ATmega48/88/168 Fuse Calculator
Clock Source:
External Clock Source
~ 32 kHz
0.4-0.9 MHz (Ceramic)
0.9-3 MHz
3-8 MHz
8-16 MHz
0.4-20 MHz (Full Swing)
128 kHz
8 MHz *
Start-up Time:
fast rising power (not close to max. freq.)
slowly rising power (not close to max. freq.)
BOD enabled (stable freq. at start-up)
fast rising power (stable freq. at start-up)
slowly rising power (stable freq. at start-up)
BOD enabled (freq. not stable at start-up)
fast rising power (freq. not stable at start-up)
slowly rising power (freq. not stable at start-up)
BOD enabled
fast rising power
slowly rising power
BOD enabled
fast rising power
slowly rising power
BOD enabled
fast rising power
slowly rising power *
fast rising power or BOD enabled (not close to max. freq.)
Output Clock on PB0
Divide Clock by 8 *
Low
BOD Level:
BOD disabled *
1.8 V
2.7 V
4.3 V
Preserve EEPROM through Chip Erase
Watchdog Timer always on
Enable SPI programming *
Enable debugWire
Disable external Reset
High
ATmega48: Enable Self Programming,
ATmega88/168: Move Reset Vector to Boot Loader
ATmega88/168: Boot Block Size:
1024 words / 2048 bytes *
512 words / 1024 bytes
256 words / 512 bytes
128 words / 256 bytes
Select this for ATmega48 *
Extended
* = default
set default:
Mega48
,
Mega88/168