ATTINY84-20SSU Atmel, ATTINY84-20SSU Datasheet - Page 62

• Manufacturer Part Number: ATTINY84-20SSU
• Description: MCU AVR 8K ISP FLASH 2.7V 14SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY84-20SSU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 12
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 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
• Processor Series: ATTINY8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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ATtiny24/44/84
• Port A, Bit 1 – ADC1/AIN0/PCINT1
• Port A, Bit 2 – ADC2/AIN1/PCINT2
• Port A, Bit 3 – ADC3/T0/PCINT3
• Port A, Bit 4 – ADC4/USCK/SCL/T1/PCINT4
• Port A, Bit 5 – ADC5/DO/MISO/OC1B/PCINT5
• ADC1: Analog to Digital Converter, Channel 1
• AIN0: Analog Comparator Positive Input. Configure the port pin as input with the internal pull-
• PCINT1: Pin Change Interrupt source 1. The PA1 pin can serve as an external interrupt
• 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
• T0: Timer/Counter0 counter source.
• PCINT3: Pin Change Interrupt source 3. The PA3 pin can serve as an external interrupt
• ADC4: Analog to Digital Converter, Channel 4
• USCK: Three-wire mode Universal Serial Interface Clock.
• SCL: Two-wire mode Serial Clock for USI Two-wire mode.
• T1: Timer/Counter1 counter source.
• PCINT4: Pin Change Interrupt source 4. The PA4 pin can serve as an external interrupt
• ADC5: Analog to Digital Converter, Channel 5
• DO: Data Output in USI Three-wire mode. Data output (DO) overrides PORTA5 value and it
• MISO: Master Data input, Slave Data output pin for SPI channel. When the SPI is enabled as
• OC1B: Output Compare Match output: The PA5 pin can serve as an external output for the
• PCINT5: Pin Change Interrupt source 5. The PA5 pin can serve as an external interrupt
up switched off to avoid the digital port function from interfering with the function of the
Analog Comparator.
source for pin change interrupt 0.
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.
is driven to the port when the data direction bit DDA5 is set (one). However the PORTA5 bit
still controls the pullup, enabling pullup if direction is input and PORTA5 is set(one).
a Master, this pin is configured as an input regardless of the setting of DDA5. When the SPI is
enabled as a Slave, the data direction of this pin is controlled by DDA5. When the pin is
forced by the SPI to be an input, the pull-up can still be controlled by the PORTA5 bit.
Timer/Counter1 Compare Match B. The PA5 pin has to be configured as an output (DDA5 set
(one)) to serve this function. The OC1B pin is also the output pin for the PWM mode timer
function.
source for pin change interrupt 0.
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8006K–AVR–10/10