SR1

UDFN6 (1.00 x 1.45 mm) SR1 4 pin Smart Reset™ Datasheet - production data Applications  Wearable  Activity tracker  Smartwatch  Smartglasses Features  Operating voltage range 2 V to 5.5 V  Low supply current 1 µA  Integrated test mode  Single Smart Reset™ push-button input with fixed extended reset setup delay (tSRC) from 0.5 s to 10 s in 0.5 s steps (typ.), option with internal input pull-up resistor  Push-button controlled reset pulse duration – Option 1: fully push-button controlled, no fixed or minimum pulse width guaranteed – Option 2: defined output reset pulse duration (tREC), factory-programmed  Single reset output – Active low or active high – Push-pull or open drain with optional pullup resistor  Fixed Smart Reset input logic voltage levels  Operating temperature: -40 °C to +85 °C  UDFN6 package 1.00 mm x 1.45 mm  ECOPACK®2 (RoHS compliant, Halogen- Free) May 2014 This is information on a product in full production. DocID026048 Rev 2 1/21 www.st.com Contents Contents SR1 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Test mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Device overview . . . . ...