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AN2061中文資料意法半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書

AN2061
廠商型號

AN2061

功能描述

External EEPROMs are often used in automotive applications

文件大小

189.24 Kbytes

頁面數(shù)量

15

生產(chǎn)廠商 STMicroelectronics
企業(yè)簡稱

STMICROELECTRONICS意法半導(dǎo)體

中文名稱

意法半導(dǎo)體集團官網(wǎng)

原廠標(biāo)識
數(shù)據(jù)手冊

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更新時間

2025-2-24 17:42:00

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AN2061規(guī)格書詳情

INTRODUCTION

Substituting external EEPROM with emulated EEPROM from the embedded-Flash of the Microcontroller is a complex development. This application note assumes that readers are already familiar with the techniques used to secure the content of evolutive information in external EEPROM of embedded applications.

This application note is organized in 3 parts:

– description of the differences between external EEPROMs and embedded-Flash,

– general description of EEPROM emulation concept,

– introduction to embedded application aspects.

Although this application note is focused and applicable to ST10F269, ST10F280, ST10F276 (and its derivatives: ST10F275, ST10F273, ST10F272, ST10F271), ST10F252 and ST10F296, most of its content is not dependent on the microcontroller.

Description

External EEPROMs are often used in automotive applications to store adaptative/evolutive data. On the other hand, the Microcontroller used in those systems, are more and more based on embedded-Flash.

The trend to continuously reduce the number of components is forcing designers to look to use Flash memory to emulate EEPROM.

This application note will explain the differences between external EEPROMs and embeddedFlash and will give advises on how to substitute external EEPROM to emulated-EEPROM using the on-chip Flash of ST10F2xx devices.

Although the concept is easy to explain and implement “as is”, there are some embedded aspects that have to be taken into account.

In this application note, the handling of embedded aspects to secure the content of an external EEPROM are assumed to be known by the reader. So, this document is focusing on the differences between EEPROMs and embedded-Flash.

供應(yīng)商 型號 品牌 批號 封裝 庫存 備注 價格
DOINGTER
2022+
TO-3P
30000
進口原裝現(xiàn)貨供應(yīng),原裝 假一罰十
詢價
FREESCALE
23+
NA
19960
只做進口原裝,終端工廠免費送樣
詢價
EPCOS
18+
SMD
9000
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力
詢價
SMD
23+
NA
15659
振宏微專業(yè)只做正品,假一罰百!
詢價
PICOICC
24+
SOT23-5
5650
公司原廠原裝現(xiàn)貨假一罰十!特價出售!強勢庫存!
詢價
UNKNOWN
23/05/1998
3660
原裝正品現(xiàn)貨庫存價優(yōu)
詢價
PICOICC
23+
PQFP-100
3200
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售!
詢價
Panasonic
24+
SOP-163.9mm
1750
詢價
THOMSON
24+
35200
一級代理/放心采購
詢價
PANASONIC/松下
23+
SOP-163.9mm
5000
原廠授權(quán)代理,海外優(yōu)勢訂貨渠道??商峁┐罅繋齑?詳
詢價