Adjustable Hysteresis in Microprocessor-Reset ICs

Schlaepfer, Eric
July 2008
Portable Design;Jul2008, Vol. 14 Issue 7, p41
The article presents the design of an adjustable hysteresis in three-pin microprocessor-reset integrated circuits. The device monitors a single power supply rail and it provides a system reset signal in response to undervoltage conditions. The article offers diagram for a fixed hysteresis, which the voltage difference between rising and failing thresholds on VCC. The design considers a microprocessor-reset integrated circuits with 3.08 voltage threshold and pull-up resistors of 10 kilo-amperes.


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