ATmega406 Atmel Corporation, ATmega406 Datasheet - Page 200

• 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

200
ATmega406
Table 28-7.
Table 28-8.
Table 28-9.
Signal Name in
Programming Mode
BS2
RDY/BSY
OE
WR
BS1
XA0
XA1
PAGEL
DATA
XA1
0
0
1
1
PAGEL
XA1
XA0
BS1
Pin
Pin Name Mapping
Pin Values Used to Enter Programming Mode
XA1 and XA0 Coding
XA0
0
1
0
1
Name
PB7:0
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (High or low address byte determined by
BS1).
Load Data (High or Low data byte for Flash determined by BS1).
Load Command
No Action, Idle
Pin
I/O
I/O
O
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
I
I
I
I
I
I
I
Symbol
Function
Byte Select 2 (“0” selects low byte, “1” selects 2’nd high
byte).
0: Device is busy programming, 1: Device is ready for new
command.
Output Enable (Active low).
Write Pulse (Active low).
Byte Select 1 (“0” selects low byte, “1” selects high byte).
XTAL Action Bit 0
XTAL Action Bit 1
Program Memory and EEPROM data Page Load.
Bi-directional Data bus (Output when OE is low).
Value
0
0
0
0
2548E–AVR–07/06