ATMEGA328P-20AU Datasheet, PDF (320/420 Pages) ATMEL Corporation – 8-bit Atmel Microcontroller with 4/8/16K Bytes In-System Programmable Flash

29.9 Parallel Programming Characteristics
Table 29-8. Parallel Programming Characteristics, V_CC = 5V ± 10%
Symbol
Parameter
Min
Typ
Max
Units
V_PP
I_PP
t_DVXH
t_XLXH
t_XHXL
t_XLDX
t_XLWL
t_XLPH
t_PLXH
t_BVPH
t_PHPL
t_PLBX
t_WLBX
t_PLWL
t_BVWL
t_WLWH
t_WLRL
t_WLRH
t_{WLRH_CE}
t_XLOL
t_BVDV
t_OLDV
t_OHDZ
Programming Enable Voltage
Programming Enable Current
Data and Control Valid before XTAL1 High
XTAL1 Low to XTAL1 High
XTAL1 Pulse Width High
Data and Control Hold after XTAL1 Low
XTAL1 Low to WR Low
XTAL1 Low to PAGEL high
PAGEL low to XTAL1 high
BS1 Valid before PAGEL High
PAGEL Pulse Width High
BS1 Hold after PAGEL Low
BS2/1 Hold after WR Low
PAGEL Low to WR Low
BS1 Valid to WR Low
WR Pulse Width Low
WR Low to RDY/BSY Low
WR Low to RDY/BSY High⁽¹⁾
WR Low to RDY/BSY High for Chip Erase⁽²⁾
XTAL1 Low to OE Low
BS1 Valid to DATA valid
OE Low to DATA Valid
OE High to DATA Tri-stated
11.5
67
200
150
67
0
0
150
67
150
67
67
67
67
150
0
3.7
7.5
0
0
12.5
V
250
μA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1
μs
4.5
ms
9
ms
ns
250
ns
250
ns
250
ns
Notes: 1. t_WLRH is valid for the Write Flash, Write EEPROM, Write Fuse bits and Write Lock bits
commands.
2. t_{WLRH_CE} is valid for the Chip Erase command.
320 ATmega48P/88P/168P
8025M–AVR–6/11