Parallel programming characteristics, Attiny28l/v – Rainbow Electronics ATtiny28L User Manual
Page 51
51
ATtiny28L/V
1062E–10/01
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
W
rite
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