Owner manual

187
ATmega8515(L)
2512A–AVR–04/02
Figure 81. Parallel P rogramming Timing,Loading Se quence with Timing
Requirements
(1)
Note: 1. The timing requirementsshowninFigure80(i.e. t
DVXH
, t
XHXL
, and t
XLDX
) alsoapply
to loading operation.
Figure 82. Parallel Programming Timing, Reading Sequence (within the same Page)
with Timing Requirements
(1)
Note: 1. The timing requirementsshowninFigure80(i.e. t
DVXH
, t
XHXL
, and t
XLDX
) alsoapply
to reading operation.
Table 91. Parallel Programming Characteristics, V
CC
= 5V ± 10%
Symbol Parameter Min Typ Max Units
V
PP
Programming EnableVoltage 11.5 12.5 V
I
PP
Programming Enable Current 250 µA
t
DVXH
Data andControl Validbefore XTA L1 High67 ns
t
XLXH
XTA L1 Low to XTAL1 High 200 ns
t
XHXL
XTA L1Pulse WidthHigh 150 ns
t
XLDX
Data andControlHold afterXTA L1 Low67 ns
XTAL1
PAGEL
t
PLXH
XLXH
t
t
XLPH
ADDR0 (Low Byte) DATA (Low Byte) DATA (High Byte) ADDR1 (Low Byte)
DATA
BS1
XA0
XA1
LOAD ADDRESS
(LOW BYTE)
LOAD DATA
(LOW BYTE)
LOAD DATA
(HIGH BYTE)
LOAD DATA
LOAD ADDRESS
(LOW BYTE)
XTAL1
OE
ADDR0 (Low Byte) DATA (Low Byte)
DATA (High Byte)
ADDR1 (Low Byte)
DATA
BS1
XA0
XA1
LOAD ADDRESS
(LOW BYTE)
READ DATA
(LOW BYTE)
READ DATA
(HIGH BYTE)
LOAD ADDRESS
(LOW BYTE)
t
BVDV
t
OLDV
t
XLOL
t
OHDZ