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BUY MCP809T-450I/TT https://www.utsource.net/itm/p/11662574.html
IC SUPERVISOR 4.50V LOW SOT23
Description: The MCP809T-450I/TT is a precision microprocessor supervisory circuit that is designed to monitor the power supply voltage of microprocessor-based systems. It provides an accurate reset output when the monitored voltage drops below a preset threshold. Features: Low supply current: 0.8μA (typical) Low reset threshold voltage: 4.50V (typical) Reset output active-low Manual reset input Power-on reset (POR) Watchdog timer Temperature range: -40°C to +125°C Available in SOT23-3 package Applications: Automotive Industrial Consumer Portable electronics Battery-powered systems (For reference only)