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MAX822

Maxim Integrated
Part Number MAX822
Manufacturer Maxim Integrated
Description 4-Pin uP Voltage Monitors
Published Dec 11, 2017
Detailed Description 19-1122; Rev 1; 12/99 MAX821/MAX822 4-Pin µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout Delay Genera...
Datasheet PDF File MAX822 PDF File

MAX822
MAX822

Overview
19-1122; Rev 1; 12/99 MAX821/MAX822 4-Pin µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout Delay General Description The MAX821/MAX822 microprocessor (µP) supervisory circuits monitor power supplies in µP and digital systems.
They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V-powered or 3V-powered circuits.
The MAX821/MAX822 also provide a power-on reset timeout delay that is pin selectable to 1ms (max), 20ms (min), or 100ms (min).
These devices perform a single function: they assert a reset signal whenever the VCC supply voltage falls below a preset threshold, and they keep reset asserted for the pin-selected reset timeout delay after VCC has risen above the reset threshold.
The only difference between the two devices is that the MAX821 has an active-low RESET output (which is guaranteed to be in the correct state for VCC down to 1V), while the MAX822 has an active-high RESET output.
The rese...


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