STM6780 Datasheet

STM6780 Dual/triple ultra-low voltage supervisor

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1.1 Active-low, push-pull reset output (RST) - STM6718/20/78/80 . . . . . . . . 7 .

Features

■ Primary supply (VCC1) monitor. Fixed (factory-programmed) reset thresholds: 4.63 V to 1.58 V
■ Secondary supply (VCC2) monitor (STM6717/18/19/20/77/78)
■ Fixed (factory-programmed) reset thresholds: 3.08 V to 0.79 V
■ Tertiary supply monitor (using externally adjustable RSTIN): 0.626 V internal reference
■ RST outputs (push-pull or open drain); state guaranteed if VCC1 or VCC2 ≥ 0.8 V
■ Reset delay time (trec) on power-up: 13.2 ms, 210 ms, 900 ms (typ)
■ Manual reset input (MR)
■ Optional delayed manual reset input (MRC) with external capacitor (STM6777/78/79/80)
■ Low supply current - 11 µA.