ATmega48 Automotive Atmel Corporation, ATmega48 Automotive Datasheet - Page 71
ATmega48 Automotive
Manufacturer Part Number
ATmega48 Automotive
Description
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
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12.4.3
12.4.4
12.4.5
12.4.6
12.4.7
7701E–AVR–02/11
DDRA – Port A Data Direction Register
PINA – Port A Input Pins Address
PORTB – Port B Data Register
DDRB – Port B Data Direction Register
PINB – Port BInput Pins Address
Bit
0x1A (0x3A)
Read/Write
Initial Value
Bit
0x19 (0x39)
Read/Write
Initial Value
Bit
0x18 (0x38)
Read/Write
Initial Value
Bit
0x17 (0x37)
Read/Write
Initial Value
Bit
0x16 (0x36)
Read/Write
Initial Value
PINA7
DDA7
R/W
R/W
R
R
R
7
0
7
0
7
–
0
7
–
0
7
–
0
PINA6
DDA6
R/W
R/W
R
R
R
6
0
6
0
6
0
6
0
6
0
–
–
–
Atmel ATtiny24/44/84 [Preliminary]
PINA5
DDA5
R/W
R/W
N/A
N/A
R
R
R
5
0
5
5
0
5
0
5
PINA4
DDA4
R/W
R/W
N/A
N/A
R
R
R
4
0
4
4
0
4
0
4
PORTB3
PINA3
PINB3
DDA3
DDB3
R/W
R/W
R/W
R/W
R/W
N/A
N/A
3
0
3
3
0
3
0
3
PORTB2
PINA2
PINB2
DDA2
DDB2
R/W
R/W
R/W
R/W
R/W
N/A
N/A
2
0
2
2
0
2
0
2
PORTB1
PINA1
PINB1
DDA1
DDB1
R/W
R/W
R/W
R/W
R/W
N/A
N/A
1
0
1
1
0
1
0
1
PORTB0
PINA0
PINB0
DDA0
DDB0
R/W
R/W
R/W
R/W
R/W
N/A
N/A
0
0
0
0
0
0
0
0
PORTB
DDRB
DDRB
PINB
PINB
71
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