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AT90LS4433-4AI 데이터시트(PDF) 22 Page - ATMEL Corporation |
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AT90LS4433-4AI 데이터시트(HTML) 22 Page - ATMEL Corporation |
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22 / 126 page ![]() 22 AT90S/LS4433 1042H–AVR–04/03 Figure 24. Reset Logic Note: 1. The Power-on Reset will not work unless the supply voltage has been below V POT (falling). Table 4. Reset Characteristics (V CC = 5.0V) Symbol Parameter Min Typ Max Units V POT (1) Power-on Reset Threshold Voltage, rising 1.0 1.4 1.8 V Power-on Reset Threshold Voltage, falling 0.4 0.6 0.8 V V RST RESET Pin Threshold Voltage 0.6 V CC V V BOT Brown-out Reset Threshold Voltage 2.2 (BODLEVEL=1) 2.7 (BODLEVEL=1) 3.0 (BODLEVEL=1) V 3.5 (BODLEVEL=0) 4.0 (BODLEVEL=0) 4.5 (BODLEVEL=0) MCU Status Register (MCUSR) Brown-out Reset Circuit Power-on Reset Circuit BODEN BODLEVEL Delay Counters CKSEL[2:0] CK Full DATA BUS Reset Circuit Watchdog Timer On-chip RC Oscillator RESET VCC |
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