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Bypass the VDD

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Electrical Design Considerations

56F801 Technical Data, Rev. 17

Freescale Semiconductor

Bypass the VDD and VSS layers of the PCB with approximately 100 μF, preferably with a high-grade

capacitor such as a tantalum capacitor.

Because the controller’s output signals have fast rise and fall times, PCB trace lengths should be minimal.

Consider all device loads as well as parasitic capacitance due to PCB traces when calculating capacitance.

This is especially critical in systems with higher capacitive loads that could create higher transient currents

in the VDD and GND circuits.

Take special care to minimize noise levels on the VREF, VDDA and VSSA pins.

Designs that utilize the TRST pin for JTAG port or OnCE module functionality (such as development or

debugging systems) should allow a means to assert TRST whenever RESET is asserted, as well as a means

to assert TRST independently of RESET. TRST must be asserted at power up for proper operation. Designs

that do not require debugging functionality, such as consumer products, TRST should be tied low.

Because the Flash memory is programmed through the JTAG/OnCE port, designers should provide an

interface to this port to allow in-circuit Flash programming.

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
DSP56F801EVMUM	制造商:未知廠家制造商全稱:未知廠家功能描述:56F801 Evaluation Module Hardware User＇s Manual
DSP56F801FA60	功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 60Mhz/30MIPS RoHS:否制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
DSP56F801FA60E	功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER RoHS:否制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
DSP56F801FA60E	制造商:Freescale Semiconductor 功能描述:Digital Signal Processor IC DSP Type:Pro
DSP56F801FA60E	制造商:Freescale Semiconductor 功能描述:DIGITAL SIGNAL PROCESSORLQFP3.6V

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