ATmega8HVA Atmel Corporation, ATmega8HVA Datasheet - Page 16

• 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

8. AVR Memories
8.1
8.2
8.3
16
Overview
In-System Reprogrammable Flash Program Memory
SRAM Data Memory
ATmega8HVA/16HVA
This section describes the different memories in the ATmega8HVA/16HVA. The AVR architec-
ture has two main memory spaces, the Data Memory and the Program Memory space. In
addition, the ATmega8HVA/16HVA features an EEPROM Memory for data storage. All three
memory spaces are linear and regular.
The ATmega8HVA/16HVA contains 8K/16K bytes On-chip In-System Reprogrammable Flash
memory for program storage. Since all AVR instructions are 16 or 32 bits wide, the Flash is orga-
nized as 4K/8K x 16.
The Flash memory has an endurance of at least 10,000 write/erase cycles. The
ATmega8HVA/16HVA Program Counter (PC) is 12/13 bits wide, thus addressing the 4K/8K pro-
gram memory locations.
Flash data serial programming.
Constant tables can be allocated within the entire program memory address space (see the LPM
– Load Program Memory instruction description).
Timing diagrams for instruction fetch and execution are presented in
ing” on page
Figure 8-1.
Figure 8-2 on page 17
The ATmega8HVA/16HVA is a complex microcontroller with more peripheral units than can be
supported within the 64 locations reserved in the Opcode for the IN and OUT instructions. For
13.
Program Memory Map
Program Memory, organized as 4K/8K x 16 bits
shows how the ATmega8HVA/16HVA SRAM Memory is organized.
”Memory Programming” on page 149
0x0000
0x0FFF/0x1FFF
contains a detailed description on
”Instruction Execution Tim-
8024A–AVR–04/08