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BUY NE555PSRE4 https://www.utsource.net/itm/p/11690214.html
IC OSC SINGLE TIMER 100KHZ 8SO
Description: The NE555PSRE4 is a precision timing circuit from Texas Instruments. It is a highly stable controller capable of producing accurate time delays or oscillation. Features: High stability and accuracy Adjustable duty cycle Output can source or sink up to 200mA Operating temperature range from -40°C to +85°C Low power consumption Low cost Applications: Pulse generation Sequential timing Time delay generation Pulse width modulation LED and lamp flashers Motor speed control Proximity detection Security systems (For reference only)