ATMEGA16A-MUR Atmel, ATMEGA16A-MUR Datasheet - Page 345

• Manufacturer Part Number: ATMEGA16A-MUR
• Description: MCU AVR 16KB FLASH 16MHZ 44QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16A-MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 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

Table of Contents
1
2
3
4
5
6
7
8
8154B–AVR–07/09
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 3
Resources ................................................................................................. 7
Data Retention .......................................................................................... 7
About Code Examples ............................................................................. 7
AVR CPU ................................................................................................... 8
AVR Memories ........................................................................................ 16
System Clock and Clock Options ......................................................... 24
2.1
2.2
6.1
6.2
6.3
6.4
6.5
6.6
6.7
7.1
7.2
7.3
7.4
7.5
7.6
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
Block Diagram ...................................................................................................4
Pin Descriptions .................................................................................................6
Overview ............................................................................................................8
ALU – Arithmetic Logic Unit ...............................................................................9
Status Register ..................................................................................................9
General Purpose Register File ........................................................................11
Stack Pointer ...................................................................................................12
Instruction Execution Timing ...........................................................................13
Reset and Interrupt Handling ...........................................................................14
Overview ..........................................................................................................16
In-System Reprogrammable Flash Program Memory .....................................16
SRAM Data Memory ........................................................................................17
EEPROM Data Memory ..................................................................................18
I/O Memory ......................................................................................................19
Register Description ........................................................................................19
Clock Systems and their Distribution ...............................................................24
Clock Sources .................................................................................................25
Default Clock Source .......................................................................................25
Crystal Oscillator .............................................................................................26
Low-frequency Crystal Oscillator .....................................................................27
External RC Oscillator .....................................................................................28
Calibrated Internal RC Oscillator .....................................................................29
External Clock .................................................................................................30
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