MHz 5-10 MHz 8-10 MHz 8-12.5 MHz 12-40 MHz Memory segmentation Not support Support Support Support Support Operation Code 76 76 76 ALU Size 8 bit 16 bit 16 bit 16 bit 32 bit Instructions 246 256 256 271 276 Operation Mode Single Mode Minimum Mode & Maximum Mode Internal Mode & External Mode Real Mode & Virtual Mode Real, Protected & Virtual Mode
- 2. Basic information 8085 µP 8086 µP 80186 µP 80286 µP 80386 µP Cache Memory NoNo No No Yes Virtual Memory No No No 1 GB Up to 64 TB No. of Register 12 (11 permanent & 1 temporary ) 14 14 14 16 Number of Flag Register 5 6 9 11 13 Flag Register Size 8 bit 16 bit 16 bit 16 bit 32 bit Multitasking Capability No No No Yes Yes Execution Speed 2.5 MIPS 8 MIPS 27 MIPS Pipelining No Yes Yes Yes Yes