| Parameters | 
                                
                                                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            20-LCC (J-Lead) | 
                                        
                                                                            
                                            | Surface Mount | 
                                            YES | 
                                        
                                                                            
                                            | Number of Pins | 
                                            20 | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~85°C | 
                                        
                                                                            
                                            | Packaging | 
                                            Tube | 
                                        
                                                                            
                                            | Published | 
                                            1999 | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e0 | 
                                        
                                                                            
                                            | Part Status | 
                                            Obsolete | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3  (168 Hours) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            20 | 
                                        
                                                                            
                                            | ECCN Code | 
                                            3A991.B.1.A | 
                                        
                                                                            
                                            | Terminal Finish | 
                                            Tin/Lead (Sn85Pb15) | 
                                        
                                                                            
                                            | HTS Code | 
                                            8542.39.00.01 | 
                                        
                                                                            
                                            | Subcategory | 
                                            Flash Memories | 
                                        
                                                                            
                                            | Technology | 
                                            CMOS | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            3V~3.6V | 
                                        
                                                                            
                                            | Terminal Position | 
                                            QUAD | 
                                        
                                                                            
                                            | Terminal Form | 
                                            J BEND | 
                                        
                                                                            
                                            | Number of Functions | 
                                            1 | 
                                        
                                                                            
                                            | Supply Voltage | 
                                            3.3V | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            1.27mm | 
                                        
                                                                            
                                            | Base Part Number | 
                                            XC18V512 | 
                                        
                                                                            
                                            | Pin Count | 
                                            20 | 
                                        
                                                                            
                                            | Operating Supply Voltage | 
                                            3.3V | 
                                        
                                                                            
                                            | Supply Voltage-Max (Vsup) | 
                                            3.6V | 
                                        
                                                                            
                                            | Supply Voltage-Min (Vsup) | 
                                            3V | 
                                        
                                                                            
                                            | Programmable Type | 
                                            In System Programmable | 
                                        
                                                                            
                                            | Clock Frequency | 
                                            33MHz | 
                                        
                                                                            
                                            | Supply Current-Max | 
                                            0.025mA | 
                                        
                                                                            
                                            | Organization | 
                                            64KX8 | 
                                        
                                                                            
                                            | Memory Width | 
                                            8 | 
                                        
                                                                            
                                            | Density | 
                                            512 kb | 
                                        
                                                                            
                                            | Standby Current-Max | 
                                            0.01A | 
                                        
                                                                            
                                            | Access Time (Max) | 
                                            15 ns | 
                                        
                                                                            
                                            | Parallel/Serial | 
                                            PARALLEL/SERIAL | 
                                        
                                                                            
                                            | Memory IC Type | 
                                            CONFIGURATION MEMORY | 
                                        
                                                                            
                                            | Endurance | 
                                            10000 Write/Erase Cycles | 
                                        
                                                                            
                                            | Data Retention Time-Min | 
                                            10 | 
                                        
                                                                            
                                            | Height Seated (Max) | 
                                            4.572mm | 
                                        
                                                                            
                                            | Length | 
                                            8.9662mm | 
                                        
                                                                            
                                            | Width | 
                                            8.9662mm | 
                                        
                                                                            
                                            | Radiation Hardening | 
                                            No | 
                                        
                                                                            
                                            | RoHS Status | 
                                            Non-RoHS Compliant | 
                                        
                                                                            
                                            | Lead Free | 
                                            Contains Lead | 
                                        
                                                                                                    
                            
                         
                                                XC18V512PC20I Overview
This package is based on a neat 20-LCC (J-Lead) package which is used by it.Packaging for the external environment.As a qualified employee, I can operate within -40°C~85°C.With the help of In System Programmable, it can be programmed.The voltage fed to it is 3V~3.6V.Mounted in Surface Mount is this memory device.XC18V512 will give you other related parts.FPGA reuqires a supply voltage of 3.3V.Different functions can be assigned to 20 terminations.In order to use this memory device, a maximum voltage of 3.6V should be used.If the device needs to be supplied with power, then a minimum voltage of 3V is required.The memory chip in question is a CONFIGURATION MEMORY memory chip.FPGA has pins on the 20 axis.As a result of the PARALLEL/SERIAL process, data is transmitted from this memory.In order for a memory chip to operate, it must not be subjected to a voltage greater than 0.025mA.Parts come with 20 pins.Using a 33MHz frequency, this memory IC can work at high speeds.In order for the part to function safely and reliably as part of a circuit, 3.3V recommends that users apply 3.3V to the part prior to use in order to ensure that it will work properly.In specific, it can be described as a form of Flash Memories.
XC18V512PC20I Features
Operating temperature: -40°C~85°C.
In System Programmable program capability.
CONFIGURATION MEMORY memory IC.
PARALLEL/SERIAL processing.
XC18V512PC20I Applications
There are a lot of Xilinx Inc. XC18V512PC20I  applications of configuration proms for FPGAs. 
- networks
 - telecommunications
 - main computer memory
 - Camcorders
 - eDRAM
 - data buffer
 - eSRAM
 - personal computers
 - multimedia computers
 - graphics card