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ATMEGA32-16AC Datasheet(PDF) 35 Page - ATMEL Corporation |
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ATMEGA32-16AC Datasheet(HTML) 35 Page - ATMEL Corporation |
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35 / 317 page  35 ATmega32(L) 2503F–AVR–12/03 Figure 15. Reset Logic Notes: 1. The Power-on Reset will not work unless the supply voltage has been below VPOT (falling). 2. V BOT may be below nominal minimum operating voltage for some devices. For devices where this is the case, the device is tested down to V CC = VBOT during the production test. This guarantees that a Brown-out Reset will occur before VCC drops to a voltage where correct operation of the microcontroller is no longer guaranteed. The test is performed using BODLEVEL = 1 for ATmega32L and BODLEVEL = 0 for ATmega32. BODLEVEL = 1 is not applicable for ATmega32. Table 15. Reset Characteristics Symbol Parameter Condition Min Typ Max Units VPOT Power-on Reset Threshold Voltage (rising) 1.4 2.3 V Power-on Reset Threshold Voltage (falling)(1) 1.3 2.3 V VRST RESET Pin Threshold Voltage 0.1 V CC 0.9V CC V tRST Minimum pulse width on RESET Pin 1.5 µs VBOT Brown-out Reset Threshold Voltage(2) BODLEVEL = 1 2.5 2.7 3.2 V BODLEVEL = 0 3.7 4.0 4.2 tBOD Minimum low voltage period for Brown-out Detection BODLEVEL = 1 2 µs BODLEVEL = 0 2 µs V HYST Brown-out Detector hysteresis 50 mV MCU Control and Status Register (MCUCSR) BODEN BODLEVEL Delay Counters CKSEL[3:0] CK TIMEOUT DATA BUS Clock Generator SPIKE FILTER Pull-up Resistor JTAG Reset Register Watchdog Oscillator SUT[1:0] Watchdog Timer Reset Circuit Brown-out Reset Circuit Power-on Reset Circuit |
Similar Part No. - ATMEGA32-16AC |
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Similar Description - ATMEGA32-16AC |
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