ATTINY261-20MUR Atmel, ATTINY261-20MUR Datasheet - Page 238
ATTINY261-20MUR
Manufacturer Part Number
ATTINY261-20MUR
Description
IC MCU AVR 2K FLASH 20MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY261-20MUR
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-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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ATtiny261/461/861
8
9
10 I/O Ports .................................................................................................. 55
11 Timer/Counter0 ...................................................................................... 71
12 Timer/Counter1 ...................................................................................... 89
System Control and Reset .................................................................... 41
Interrupts ................................................................................................ 50
7.2
7.3
7.4
8.1
8.2
8.3
8.4
9.1
9.2
9.3
10.1
10.2
10.3
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
11.10
12.1
12.2
12.3
12.4
12.5
12.6
Power Reduction Register ...............................................................................37
Minimizing Power Consumption ......................................................................37
Register Description ........................................................................................39
Reset Sources .................................................................................................42
Internal Voltage Reference ..............................................................................44
Watchdog Timer ..............................................................................................44
Register Description ........................................................................................47
Interrupt Vectors ..............................................................................................50
External Interrupts ...........................................................................................51
Register Description ........................................................................................52
Ports as General Digital I/O .............................................................................56
Alternate Port Functions ..................................................................................60
Register Description ........................................................................................69
Features ..........................................................................................................71
Overview ..........................................................................................................71
Clock Sources .................................................................................................72
Counter Unit ....................................................................................................74
Input Capture Unit ...........................................................................................75
Output Compare Unit .......................................................................................76
Modes of Operation .........................................................................................77
Timer/Counter Timing Diagrams .....................................................................79
Accessing Registers in 16-bit Mode ................................................................80
Register Description ........................................................................................84
Features ..........................................................................................................89
Overview ..........................................................................................................89
Clock Sources .................................................................................................92
Counter Unit ....................................................................................................93
Output Compare Unit .......................................................................................94
Dead Time Generator ......................................................................................96
2588E–AVR–08/10
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