Datasheet Reference.com provides free datasheets, circuit schematics, pinouts and DIY projects for the top semiconductors and ICs.
Most Popular Electronics Components
LM317 Regulator
This is a very popular integrated three-terminal adjustable linear voltage regulator. LM317 Regulator is a positive voltage regulator supporting input voltage of 3V to 40V and output voltage between 1.25V and 37V. The LM317 datasheet is provided from several manufacturers of this popular device.
NE555 IC Timer
This 8-pin NE555 datasheet is one of several 555 timer ICs. These timers are among the most useful ICs ever made and it is used in many projects. With just a few external components it can be used to build many circuits, not all of them involve timing!
The Atmel 89C51, or AT89C51, is an 8051-based Fully Static 24MHz CMOS controller.
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DatasheetReference provides free IC datasheet PDF downloads, pinouts, circuit schematics, technical specs, and sourcing information.
The DatasheetReference site is quickly growing to become the be all datasheet catalog for the electronics components industry. The emphasis on datasheets is because of thier critical role in the initial selection, evaluation and revision of design incorporating the electronics components. The datasheet PDF document summarize the performance and other technical characteristics of a semiconductor, IC, passive or electo-mechanical devic or a sub-system (e.g. a power supply) or software in sufficient detail to be used by a design engineer to design the component into a system. Typically a datasheet is created by system manufacturer and begins with an introductory page describing the rest of the document, followed by listings of specific components, with further information on the connectivity of the devices. In cases where there is relevant source code to include, it is usually attached near the end of the document or separated into another file.
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