ATTINY44A-CCUR Atmel, ATTINY44A-CCUR Datasheet - Page 282

• Manufacturer Part Number: ATTINY44A-CCUR
• Description: MCU AVR 4KB FLASH 20MHZ 15UFBGA
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY44A-CCUR

• 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: 12
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ii
ATtiny24A/44A/84A
8
9
10 I/O Ports .................................................................................................. 53
11 8-bit Timer/Counter0 with PWM ............................................................ 68
12 16-bit Timer/Counter1 ............................................................................ 85
System Control and Reset .................................................................... 38
Interrupts ................................................................................................ 47
7.1
7.2
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
12.1
12.2
12.3
12.4
Sleep Modes ....................................................................................................33
Software BOD Disable .....................................................................................34
Power Reduction Register ...............................................................................35
Minimizing Power Consumption ......................................................................35
Register Description ........................................................................................36
Resetting the AVR ...........................................................................................38
Reset Sources .................................................................................................39
Internal Voltage Reference ..............................................................................41
Watchdog Timer ..............................................................................................41
Register Description ........................................................................................44
Interrupt Vectors ..............................................................................................47
External Interrupts ...........................................................................................48
Register Description ........................................................................................50
Ports as General Digital I/O .............................................................................54
Alternate Port Functions ..................................................................................58
Register Description ........................................................................................66
Features ..........................................................................................................68
Overview ..........................................................................................................68
Clock Sources .................................................................................................69
Counter Unit ....................................................................................................69
Output Compare Unit .......................................................................................70
Compare Match Output Unit ............................................................................72
Modes of Operation .........................................................................................73
Timer/Counter Timing Diagrams .....................................................................77
Register Description ........................................................................................79
Features ..........................................................................................................85
Overview ..........................................................................................................85
Timer/Counter Clock Sources .........................................................................87
Counter Unit ....................................................................................................87
8183C–AVR–03/11