Datasheet

276
ATmega325/3250/645/6450
2570K–AVR–04/07
8. Power-off sequence (if needed):
Set RESET
to “1”.
Tur n V
CC
power off.
Figure 122. Serial Programming Waveforms
Table 120. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Symbol Minimum Wait Delay
t
WD_FUSE
4.5 ms
t
WD_FLASH
4.5 ms
t
WD_EEPROM
9.0 ms
t
WD_ERASE
9.0 ms
MSB
MSB
LSB
LSB
SERIAL CLOCK INPUT
(SCK)
SERIAL DATA INPUT
(MOSI)
(MISO)
SAMPLE
SERIAL DATA OUTPUT