DSP56F827FG80 查看數據表（PDF） - Motorola => Freescale
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DSP56F827FG80 Datasheet PDF : 52 Pages
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Freescale Semiconductor, Inc.
Signals and Package Information
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 3. 56F827 Signal and Package Information for the 128 Pin LQFP
Signal Name Pin No.
Type
Description
VDD
VDD
VDD
VDDA
VDDA_ADC
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
VSS
VSS
VSS
VSSA
VSSA_ADC
VSSIO
VSSIO
VSSIO
VSSIO
VSSIO
TCS
116
VDD
Power—These pins provide power to the internal structures of the chip,
and are generally connected to a 2.5V supply.
81
VDD
19
VDD
62
VDDA
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.
69
VDDA
Analog Power—This pin is a dedicated power pin for the analog
portion of the ADC module and should be connected to a low-noise
3.3V supply.
113
VDDIO
Power In/Out—These pins provide power to the I/O structures of the
chip, and are generally connected to a 3.3V supply.
82
VDDIO
56
VDDIO
29
VDDIO
4
VDDIO
115
VSS
GND—These pins provide grounding for the internal structures of the
chip. All should be attached to VSS.
80
VSS
20
VSS
61
VSSA
Analog Ground—This pin supplies an analog ground.
63
VSSA
Analog Ground—This pin is a dedicated ground pin for the analog
portion of the ADC module.
114
VSSIO
GND In/Out—These pins provide grounding for the I/O ring on the chip.
83
VSSIO
All should be attached to VSS.
58
VSSIO
30
VSSIO
5
VSSIO
43
Input/Output TCS—This pin is reserved for factory use. It must be tied to VSS for
(Schmitt) normal use. In block diagrams, this pin is considered an additional VSS.
56F827 Technical Data
7
For More Information On This Product,
Go to: www.freescale.com
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