ATTINY861A-MUR Atmel, ATTINY861A-MUR Datasheet - Page 288

• Manufacturer Part Number: ATTINY861A-MUR
• Description: MCU AVR 8KB FLASH 20MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY861A-MUR

• 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: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 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: *
• 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