AT90PWM81-16SN Atmel, AT90PWM81-16SN Datasheet - Page 318

• Manufacturer Part Number: AT90PWM81-16SN
• Description: IC MCU AVR 8K FLASH ISP 20SOIC
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM81-16SN

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SOIC (7.5mm Width)
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI
• Maximum Clock Frequency: 16 MHz
• Number Of Timers: 1
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• On-chip Dac: 10 bit, 1 Channel
• Height: 2.35 mm
• Length: 13 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Width: 7.6 mm
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table Of Contents
i
AT90PWM81
1
2
3
4
5
6
Products Configuration ..........................................................................................2
Pin Configurations .................................................................................................3
AVR CPU Core .......................................................................................................8
Memories ...............................................................................................................16
System Clock and Clock Options .........................................................................27
Power Management and Sleep Modes .................................................................44
2.1Pin Descriptions ....................................................................................................................... 6
3.1Introduction .............................................................................................................................. 8
3.2Architectural Overview ............................................................................................................ 8
3.3ALU – Arithmetic Logic Unit .................................................................................................. 9
3.4Status Register .......................................................................................................................... 9
3.5General Purpose Register File ................................................................................................ 11
3.6Stack Pointer .......................................................................................................................... 12
3.7Instruction Execution Timing ................................................................................................. 12
3.8Reset and Interrupt Handling ................................................................................................. 13
4.1In-System Reprogrammable Flash Program Memory ........................................................... 16
4.2SRAM Data Memory ............................................................................................................. 16
4.3EEPROM Data Memory ........................................................................................................ 18
4.4Fuse Bits ................................................................................................................................. 22
4.5I/O Memory ............................................................................................................................ 26
4.6General Purpose I/O Registers ............................................................................................... 26
5.1Clock Systems and their Distribution ..................................................................................... 27
5.2Clock Sources ......................................................................................................................... 28
5.3Dynamic Clock Switch ........................................................................................................... 35
5.4System Clock Prescaler .......................................................................................................... 38
5.5Register Description ............................................................................................................... 38
6.1Sleep Modes ........................................................................................................................... 44
6.2Idle Mode ............................................................................................................................... 44
6.3ADC Noise Reduction Mode ................................................................................................. 45
6.4Power-down Mode ................................................................................................................. 45
6.5Standby Mode ........................................................................................................................ 45
6.6Power Reduction Register ...................................................................................................... 45
6.7Minimizing Power Consumption ........................................................................................... 45
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