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MAX6854 데이터시트(PDF) 6 Page - Maxim Integrated Products |
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MAX6854 데이터시트(HTML) 6 Page - Maxim Integrated Products |
6 / 17 page Nanopower µP Supervisory Circuits with Manual Reset and Watchdog Timer 6 _______________________________________________________________________________________ MAX6854/MAX6855/MAX6856 Pin Description PIN MAX6854/ MAX6856 MAX6855 NAME FUNCTION 1— RESET Active-Low Open-Drain or Push-Pull Reset Output. RESET transitions from high to low when VCC drops below the selected reset threshold or MR is pulled low. RESET remains low for the reset timeout period after VCC exceeds the device reset threshold and MR deasserts. Push-pull RESET outputs are referenced to VCC. Open-drain RESET outputs require an external pullup resistor. 2, 4 2, 4 GND Ground. Connect all GND inputs to the same potential. 33 MR Active-Low Manual Reset Input. Drive MR low to initiate a reset. The reset output remains asserted while MR is held low and for the reset timeout period after MR transitions high. Leave MR unconnected or connect to VCC if unused. MR is internally pulled up to VCC through 10kΩ. 55 VCC Supply Voltage. Input for VCC reset monitor. For noisy systems, bypass VCC with a 0.1µF capacitor to GND. —1 RESET Active-High Push-Pull Reset Output. RESET transitions from low to high when VCC drops below the selected reset threshold or MR is pulled low. RESET remains high for the reset timeout period after VCC exceeds the device reset threshold and MR deasserts. RESET is referenced to VCC. MAX6858/MAX6860 Pin Description PIN MAX6858/ MAX6860 NAME FUNCTION 1, 2 I.C. Internally Connected. For increased noise immunity, connect I.C. to GND. 3 GND Ground 4 RESET Active-Low Open-Drain or Push-Pull Reset Output. RESET transitions from high to low when VCC drops below the selected reset threshold. RESET remains low for the reset timeout period after VCC exceeds the device reset threshold. Push-pull RESET outputs are referenced to VCC. Open- drain RESET outputs require an external pullup resistor. 5VCC Supply Voltage. Input for VCC reset monitor. For noisy systems, bypass VCC with a 0.1µF capacitor to GND. |
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