參數資料
型號: SPAK56F826BU80
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 數字信號處理
英文描述: 16-BIT, 80 MHz, OTHER DSP, PQFP100
封裝: LQFP-100
文件頁數: 51/53頁
文件大?。?/td> 829K
代理商: SPAK56F826BU80
Signals and Package Information
MOTOROLA
DSP56F826 Preliminary Technical Data
7
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. DSP56F826 Signal and Package Information for the 100 Pin LQFP
Signal
Name
Pin No.
Type
Description
VDD
20
VDD
Power—These pins provide power to the internal structures of the
chip, and are generally connected to a 2.5V supply.
VDD
64
VDD
94
VDD
VSS
19
VSS
GND—These pins provide grounding for the internal structures of the
chip. All should be attached to VSS.
VSS
63
VSS
95
VSS
VDDIO
5VDDIO
Power In/Out—These pins provide power to the I/O structures of the
chip, and are generally connected to a 3.3V supply.
VDDIO
30
VDDIO
57
VDDIO
80
VDDIO
VSSIO
6VSSIO
GND In/Out—These pins provide grounding for the I/O ring on the
chip. All should be attached to VSS.
VSSIO
31
VSSIO
58
VSSIO
81
VSSIO
VDDA
59
VDDA
Analog Power—This pin supplies an analog power source and is
generally connected to a 3.3V supply.
VSSA
60
VSSA
Analog Ground—This pin supplies an analog ground.
EXTAL
61
Input
External Crystal Oscillator Input—This input should be connected
to an 4MHz external crystal or ceramic resonator. For more
information, please refer to Section 3.6.
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