ATTINY261-20MU Atmel, ATTINY261-20MU Datasheet - Page 64
ATTINY261-20MU
Manufacturer Part Number
ATTINY261-20MU
Description
IC MCU AVR 2K FLASH 20MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY261-20MU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Processor Series
ATTINY2x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
2-Wire, SPI, USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
2
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
10 bit, 11 Channel
Package
32MLF EP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
20 MHz
Operating Supply Voltage
3.3|5 V
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRBC100 - REF DESIGN KIT BATTERY CHARGER770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATSTK505 - ADAPTER KIT FOR 14PIN AVR MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY261-20MU
Manufacturer:
AVNET
Quantity:
20 000
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ATtiny261/461/861
• Port A, Bit 5 – ADC4/AIN2/PCINT5
• Port A, Bit 4 – ADC3/ICP0/PCINT4
• Port A, Bit 3 – AREF/PCINT3
• Port A, Bit 2 – ADC2/INT1/USCK/SCL/PCINT2
• Port A, Bit 1 – ADC1/DO/PCINT1
• Port A, Bit 0 – ADC0/DI/SDA/PCINT0
• ADC4: Analog to Digital Converter, Channel 4.
• AIN2: Analog Comparator Input. Configure the port pin as input with the internal pull-up
• PCINT5: Pin Change Interrupt source 5.
• ADC3: Analog to Digital Converter, Channel 3.
• ICP0: Timer/Counter0 Input Capture Pin.
• PCINT4: Pin Change Interrupt source 4.
• AREF: External analog reference for ADC. Pullup and output driver are disabled on PA3
• PCINT3: Pin Change Interrupt source 3.
• ADC2: Analog to Digital Converter, Channel 2.
• INT1: The PA2 pin can serve as an External Interrupt source 1.
• USCK: Three-wire mode Universal Serial Interface Clock.
• SCL: Two-wire mode Serial Clock for USI Two-wire mode.
• PCINT2: Pin Change Interrupt source 2.
• ADC1: Analog to Digital Converter, Channel 1.
• DO: Three-wire mode Universal Serial Interface Data output. Three-wire mode Data output
• PCINT1: Pin Change Interrupt source 1.
• ADC0: Analog to Digital Converter, Channel 0.
• DI: Data Input in USI Three-wire mode. USI Three-wire mode does not override normal port
• SDA: Two-wire mode Serial Interface Data.
• PCINT0: Pin Change Interrupt source 0.
switched off to avoid the digital port function from interfering with the function of the Analog
Comparator.
when the pin is used as an external reference or internal voltage reference with external
capacitor at the AREF pin.
overrides PORTA1 value and it is driven to the port when data direction bit DDA1 is set.
PORTA1 still enables the pull-up, if the direction is input and PORTA1 is set.
functions, so pin must be configure as an input for DI function.
2588E–AVR–08/10
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