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MM1099AS Datasheet(PDF) 2 Page - Mitsumi Electronics, Corp. |
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MM1099AS Datasheet(HTML) 2 Page - Mitsumi Electronics, Corp. |
2 / 7 page MITSUMI System Reset (Built-in Watch Dog Timer) MM1099 Pin Description Pin No. Pin name Function 1 TC 2 N.C 3 CK 4 GND 5 VCC 6 RCT 7 VS 8 RESET Variable terminals TWD, TWR and TPR TPR (mS) = 5000 CT (µF) The time for TWD, TWR and TPR to be TWD (mS) = 500 CT (µF) determined by the external capacitor. TWR(mS) = 100 CT (µF) Clock input terminal Inputs the clock from the logic system. Ground terminal Voltage detection MM1099A 3.2V MM1099B 4.2V Watchdog timer stop pin Operation modes: Operation OPEN, Stop connect to GND Detect voltage variable terminal Reset output pin (low output) Absolute Maximum Ratings Item Symbol Rating Units Power supply voltage VCC max. -0.3~+10 V CK pin input voltage VCK -0.3~VCC+0.3 ( < = +10) V VS pin input voltage VVS -0.3~VCC+0.3 ( < = +10) V Voltage applied to RCT pin VRCT -0.3~VCC+0.3 ( < = +10) V Voltage applied to RESET ---------------------------------------------------- pin VOH -0.3~VCC+0.3 ( < = +10) V Allowable loss Pd 300 mW Storage temperature TSTG -40~+125 °C Recommended Operating Conditions Item Symbol Rating Units Power supply voltage VCC +2.2~+7.0 V RESET ---------------------------------------------------- sync current IOL 0~1.0 mA Clock monitoring time setting TWD 0.1~1000 mS Clock rise and fall times tFC, tRC <100 µS TC pin capacitance CT 0.0002~2 µF Operating temperature TOP -25~+75 °C |
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