ATmega168PA Automotive Atmel Corporation, ATmega168PA Automotive Datasheet - Page 195
ATmega168PA Automotive
Manufacturer Part Number
ATmega168PA Automotive
Description
Manufacturer
Atmel Corporation
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Table 20-5.
Table 20-6.
9223B–AVR–09/11
Note:
Note:
115.2k
230.4k
Max.
115.2k
230.4k
Max.
Baud
(bps)
14.4k
19.2k
28.8k
38.4k
57.6k
76.8k
Baud
(bps)
14.4k
19.2k
28.8k
38.4k
57.6k
76.8k
Rate
2400
4800
9600
250k
0.5M
Rate
2400
4800
9600
250k
0.5M
1M
1M
(1)
(1)
1. UBRRn = 0, Error = 0.0%
1. UBRRn = 0, Error = 0.0%
UBRRn
UBRRn
207
103
95
47
23
15
11
51
34
25
16
12
7
5
3
2
1
0
0
–
–
8
6
3
1
1
0
–
230.4kbps
Examples of UBRRn Settings for Commonly Used Oscillator Frequencies (Continued)
Examples of UBRRn Settings for Commonly Used Oscillator Frequencies (Continued)
U2Xn = 0
U2Xn = 0
0.5Mbps
f
f
osc
osc
-7.8%
-0.8%
-3.5%
-7.0%
Error
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.2%
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
0.0%
0.0%
–
–
–
= 3.6864MHz
= 8.0000MHz
UBRRn
UBRRn
191
416
207
103
95
47
31
23
15
11
68
51
34
25
16
12
Atmel ATmega48PA/88PA/168PA [Preliminary]
7
5
3
1
1
0
–
8
3
3
1
0
460.8kbps
U2Xn = 1
U2Xn = 1
1Mbps
-7.8%
-7.8%
-0.1%
-0.8%
-3.5%
Error
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.2%
0.2%
0.6%
0.2%
0.2%
2.1%
0.2%
8.5%
0.0%
0.0%
0.0%
–
UBRRn
UBRRn
103
287
143
25
12
35
17
11
51
16
71
47
23
8
6
3
2
1
0
0
–
–
8
5
2
2
–
–
691.2kbps
U2Xn = 0
U2Xn = 0
250kbps
f
osc
f
osc
-3.5%
-7.0%
-7.8%
Error
Error
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
8.5%
8.5%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
=
–
–
–
–
= 4.0000MHz
11.0592
UBRRn
UBRRn
207
103
575
287
143
1.3824Mbps
51
34
25
16
12
95
71
47
35
23
17
11
8
6
3
1
1
0
–
MHz
5
5
2
–
U2Xn = 1
U2Xn = 1
0.5Mbps
-0.8%
-3.5%
-7.0%
-7.8%
-7.8%
Error
Error
0.2%
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
–
UBRRn
UBRRn
191
383
191
95
47
31
23
15
11
95
63
47
31
23
15
11
7
5
3
1
1
0
7
3
3
–
460.8kbps
1
0
921.6kbps
U2Xn = 0
U2Xn = 0
f
f
osc
osc
-7.8%
-7.8%
-7.8%
-7.8%
-7.8%
Error
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
= 14.7456MHz
= 7.3728MHz
UBRRn
UBRRn
383
191
767
383
191
127
1.8432Mbps
95
63
47
31
23
15
11
95
63
47
31
23
15
7
3
3
1
0
7
6
3
1
921.6kbps
U2Xn = 1
U2Xn = 1
-7.8%
-7.8%
-7.8%
-7.8%
-7.8%
Error
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
5.3%
195
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