ATmega16HVB Atmel Corporation, ATmega16HVB Datasheet - Page 121

• 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

20.4.4
8042D–AVR–10/11
DIDR0 – Digital Input Disable Register 0
When performing a Vtemp conversion, the result must be adjusted by the factory calibration
value stored in the signature row, refer to section
page 195
• Bits 7:2 – Reserved
These bits are reserved for future use. To ensure compatibility with future devices, these bits
must be written to zero when DIDR0 is written.
• Bit 1:0 – PA1DID:PA0DID: Digital Input Disable
When this bit is written logic one, the digital input buffer on the corresponding Port A pin is dis-
abled. The corresponding PIN Register bit will always read as zero when this bit is set. When an
analog signal is applied to the PA1:0 pin and the digital input from this pin is not needed, this bit
should be written logic one to reduce power consumption in the digital input buffer.
Bit
(0x7E)
Read/Write
Initial Value
for details. The absolute temperature in Kelvin is given by:
R
7
–
0
R
6
–
0
T(K)
R
5
–
0
=
VADCH/L VPTAT CAL
-------------------------------------------------------------- -
R
4
–
0
16384
⋅
”Reading the signature row from software” on
ATmega16HVB/32HVB
R
3
–
0
R
2
–
0
PA1DID
R/W
1
0
PA0DID
R/W
0
0
DIDR0
121