ATmega8HVA Atmel Corporation, ATmega8HVA Datasheet - Page 151

• 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

27.3
27.4
27.5
Table 27-6.
Table 27-7.
27.6
8024A–AVR–04/08
ATmega16HVA
ATmega8HVA
Device
Signature Bytes
Calibration Bytes
Page Size
Serial Programming
EEPROM Size
256 bytes
No. of Words in a Page and No. of Pages in the Flash, ATmega8HVA/16HVA
No. of Words in a Page and No. of Pages in the EEPROM
8K words (16K bytes)
4K words (8K bytes)
All Atmel microcontrollers have a three-byte signature code which identifies the device. This
code can be read in both Programming mode, also when the device is locked. The three bytes
reside in a separate address space. The signature bytes of ATmega8HVA/16HVA is given in
Table
Table 27-5.
The ATmega8HVA/16HVA has calibration bytes for the RC Oscillators, internal voltage refer-
ence, internal temperature reference and each differential cell voltage input. These bytes reside
in the signature address space. See
for details.
Both the Flash and EEPROM memory arrays can be programmed using the serial SPI bus while
RESET is pulled to GND. The serial interface consists of pins SCK, MOSI (input) and MISO (out-
put). After RESET is set low, the Programming Enable instruction needs to be executed first
before program/erase operations can be executed. NOTE, in
mapping for SPI programming is listed. Not all parts use the SPI pins dedicated for the internal
SPI interface.
Part
ATmega8HVA
ATmega16HVA
Flash Size
27-5.
Page Size
4 bytes
Device ID
Page Size
64 words
64 words
PCWORD
EEA[1:0]
”Reading the Signature Row from Software” on page 144
PCWORD
PC[5:0]
PC[5:0]
0x000
0x1E
0x1E
No. of Pages
64
No. of Pages
Signature Bytes Address
ATmega8HVA/16HVA
128
64
Table 27-8 on page
0x001
0x93
0x94
PCPAGE
EEA[7:2]
PCPAGE
PC[11:6]
PC[12:6]
0x002
152, the pin
0x0C
EEAMSB
0x10
PCMSB
7
11
12
151