ATmega8HVA Atmel Corporation, ATmega8HVA Datasheet - Page 132

• Manufacturer Part Number: ATmega8HVA
• Manufacturer: Atmel Corporation

Specifications of ATmega8HVA

• Flash (kbytes): 8 Kbytes
• Pin Count: 28
• Max. Operating Frequency: 4 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 3
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 6
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 6
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1.9
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 256
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -20 to 85
• I/o Supply Class: 1.8 to 9.0
• Operating Voltage (vcc): 1.8 to 9.0
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

23.9.9
23.9.10
132
ATmega8HVA/16HVA
BPDHCD – Battery Protection Discharge-High-current Detection Level Register
BPCHCD – Battery Protection Charge-High-current Detection Level Register
• Bits 7:0 – DHCDL7:0: Discharge High-current Detection Level
These bits sets the R
Table 23-5 on page
Note:
• Bits 7:0 –CHCDL7:0: Charge High-current Detection Level
These bits sets the R
Table 23-5 on page
Note:
Table 23-5.
Bit
(0xF8)
Read/Write
Initial Value
Bit
(0xF9)
Read/Write
Initial Value
Due to synchronization of parameters between clock domains, a guard time of 3 ULP oscillator
cycles + 3 CPU clock cycles is required between each time the BPDHCD register is written. Any
writing to the BPDHCD register during this period will be ignored.
Due to synchronization of parameters between clock domains, a guard time of 3 ULP oscillator
cycles + 3 CPU clock cycles is required between each time the BPCHCD register is written. Any
writing to the BPCHCD register during this period will be ignored.
DL[7:0]
0xFB
0xFC
0xFD
0xF3
0xF4
0xF5
0xF6
0xF7
0xF8
0xF9
0xFA
DL[7:0] with corresponding R
(R
R/W
R/W
SENSE
7
1
7
1
132.
132.
SENSE
SENSE
= 10 mΩ, VREF = 1.100 ± 0.005V, T
R/W
R/W
6
1
6
1
voltage level for detection of Discharge High-current, as defined in
voltage level for detection of Charge High-current, as defined in
Current Protection Detection Level
Min.
R/W
R/W
5
1
5
1
R/W
R/W
SENSE
4
1
4
1
DHCDL[7:0]
CHCDL[7:0]
Current for all Current Detection Levels
R/W
R/W
3
0
3
0
Typ.
2.0A
2.5A
3.0A
3.5A
4.0A
4.5A
5.0A
5.5A
6.0A
6.5A
7.0A
A
= -10°C to 70°C)
R/W
R/W
2
0
2
0
R/W
R/W
1
1
1
1
R/W
R/W
0
1
0
1
Max.
8024A–AVR–04/08
BPDHCD
BPCHCD