ATTINY44A-SSUR Atmel, ATTINY44A-SSUR Datasheet - Page 281
ATTINY44A-SSUR
Manufacturer Part Number
ATTINY44A-SSUR
Description
MCU AVR 4KB FLASH 20MHZ 14SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY24A-MU.pdf
(286 pages)
Specifications of ATTINY44A-SSUR
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
Other names
ATTINY44A-SSU SL383
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY44A-SSUR
Manufacturer:
ATMEL
Quantity:
21 500
Part Number:
ATTINY44A-SSUR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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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
i
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