ATMEGA406-1AAU Atmel, ATMEGA406-1AAU Datasheet - Page 129

• 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

22.7.3
2548E–AVR–07/06
CBPTR – Current Battery Protection Timing Register
When the DUVD bit is set, the Deep Under-voltage Protection is disabled. The Deep Under-volt-
age Detection will be disabled, and any Deep Under-voltage condition will be ignored
• Bit 2 – SCD: Short Circuit Protection Disabled
When the SCD bit is set, the Short-circuit Protection is disabled. The Short-circuit Detection will
be disabled, and any Short-circuit condition will be ignored.
• Bit 1 – DCD: Discharge Over-current Protection Disable
When the DCD bit is set, the Discharge Over-current Protection is disabled. The Discharge
Over-current Detection will be disabled, and any Discharge Over-current condition will be
ignored.
• Bit 0 – CCD: Charge Over-current Protection Disable
When the CCD bit is set, the Charge Over-current Protection is disabled. The Charge Over-cur-
rent Detection will be disabled, and any Charge Over-current condition will be ignored.
• Bit 7:4 – SCPT3:0: Short-circuit Protection Timing
These bits control the delay of the Short-circuit Protection. See
Table 22-2.
• Bit 3:0 – OCPT3:0: Over-current Protection Timing
These bits control the delay of the Charge and Discharge Current Protection. See
Note that the same setting applies to both types of over-current protection.
Table 22-3.
Bit
(0xF6)
Read/Write
Initial Value
SCPT[3:0]
OCPT[3:0]
0000
0001
0010
0011
0000
0001
0010
0011
SCPT[3:0] with Corresponding Short-circuit Delay Time
OCPT[3:0] with Corresponding Over-current Delay Time
122 µs
183 µs
244 µs
61 µs
R/W
1 ms
2 ms
4 ms
6 ms
Typ
Typ
7
0
R/W
SCPT[3:0]
OCPT[3:0]
6
0
SCPT[3:0]
0100
0101
0110
0111
0100
0101
0110
0111
Short-circuit Protection Reaction Time
Over-current Protection Reaction Time
R/W
5
0
305 µs
366 µs
427 µs
488 µs
10 ms
12 ms
14 ms
Typ
8 ms
Typ
R/W
4
0
SCPT[3:0]
OCPT[3:0]
1000
1001
1010
1011
R/W
1000
1001
1010
1011
3
0
R/W
2
0
610 µs
732 µs
854 µs
976 µs
Table
OCPT[3:0]
16 ms
18 ms
20 ms
22 ms
Typ
Typ
22-2.
R/W
1
0
SCPT[3:0]
ATmega406
OCPT[3:0]
1100
1101
1110
1111
1100
1101
1110
1111
R/W
0
0
Table
1098 µs
1220 µs
1342 µs
1464 µs
CBPTR
24 ms
26 ms
28 ms
30 ms
Typ
Typ
22-3.
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