An 8051 microcontroller from 1980 in an Arduino form factor @hackadayio @microchipmakes

ElectroBoy on hackaday.io has created a development board using a Microchip Atmel AT89S52, a modern reimagining of the Intel 8051 microcontroller from 1980.

As you might see, the performance of a microcontroller depends on architecture, clock rates and Design logic. 80s52 has higher performance and better features than (the) Original (8051) microcontroller with 8KB onboard Flash as program memory.

I took inspiration from Arduino UNO and designed a PCB with all the controls on it, the programming headers are placed on one header, and all the 4 ports have dual headers. I also designed the power section with some capacitor, Dc jack and linear voltage regulator on the same board.

Comparing the 8051 with the Microchip AT89S52:

Original 8051 Features:

• 40 pins DIP (dual inline package),
• 4KB of ROM storage
• 128 bytes of RAM storage
• 2 16-bit timers
• Low-power Idle and Power-down Modes
• It consists of four parallel 8-bit ports (32 Programmable I/O Lines)
• An on-chip crystal oscillator having crystal frequency of 12 MHz

80s52 Custom 8051 microcontroller:

• 8KB of In-System Programmable (ISP) Flash Memory
• 4.0V to 5.5V Operating Range
• Fully Static Operation: 0 Hz to 33 MHz
• 256 x 8-bit Internal RAM
• 32 Programmable I/O Lines
• 3 16-bit Timer/Counters
• Eight Interrupt Sources
• Full Duplex UART Serial Channel
• Low-power Idle and Power-down Modes
• Interrupt Recovery from Power-down Mode
• Watchdog Timer
• Dual Data Pointer

Read more on hackaday.io and Hackaday.

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