ATmega16HVB Atmel Corporation, ATmega16HVB Datasheet - Page 118
ATmega16HVB
Manufacturer Part Number
ATmega16HVB
Description
Manufacturer
Atmel Corporation
Specifications of ATmega16HVB
Flash (kbytes)
16 Kbytes
Pin Count
44
Max. Operating Frequency
8 MHz
Cpu
8-bit AVR
# Of Touch Channels
8
Hardware Qtouch Acquisition
No
Max I/o Pins
17
Ext Interrupts
15
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
1.9
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
1
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 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
4
Input Capture Channels
2
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATmega16HVB-8X3
Manufacturer:
LT
Quantity:
51
Part Number:
ATmega16HVB-8X3
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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20.3.2
118
ATmega16HVB/32HVB
Cell inputs
The V-ADC features one input channel for each battery cell to be able to measure each cell indi-
vidually and to measure the total battery voltage through the input pins NV, PV1, PV2, PV3 and
PV4. Note that the internal Cell Balancing uses the same pins to bypass balancing current (see
”Cell balancing” on page
the V-ADC should not do conversion on the selected channel, as the internal Cell balancing will
affect the conversion result.
The V-ADC is designed to operate on PV1 pin voltages above 2V. If the battery cell voltage on
PV1 input falls below 2V the upper cell voltage appears to be lower than the its actual value. To
avoid that cells get potentially overcharged software should keep the cells in balance using the
internal Cell Balancing. See
When not using all the cell inputs, the unused cells should be connected to the cell below. An
example external coupling in 3-cell mode is shown in
not used, it is recommended to connect the input through an external resistance to limit inverse
coupling current. This is to be able to protect the battery if cells are reversed coupled during
production.
Figure 20-3. A 3-cell mode connection.
R
R
R
R
R
151) for details for balancing the battery cells. When balancing a cell
”Cell balancing” on page 151
C
C
C
PV4
PV3
PV2
PV1
NV
ATmega16HVB/32HVB
Figure
for details.
20-3. Note that even if the input is
8042D–AVR–10/11
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