
LM809M3X-2.63
ObsoleteIC SUPERVISOR 1 CHANNEL SOT23-3

LM809M3X-2.63
ObsoleteIC SUPERVISOR 1 CHANNEL SOT23-3
Description
General part information
LM809 Series
The LM809 and LM810 microprocessors supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, power-down and brown-out conditions.
The function of the LM809 and LM810 are to monitor the VCCsupply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240 ms after VCCrises above the threshold. The LM809 has an active-lowRESEToutput, while the LM810 has an active-high RESET output.
Seven standard reset voltage options are available, suitable for monitoring 5-V, 3.3-V, and 3-V supply voltages.
Technical Specifications
Parameters and characteristics for this part
| Specification | LM809M3X-2.63 |
|---|---|
| Mounting Type | Surface Mount |
| Number of Voltages Monitored | 1 |
| Operating Temperature (Max) | 105 °C |
| Operating Temperature (Min) | -40 °C |
| Output | Push-Pull, Totem Pole |
| Package / Case | TO-236-3, SOT-23-3, SC-59 |
| Package Name | SOT-23-3 |
| Reset | Active Low |
| Reset Timeout (Minimum) | 140 ms |
| Type | Simple Reset/Power-On Reset |
| Voltage - Threshold | 2.63 V |
Pricing
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