PIC16LC84-04ISO 查看數據表（PDF） - Microchip Technology

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PIC16LC84-04ISO

8-bit CMOS EEPROM Microcontroller

Microchip Technology 

PIC16C84

FIGURE 8-11: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD): FAST VDD RISE TIME

VDD

MCLR

INTERNAL POR

PWRT TIME-OUT

OST TIME-OUT

INTERNAL RESET

TPWRT

TOST

FIGURE 8-12: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD): SLOW VDD RISE TIME

V1

VDD

MCLR

INTERNAL POR

PWRT TIME-OUT

OST TIME-OUT

TPWRT

TOST

INTERNAL RESET

When VDD rises very slowly, it is possible that the TPWRT time-out and TOST time-out will expire before VDD

has reached its final value. In this example, the chip will reset properly if, and only if, V1  VDD min.

DS30445D-page 42

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