5.3 Characteristics

This chapter will compare the biggest changes in electrical- and typical characteristics. For the most up-to-date- and other numbers refer to the latest data sheet of the device.

The latest data sheets can be found here:

ATmega48PB/88PB/168PB - www.microchip.com/wwwproducts/en/ATmega168pb
ATmega48/88/168 - www.microchip.com/wwwproducts/en/ATmega168

Table 5-3. Parallel Programming Characteristics
Symbol	Parameter	ATmega48/88/168		ATmega48PB/88PB/168PB		Units
Symbol	Parameter	Min.	Max.	Min.	Max.	Units
t_WLRH	WR Low to RDY/BSY High	3.7	4.5	3.2	3.4	ms
t_{WLRH_CE}	WR Low to RDY/BSY High for Chip Erase	7.5	9	9.8	10.5	ms
t_BVDV	BS1 Valid to DATA valid	0	250	0	350	ns
t_OLDV	OE Low to DATA Valid	0	250	0	350	ns

Table 5-4. Typical Wait Delay Before Writing the Next Flash or EEPROM Location
Symbol	ATmega48/88/168	ATmega48PB/88PB/168PB	Units
t_{WD_FLASH}	4.5	2.6	ms
t_{WD_EEPROM}	3.6	3.6	ms
t_{WD_ERASE}	9.0	10.5	ms
t_{WD_FUSE}	-	4.5	ms