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MAX6326-T Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX6326-T Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 14 page MAX6316–MAX6322 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset 3 Maxim Integrated Note 4: This is the minimum time RESET must be held low by an external pulldown source to set the active pullup flip-flop. Note 5: Measured from RESET VOL to (0.8 x VCC), RLOAD = ∞. Note 6: WDI is internally serviced within the watchdog period if WDI is left unconnected. Note 7: The WDI input current is specified as the average input current when the WDI input is driven high or low. The WDI input is designed for a three-stated-output device with a 10µA maximum leakage current and capable of driving a maximum capac- itive load of 200pF. The three-state device must be able to source and sink at least 200µA when active. ELECTRICAL CHARACTERISTICS (continued) (VCC = 2.5V to 5.5V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS BIDIRECTIONAL RESET OUTPUT (MAX6316M/MAX6318MH/MAX6319MH) Transitional Flip-Flop Setup Time tS (Note 4) 400 ns VCC = 3.0V, CL = 120pF 333 VCC = 5.0V, CL = 200pF 333 VCC = 3.0V, CL = 250pF 666 RESET Output Rise Time (Note 5) tR VCC = 5.0V, CL = 400pF 666 ns Active Pullup Enable Threshold VPTH VCC = 5.0V 0.4 0.65 V RESET Active Pullup Current VCC = 5.0V 20 mA TA = -40°C to +85°C 4.2 4.7 5.2 RESET Pullup Resistance TA = -40°C to +125°C 3.6 4.7 5.8 k Ω OPEN-DRAIN RESET OUTPUT (MAX6320P/MAX6321HP/MAX6322HP) VCC > 1.0V, ISINK = 50µA 0.3 VCC > 1.2V, ISINK = 100µA 0.3 VCC > 2.7V, ISINK = 1.2mA 0.3 RESET Output Voltage VOL VCC > 4.5V, ISINK = 3.2mA 0.4 V Open-Drain Reset Output Leakage Current ILKG 1.0 µA WATCHDOG INPUT (MAX6316/MAX6317H/MAX6318_H/MAX6320P/MAX6321HP) MAX63_ _ _W-T 4.3 6.3 9.3 MAX63_ _ _X-T 71 102 153 ms MAX63_ _ _Y-T 1.12 1.6 2.4 Watchdog Timeout Period tWD MAX63_ _ _Z-T 17.9 25.6 38.4 s WDI Pulse Width tWDI VIL = 0.3 x VCC, VIH = 0.7 x VCC 50 ns VIL 0.3 xVCC WDI Input Threshold VIH (Note 6) 0.7 x VCC V WDI = VCC, time average 120 160 WDI Input Current (Note 7) IWDI VWDI = 0V, time average -20 -15 µA MANUAL RESET INPUT (MAX6316_/MAX6317H/MAX6319_H/MAX6320P/MAX6322HP) VIL 0.8 VIH VTH > 4.0V 2.0 VIL 0.3 xVCC MR Input Threshold VIH VTH < 4.0V 0.7 x VCC V TA = -40°C to +85°C 1 MR Input Pulse Width TA = -40°C to +125°C 1.5 µs MR Glitch Rejection 100 ns MR Pullup Resistance 35 52 75 k Ω MR to Reset Delay VCC = 5V 230 ns |
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