ATTINY20-XU Atmel, ATTINY20-XU Datasheet - Page 53

• Manufacturer Part Number: ATTINY20-XU
• Description: MCU AVR 2KB FLASH 12MHZ 14TSSOP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY20-XU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: I²C, SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 12
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: ATtiny
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: SPI, TWI
• Maximum Clock Frequency: 12 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 2
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

8235B–AVR–04/11
• Port A, Bit 2 – ADC2/AIN1/PCINT2
• Port A, Bit 3 – ADC3/PCINT3
• Port A, Bit 4 – ADC4/PCINT4
• Port A, Bit 5 – ADC5/PCINT5
• Port A, Bit 6 – ADC6/SS/PCINT6
• Port A, Bit 7 – ADC7/OC0B/ICP1/T1/SCL/SCK/PCINT7
• ADC2: Analog to Digital Converter, Channel 2
• AIN1: Analog Comparator Negative Input. Configure the port pin as input with the internal
• PCINT2: Pin Change Interrupt source 2. The PA2 pin can serve as an external interrupt
• ADC3: Analog to Digital Converter, Channel 3
• PCINT3: Pin Change Interrupt source 3. The PA3 pin can serve as an external interrupt
• ADC4: Analog to Digital Converter, Channel 4
• PCINT4: Pin Change Interrupt source 4. The PA4 pin can serve as an external interrupt
• ADC5: Analog to Digital Converter, Channel 5
• PCINT5: Pin Change Interrupt source 5. The PA5 pin can serve as an external interrupt
• ADC6: Analog to Digital Converter, Channel 6
• SS: Slave Select Input. Regardless of DDA6, this pin is automatically configured as an input
• PCINT6: Pin Change Interrupt source 6. The PA6 pin can serve as an external interrupt
• ADC7: Analog to Digital Converter, Channel 7
• OC0B: Output Compare Match output. The PA7 pin can serve as an external output for the
• ICP1: Input Capture Pin. The PA7 pin can act as an Input Capture Pin for Timer/Counter1.
• T1: Timer/Counter1 counter source.
• SCL: TWI Clock. The pin is disconnected from the port and becomes the serial clock for the
• SCK: SPI Master Clock Output / Slave Clock Input. Regardless of DDA7, this pin is
• PCINT7: Pin Change Interrupt source 7. The PA7 pin can serve as an external interrupt
pull-up switched off to avoid the digital port function from interfering with the function of the
Analog Comparator.
source for pin change interrupt 0.
source for pin change interrupt 0.
source for pin change interrupt 0.
source for pin change interrupt 0.
when SPI is enabled as a slave. The data direction of this pin is controlled by DDA6 when SPI
is enabled as a master.
source for pin change interrupt 0.
Timer/Counter0 Compare Match B. The pin has to be configured as an output (DDA7 set
(one)) to serve this function. This is also the output pin for the PWM mode timer function.
TWI when TWEN in TWSCRA is set. In this mode of operation, the pin is driven by an open
drain driver with slew rate limitation and a spike filter.
automatically configured as an input when SPI is enabled as a slave. The data direction of
the pin is controlled by DDA7 when SPI is enabled as a master.
source for pin change interrupt 0.
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ATtiny20
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