ATMEGA3250P-20AU Atmel, ATMEGA3250P-20AU Datasheet - Page 268
![IC MCU AVR 32K FLASH 100-TQFP](/photos/6/70/67048/313-100-tqfp_sml.jpg)
ATMEGA3250P-20AU
Manufacturer Part Number
ATMEGA3250P-20AU
Description
IC MCU AVR 32K FLASH 100-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA3250P-20AU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, 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
100-TQFP, 100-VQFP
Processor Series
ATMEGA32x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
SPI/UART/USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
69
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
For Use With
ATSTK600-TQFP100 - STK600 SOCKET/ADAPTER 100-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK504 - STARTER KIT AVR EXP MOD 100P LCD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ATMEGA3250P-16AU
ATMEGA3250P-16AU
ATMEGA3250P-16AU
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA3250P-20AU
Manufacturer:
AT
Quantity:
20 000
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24.8.13
In
Table 24-6.
Note:
Table 24-7.
Note:
Table 24-8.
Note:
8023F–AVR–07/09
Section
Read-While-Write section (RWW)
No Read-While-Write section (NRWW)
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
BOOTSZ1
Table 24-6
1
1
0
0
1. The different BOOTSZ Fuse configurations are shown in
1. For details about these two section, see
1. Z0: should be zero for all SPM commands, byte select for the LPM instruction. See
ATmega325P/3250P Boot Loader Parameters
Write Section” on page
gramming” on page 261
through
BOOTSZ0
Boot Size Configuration
Read-While-Write Limit
Explanation of different variables used in
1
0
1
0
Table
PC[13:6]
PC[5:0]
13
5
24-8, the parameters used in the description of the Self-Programming are given.
1024/ words
2048 words
Boot Size
256 words
512 words
257.
for details about the use of Z-pointer during Self-Programming.
(1)
Corresponding
(1)
Z-value
Z14:Z7
Z6:Z1
Z14
Z6
Pages
”NRWW – No Read-While-Write Section” on page 257
16
32
4
8
Application
Flash Section
0x0000-0x3EFF
0x0000-0x3DFF
0x0000-0x3BFF
0x0000-0x37FF
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 24-3
Pages
224
Figure 24-2
32
and the mapping to the Z-pointer
Boot Loader
Flash Section
0x3F00-0x3FFF
0x3E00-0x3FFF
0x3C00-0x3FFF
0x3800-0x3FFF
Address
0x0000 - 0x37FF
0x3800 - 0x3FFF
Description
ATmega325P/3250P
”Addressing the Flash During Self-Pro-
End
Application
Section
0x3EFF
0x3DFF
0x3BFF
0x37FF
and
”RWW – Read-While-
(1)
Boot Reset
Address
(Start
Boot Loader
Section)
0x3F00
0x3E00
0x3C00
0x3800
268
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