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POR, Power-on-Reset and Supply Monitoring


The S3PORT40LP is a low-power reset circuit that provides following features:

Power-on Reset (POR) signal that monitors absolute value of three power supplies. POR signal includes programmable delay (during start-up only, brown-out has no assertion delay).

The POR includes internal Bandgap

Early Brown-out warning (EBW) signal that monitors absolute value of three power supplies.

Bypass Mode (BM) that enables complete override of POR signal putting the IP into low-power sleep mode,

Falling-edge-sensitive reset-signal impulse generator to notify external debug tools about reset condition from within the chip,

Test mode for easier on-chip debugging.

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