It contains a Kbyte Flash memory block for code and for data. The Kbytes Flash memory can be programmed either in parallel mode or in serial mode with the ISP capability or with software. The programming voltage is internally generated from the standard VCC pin. In the Idle mode the CPU is frozen while the peripherals and the interrupt system are still operating. In the Powerdown mode the RAM is saved and all other functions are inoperative.
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The flash memory can be programmed in parallel or serial mode using the ISP capability or using software. The programming voltage is internally generated from the standard VCC pin. This device retains all of the features of the Microchip 80C52 and adds a programmable counter array, bytes of XRAM, a hardware watchdog timer, SPI interface, keyboard, a more versatile serial channel that facilitates multiprocessor communication EUART , and a speed improvement mechanism X2 Mode.
For pricing and availability, contact Microchip Local Sales. Development Environment. Similar Devices. Jump to: Select type. Data Sheets. Application Notes Download All. Atmel Flash Microcontroller Product Portfolio. Device Programmers for Devices - This Excel spreadsheet provide summary information on device programmers supporting Atmel microcontrollers. Emulators for 80C51 Devices - This Excel spreadsheet provide summary information on emulation support for Atmel 80C51 microcontrollers.
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AT89C51ED2 Microcontroller. Datasheet pdf. Equivalent