參數(shù)資料
型號: MSC7110VF800
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 顯示控制器
英文描述: FLUORESCENT DSPL CTRL, PBGA400
封裝: 17 X 17 MM, BGA-400
文件頁數(shù): 36/56頁
文件大小: 702K
代理商: MSC7110VF800
Hardware Design Considerations
MSC7110 Low-Cost 16-bit DSP with DDR Controller Data Sheet, Rev. 11
Freescale Semiconductor
41
3.2.2.2
Case 2
The power-up sequence is as follows:
1.
Turn on the VDDIO (3.3 V) supply first.
2.
Turn on the VDDC (1.2 V) and VDDM (2.5 V) supplies simultaneously (second).
3.
Turn on the VREF (1.25 V) supply last (third).
Note:
Make sure that the time interval between the ramp-up of VDDIO and VDDC/VDDM is less than 10 ms.
The power-down sequence is as follows:
1.
Turn off the VREF (1.25 V) supply first.
2.
Turn off the VDDM (2.5 V) supply second.
3.
Turn off the VDDC (1.2 V) supply third.
4.
Turn of the VDDIO (3.3 V) supply fourth (last).
Use the following guidelines:
Make sure that the time interval between the ramp-down for VDDIO and VDDC is less than 10 ms.
Make sure that the time interval between the ramp-up or ramp-down for VDDC and VDDM is less than 10 ms for
power-up and power-down.
Refer to Figure 27 for relative timing for Case 2.
Figure 27. Voltage Sequencing Case 2
Time
Vo
lt
a
g
e
Ramp-down
Ramp-up
VDDIO = 3.3 V
VDDM = 2.5 V
VDDC = 1.2 V
VREF = 1.25 V
<10 ms
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:
MSC711XADS
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