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8XC151SA and 8XC151SB Hardware Description

The 8XC151SA/SB is a highly integrated CMOS 8-bit microcontroller which is instruction set compatible with the MCS(R) 51 microcontroller. It comes in 40-lead PDIP and 44-lead PLCC maintaining pin compatibility with MCS 51 microcontrollers. The 8XC151SA/SB has 256 bytes of on-chip RAM and is available with 8/16 Kbytes of on-chip ROM/OTPROM or ROMless. Several new features like programmable wait states, page mode and Extended ALE can be selected by using the new user programmable configuration. Key features like instruction pipeline, minimum of 2 clocks per instruction and code fetch in page mode are available.

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