Analogue, Mixed Signal, LSI


Pushbutton reset controllers

10 July 2013 Analogue, Mixed Signal, LSI

Texas Instruments introduced two tiny pushbutton reset controllers for space-constrained, power-sensitive applications. The dual-channel TPS3420 and TPS3421 feature low power consumption and a selectable reset time delay to improve system stability. The ICs use a long input delay to provide the intended system reset and avoid reset from short pushbutton or key presses. This reset configuration enables differentiation between software interrupts and hard system resets. The input delay is selectable at 7,5 or 12,5 seconds while the reset pulse is selectable at 400 or 800 milliseconds. The devices consume just 250 nA of quiescent current and are supplied in a 1,45 x 1,0 x 0,55 mm SON package.

EBV Electrolink, +27 (0)21 402 1940, [email protected], www.ebv.com



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