ATMEGA3290P-20AUR Atmel, ATMEGA3290P-20AUR Datasheet - Page 293
![MCU AVR 32K FLASH 20MHZ 64TQFP](/photos/6/70/67048/313-100-tqfp_sml.jpg)
ATMEGA3290P-20AUR
Manufacturer Part Number
ATMEGA3290P-20AUR
Description
MCU AVR 32K FLASH 20MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA3290P-20AUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
69
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K 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
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Table 26-7.
Note:
Table 26-8.
Note:
8021G–AVR–03/11
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
1. For details about these two section, see
1. Z0: should be zero for all SPM commands, byte select for the LPM instruction. See
Write Section” on page
gramming” on page 286
Read-While-Write Limit (ATmega329P/3290P)
Explanation of different variables used in
(ATmega329P/3290P)
PC[13:6]
PC[5:0]
13
5
282.
for details about the use of Z-pointer during Self-Programming.
(1)
Corresponding
Z-value
Z14:Z7
Z6:Z1
Z14
Z6
”NRWW – No Read-While-Write Section” on page 282
Most significant bit in the Program Counter. (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/seven bits PC [5:0]).
Bit in Z-register that is mapped to PCMSB. Because Z0 is not used, the
ZPCMSB equals PCMSB + 1.
Bit in Z-register 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 26-3
Pages
(1)
224
32
and the mapping to the Z-pointer
Address
0x0000 - 0x37FF
0x3800 - 0x3FFF
Description
ATmega329P/3290P
”Addressing the Flash During Self-Pro-
and
”RWW – Read-While-
293
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