AN-501 Power-Up/Down Considerations in NOR Flash Application Note

PublishTime：2021-12-01

●Introduction
■Flash memory devices are widely used components in microcontroller systems as regular companions to MCUs. Compared to MCUs, complex PMICs, and other SoCs, Flash memory is perceived to be a rather simple device. For example, a typical serial Flash device is commonly housed in an eight-pin package, contains two data pins (in and out), and communicates with the MCU over a simple four-wire SPI protocol. Such perceived simplicity, however, can be deceiving. Some important system design requirements specific to NOR Flash, such as proper power-up sequencing, can be overlooked. Under certain conditions, this can lead to unexpected and undesirable system operation.

Brand of Product：	DIALOG SEMICONDUCTOR
Part#：
Product Category：	Flash memory devices 、 NOR Flash More
Application：	More
Data Type：	Application note & Design Guide More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	09-2021
Version Number：	Revision A2
Data Encoding：	AN501
Data Size：	1 MB

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