ATmega8HVA Atmel Corporation, ATmega8HVA Datasheet - Page 172

• 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

29.8
29.8.1
172
Programming Characteristics
ATmega8HVA/16HVA
Serial Programming
SPI Interface Timing Requirements (Slave Mode)
Figure 29-2. Serial Programming Timing
Figure 29-3. Serial Programming Waveforms
(Data Output)
SERIAL DATA OUTPUT
(Data Input)
SERIAL CLOCK INPUT
(CPOL = 0)
(CPOL = 1)
SERIAL DATA INPUT
MOSI
MISO
SCK
SCK
SS
SAMPLE
(MOSI)
(MISO)
(SCK)
9
MOSI
MISO
SCK
13
MSB
t
MSB
OVSH
MSB
MSB
14
15
t
SHSL
...
...
t
SHOX
11
t
SLSH
10
LSB
t
LSB
SLIV
11
12
16
LSB
LSB
8024A–AVR–04/08
X
17