ATmega8HVA Atmel Corporation, ATmega8HVA Datasheet - Page 146

• 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

26.2.6
146
ATmega8HVA/16HVA
Programming Time for Flash when Using SPM
The Fast RC Oscillator is used to time Flash accesses.
ming time for Flash accesses from the CPU.
Table 26-2.
Note:
Table 26-3.
Table 26-4.
Flash write (Page Erase, Page Write, and
Variable
PCMSB
PAGEMSB
ZPCMSB
ZPAGEMSB
PCPAGE
PCWORD
Variable
PCMSB
1. Minimum and maximum programming times is per individual operation.
write Lock bits by SPM)
SPM Programming Time, f
Explanation of different variables used in
pointer, ATmega8HVA.
Explanation of different variables used in
pointer, ATmega16HVA.
Symbol
PC[11:6]
PC[5:0]
11
12
5
Corresponding
Corresponding
Z-value
Z-value
Z12:Z7
Z6:Z1
Z12
Z6
OSC
Min Programming Time
= 8.0 MHz
Description
Most significant bit in the Program Counter. (The
Program Counter is 12 bits PC[11:0])
Most significant bit which is used to address the
words within one page (64 words in a page requires
six bits PC [5:0]).
Bit in Z-register that is mapped to PCMSB. Because
Z0 is not used, the ZPCMSB equals PCMSB + 1.
Bit in Z-register that is mapped to PCMSB. Because
Z0 is not used, the ZPAGEMSB equals PAGEMSB +
1.
Program Counter page address: Page select, for
Page Erase and Page Write
Program Counter word address: Word select, for
filling temporary buffer (must be zero during Page
Write operation)
Description
Most significant bit in the Program Counter. (The
Program Counter is 13 bits PC[12:0])
3.7 ms
(1)
Figure 26-1
Figure 26-1
Table 26-2
and the mapping to the Z-
and the mapping to the Z-
shows the typical program-
Max Programming Time
4.5 ms
8024A–AVR–04/08