7/4/2023 0 Comments Free download 555 timer pinout![]() ![]() ![]() The 555 and its derivatives come in DIP (dual in-line package) and SMD (surface mount device) packages. There are many different manufacturers and many different part number prefixes and suffixes, and they are available in a dual version (556). The CMOS version (7555) has lower output current and also draws less supply current, and can run from 2V up to 15V. The IC can provide up to 200mA output current (source or sink) and operates from a supply voltage from 4.5V up to 18V. It can function as an oscillator, a timer, and even as an inverting or non-inverting buffer. The 555 timer has been with us since 1972 - that's a long time for any IC, and the fact that it's still used in thousands of designs is testament to its usefulness in a wide variety of equipment, both professional and hobbyist.
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