ATTINY261A-MN Atmel, ATTINY261A-MN Datasheet - Page 288

• Manufacturer Part Number: ATTINY261A-MN
• Description: IC MCU AVR 2K FLASH 32QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY261A-MN

• 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: 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): 1.8 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: ATtiny
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 128 B, 256 B, 512 B
• Interface Type: SPI, USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 105 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ii
ATtiny261A/461A/861A
8
9
10 I/O Ports .................................................................................................. 53
11 Timer/Counter0 ...................................................................................... 69
12 Timer/Counter1 ...................................................................................... 87
System Control and Reset .................................................................... 39
Interrupts ................................................................................................ 48
7.3
7.4
7.5
8.1
8.2
8.3
8.4
8.5
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
Power Reduction Register ...............................................................................36
Minimizing Power Consumption ......................................................................36
Register Description ........................................................................................37
Resetting the AVR ...........................................................................................39
Reset Sources .................................................................................................40
Internal Voltage Reference ..............................................................................42
Watchdog Timer ..............................................................................................42
Register Description ........................................................................................45
Interrupt Vectors ..............................................................................................48
External Interrupts ...........................................................................................49
Register Description ........................................................................................50
Ports as General Digital I/O .............................................................................54
Alternate Port Functions ..................................................................................58
Register Description ........................................................................................67
Features ..........................................................................................................69
Overview ..........................................................................................................69
Clock Sources .................................................................................................70
Counter Unit ....................................................................................................72
Input Capture Unit ...........................................................................................73
Output Compare Unit .......................................................................................74
Modes of Operation .........................................................................................75
Timer/Counter Timing Diagrams .....................................................................77
Accessing Registers in 16-bit Mode ................................................................78
Register Description ........................................................................................82
Features ..........................................................................................................87
Overview ..........................................................................................................87
Clock Sources .................................................................................................90
Counter Unit ....................................................................................................91
Output Compare Unit .......................................................................................92
8197B–AVR–01/10