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ADM809

Analog Devices
Part Number ADM809
Manufacturer Analog Devices
Description Microprocessor Supervisory Circuits
Published Mar 23, 2005
Detailed Description Data Sheet Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23 ADM803/ADM809/ADM810 FEATURES Specified over ...
Datasheet PDF File ADM809 PDF File

ADM809
ADM809

Overview
Data Sheet Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23 ADM803/ADM809/ADM810 FEATURES Specified over temperature Low power consumption: 17 μA Precision voltage monitor: 2.
5 V, 3 V, 3.
3 V, 5 V options Reset assertion down to 1 V VCC 140 ms minimum power-on reset Open-drain RESET output (ADM803) Push-pull RESET output (ADM809) Push-pull RESET output (ADM810) SC70 and SOT-23 packages APPLICATIONS Microprocessor systems Computers Controllers Intelligent instruments GENERAL DESCRIPTION The ADM803/ADM809/ADM810 supervisory circuits monitor the power supply voltage in microprocessor systems.
They provide a reset output during power-up, power-down, and brownout conditions.
On power-up, an internal timer holds reset asserted for 240 ms.
This holds the microprocessor in a reset state until conditions have stabilized.
The reset output remains operational with VCC as low as 1 V.
The ADM803 and ADM809 provide an active low reset signal (RESET), whereas the ADM810 provides an act...


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