Product category: Memory Devices and Modules
News Release from: Maxim Integrated Products | Subject: DS25LV02
Edited by the Electronicstalk Editorial Team on 09 June 2006
Low-voltage EPROM is home for battery
pack data
The DS25LV02 is a 1024bit EPROM that can operate from supply voltages as low as 2.2V.
New from Dallas Semiconductor, the DS25LV02 is a 1024bit EPROM that can operate from supply voltages as low as 2.2V This low-voltage operation, along with data-storage capability and a serial number ID, make this device ideal for use in battery packs
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
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Additionally, the DS25LV02 is an upgrade to the DS2502 and is completely backwards compatible for existing DS2502 designs.
The 1024bit EPROM is organised as four pages of 32byte each and can store battery-cell characteristics, charging voltage records, current and temperature parameters, and battery-pack manufacturing data.
Each memory page can be individually locked to provide security for unchanging data.
For additional protection, the unique 64bit serial number can be used for battery-pack identification.
All communication between the DS25LV02 and the host processor occurs through the 1-Wire data interface.
This simple interface saves cost and space by requiring only three contacts between the host and the battery pack: Pack+, Pack- and Data.
The data contact can also serve as a power line to the device, because the DS25LV02 can be powered directly through its 1-Wire interface.
Typical applications for the DS25LV02 include wireless handsets, digital still cameras, and MP3 players.
The device is available in a tiny, 5-pin thin SOT (TSOT) package.
Prices start at $0.70 (10,000-up, FOB USA).
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