STMicroelectronics SR1开关IC

STMicroelectronics SR1开关IC提供一个有用的特性，即该特性确保无意间的短暂复位按钮闭合不会造成系统复位。这是通过设定一个延长的智能复位输入延迟时间（t_SRC）来实现的，可确保安全复位，省去一个具体的专用复位按钮。SR1有一个智能复位（SR）输入，可预置延迟的智能复位设定时间（t_SRC)。智能复位输入保持有效状态选定的t_SRC 延迟时间后，复位输出（RST）被置为有效。RST输出保持被置为有效状态直至SR输入进入无效逻辑电平（即固定和最小复位脉冲宽度都未设定）、或者输出复位脉冲持续时间保持固定一段长为t_REC 的时间（即出厂设置）。该器件可工作于宽幅的V_CC 范围：从2.0V到5.5V。

The STMicroelectronics SR1 Smart Reset Switch is offered in a 1.00mm x 1.45mm UDFN6 package.

特性

Operating voltage range 2.0V to 5.5V
Low supply current 1µA
Integrated test mode
Single Smart Reset push-button input with fixed extended reset setup delay (t_SRC) from 0.5s to 10s in 0.5s 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 (t_REC), factory-programmed

Single reset output
- Active low or active high
- Push-pull or open drain with optional pull-up resistor
Fixed Smart Reset input logic voltage levels
Operating temperature: -40°C to +85°C
1.00mm x 1.45mm UDFN6 package
ECOPACK2 (RoHS compliant, Halogen-Free)