AS1910

www.DataSheet4U.com AS1910 - AS1915 D u a l - Vo l ta g e M i c r o p r o c e s s o r S u p e r v i s o r y C i r c u i ts w i t h M a n u a l R e s e t a n d Wa t c h d o g D a ta S he e t 1 General Description The AS1910 - AS1915 microprocessor supervisory circuits were designed to generate a reset when one of the two monitored supply voltages falls below a factorytrimmed threshold, and to maintain the reset for a minimum timeout period when both supplies are above their reset thresholds. Guaranteed to be in the correct state for VCC higher than +1.0V, these devices are ideal for multiple-voltage systems with strict monitoring requirements. The AS1913/AS1914/AS1915 feature factory-trimmed thresholds to monitor a primary voltage between 1.8 and 3.6V, and a secondary voltage between 0.9 and 2.5V. For the AS1910/AS1911/AS1912, a secondary monitoring voltage can be user-adjusted via an external resistor divider down to 0.6V. The devices are available with the reset output types listed in Table 1. Table 1. Standard Products Model AS1910/AS1913 AS1911/AS1914 AS1912/AS1915 Reset Output Type Active-Low Push/Pull Active-High Push/Pull Active-Low Open-Drain 2 Key Features ! ! Primary VCC Supervisory Range: +1.8 to +3.6V Secondary VCC Supervisory Range: +0.9 to +2.5V (AS1913/AS1914/AS1915) User-Adjustable Threshold Down to +0.63V (AS1910/AS1911/AS1912) Guaranteed Reset Valid Down to VCC = +1.0V Reset Timeout Delay: 215ms Manual Reset Input Three Reset Output Types - Active-High P...