Single-Ended I/O Standards Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Single-Ended SSTL, HSTL, and HSUL I/O Reference Voltage Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Single-Ended SSTL, HSTL, and HSUL I/O Standards Signal Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Differential SSTL I/O Standards Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Differential HSTL and HSUL I/O Standards Specifications
                                                                
                                                                
                                                            
                                                                
                                                                
                                                                    Differential I/O Standards Specifications
                                                                
                                                                
                                                            
                                                        
                                                    
                                                
                                                
                                                    
                                                    
                                                        High-Speed I/O Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        DPA Lock Time Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        LVDS Soft-CDR/DPA Sinusoidal Jitter Tolerance Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        Memory Standards Supported by the Hard Memory Controller
                                                    
                                                    
                                                
                                                    
                                                    
                                                        DLL Range Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        DQS Logic Block Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        Memory Output Clock Jitter Specifications
                                                    
                                                    
                                                
                                                    
                                                    
                                                        OCT Calibration Block Specifications
                                                    
                                                    
                                                
                                            
                                        
                                    
                                    
                                        
                                        
                                            POR Specifications
                                        
                                        
                                    
                                        
                                        
                                            JTAG Configuration Timing
                                        
                                        
                                    
                                        
                                            FPP Configuration Timing
                                        
                                        
                                        
                                    
                                        
                                        
                                            AS Configuration Timing
                                        
                                        
                                    
                                        
                                        
                                            DCLK Frequency Specification in the AS Configuration Scheme
                                        
                                        
                                    
                                        
                                        
                                            PS Configuration Timing
                                        
                                        
                                    
                                        
                                        
                                            Initialization
                                        
                                        
                                    
                                        
                                        
                                            Configuration Files
                                        
                                        
                                    
                                        
                                        
                                            Minimum Configuration Time Estimation
                                        
                                        
                                    
                                        
                                        
                                            Remote System Upgrades
                                        
                                        
                                    
                                        
                                        
                                            User Watchdog Internal Circuitry Timing Specifications
                                        
                                        
                                    
                                
                            Internal Weak Pull-Up and Weak Pull-Down Resistor
All I/O pins, except configuration, test, and JTAG pins, have an option to enable weak pull-up. The weak pull-down feature is only available for the pins as described in the Internal Weak Pull-Down Resistor Values for Intel® Cyclone® 10 GX Devices table.
| Symbol | Description | Condition (V) 18 | Value 19 | Unit | 
|---|---|---|---|---|
| RPU | Value of the I/O pin pull-up resistor before and during configuration, as well as user mode if you have enabled the programmable pull-up resistor option. | VCCIO = 3.0 ±5% | 25 | kΩ | 
| VCCIO = 2.5 ±5% | 25 | kΩ | ||
| VCCIO = 1.8 ±5% | 25 | kΩ | ||
| VCCIO = 1.5 ±5% | 25 | kΩ | ||
| VCCIO = 1.35 ±5% | 25 | kΩ | ||
| VCCIO = 1.25 ±5% | 25 | kΩ | ||
| VCCIO = 1.2 ±5% | 25 | kΩ | 
| Pin Name | Description | Condition (V) | Value 19 | Unit | 
|---|---|---|---|---|
| nIO_PULLUP | Dedicated input pin that determines the internal pull-ups on user I/O pins and dual-purpose I/O pins. | VCC = 0.9 ±3.33% | 25 | kΩ | 
| TCK | Dedicated JTAG test clock input pin. | VCCPGM = 1.8 ±5 % | 25 | kΩ | 
| VCCPGM = 1.5 ±5% | 25 | kΩ | ||
| VCCPGM = 1.2 ±5% | 25 | kΩ | ||
| MSEL[0:2] | Configuration input pins that set the configuration scheme for the FPGA device. | VCCPGM = 1.8 ±5% | 25 | kΩ | 
| VCCPGM = 1.5 ±5% | 25 | kΩ | ||
| VCCPGM = 1.2 ±5% | 25 | kΩ | 
   Related Information
   
 
    
  
 
 
  18 Pin pull-up resistance values may be lower if an external source drives the pin higher than VCCIO. 
 
 
 
  19 Valid with ±25% tolerances to cover changes over PVT.