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AN620 Datasheet

Part Number AN620
Manufacturers Thomson
Logo Thomson
Description On Board Programming of OTP EPROM
Datasheet AN620 DatasheetAN620 Datasheet (PDF)

www.DataSheet4U.com AN620 APPLICATION NOTE ON-BOARD PROGRAMMING OF OTP EPROM by Franco MORANDI In recent years interest has been growing in On-Board Programming of OTP EPROM memories. There are two main factors which have stimulated this interest: the growth of the FLASH Memory market and the increased use of surface mount packages. THE GROWTH OF THE FLASH MEMORY MARKET UV EPROMs and OTP EPROMs offer a higher degree of flexibility compared to Mask ROMs. This is due to their ability to be elect.

  AN620   AN620






Part Number AN6291S
Manufacturers Panasonic Semiconductor
Logo Panasonic Semiconductor
Description Dual dbx II Noise Reduction System ICs
Datasheet AN620 DatasheetAN6291S Datasheet (PDF)

ICs for Cassette, Cassette Deck AN6291, AN6291S Dual dbx II Noise Reduction System ICs s Overview The AN6291 and the AN6291S are the single chip ICs suitably developed for noise reduction of dbxII type and used for stereo operation. They can be used for U.S. sound multiplex TV. 1.8V low voltage operation enables to apply for battery-operated equipment to the Hi-Fi deck. Package is available for 22-pin DIL plastic and 22-pin SOP package. Equipment can be minitualized and high integration. AN6291.

  AN620   AN620







Part Number AN6291
Manufacturers Panasonic Semiconductor
Logo Panasonic Semiconductor
Description Dual dbx II Noise Reduction System ICs
Datasheet AN620 DatasheetAN6291 Datasheet (PDF)

ICs for Cassette, Cassette Deck AN6291, AN6291S Dual dbx II Noise Reduction System ICs s Overview The AN6291 and the AN6291S are the single chip ICs suitably developed for noise reduction of dbxII type and used for stereo operation. They can be used for U.S. sound multiplex TV. 1.8V low voltage operation enables to apply for battery-operated equipment to the Hi-Fi deck. Package is available for 22-pin DIL plastic and 22-pin SOP package. Equipment can be minitualized and high integration. AN6291.

  AN620   AN620







Part Number AN629
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Digitally Adjustable Voltage References
Datasheet AN620 DatasheetAN629 Datasheet (PDF)

DIGITAL POTENTIOMETERS Jul 01, 2001 Digitally Adjustable Voltage References A digitally adjustable voltage reference is useful in many applications. For instance, it can be used to finely tune the reference voltage when absolute accuracy is required or to adjust the reference voltage to match the full-scale voltage range of an analog-input signal to maximize the dynamic range of an analog-to-digital conversion. You can easily create one by combining an adjustable voltage reference with a digit.

  AN620   AN620







Part Number AN6280
Manufacturers ETC
Logo ETC
Description Nut
Datasheet AN620 DatasheetAN6280 Datasheet (PDF)

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  AN620   AN620







Part Number AN6270
Manufacturers Panasonic
Logo Panasonic
Description Reel Motor Driver Circuit for Cassette Decks
Datasheet AN620 DatasheetAN6270 Datasheet (PDF)

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  AN620   AN620







On Board Programming of OTP EPROM

www.DataSheet4U.com AN620 APPLICATION NOTE ON-BOARD PROGRAMMING OF OTP EPROM by Franco MORANDI In recent years interest has been growing in On-Board Programming of OTP EPROM memories. There are two main factors which have stimulated this interest: the growth of the FLASH Memory market and the increased use of surface mount packages. THE GROWTH OF THE FLASH MEMORY MARKET UV EPROMs and OTP EPROMs offer a higher degree of flexibility compared to Mask ROMs. This is due to their ability to be electrically programed and, in the case of the UV EPROM, erased by exposure to UV light, then re-programed. The ability to electrically program these parts is the most important feature which allows UV EPROMs or OTP EPROMs to be seen by users as ROMs which are programmable at the final moment in the exact quantity required. Programming of the memories is mainly done by the use of dedicated programing equipment using software algorithms which match those specified by the major chip makers. Fast programming services are also offered by testing houses and by vendors themselves for a small price premium. The plastic packaged OTP EPROMs are therefore regarded by many as ’flexible ROMs’. Programming of OTP EPROMs in the application board itself, rather than in the dedicated programming equipment, has not been common until the recent introduction of FLASH Memories. One of the important features of the FLASH Memory is its programability (and erase and re-programability) on board, in the application.


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