STMicroelectronics SR2
The SR2 has two combined delayed Smart Reset™ inputs (SR0, SR1) with preset delayed Smart Reset™ setup time (tSRC). The reset output is asserted after both of the Smart Reset™ inputs were held active for the selected tSRC delay time. A 0.1 µF decoupling ceramic capacitor is 6 VCC Supply voltage recommended to be connected between VCC and VSS pins, as close to the SR2 device as possible Figure 3.APPLICATIONS
● Wearable● Activity tracker
● Smartwatch
● Smartglasses
FEATURES
● Operating voltage 1.65 V to 5.5 V● Low supply current 1.5 µA
● Integrated test mode
● Dual Smart Reset™ push-button inputs with fixed extended reset setup delay (tSRC) from 0.5 s to 10 s in 0.5 s steps (typ.), option with internal 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
● No power-on reset
● 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: 1.6 mm x 1.3 mm
● ECOPACK®2 (RoHS compliant, Halogen- Free) May 2014 This is information on a product in full production. DocID026047 Rev 2 1/22 SR2 1
DESCRIPTION
DESCRIPTION
The Smart Reset™ devices provide a useful feature that ensures inadvertent short reset push-button closures do not cause system resets.