ATmega406 Atmel Corporation, ATmega406 Datasheet - Page 198
ATmega406
Manufacturer Part Number
ATmega406
Description
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATmega406-1AAU
Manufacturer:
AT
Quantity:
20 000
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28.3
28.4
28.5
198
Signature Bytes
Calibration Bytes
Page Size
ATmega406
All Atmel microcontrollers have a three-byte signature code which identifies the device. This
code can be read in both serial and parallel mode, also when the device is locked. The three
bytes reside in a separate address space.
For the ATmega406 the signature bytes are:
1. 0x000: 0x1E (indicates manufactured by Atmel).
2. 0x001: 0x95 (indicates 40KB Flash memory).
3. 0x002: 0x07(indicates ATmega406 device when 0x001 is 0x95).
The ATmega406 has calibration bytes for the Fast RC Oscillator, Slow RC Oscillator, internal
voltage reference, internal temperature reference and each differential cell voltage input. These
bytes reside in the high bytes in the signature address space. During Reset, the calibration byte
for the Fast RC Oscillator is automatically written into the corresponding calibration register. The
other calibration bytes should be handled by the application software. See
ture Row from Software” on page 189
Table 28-5.
Table 28-6.
20K words (40K bytes)
EEPROM Size
Flash Size
512 bytes
No. of Words in a Page and No. of Pages in the Flash
No. of Words in a Page and No. of Pages in the EEPROM
Page Size
Page Size
4 bytes
64 words
for details.
PCWORD
EEA[1:0]
PCWORD
PC[5:0]
No. of Pages
No. of Pages
128
320
PCPAGE
EEA[8:2]
PCPAGE
PC[14:6]
”Reading the Signa-
2548E–AVR–07/06
EEAMSB
PCMSB
14
8
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