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Module 1: Fundamentals of Microprocessors

20207m

Explain the overview of 8051 family.

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Overview of 8051 Family

MCS-51 launched by Intel 1980. Members: 8051 (4KB ROM,128B RAM), 8052 (8KB/256B + T2), 8031 (0KB ROM-less), 8751 (EPROM), AT89C51 (Flash), AT89S52 etc. Derivatives from Philips, Atmel, NXP, Silicon Labs. Core: 8-bit CPU, 32 I/O, 2 timers, 5 interrupts, 1 UART, 64K program/data, 40-pin. Extensions: 80C51 CMOS, low-power, more timers, ADC, CAN. Modern: 8051 IP core still widely used in SoCs.

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