EM78P447SAP-G DATASHEET PDF

Table 1 EM78PSAP, EM78PSAM and EM78PSFK Pin Description 37 EM78PS-G I-V Curve Operating at kHz max. EM78PSAP Datasheet PDF Download -, EM78PSAP data sheet. EM78PSAP datasheet, EM78PSAP datasheets and manuals electornic semiconductor part. EM78P, EM78PN, EM78PNAM, EM78PNAP .

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The SLPC bit can be read and written. The ODE bit can be read and adtasheet. VDD, Prescaler Set to 1: Em78p447sp-g, the computed jump is limited to the first locations of a page. Set as TCC overflows; flag cleared by software. Zhangjiang, Hi-tech Park, Shanghai Telephone: A Change em78p447aap-g instruction cycle to consist of 4 oscillator periods. Once in the interrupt service routine, the source of an interrupt can be determined by polling the flag bits in R3F.

Without prescaler, the WDT time-out period is approximately 18 ms1 default. This way, the EM78PS will reset and work normally. The most up-to-day information is available on the website http: If they cannot be kept in this range, the frequency is easily affected by noise, This specification is subject to change without prior notice.

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This circuit is used when the power supply has slow rise time. In this case, the execution takes two instruction cycles. The smaller the Rext in the RC oscillator, the faster its frequency will be. The ROC bit can be read and written.

EM78P447SAP-G DATASHEET

A, it is recommended that R should not be greater than 40 K. Nevertheless, it should be noted that the frequency of the RC oscillator is influenced by the supply voltage, the values of the resistor Rextthe capacitor Cextand even by the operation temperature.

XTAL frequency selection 0: The device characteristic illustrated herein are not guaranteed for it accuracy. Programmable free running watchdog timer? A serial resistor may be necessary for AT strip cut crystal or low frequency mode. Enable the wake-up function. The diode D acts as a short circuit at the moment of power down.

EM78PSAP Datasheet(PDF) – ELAN Microelectronics Corp

SLPC is used to control the oscillator operation. The specifications of the Product and its applied technology will be updated or changed time by time.

The interrupt flag bit must be cleared by instructions before leaving the interrupt service routine and before interrupts are enabled to avoid recursive interrupts. If this pin remains at logic low, the controller will keep in reset condition.

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The actual specifications and applied technology will be based on each confirmed order. It cannot be addressed. Upon waking, the controller will continue to execute the succeeding address. To avoid reset from occurring when the port6 status changed interrupt enters into interrupt vector or is used to wake-up the MCU, the WDT prescaler must be set above 1: A mA mA This specification is subject to change without prior notice.

These can be pulled -high internally by software control. R3F can be cleared by instruction, but cannot be set by instruction. Output terminal em78447sap-g crystal oscillator or external clock input pin. The WDT operation to be enabled or disabled should be appropriately controlled by software after daatsheet up.

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