ATMEGA2561-16AI Atmel, ATMEGA2561-16AI Datasheet - Page 229
ATMEGA2561-16AI
Manufacturer Part Number
ATMEGA2561-16AI
Description
IC AVR MCU 256K 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA2561-16AI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
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)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Manufacturer
Quantity
Price
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Table 21-10. Examples of UBRRn Settings for Commonly Used Oscillator Frequencies (Continued)
1.
2549M–AVR–09/10
Max.
115.2 K
230.4 K
14.4 K
19.2 K
28.8 K
38.4 K
57.6 K
76.8 K
250 K
Baud
(bps)
0.5 M
Rate
2400
4800
9600
1 M
(1)
UBRR = 0, Error = 0.0%
UBRR
95
47
23
15
11
7
5
3
2
1
0
0
–
–
230.4 Kbps
U2Xn = 0
f
osc
-7.8%
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
–
= 3.6864 MHz
UBRR
191
95
47
31
23
15
11
7
5
3
1
1
0
–
460.8 Kbps
U2Xn = 1
-7.8%
-7.8%
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
UBRR
103
51
25
16
12
8
6
3
2
1
0
0
–
–
U2Xn = 0
250 Kbps
f
osc
ATmega640/1280/1281/2560/2561
-3.5%
-7.0%
Error
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
8.5%
8.5%
0.0%
–
–
= 4.0000 MHz
UBRR
207
103
51
34
25
16
12
8
6
1
3
1
0
–
U2Xn = 1
0.5 Mbps
-0.8%
-3.5%
-7.0%
Error
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
0.0%
0.2%
0.2%
0.0%
–
UBRR
191
95
47
31
15
11
23
1
7
5
3
1
0
–
460.8 Kbps
U2Xn = 0
f
osc
-7.8%
-7.8%
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
= 7.3728 MHz
UBRR
383
191
95
63
47
31
23
15
11
7
3
3
1
0
921.6 Kbps
U2Xn = 1
-7.8%
-7.8%
-7.8%
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
229
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