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參數(shù)資料
型號(hào): 79C0408RPFI-15
廠商: MAXWELL TECHNOLOGIES
元件分類: PROM
英文描述: 4 Megabit (512k x 8-bit) EEPROM MCM
中文描述: 512K X 8 EEPROM 5V MODULE, 150 ns, DFP40
封裝: DFP-40
文件頁數(shù): 14/20頁
文件大?。?/td> 353K
代理商: 79C0408RPFI-15
M
14
All data sheets are subject to change without notice
2004 Maxwell Technologies
All rights reserved.
4 Megabit (512k x 8-bit) EEPROMMCM
79C0408
10.13.04 Rev 15
During readout or standby, noise on the control pins may act as a trigger and turn the EEPROMto programmng mode by ms-
take. To prevent this phenomenon, the EEPROMhas a noise cancellation function that cuts noise if its width is 20 ns or less in
programmng mode. Be careful not to allow noise of a width of more than 20ns on the control pins.
2. Data Protection at V
CC
on/off
When V
CC
is turned on or off, noise on the control pins generated by external circuits, such as CPUs, may turn the EEPROMto
programmng mode by mstake. To prevent this unintentional programmng, the EEPROMmust be kept in unprogrammable
state during V
CC
on/off by using a CPU reset signal to RES pin.
RES should be kept at V
SS
level when V
CC
is turned on or off. The EEPROMbreaks off programmng operation when RES
becomes low programmng operation doesnt finish correctly in case that RES falls low during programmng operation. RES
should be kept high for 10 ms after the last data input.
3. Software Data Protection
The software data protection function is to prevent unintentional programmng caused by noise generated by external circuits.
In software data protection mode, 3 bytes of data must be input before write data as follows. These bytes can switch the non-
protection mode to the protection mode.
10mS min
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
79C0408RPFI20 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:4 Megabit EEPROM MCM
79C0408RPFI-20 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:4 Megabit (512k x 8-bit) EEPROM MCM
79C0408RPFK12 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:4 Megabit EEPROM MCM
79C0408RPFK-12 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:4 Megabit (512k x 8-bit) EEPROM MCM
79C0408RPFK15 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:4 Megabit EEPROM MCM
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