ATMEGA2561V-8AU Atmel, ATMEGA2561V-8AU Datasheet - Page 336
![IC AVR MCU 256K 8MHZ 64TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
ATMEGA2561V-8AU
Manufacturer Part Number
ATMEGA2561V-8AU
Description
IC AVR MCU 256K 8MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA2561V-8AU
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
256KB (128K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Processor Series
ATMEGA256x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
8 KB
Interface Type
2-Wire/SPI/USART
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
54
Number Of Timers
6
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
For Use With
ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-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 SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA2561V-8AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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29.2
2549M–AVR–09/10
Fuse Bits
Table 29-2.
Notes:
The ATmega640/1280/1281/2560/2561 has three Fuse bytes.
page 337
Fuse bytes. Note that the fuses are read as logical zero, “0”, if they are programmed.
Table 29-3.
Note:
BLB1 Mode
Extended Fuse Byte
BODLEVEL2
BODLEVEL1
BODLEVEL0
1
2
3
4
1. Program the Fuse bits and Boot Lock bits before programming the LB1 and LB2.
2. “1” means unprogrammed, “0” means programmed.
See
Memory Lock Bits
describe briefly the functionality of all the fuses and how they are mapped into the
“System and Reset Characteristics” on page 372
–
–
–
–
–
Lock Bit Protection Modes
Extended Fuse Byte
BLB12
(Note:)
(Note:)
(Note:)
1
1
0
0
BLB11
1
0
0
1
Bit No
ATmega640/1280/1281/2560/2561
7
6
5
4
3
2
1
0
Protection Type
No restrictions for SPM or (E)LPM accessing the Boot Loader
section.
SPM is not allowed to write to the Boot Loader section.
SPM is not allowed to write to the Boot Loader section, and
(E)LPM executing from the Application section is not allowed to
read from the Boot Loader section. If Interrupt Vectors are
placed in the Application section, interrupts are disabled while
executing from the Boot Loader section.
(E)LPM executing from the Application section is not allowed to
read from the Boot Loader section. If Interrupt Vectors are
placed in the Application section, interrupts are disabled while
executing from the Boot Loader section.
Brown-out Detector trigger level
Brown-out Detector trigger level
Brown-out Detector trigger level
(1)(2)
(Continued)
Description
–
–
–
–
–
for BODLEVEL Fuse decoding.
Table 29-3
through
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
Default Value
Table 29-5 on
1
1
1
1
1
336
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