ATMEGA161-8PI Atmel, ATMEGA161-8PI Datasheet - Page 77

• Manufacturer Part Number: ATMEGA161-8PI
• Description: IC AVR MCU 16K 8MHZ IND 40-DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA161-8PI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -
• Other names: ATMEGA1618PI

1228D–AVR–02/07
Table 24. UBR Settings at Various Crystal Frequencies
Baud Rate
Baud Rate 3.2768 MHz %Error
Baud Rate 7.3728 MHz %Error
115200 UBR=
115200 UBR=
115200 UBR=
14400 UBR=
19200 UBR=
28800 UBR=
38400 UBR=
57600 UBR=
76800 UBR=
14400 UBR=
19200 UBR=
28800 UBR=
38400 UBR=
57600 UBR=
76800 UBR=
14400 UBR=
19200 UBR=
28800 UBR=
38400 UBR=
57600 UBR=
76800 UBR=
2400 UBR=
4800 UBR=
9600 UBR=
2400 UBR=
4800 UBR=
9600 UBR=
2400 UBR=
4800 UBR=
9600 UBR=
1 MHz %Error
191
25
12
84
42
20
13
10
95
47
31
23
15
11
6
3
2
1
1
0
0
0
6
4
3
2
1
7
5
3
22.9 UBR=
22.9 UBR=
84.3 UBR=
12.5 UBR=
12.5 UBR=
12.5 UBR=
0.2 UBR=
0.2 UBR=
7.5 UBR=
7.8 UBR=
7.8 UBR=
7.8 UBR=
7.8 UBR=
0.4 UBR=
0.8 UBR=
1.6 UBR=
1.6 UBR=
3.1 UBR=
1.6 UBR=
6.3 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
1.8432 MHz %Error
3.6864 MHz %Error
8 MHz %Error
207
103
47
23
11
95
47
23
15
11
51
34
25
16
12
7
5
3
2
1
1
0
7
5
3
2
1
8
6
3
33.3 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.2 UBR=
0.2 UBR=
0.2 UBR=
0.8 UBR=
0.2 UBR=
2.1 UBR=
0.2 UBR=
3.7 UBR=
7.5 UBR=
7.8 UBR=
9.216 MHz %Error
2 MHz %Error
4 MHz %Error
103
239
119
51
25
12
51
25
16
12
59
39
29
19
14
8
6
3
2
1
1
0
8
6
3
2
1
9
7
4
ATmega161(L)
22.9 UBR=
0.2 UBR=
0.2 UBR=
0.2 UBR=
3.7 UBR=
7.5 UBR=
7.8 UBR=
7.8 UBR=
7.8 UBR=
7.8 UBR=
0.2 UBR=
0.2 UBR=
0.2 UBR=
2.1 UBR=
0.2 UBR=
3.7 UBR=
7.5 UBR=
7.8 UBR=
7.8 UBR=
7.8 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
0.0 UBR=
6.7 UBR=
0.0 UBR=
2.4576 MHz %Error
11.059 MHz %Error
4.608 MHz %Error
119
287
143
63
31
15
10
59
29
19
14
71
47
35
23
17
11
7
4
3
2
1
0
9
7
4
3
2
8
5
12.5
25.0
20.0
-
0.0
0.0
0.0
3.1
0.0
6.3
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
6.7
0.0
6.7
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
77