ATTINY44A-SSN Atmel, ATTINY44A-SSN Datasheet - Page 281
![IC MCU AVR 4KB FLASH 20MHZ 14SOI](/photos/7/39/73946/313-14-soic_sml.jpg)
ATTINY44A-SSN
Manufacturer Part Number
ATTINY44A-SSN
Description
IC MCU AVR 4KB FLASH 20MHZ 14SOI
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY44A-SSN
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
14-SOIC (3.9mm Width), 14-SOL
Processor Series
ATTINY4x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
12
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Table of Contents
8183C–AVR–03/11
1
2
3
4
5
6
7
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 4
General Information ................................................................................. 6
CPU Core .................................................................................................. 7
Memories ................................................................................................ 15
Clock System ......................................................................................... 24
Power Management and Sleep Modes ................................................. 33
1.1
3.1
3.2
3.3
3.4
3.5
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
5.1
5.2
5.3
5.4
5.5
6.1
6.2
6.3
6.4
6.5
Pin Descriptions .................................................................................................3
Resources .........................................................................................................6
Code Examples .................................................................................................6
Capacitive Touch Sensing .................................................................................6
Data Retention ...................................................................................................6
Disclaimer ..........................................................................................................6
Architectural Overview .......................................................................................7
ALU – Arithmetic Logic Unit ...............................................................................8
Status Register ..................................................................................................8
General Purpose Register File ..........................................................................9
Stack Pointer ...................................................................................................10
Instruction Execution Timing ...........................................................................10
Reset and Interrupt Handling ...........................................................................11
Register Description ........................................................................................13
In-System Re-programmable Flash Program Memory ....................................15
SRAM Data Memory ........................................................................................15
EEPROM Data Memory ..................................................................................16
I/O Memory ......................................................................................................20
Register Description ........................................................................................20
Clock Subsystems ...........................................................................................24
Clock Sources .................................................................................................25
System Clock Prescaler ..................................................................................30
Clock Output Buffer .........................................................................................30
Register Description ........................................................................................31
ATtiny24A/44A/84A
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