ATmega168 Automotive Atmel Corporation, ATmega168 Automotive Datasheet - Page 189

• Manufacturer Part Number: ATmega168 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATmega168 Automotive

• Flash (kbytes): 16 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 23
• Ext Interrupts: 24
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 150
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 6
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Table 17-9.
Note:
Table 17-10. Examples of UBRRn Settings for Commonly Used Oscillator Frequencies (Continued)
1.
7530I–AVR–02/10
Baud
Rate
(bps)
57.6k
76.8k
115.2k
230.4k
250k
Max.
Baud
Rate
(bps)
2400
4800
9600
14.4k
19.2k
28.8k
38.4k
57.6k
76.8k
115.2k
230.4k
250k
0.5M
1M
Max.
(1)
(1)
1. UBRRn = 0, Error = 0.0%
UBRRn = 0, Error = 0.0%
UBRR
n
f
U2Xn = 0
UBRR
n
osc
95
47
23
15
11
0
–
–
–
–
7
5
3
2
1
0
0
–
–
230.4 kbps
U2Xn = 0
62.5 kbps
= 3.6864 MHz
Examples of UBRRn Settings for Commonly Used Oscillator Frequencies
f
Error
Error
osc
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
8.5%
0.0%
0.0%
–
–
–
–
–
–
= 1.0000 MHz
U2Xn = 1
UBRR
n
UBRR
n
191
95
47
31
23
15
11
1
7
5
3
1
1
0
–
1
0
–
–
460.8 kbps
U2Xn = 1
125 kbps
Error
Error
-18.6%
-7.8%
-7.8%
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%
–
–
–
UBRR
n
f
U2Xn = 0
UBRR
n
osc
103
51
25
16
12
8
6
3
2
1
0
0
–
–
1
1
0
–
–
115.2 kbps
= 4.0000 MHz
U2Xn = 0
250 kbps
f
Error
Error
-25.0%
osc
-3.5%
-7.0%
0.0%
0.0%
0.2%
0.2%
0.2%
2.1%
0.2%
8.5%
8.5%
8.5%
8.5%
0.0%
–
–
–
–
= 1.8432 MHz
ATmega48/88/168 Automotive
UBRR
n
U2Xn = 1
UBRR
n
207
103
51
34
25
16
12
8
6
3
1
3
2
1
0
–
1
0
–
230.4 kbps
U2Xn = 1
0.5 Mbps
Error
Error
-0.8%
-3.5%
-7.0%
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%
–
–
f
U2Xn = 0
UBRR
n
UBRR
n
osc
191
95
31
23
47
15
11
1
7
5
3
1
1
0
–
1
0
–
–
460.8 kbps
= 7.3728 MHz
U2Xn = 0
125 kbps
f
Error
Error
-18.6%
osc
-7.8%
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
8.5%
8.5%
–
–
–
= 2.0000 MHz
U2Xn = 1
UBRR
n
UBRR
n
383
191
95
63
47
31
23
15
11
7
3
3
1
0
3
2
1
–
0
921.6 kbps
U2Xn = 1
250 kbps
Error
Error
-7.8%
-7.8%
-7.8%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
8.5%
8.5%
8.5%
0.0%
–
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