ATMEGA32U2-MUR Atmel, ATMEGA32U2-MUR Datasheet - Page 16
ATMEGA32U2-MUR
Manufacturer Part Number
ATMEGA32U2-MUR
Description
MCU AVR 32K FLASH 16MHZ 32VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32U2-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
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7. AVR Memories
7.1
7799D–AVR–11/10
In-System Reprogrammable Flash Program Memory
This section describes the different memories in the ATmega8U2/16U2/32U2. The AVR archi-
tecture has two main memory spaces, the Data Memory and the Program Memory space. In
addition, the ATmega8U2/16U2/32U2 features an EEPROM Memory for data storage. All three
memory spaces are linear and regular.
The ATmega8U2/16U2/32U2 contains 8K/16K/32K bytes On-chip In-System Reprogrammable
Flash memory for program storage. Since all AVR instructions are 16 or 32 bits wide, the Flash
is organized as 4K x 16, 8K x 16. For software security, the Flash Program memory space is
divided into two sections, Boot Program section and Application Program section.
The Flash memory has an endurance of at least 100,000 write/erase cycles. The
ATmega8U2/16U2/32U2 Program Counter (PC) is 16 bits wide, thus addressing the
8K/16K/32K program memory locations. The operation of Boot Program section and associated
Boot Lock bits for software protection are described in detail in
246.
downloading using the SPI pins or the debugWIRE interface.
Constant tables can be allocated within the entire program memory address space (see the LPM
– Load Program Memory instruction description and ELPM - Extended Load Program Memory
instruction description).
Timing diagrams for instruction fetch and execution are presented in
ing” on page
“Memory Programming” on page 246
12.
contains a detailed description on Flash data serial
ATmega8U2/16U2/32U2
“Memory Programming” on page
“Instruction Execution Tim-
16
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