ATmega406 Atmel Corporation, ATmega406 Datasheet - Page 190

• 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

190
ATmega406
Table 27-5.
Notes:
All other addresses are reserved for future use.
Signature Byte
V-ADC Cell2 Offse
V-ADC Cell3 Offse
V-ADC Cell4 Offset
VPTAT CAL L
VPTAT CAL H
1. Default FOSCCAL value after reset.
2. Slow RC oscillator Frequency in kHz
3. Slow RC Oscillator fastest timeout in µs.
4. Calibration value found for BGCCR which gives 1.1V at VREF when BGCRR = 0x0F.
5. ULP RC Oscillator Frequency in kHz.
6. ULP RC Oscillator fastest timeout in µs.
7. Slow RC Oscillator Frequency Temperature drift prediction value (word). Measured over sev-
8. Calibration Word used for the second step of VREF calibration. This step is performed by the
9. Calibration Word used to compensate for gain error in V-ADC Cell input 1 - 4. Cell x in mV =
10. Calibration Word used to compensate for gain error in V-ADC ADC0. ADC0 in mV =
11. Calibration Word used to calculate the absolute temperature in Kelvin from VTEMP conver-
12. Calibration Byte used to compensate for offset in V-ADC Cells. Not implemented.
eral lots. Not implemented.
customer at 25°C. Value stored is VADCH/L when Cell1 had 4096 mV at 85°C.
VADCH/L*this word/16384.
VADCH/L*this word/16384.
sion. Temp in K = VADCH/L*this word/16384.
(11)
Signature Row Addressing
(12)
(12)
(12)
t
t
Z-Pointer Address
0x1D
0x1E
0x1F
0x1A
0x1B
2548E–AVR–07/06