參數(shù)資料
型號: DSP56857BUE
廠商: Freescale Semiconductor
文件頁數(shù): 53/53頁
文件大小: 0K
描述: IC DSP 16BIT 120MHZ 100-LQFP
標(biāo)準(zhǔn)包裝: 90
系列: 568xx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 120MHz
連通性: SCI,SPI,SSI
外圍設(shè)備: DMA,POR,WDT
輸入/輸出數(shù): 47
程序存儲器容量: 80KB(40K x 16)
程序存儲器類型: SRAM
RAM 容量: 24K x 16
電壓 - 電源 (Vcc/Vdd): 1.62 V ~ 1.98 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-LQFP
包裝: 托盤
Introduction
56857 Technical Data, Rev. 6
Freescale Semiconductor
9
Part 3 Signals and Package Information
All digital inputs have a weak internal pull-up circuit associated with them. These pull-up circuits are
enabled by default. Exceptions:
1. When a pin has GPIO functionality, the pull-up may be disabled under software control.
2. MODE A, MODE B, and MODE C pins have no pull-up.
3. TCK has a weak pull-down circuit always active.
4. Bidirectional I/O pullups automatically disable when the output is enabled.
This table is presented consistently with the Signals Identified by Functional Group figure.
1. BOLD entries in the Type column represents the state of the pin just out of reset.
2. Output(Z) means an output in a High-Z condition.
Table 3-1 56857 Signal and Package Information for the 100-pin LQFP
Pin No.
Signal Name
Type
Description
8VDD
VDD
Power (VDD)—These pins provide power to the internal structures of the
chip, and should all be attached to VDD.
25
VDD
36
VDD
50
VDD
59
VDD
60
VDD
76
VDD
87
VDD
9VSS
VSS
Ground (VSS)—These pins provide grounding for the internal structures
of the chip and should all be attached to VSS.
37
VSS
38
VSS
61
VSS
88
VSS
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