资料介绍
Microcontroller and microprocessor based systems rely on pro-
cessor supervisory functions to insure stable operation. The most
basic of all these functions is managing the processor reset input.
To ensure stable operation, the processor must be held in reset
any time supply voltage is out-of-tolerance. Once supply voltage
is in-tolerance, the processor must be maintained in reset for an
additional time period to ensure a stable start-up. The processor
reset function may be contained on-board the processor itself, or
may be externally implemented using discrete components or a
supervisor IC. AN802
Selecting a Processor Reset IC
Author: Paul Paglia, VDD
Microchip Technology, Inc.
INTRODUCTION VCC
Microcontroller and microprocessor based systems rely on pro-
cessor supervisory functions to insure stable operation. The most
basic of all these functions is managing the processor reset input. MCLR
To ensure stable operation, the processor must be held in reset
any time supply voltage is out-of-toler
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