參數(shù)資料
      

      


      


      
型號(hào)：
PSD302-20J

      

      
廠商：
意法半導(dǎo)體

      

      
英文描述：
Low Cost Field Programmable Microcontroller Peripherals

      

      
中文描述：
低成本現(xiàn)場(chǎng)可編程微控制器外圍設(shè)備

      

      
文件頁(yè)數(shù)：
13/85頁(yè)

      

      
文件大?。?/td>
691K

      

      
代理商：
PSD302-20J


      

      

      

	
      
    
    

    
      
	
      PSD3XX Famly
      10
      8.0
      Operating
      Modes (MCU
      Configurations)
      The PSD3XX’s four operating modes enable it to interface directly to most 8- and 16-bit
      microcontrollers with multiplexed and non-multiplexed address/data busses.  The 16-bit
      modes are not available to some devices; see Table 1.  The following are the four operating
      modes available:
      J
       Multiplexed 8-bit address/data bus
      J
       Multiplexed 16-bit address/data bus
      J
       Non-multiplexed 8-bit data bus
      J
       Non-multiplexed 16-bit data bus
      Please read the section below that corresponds to your type of MCU. Then check the 
      appropriate Figure (3A/3B/3C/3D) to determine your pin connections. Table 3 lists the Port
      connections in tabular form.
      Multiplexed 8-bit address/data bus (Figure 3A)
      This mode is used to interface to microcontrollers with a multiplexed 8-bit data bus. Since 
      the low-order address and data are multiplexed together, your MCU will output an ALE 
      or AS signal. The PSD3XX contains a transparent latch to demultiplex the address/data
      lines internally. All you have to do is connect the ALE/AS signal and select 8-bit multiplexed
      bus mode in PSDsoft. If your MCU outputs more than 16 bits of address, and you 
      wish to connect them to the PSD, connect A16-A18 to Port C and A19 to A19/CSI, where
      applicable.
      Multiplexed 16-bit address/data bus (Figure 3B)
      This mode is used to interface to microcontrollers with a multiplexed 16-bit data bus. Since 
      the low address bytes and data are multiplexed together, your MCU will output an ALE 
      or AS signal. The PSD3XX contains a transparent latch to demultiplex the address/data
      lines internally. All you have to do is connect the ALE/AS signal and select 8-bit multiplexed
      bus mode in PSDsoft. If your MCU outputs more than 16 bits of address, and you 
      wish to connect them to the PSD, connect A16-A18 to Port C and A19 to A19/CSI, where
      applicable.
      Non-multiplexed 8-bit data bus (Figure 3C)
      This mode is used to interface to microcontrollers with a non-multiplexed 8-bit data bus. 
      Connect the MCU’s address bus to AD0/A0-AD15/A15 on the PSD.  Connect the data bus
      signals of your MCU to Port A of the PSD. If your MCU outputs more than 16 bits of
      address, and you wish to connect them to the PSD, connect A16-A18 to Port C and A19 to
      A19/CSI, where applicable.
      Non-multiplexed 16-bit data bus (Figure 3D)
      This mode is used to interface to microcontrollers with a non-multiplexed 16-bit data bus. 
      Connect the MCU’s address bus to AD0/A0-AD15/A15 on the PSD.  Connect the low byte
      data bus signals of your MCU to Port A, and the high byte data output of your MCU to Port
      B of the PSD. If your MCU outputs more than 16 bits of address, and you wish to connect
      them to the PSD, connect A16-A18 to Port C and A19 to A19/CSI, where applicable.
      For users with multiplexed MCUs that have data multiplexed on address lines other 
      than A0-A7 note:
       You can still use the PSD3XX, but you will have to connect your 
      data to Port A (and Port B where required), as shown in Figure 3C or 3D. That is, you will 
      be connecting it as if you were using a non-multiplexed MCU. In this case, you must 
      connect the ALE/AS signal so that the address will still be properly latched. This option is 
      not available on the 3X1 versions.
      
    
      
    
    
      


      


      

      相關(guān)PDF資料
      		

      PDF描述
      		

      
      

      
PSD302-20JI
Low Cost Field Programmable Microcontroller Peripherals

      

      
PSD302-20JM
Low Cost Field Programmable Microcontroller Peripherals

      

      
PSD302-25J
Low Cost Field Programmable Microcontroller Peripherals

      

      
PSD302-25JI
Low Cost Field Programmable Microcontroller Peripherals

      

      
PSD302-25JM
Low Cost Field Programmable Microcontroller Peripherals

      

      

      

      


      


      

      相關(guān)代理商/技術(shù)參數(shù)
      		

      參數(shù)描述
      		

      
      

      
PSD302-20JI
 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals

      

      
PSD302-20JM
 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals

      

      
PSD302-20LI
 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral

      

      
PSD302-20LM
 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral

      

      
PSD302-20Q
 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral

      

      
    
    
    
	
      	
    
    
     
     
      發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。
      
 
     
      

   	  
      
     

      
                    			    				      
      
                
      
                  
      
                    
                    
      
                      
      
                      
                      
      采購(gòu)需求
        (若只采購(gòu)一條型號(hào)，填寫一行即可)
      
                      
                      
      發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)
      
                      
                      
      發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)
      
                       
                        
      
                                
                                
      
                                    *型號(hào)
                                    *數(shù)量
                                    廠商
                                    批號(hào)
                                    封裝
                                  
      
                                      
                                
                                
      
                                    
                                        
      
                                            
                                            
                                        
      
                                          		
                                     
                                    
                                        
      
                                          		
                                    
                                        
      
                                          		
                                    
                                        
      
                                          		
                                    
                                        
      
                                          		
                                  
      
                                  
                                   
                                      
                            
      
                             
                             
							                            
      
                          添加更多采購(gòu)
      
                      
      
                      
                      
      
                      
                      
      我的聯(lián)系方式
      
                     
                     
                       
      
                                
                                
                                
      
                                    
                                         *
                                    
                                    
                                  
      
                                  
                                  
      
                                    
                                         *
                                    
                                    
                                  
      
                                  
                                  
      
                                    
                                        
                                    
                                    
                                  
      
                                  
                                  
      
                                    
                                         *