311
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
27.7.15
Parallel Programming Characteristics
Notes:
1.
tWLRH is valid for the Write Flash, Write EEPROM, Write Fuse bits and Write Lock bits
commands.
2.
tWLRH_CE is valid for the Chip Erase command.
Table 27-14. Parallel programming characteristics, V
CC = 5V ±10%.
Symbol
Parameter
Min.
Typ.
Max.
Units
VPP
Programming Enable Voltage
11.5
12.5
V
IPP
Programming Enable Current
250
A
tDVXH
Data and Control Valid before XTAL1 High
67
ns
tXLXH
XTAL1 Low to XTAL1 High
200
tXHXL
XTAL1 Pulse Width High
150
tXLDX
Data and Control Hold after XTAL1 Low
67
tXLWL
XTAL1 Low to WR Low
0
tXLPH
XTAL1 Low to PAGEL high
0
tPLXH
PAGEL low to XTAL1 high
150
tBVPH
BS1 Valid before PAGEL High
67
tPHPL
PAGEL Pulse Width High
150
tPLBX
BS1 Hold after PAGEL Low
67
tWLBX
BS2/1 Hold after WR Low
67
tPLWL
PAGEL Low to WR Low
67
tBVWL
BS2/1 Valid to WR Low
67
tWLWH
WR Pulse Width Low
150
tWLRL
WR Low to RDY/BSY Low
0
1
s
tWLRH
3.7
4.5
ms
tWLRH_CE
WR Low to RDY/BSY High for Chip Eras
e7.5
9
tXLOL
XTAL1 Low to OE Low
0
ns
tBVDV
BS1 Valid to DATA valid
0
250
tOLDV
OE Low to DATA Valid
250
tOHDZ
OE High to DATA Tri-stated
250