ATTINY44-20SSU Atmel, ATTINY44-20SSU Datasheet - Page 230

• Manufacturer Part Number: ATTINY44-20SSU
• Description: IC MCU AVR 4K FLASH 20MHZ 14SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY44-20SSU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 12
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Cpu Family: ATtiny
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 20MHz
• Interface Type: SPI/USI
• Total Internal Ram Size: 256Byte
• # I/os (max): 12
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 14
• Package Type: SOIC
• For Use With: ATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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ATtiny24/44/84
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All characterization data moved to
All Register Descriptions gathered up in separate sections at the end of each chapter.
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12-3 on page 109
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Table 19-5 on page
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Updated DC Characteristics in
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Table 20-2 on page
“Clock speed considerations” on page
“System Control and Reset” on page
Table 11-3 on page
“Fast PWM Mode” on page
Figure 12-7 on page 98
“Analog Comparator Multiplexed Input” on page
“Electrical Characteristics” on page
“Typical Characteristics” on page
“Calibrated Internal 8 MHz Oscillator” on page
“OSCCAL – Oscillator Calibration Register” on page
“Signature Bytes” on page
“Default Clock Source” on page 30
“Power Reduction Register” on page
“Temperature Measurement” on page
“Typical Characteristics” on page
“Errata” on page
Table 20-4 on page
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Table 19-12 on page
Table 18-1 on page
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“USI – Universal Serial Interface” on page
“Analog to Digital Converter” on page
“Analog to Digital Converter” on page
Table 12-5 on page
Table 19-12 on page
“ADMUX – ADC Multiplexer Selection Register” on page
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“SPI Master Operation Example” on page
“SPI Slave Operation Example” on page
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“Electrical Characteristics” on page
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Table 11-6 on page
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“Electrical Characteristics” on page
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Table 9-4 on page
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8006K–AVR–10/10
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