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0 – July. 1. Qualification Package. AT89C51ED2. FLASH 8-bit C51 Microcontroller. 64 Kbytes FLASH, 2 Kbytes EEPROM. AT89C51RD2 / AT89C51ED2. AT89C51ED2-SLSUM Microchip Technology / Atmel 8-bit Microcontrollers – MCU 64kB Flash B RAM VV datasheet, inventory, & pricing. AT89C51ED2-SLSIM Microchip Technology / Atmel 8-bit Microcontrollers – MCU 80C31 w/4k datasheet, inventory, & pricing.

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Once the internal supply after zt89c51ed2 voltage regulator reach a safety level, the power monitor then looks at the XTAL clock input. It is possible to use Timer 2 as a baud rate generator and a clock generator simultaneously.

By default, Standard mode is active. Clear to select 6 clock periods per peripheral clock cycle. Page 34 Table It contains a Kbyte Flash memory block for code and for data. Page 98 Figure Added Flash write programming time specification.

AT89C51ED2 Datasheet(PDF) – ATMEL Corporation

It is driven by the Master for eight clock datashset which allows to exchange one Byte on the serial lines. A warm start reset occurs while VCC is still applied to the device and could be generated for example by an exit from power-down. During the time that execution resumes, the internal RAM cannot be accessed; however, it dayasheet possible for the Port pins to be accessed. A cold start reset is the one induced by VCC switch-on. Don’t see a manual you are looking for?


It contains 64K bytes of program memory organized respectively in pages of bytes.

Page 66 Figure ta89c51ed2 Page 62 Table Page 78 Table The Kbytes Flash memory can be programmed either in parallel mode or in serial mode with the ISP capability or with software. From level 0, one can write level 1 or level 2. Symbol Description Symbol T Table Page 58 Table Tell us about it.

U MOVC instruction executed from external program memory is disabled from fetching code bytes from internal memory, EA is sampled and latched on reset, and further parallel programming of the on chip code memory is disabled.

Do not set this bit 6 – Reserved The value read from this bit is indeterminate. Set by hardware datsheet VCC rises from 0 to its nominal voltage. Set by hardware when an invalid stop bit is detected.


Page 10 NIC P2. Datasheeg 50 Slave C: It provides both synchronous and asynchronous communication modes. Set to enable SPI interrupt. The four segments are: Cleared by hardware when programming is done. Set by user for general purpose usage. Or point us to the URL where the manual is located.


Set to enable a high level detection on Port line 7. The WDT is by default disabled from exiting reset.

Document Revision History Set to select 12 clock periods per peripheral clock cycle. Your manual failed to upload CF may be set at89c51er2 either hardware or software but can only be cleared by software.

Timer 2 operation is similar to Timer 0 and Timer 1. Can also be set by software.