Appendix A Electrical Characteristics
MC9S12XE-Family Reference Manual Rev. 1.19
Freescale Semiconductor
1249
Figure A-14. Example 1b: Normal Expanded Mode — Stretched Write Access
Table A-31. Example 1b: Normal Expanded Mode Timing at 50MHz bus (EWAIT enabled)
No.
Characteristic
Symbol
V
DD5
= 5.0V
V
DD5
= 3.3V
Unit
C
2 stretch
cycles
3 stretch
cycles
C
2 stretch
cycles
3 stretch
cycles
Min
Max
Min
Max
Min
Max
Min
Max
-
Frequency of internal bus
f
i
-
D.C.
50.0
D.C.
50.0
-
D.C.
25.0
D.C.
25.0
MHz
-
Internal cycle time
t
cyc
-
20
∞
20
∞
-
20
∞
20
∞
ns
-
Frequency of external bus
f
o
-
D.C.
16.7
D.C.
12.5
-
D.C.
8.33
D.C.
6.25
MHz
CSx
ADDRx
RE
DATAx
(Write) DATA1
WE
EWAIT
UDS, LDS
5
1
9
10
11
4
ADDR1
ADDR2
12
13
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
S12XE
products
in
208
MAPBGA
packages
