ATMEGA32U4-MUR Atmel, ATMEGA32U4-MUR Datasheet - Page 345
ATMEGA32U4-MUR
Manufacturer Part Number
ATMEGA32U4-MUR
Description
MCU AVR 16K FLASH 16MHZ 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16U4-MU.pdf
(433 pages)
Specifications of ATMEGA32U4-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
26
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA32U4-MUR
Manufacturer:
UCC
Quantity:
1 001
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7766F–AVR–11/10
Table 27-10. Explanation of different variables used in
Note:
Note:
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
1. Z0: should be zero for all SPM commands, byte select for the (E)LPM instruction.
See
pointer during Self-Programming.
“Addressing the Flash During Self-Programming” on page 337
pointer
PC[13:6]
PC[5:0]
13
6
Corresponding
Z-value
Z14:Z7
Z6:Z1
Z14
Z7
(1)
Description
Most significant bit in the Program Counter. (The
Program Counter is 14 bits PC[13:0])
Most significant bit which is used to address the
words within one page (64 words in a page requires
six bits PC [5:0]).
Bit in Z-pointer that is mapped to PCMSB. Because
Z0 is not used, the ZPCMSB equals PCMSB + 1.
Bit in Z-pointer that is mapped to PCMSB. Because
Z0 is not used, the ZPAGEMSB equals PAGEMSB +
1.
Program Counter page address: Page select, for
Page Erase and Page Write
Program Counter word address: Word select, for
filling temporary buffer (must be zero during Page
Write operation)
Figure 27-4
ATmega16/32U4
and the mapping to the Z-
for details about the use of Z-
345
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