ATmega48 Automotive Atmel Corporation, ATmega48 Automotive Datasheet - Page 316

• Manufacturer Part Number: ATmega48 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATmega48 Automotive

• Flash (kbytes): 4 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• 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): 0.5
• Eeprom (bytes): 256
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• 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

28.1.7
316
ATmega48/88/168 Automotive
Peripheral Units
Figure 28-25. BOD Threshold vs. Temperature (BODLEVEL is 2.7V)
Figure 28-26. Bandgap Voltage vs. V
Figure 28-27. Analog to Digital Converter GAIN vs. V
-0.20
-0.40
-0.60
-0.80
-1.00
-1.20
-1.40
-1.60
0.00
2.9
2.8
2.7
2.6
2.5
2.4
1.095
1.085
1.075
1.09
1.08
3
-50
1.1
-50
2.5
-40
-30
-20
3
-10
0
0
BOD THRESHOLDS vs. TEMPERATURE
CC
Gain vs. Temperature
10
Falling VCC
3.5
BANDGAP VOLTAGE vs. V
Rising VCC
20
Temperature
BOD setting = 2.70v
Temperature (C)
30
50
Vcc (V)
40
4
50
60
CC
CC
4.5
70
100
80
90
100
5
110
120
150
5.5
125 ˚C
-40 ˚C
85 ˚C
25 ˚C
4V IDLE
4V STD
7530I–AVR–02/10