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APX824 Datasheet(PDF) 6 Page - Diodes Incorporated |
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APX824 Datasheet(HTML) 6 Page - Diodes Incorporated |
6 / 12 page APX823/APX824/APX825A PROCESSOR SUPERVISORY CIRCUITS APX823/APX824/APX825A Rev. 3 6 of 12 FEBRUARY 2009 www.diodes.com © Diodes Incorporated Timing requirements (at RL=1mΩ, CL=50pF, TA=25 oC) Symbol Parameter Test Conditions Min Typ. Max Unit tW Pulse Width at MR VCC> VTH-+0.2V, VIL=0.3 × VCC, VIH=0.7× VCC 100 - - ns at WDI VCC> VTH-+0.2V, VIL=0.3 × VCC, VIH=0.7× VCC 50 - - ns Switching Characteristics (at RL=1mΩ, CL=50pF, TA=25 oC) Symbol Parameter Test Conditions Min Typ. Max Unit ttout Watchdog Time Out APX823/APX824/APX825A VCC> VTH-+0.2V, See timing diagram 1.12 1.6 2.4 s td Delay Time APX823/APX824/APX825A VCC> VTH-+0.2V, See timing diagram 140 200 280 ms tPHL Propagation (Delay) Time, High-to-low-level Output MR to RESET delay (APX823/APX825A) VCC> VTH-+0.2V, VIL=0.3 × VCC, VIH=0.7× VCC - - 0.1 μs VCC to RESET delay VIL= VTH--0.2V, VIH= VTH-+0.2V - - 25 μs tPLH Propagation (Delay) Time, Low-to-high-level Output MR to RESET delay (APX824/APX825A) VCC> VTH-+0.2V, VIL=0.3 × VCC, VIH=0.7× VCC - - 0.1 μs VCC to RESET delay (APX824/APX825A) VIL= VTH--0.2V, VIH= VTH-+0.2V - - 25 μs |
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