參數資料
型號: 29F0408RPFB
廠商: MAXWELL TECHNOLOGIES
元件分類: PROM
英文描述: 32 Megabit (4M x 8-Bit) Flash Memory
中文描述: 4M X 8 FLASH 5V PROM, 35 ns, DFP44
封裝: DFP-44
文件頁數: 28/33頁
文件大小: 941K
代理商: 29F0408RPFB
28
Alldatasheetsaresubjecttochangewithoutnotice
2002MaxwellTechnologies
Allrightsreserved.
32Megabit(4Mx8-Bit)FlashMemory
29F0408
11.08.02Rev2
RESET
Thedeviceoffers aresetfeature, executedbywriting FFhtothecommandregister. Whenthedeviceis in
Busystateduringrandomread, programorerasemodes,theresetoperationwillaborttheseoperation.The
contents of memory cells being altered are no longer valid, as the data will be partially programmed or
erased. Internal address registers are clearedto"0"s anddata registers to"1"s. The commandregisteris
clearedtowaitforthe nextcommand, andthe Status Registeris clearedtovalue C0hwhenWP is high.
Refertotable 15fordevice status afterresetoperation. Ifthe device is already inresetstate a newreset
commandwillnotbeacceptedtobythecommandregister. TheR/Bpintransitions tolowfort
RST
afterthe
Resetcommandiswritten.Resetcommandisnotnecessaryfornormaloperation.RefertoFigure29below
F
IGURE
29.RESET O
PERATION
T
ABLE
15.D
EVICE
S
TATUS
DATAPROTECTION
Thedeviceis designedtoofferprotectionfromanyinvoluntaryprogram/eraseduringpower-transitions. An
internalvoltagedetectordisables allfunctions wheneverV
CC
is belowabout2V. WP pinprovides hardware
protectionandis recommendedtobekeptatV
IL
duringpower-upandpower-downas showninFigure30.
Thetwostepcommandsequenceforprogram/eraseprovidesadditionalsoftwareprotection.
相關PDF資料
PDF描述
29F0408RPFE 32 Megabit (4M x 8-Bit) Flash Memory
29F0408RPFI 32 Megabit (4M x 8-Bit) Flash Memory
29F0408RPFS 32 Megabit (4M x 8-Bit) Flash Memory
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相關代理商/技術參數
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29F0408RPFE 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:32 Megabit (4M x 8-Bit) Flash Memory
29F0408RPFI 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:32 Megabit (4M x 8-Bit) Flash Memory
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