ATMega chip full datasheet - UCSD Department of Physics

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ATmega48A/PA/88A/PA/168A/PA/328/PFigure 28-8.Serial Programming Instruction exampleSerial Programming InstructionLoad Program Memory Page (High/Low Byte)/Load EEPROM Memory Page (page access)Byte 1 Byte 2 Byte 3 Byte 4Adr MSBAdr LSBBit 15 B 0Write Program Memory Page/Write EEPROM Memory PageByte 1 Byte 2 Byte 3 Byte 4Adr MSB Adr LSBBit 15 B 0Page OffsetPage BufferPage 0Page 1Page 2Page NumberPage N-128.8.4 SPI Serial Programming CharacteristicsProgram Memory/EEPROM MemoryFigure 28-9.Serial Programming WaveformsSERIAL DATA INPUT(MOSI)MSBLSBSERIAL DATA OUTPUT(MISO)MSBLSBSERIAL CLOCK INPUT(SCK)SAMPLEFor characteristics of the SPI module see “SPI Timing Characteristics” on page 325.8271D–AVR–05/11316
ATmega48A/PA/88A/PA/168A/PA/328/P29. Electrical Characteristics29.1 Absolute Maximum Ratings*Operating Temperature.................................. -55°C to +125°CStorage Temperature ..................................... -65°C to +150°CVoltage on any Pin except RESETwith respect to Ground ................................-0.5V to V CC +0.5VVoltage on RESET with respect to Ground......-0.5V to +13.0V*NOTICE: Stresses beyond those listed under “AbsoluteMaximum Ratings” may cause permanent damageto the device. This is a stress rating only andfunctional operation of the device at these orother conditions beyond those indicated in theoperational sections of this specification is notimplied. Exposure to absolute maximum ratingconditions for extended periods may affectdevice reliability.Maximum Operating Voltage ............................................ 6.0VDC Current per I/O Pin ................................................ 40.0mADC Current V CC and GND Pins................................. 200.0mA29.2 DC CharacteristicsTable 29-1. Common DC characteristics T A = -40°C to 85°C, V CC = 1.8V to 5.5V (unless otherwise noted)Symbol Parameter Condition Min. Typ. Max. UnitsV ILV IHV IL1V IH1V IL2V IH2V IL3V IH3Input Low Voltage, exceptXTAL1 and RESET pinInput High Voltage, exceptXTAL1 and RESET pinsInput Low Voltage,XTAL1 pinInput High Voltage,XTAL1 pinInput Low Voltage,RESET pinInput High Voltage,RESET pinInput Low Voltage,RESET pin as I/OInput High Voltage,RESET pin as I/OV OLOutput Low Voltage (4)except RESET pinV OHOutput High Voltage (3)except Reset pinI ILI IHInput LeakageCurrent I/O PinInput LeakageCurrent I/O PinV CC = 1.8V - 2.4VV CC = 2.4V - 5.5VV CC = 1.8V - 2.4VV CC = 2.4V - 5.5V-0.5-0.50.7V CC(2)0.6V CC(2)0.2V CC(1)0.3V CC(1) VV CC + 0.5V CC + 0.5V CC = 1.8V - 5.5V -0.5 0.1V CC(1)VV CC = 1.8V - 2.4VV CC = 2.4V - 5.5V0.8V CC(2)0.7V CC(2)V CC + 0.5V CC + 0.5V CC = 1.8V - 5.5V -0.5 0.1V CC(1)V CC = 1.8V - 5.5V 0.9V CC(2)V CC + 0.5 VV CC = 1.8V - 2.4VV CC = 2.4V - 5.5VV CC = 1.8V - 2.4VV CC = 2.4V - 5.5VI OL = 20 mA, V CC = 5VI OL = 10 mA, V CC = 3VI OH = -20 mA, V CC = 5VI OH = -10 mA, V CC = 3VV CC = 5.5V, pin low(absolute value)V CC = 5.5V, pin high(absolute value)-0.5-0.50.7V CC(2)0.6V CC(2)4.22.3VVV0.2V CC(1)0.3V CC(1) VV CC + 0.5V CC + 0.50.90.6VVV1 µA1 µA8271D–AVR–05/11317
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Atmel Corporation2325 Orchard Parkw
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ATMega chip full datasheet - UCSD Department of Physics

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