AT89C51CC03U-RDTIM datasheet(32/197 Pages) ATMEL

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AT89C51CC03U-RDTIM 데이터시트(PDF) 32 Page - ATMEL Corporation

부품명	AT89C51CC03U-RDTIM

상세설명	Enhanced 8-bit MCU with CAN Controller and Flash Memory

PDF	197 Pages

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제조업체	ATMEL [ATMEL Corporation]

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32 / 197 page

AT89C51CC03

4182K–CAN–05/06

Reset

Introduction

The reset sources are : Power Management, Hardware Watchdog, PCA Watchdog and

Reset input.

Figure 16. Reset Schematic

Reset Input

The Reset input can be used to force a reset pulse longer than the internal reset con-

trolled by the Power Monitor. RST input has a pull-down resistor allowing power-on

reset by simply connecting an external capacitor to VCC as shown in Figure 17. Resistor

value and input characteristics are discussed in the Section “DC Characteristics” of the

AT89C51CC03 datasheet. The status of the Port pins during reset is detailed in Table 9.

Figure 17. Reset Circuitry and Power-On Reset

Power

Monitor

Hardware

Watchdog

PCA

Watchdog

RST

Internal Reset

RST

VSS

To internal reset

RST

VDD

b. Power-on Reset

a. RST input circuitry

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