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The Intel 8088 (" eighty-eighty-eight ", also called iAPX 88) [2][3][4] microprocessor is a variant of the Intel 8086. Introduced on June 1, 1979, [5][6][7][8] the 8088 has an eight-bit external data bus instead of the 16-bit bus of the 8086. The 16-bit registers and the one megabyte address range are unchanged, however. In fact, according to the Intel documentation, the 8086 and 8088 have the ...
The 8086 and 8088 microprocessors which were both from Intel Company where significant in advancing the development of computing technology. While these two processors have similarity in their architecture, the variation in the two constitute a very big difference in the performance, memory management, and data control of the two.
The 8088 was a 16-bit chip internally, with all the quirks of the 8086, but it had an 8-bit data bus. This made it cheaper to manufacture and allowed it to use cheaper support chips.
The Intel 8088 microprocessor is a variant of the Intel 8086. Introduced on July 1, 1979, the 8088 had an 8-bit external data bus instead of the 16-bit bus of the 8086.
Secret of 8088's Success 8088 is 8086's castrated twin brother Identical to 8086 in every respect except half of its data pins were cut off Both work with 16-bit data internally But 8088 sends data externally 8 bits at a time (instead of 16)
HLDA indicates that the 8086/8088 has entered the hold state. ximum mode operation of the microprocessor. This signal is combined with / ̅ and ⁄ ̅ to decode the function Maximum Mode Pins: In order to achieve maximum mode for use with external coprocessors, connect the ⁄ ̅̅̅̅̅̅̅ pin to ground.
Figure 9-1 illustrates pin-outs of 8086 & 8088. both are packaged in 40-pin dual in-line packages (DIPs) 8086 is a 16-bit microprocessor with a 16-bit data bus; 8088 has an 8-bit data bus. 8086 has pin connections AD0-AD 8088 has pin connections AD0-AD 15 7 Data bus width is the only major difference. thus 8086 transfers 16-bit data more ...
The 8088 chip is a variation of the Intel 8086. Presented on July 1, 1979, the 8088 had an 8-bit outer information transport rather than the 16-bit transport of the 8086.
Conclusion The most significant difference between the 8086 and 8088 microprocessors is that 8086 is a 16-bit microprocessor, while 8088 is an 8bit microprocessor. Both 8086 and 8088 are the earliest microprocessors developed by Intel, however they are still widely used in embedded systems due to their various important and unique features.
The Intel 8088, released July 1, 1979, [7] is a slightly modified chip with an external 8-bit data bus (allowing the use of cheaper and fewer supporting ICs), [note 1] and is notable as the processor used in the original IBM PC design. The 8086 gave rise to the x86 architecture, which eventually became Intel's most successful line of processors.