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ATMEGA8L-8AC Datasheet(PDF) 36 Page - ATMEL Corporation |
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ATMEGA8L-8AC Datasheet(HTML) 36 Page - ATMEL Corporation |
36 / 303 page 36 ATmega8(L) 2486M–AVR–12/03 Figure 14. 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 V CC drops to a voltage where correct operation of the microcontroller is no longer guaranteed. The test is performed using BODLEVEL = 1 for ATmega8L and BODLEVEL = 0 for ATmega8. BODLEVEL = 1 is not applicable for ATmega8. Table 15. Reset Characteristics Symbol Parameter Condition Min Typ Max Units VPOT Power-on Reset Threshold Voltage (rising)(1) 1.4 2.3 V Power-on Reset Threshold Voltage (falling) 1.3 2.3 V VRST RESET Pin Threshold Voltage 0.1 0.9 VCC tRST Minimum pulse width on RESET Pin 1.5 µs VBOT Brown-out Reset Threshold Voltage(2) BODLEVEL = 1 2.4 2.6 2.9 V BODLEVEL = 0 3.7 4.0 4.5 tBOD Minimum low voltage period for Brown-out Detection BODLEVEL = 1 2 µs BODLEVEL = 0 2 µs VHYST Brown-out Detector hysteresis 130 mV MCU Control and Status Register (MCUCSR) Brown-Out Reset Circuit BODEN BODLEVEL Delay Counters CKSEL[3:0] CK TIMEOUT DATA BUS Clock Generator SPIKE FILTER Pull-up Resistor Watchdog Oscillator SUT[1:0] |
Similar Part No. - ATMEGA8L-8AC |
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Similar Description - ATMEGA8L-8AC |
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