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DS1831CS датащи(PDF) 2 Page - Dallas Semiconductor |
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DS1831CS датащи(HTML) 2 Page - Dallas Semiconductor |
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2 / 14 page ![]() DS1831C/D/E 2 of 14 PIN CONFIGURATION 1IN2.5V 2.5V Power Supply Input 9 MPBRST TDWD Master Pushbutton (DS1831C/E) Watchdog Time Delay Select (DS1831D) 2 RST 2.5V 2.5V Reset Open Drain Output 10 NM12 WDS Non Maskable Interrupt 2 (DS1831C/E) Watchdog Status Output (DS1831D) 3TOL2.5V Selects 2.5V Input Tolerance 11 NM11 Non Maskable Interrupt 1 4TD2.5V Selects 2.5V Reset Time Delay 12 PBRST 3.3V PBST 3.3V Reset Pushbutton (DS1831C/E) Pushbutton Status Output (DS1831E) 5 PBRST 2.5V 2.5V Reset Pushbutton 13 TD3.3V Select 3.3V Reset Time Delay 6 IN1 Sense Input 1 14 TOL3.3V Selects 3.3V Input Tolerance 7IN2 ST Sense Input 2 (DS1831C/E) Watchdog Strobe Inputs (DS1831D) 15 RST 3.3V 3.3V Reset Open Drain Output 8 GND Ground 16 IN3.3V 3.3V Power Supply Input BLOCK DIAGRAM Figure 1 RST33V VCC TOLERANCE BIAS IN2.5V + - TIME DELAY 1.25V T.C. REFERENC E TOL2.5V GROUN VCC TOLERANCE BIAS IN3.3V TOL3.3V TIME DELAY Level Sense & Debounce MPBRS + - 100 k Ω TD2.5V TD3.3V 100 k Ω PBRST3.3V PBRST2.5V 100 k Ω + - + - IN IN NMI NMI RST2.5V |
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