ATMEGA406-1AAU Atmel, ATMEGA406-1AAU Datasheet - Page 112

• Manufacturer Part Number: ATMEGA406-1AAU
• Description: IC AVR MCU 40K 1MHZ 48LQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA406-1AAU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 1MHz
• Connectivity: I²C
• Peripherals: POR, WDT
• Number Of I /o: 18
• Program Memory Size: 40KB (20K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 25 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -30°C ~ 85°C
• Package / Case: 48-LQFP
• Processor Series: ATMEGA48x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: 2-Wire
• Maximum Clock Frequency: 1 MHz
• Number Of Programmable I/os: 18
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 30 C
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 1MHz
• Total Internal Ram Size: 2KB
• # I/os (max): 18
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 5/9/12/15/18/24V
• Operating Supply Voltage (max): 25V
• Operating Supply Voltage (min): 4V
• On-chip Adc: 10-chx12-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -30C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Controller Family/series: AVR MEGA
• No. Of I/o's: 18
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 2KB
• Cpu Speed: 1MHz
• Rohs Compliant: Yes
• For Use With: 770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.2.5
18.2.6
112
ATmega406
CADRCC – CC-ADC Regular Charge Current
CADRDC – CC-ADC Regular Discharge Current
When CADAC0 is read, the CC-ADC Accumulate Current register is not updated until CADAC3
is read. Reading the registers in the sequence CADAC0, CADAC1, CADAC2, CADAC3 will
ensure that consistent values are read.
The CC-ADC Regular Charge Current Register determines the threshold level for the Regular
Charge Current detection. When the result of a CC-ADC Instantaneous Current conversion is
positive with a value greater than, or equal to, the Regular Charge Current level, the CC-ADC
Regular Current Interrupt Flag is set.
The value in this register is specified in 2's complement format, and it defines the eight least sig-
nificant bits of the Regular Charge Current level. The most significant bits of the Regular Charge
Current level are always zero. The programmable range for the Regular Charge Current level is
given in
Table 18-3.
The CC-ADC Regular Charge Current Register does not affect the setting of the CC-ADC Con-
version Complete Interrupt Flag.
The CC-ADC Regular Discharge Current Register determines the threshold level for the Regular
Discharge Current detection. When the result of a CC-ADC Instantaneous Current conversion is
negative with an absolute value greater than, or equal to, the Regular Discharge Current level,
the CC-ADC Regular Current Interrupt Flag is set.
The value in this register is specified in 2's complement format, and it defines the eight least sig-
nificant bits of the Regular Discharge Current level. The most significant bits of the Regular
Bit
(0xE6)
Read/Write
Initial Value
Bit
(0xE7)
Read/Write
Initial Value
Voltage (µV)
Current (mA)
Table
R/W
18-3.
Programmable Range for the Regular Charge Current Level
7
0
R/W
7
0
R
R
SENSE
SENSE
R/W
6
0
R/W
6
0
= 5 mΩ
= 7 mΩ
R/W
5
0
R/W
5
0
R/W
R/W
4
0
CADRDC[7:0]
4
0
CADRCC[7:0]
Minimum
R/W
R/W
0
0
0
3
0
3
0
R/W
R/W
2
0
2
0
Maximum
13700
2740
1957
R/W
R/W
1
0
1
0
R/W
R/W
0
0
0
0
2548E–AVR–07/06
Step Size
53.7
10.7
7.7
CADRCC
CADRDC