參數(shù)資料
型號: DSP56F826E
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: 16-bit Digital Signal Controllers
中文描述: 16位數(shù)字信號控制器
文件頁數(shù): 10/56頁
文件大小: 700K
代理商: DSP56F826E
56F826 Technical Data, Rev. 14
10
Freescale Semiconductor
2.2 Signals and Package Information
All inputs have a weak internal pull-up circuit associated with them. These pull-up circuits are always
enabled. Exceptions:
1. When a pin is owned by GPIO, then the pull-up may be disabled under software control.
2. TCK has a weak pull-down circuit always active.
Table 2-1 56F826 Signal and Package Information for the 100 Pin LQFP
Signal
Name
Pin No.
Type
Description
V
DD
20
V
DD
Power
—These pins provide power to the internal structures of the chip, and are
generally connected to a 2.5V supply.
V
DD
64
V
DD
V
DD
94
V
DD
V
DDA
59
V
DDA
Analog Power
—This pin is a dedicated power pin for the analog portion of the
chip and should be connected to a low-noise 3.3V supply.
V
DDIO
5
V
DDIO
Power In/Out
—These pins provide power to the I/O structures of the chip, and
are generally connected to a 3.3V supply.
V
DDIO
30
V
DDIO
V
DDIO
57
V
DDIO
V
DDIO
80
V
DDIO
V
SS
19
V
SS
GND—
These pins provide grounding for the internal structures of the chip. All
should be attached to V
SS.
V
SS
63
V
SS
V
SS
95
V
SS
V
SSA
60
V
SSA
Analog Ground
—This pin supplies an analog ground.
V
SSIO
6
V
SSIO
GND In/Out
—These pins provide grounding for the I/O ring on the chip. All
should be attached to V
SS.
V
SSIO
31
V
SSIO
V
SSIO
58
V
SSIO
V
SSIO
81
V
SSIO
TCS
99
Input/Output
(Schmitt)
TCS
—This pin is reserved for factory use. It must be tied to V
SS
for normal use.
In block diagrams, this pin is considered an additional V
SS.
EXTAL
61
Input
External Crystal Oscillator Input
—This input should be connected to a 4MHz
external crystal or ceramic resonator. For more information, please refer to
Section 3.6
.
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