STM1818

STM1810 STM1811 STM1812 STM1813 STM1815 STM1816 STM1817 STM1818 Low power reset circuit Features ■ Precision monitoring of 3 V, 3.3 V, and 5 V supply voltages ■ Four output configurations: – Push-pull, active-high (STM1812,1817) – Push-pull, active-low (STM1810,1815) – Open-drain, active-low (STM1811,1816) – Open-drain, active-low with push-button detect (STM1813,1818) ■ Reset pulse width - 100 ms (min.) ■ Low supply current - 4 µA (typ.) ■ Guaranteed assertion down to VCC = 1.0 V (0 °C to 105 °C) ■ Factory-trimmed reset thresholds of 2.55 V, 2.88 V, 3.06 V, 4.37 V, and 4.62 V (typ.) ■ Power supply transient immunity ■ Push-button/manual reset detect (STM1813/1818) ■ Operating temperature: –40 °C to 105 °C SOT23-3 (WX) ■ ± 2.5% reset threshold accuracy: (–40 °C to 105 °C) ■ Available in the SOT23-3 package ■ Fully compatible with DS181x and MXD181x products. Table 1. Device summary Order codes 5V 3.3 V/ 3.0 V Active-low reset (push-pull) Active-low reset (open-drain) Active-high reset (push-pull) STM1810L/M STM1811L/M STM1812L/M STM1813L/M STM1815T/S/R STM1816T/S/R STM1817T/S/R STM1818T/S/R ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔(1) ✔(1) ✔ ✔ 1. Active-low RST with internal pull-up resistor. Active-low reset (open-drain, bidirectional, with MR detect) ✔ ✔ September 2010 Doc ID11464 Rev 8 1/25 www.st.com 1 Contents Contents STM1810/1811/1812/1813/1815/1816/1817/1818 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...