SP809 Overview
The SP809 is a low power mic roproc essor (μP) supervisory circuit used to monitor power supplies in μP and digital systems. It provides applications with benefits of circuit reliability and low cost by eliminating ext ernal ponents. If the VCC supply voltage falls below preset threshold then a reset signal is asserted for at least 140ms after VCC has risen above the reset threshold.
SP809 Key Features
- Ultra Low Supply Current 1µA (typ)
- Guaranteed Reset valid to VCC = 0.9V
- 140ms Power-On Reset Pulse Width
- Internally Fixed Threshold
- 1.5% Voltage Threshold Tolerance
- 3 Pin SOT-23 Package
