ATmega406 Atmel Corporation, ATmega406 Datasheet - Page 257

• Manufacturer Part Number: ATmega406
• Manufacturer: Atmel Corporation

Specifications of ATmega406

• Flash (kbytes): 40 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 1 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 18
• Ext Interrupts: 4
• Usb Speed: No
• Usb Interface: No
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1.9
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -30 to 85
• I/o Supply Class: 4.0 to 25
• Operating Voltage (vcc): 4.0 to 25
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Pwm Channels: 2
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Table of Contents
2548E–AVR–07/06
1
2
3
4
5
6
7
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 3
Resources ................................................................................................. 7
About Code Examples ............................................................................. 7
AVR CPU Core .......................................................................................... 8
AVR Memories ........................................................................................ 16
System Clock and Clock Options ......................................................... 25
1.1 Disclaimer .................................................................................................................2
2.1 Block Diagram ..........................................................................................................3
2.2 Pin Descriptions .......................................................................................................5
5.1 Introduction ...............................................................................................................8
5.2 Architectural Overview .............................................................................................8
5.3 ALU – Arithmetic Logic Unit .....................................................................................9
5.4 Status Register .......................................................................................................10
5.5 General Purpose Register File ...............................................................................11
5.6 Stack Pointer ..........................................................................................................12
5.7 Instruction Execution Timing ..................................................................................13
5.8 Reset and Interrupt Handling .................................................................................14
6.1 In-System Reprogrammable Flash Program Memory ............................................16
6.2 SRAM Data Memory ..............................................................................................17
6.3 EEPROM Data Memory .........................................................................................18
6.4 I/O Memory .............................................................................................................24
7.1 Clock Systems and their Distribution ......................................................................25
7.2 Clock Sources ........................................................................................................26
7.3 Calibrated Fast RC Oscillator .................................................................................26
7.4 32 kHz Crystal Oscillator ........................................................................................27
7.5 Slow RC Oscillator .................................................................................................27
7.6 Ultra Low Power RC Oscillator ...............................................................................27
7.7 CPU, I/O, Flash, and Voltage ADC Clock ...............................................................27
7.8 Coulomb Counter ADC and Wake-up Timer Clock ................................................28
7.9 Watchdog Timer and Battery Protection Clock .......................................................28
ATmega406
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