ATmega16HVB Atmel Corporation, ATmega16HVB Datasheet - Page 227

• Manufacturer Part Number: ATmega16HVB
• 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

32.4
Table 32-3.
Notes:
32.5
Table 32-4.
32.6
Table 32-5.
Notes:
8042D–AVR–10/11
Symbol
V
V
V
Parameter
Reference voltage
Reference voltage accuracy
Temperature drift
VREF calibration
Hold Off Time
V
V
Symbol
V
VREG
RSCL
BLOD
PTAT
PTAT
V
V
t
RST
HYST
POT
BOT
, voltage proportional to absolute temperature
absolute accuracy
Reset characteristics
1. The voltage at the pack + terminal will be slightly higher than V
2. The power-on reset will not work unless the voltage has been below V
Voltage regulator characteristics
Voltage reference and temperature sensor characteristics
1. Calibration is done in Atmel factory test. Software should calibrate the VREF by writing the BGCRR and BGCCR registers
2. This value is not tested in production.
3. The measured V
Pull-down current on the BATT pin in the range 50µA - 150µA and the R
and the BATT pin. R
with the calibration values stored in the signature row.
absolute temperature. The design target accuracy for this parameter assumes an exact calibration temperature. Actual
accuracy of this parameter after calibration in Atmel factory test remains to be determined.
Parameter
Power-on threshold voltage (rising)
Power-on threshold voltage (falling)
Minimum pulse width on RESET Pin
Brown-out detection (BOD) trigger level
BOD level hysteresis
Parameter
Regulator output voltage
Voltage regulator short- circuit Level at VFET pin
Voltage Regulator Black-out Detection Level at
VREG pin
T
T
T
A
A
A
= -40°C to +85°C unless otherwise noted.
= -40°C to +85°C unless otherwise noted.
= -40°C to +85°C unless otherwise noted.
(1)(2)
(3)
PTAT
(1)
BATT
voltage must be scaled with the calibration value stored in the V
= 1k gives a voltage drop 0.05V - 0.15V.
(1)
(1)(2)
(2)
Condition
VFET = 16.8V, I
VFET = 6V, I
VFET = 4V, I
T
Condition
After factory calibration,
T
T
T
CREG = 2.2µF, BGCCR write
CREG = 2.2µf, BGCRR write
A
A
A
A
= 25°C
= 25°C
= -40°C to +85°C
= 0°C to +60°C
POT
Condition
T
T
A
A
when the chip is enabled. This is because of an internal
= 25°C
= 25°C
OUT
OUT
POT
OUT
BATT
= 20mA
= 7mA
(falling) after a power-off condition.
= 20mA
ATmega16HVB/32HVB
resistor connected between the Pack + terminal
PTAT
Min.
Min.
Min.
Calibration Register to get the
4.5
4.5
3.1
3.1
3.1
3.3
2
5
1.100
Typ.
Typ.
2.65
900
Typ.
±0.1
2.9
50
0.6
60
25
Max.
Max.
Max.
2.75
±0.2
6.3
3.1
3.8
90
50
±5
7
Units
ppm/K
Units
mV/K
Unit
mV
ns
µs
V
V
V
%
V
K
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