See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

DBZ | 3

Temp:

S (-40 to 105)

ECO Plan:

Green (RoHS & no Sb/Br)

LM809M3X-3.08/NOPB


Active Low Wide Temperature 3-Pin Reset IC

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Texas Instruments LM809M3X-3.08/NOPB

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 VCC supply 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 VCC rises above the threshold. The LM809 has an active-low RESET output, 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.

With a low supply current of only 15 µA, the LM809 and LM810 are ideal for use in portable equipment.

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