ATTINY261A-SU Atmel, ATTINY261A-SU Datasheet - Page 288

• Manufacturer Part Number: ATTINY261A-SU
• Description: IC, MCU, 8BIT, 2K FLASH, 20SOIC
• Manufacturer: Atmel

Specifications of ATTINY261A-SU

• Controller Family/series: ATtiny
• No. Of I/o's: 16
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 128Byte
• Cpu Speed: 20MHz
• No.: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 2KB
• Oscillator Type: External, Internal
• Rohs Compliant: Yes

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