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Intel C8085
40-pin ceramic DIP Purple ceramic/black top/tin pins
M. Krishna Kumar MM/M1/LU2/V1/2004 1
8085 Microprocessor
• • • • The salient features of 8085 µp are : It is a 8 bit microprocessor. It is manufactured with N-MOS technology. It has 16 bit address bus and hence can address upto 216 = 65536 bytes (64KB) memory locations through A0-A15. The first 8 lines of address bus and 8 lines of data bus are multiplexed AD0 – AD7.
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M. Krishna Kumar
MM/M1/LU2/V1/2004
2
8085 Microprocessor ( cont..)
• • • • • • • Data bus is a group of 8 lines D0 – D7. It supports external interrupt request. A 16 bit program counter (PC) A 16 bit stack pointer (SP) Six 8-bit general purpose register arranged in pairs: BC, DE, HL. It requires a signal +5V power supply and operates at 6.