Rainbow-electronics ATtiny28L Manual do Utilizador Página 51

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51
ATtiny28L/V
1062E10/01
Parallel Programming
Characteristics
Figure 39. Parallel Programming Timing
Parallel Programming Characteristics
T
A
= 25°C ± 10%, V
CC
= 5V ± 10%
Symbol Parameter Min Typ Max Unit
V
PP
Programming Enable Voltage 11.5 12.5 V
I
PP
Programming Enable Current 250.0 µA
t
DVXH
Data & Control Valid before XTAL1 High 67.0 ns
t
XHXL
XTAL1 Pulse Width High 67.0 ns
t
XLDX
Data & Control Hold after XTAL1 Low 67.0 ns
t
XLWL
XTAL1 Low to WR Low 67.0 ns
t
BVWL
BS Valid to WR Low 67.0 ns
t
RHBX
BS Hold after RDY/BSY High 67.0 ns
t
WLWH
WR Pulse Width Low 67.0 ns
t
WLRL
WR Low to RDY/BSY Low 0.0 2.5 µs
t
WLRH
WR Low to RDY/BSY High 0.5 0.7 0.9 ms
t
XLOL
XTAL1 Low to OE Low 67.0 ns
t
OLDV
OE Low to DATA Valid 20.0 ns
t
OHDZ
OE High to DATA Tri-stated 20.0 ns
Data & Contol
(DATA, XA0/1, BS)
DATA
Write
Read
XTAL1
t
XHXL
t
WLWH
t
DVXH
t
XLOL
t
OLDV
t
WLRL
t
WLRH
WR
RDY/BSY
OE
t
XLDX
t
XLWL
t
RHBX
t
OHDZ
t
BVWL
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