ATmega48 Automotive Atmel Corporation, ATmega48 Automotive Datasheet - Page 219

• 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

30. Table of Contents
7701E–AVR–02/11
1
2
3
4
5
6
7
Features .................................................................................................. 1
Pin Configurations ................................................................................ 2
Overview ................................................................................................ 3
Resources .............................................................................................. 6
About Code Examples .......................................................................... 6
CPU Core ................................................................................................ 7
Memories .............................................................................................. 15
System Clock and Clock Options ...................................................... 25
1.1
2.1
2.2
2.3
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
6.1
6.2
6.3
6.4
6.5
7.1
7.2
7.3
7.4
7.5
7.6
7.7
Crystal Oscillator ..........................................................................................27
Disclaimer ......................................................................................................2
Block Diagram ................................................................................................3
Automotive Quality Grade ..............................................................................4
Pin Descriptions .............................................................................................5
Overview ........................................................................................................7
Architectural Overview ...................................................................................7
ALU – Arithmetic Logic Unit ...........................................................................8
Status Register ...............................................................................................8
General Purpose Register File .....................................................................10
Stack Pointer ................................................................................................11
Instruction Execution Timing ........................................................................12
Reset and Interrupt Handling .......................................................................12
In-System Re-programmable Flash Program Memory .................................15
SRAM Data Memory ....................................................................................15
EEPROM Data Memory ...............................................................................17
I/O Memory ..................................................................................................21
Register Description .....................................................................................22
Clock Systems and their Distribution ............................................................25
Clock Sources ..............................................................................................26
Default Clock Source ...................................................................................26
Low-frequency Crystal Oscillator ..................................................................28
Calibrated Internal RC Oscillator ..................................................................29
External Clock ..............................................................................................29
Atmel ATtiny24/44/84 [Preliminary]
219