What the MAX808LEPA does in a system
The battery backup function is the distinguishing feature here: the MAX808LEPA switches to a backup battery when the main supply falls, preserving the contents of volatile memory or keeping a real-time clock running through a power outage.
140ms reset timeout — why it matters
The 140ms minimum reset timeout holds the reset line low after the supply returns above the threshold. That window lets the oscillator start and the power rails settle before the processor begins fetching instructions.
RoHS note — verify your compliance requirements
If your assembly line or end-market requires RoHS exemption-free compliance (e.g., EU RoHS for consumer goods, WEEE directives), the MAX808LEPA will not pass incoming inspection. For RoHS-required builds, look at the lead-free variant in the same family — the suffix differs. For military, aerospace, or high-reliability applications that explicitly exempt leaded solder, the non-compliant status is often acceptable or even preferred.