| Parameters | 
                                    
                                                                                                                        
                                                | Mfr | 
                                                Renesas Electronics America Inc | 
                                            
                                                                                    
                                                | Series | 
                                                R8C/3x/32D | 
                                            
                                                                                    
                                                | Package | 
                                                Tube | 
                                            
                                                                                    
                                                | Product Status | 
                                                Not For New Designs | 
                                            
                                                                                    
                                                | Core Processor | 
                                                R8C | 
                                            
                                                                                    
                                                | Core Size | 
                                                16-Bit | 
                                            
                                                                                    
                                                | Speed | 
                                                20MHz | 
                                            
                                                                                    
                                                | Connectivity | 
                                                I²C, LINbus, SIO, SSU, UART/USART | 
                                            
                                                                                    
                                                | Peripherals | 
                                                POR, PWM, Voltage Detect, WDT | 
                                            
                                                                                    
                                                | Number of I/O | 
                                                15 | 
                                            
                                                                                    
                                                | Program Memory Size | 
                                                4KB (4K x 8) | 
                                            
                                                                                    
                                                | Program Memory Type | 
                                                FLASH | 
                                            
                                                                                    
                                                | EEPROM Size | 
                                                - | 
                                            
                                                                                    
                                                | RAM Size | 
                                                1K x 8 | 
                                            
                                                                                    
                                                | Voltage - Supply (Vcc/Vdd) | 
                                                1.8V ~ 5.5V | 
                                            
                                                                                    
                                                | Data Converters | 
                                                A/D 4x10b | 
                                            
                                                                                    
                                                | Oscillator Type | 
                                                Internal | 
                                            
                                                                                    
                                                | Operating Temperature | 
                                                -40°C ~ 85°C (TA) | 
                                            
                                                                                    
                                                | Mounting Type | 
                                                Surface Mount | 
                                            
                                                                                    
                                                | Package / Case | 
                                                20-LSSOP (0.173", 4.40mm Width) | 
                                            
                                                                                    
                                                | Supplier Device Package | 
                                                20-LSSOP | 
                                            
                                                                                    
                                                | Base Product Number | 
                                                R5F21321 | 
                                            
                                                                                    
                                                | RoHS Status | 
                                                ROHS3 Compliant | 
                                            
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 
                                                3  (168 Hours) | 
                                            
                                                                                    
                                                | REACH Status | 
                                                REACH Affected | 
                                            
                                                                                    
                                                | ECCN | 
                                                EAR99 | 
                                            
                                                                                    
                                                | HTSUS | 
                                                8542.31.0001 | 
                                            
                                                                                    
                                                | Standard Package | 
                                                80 | 
                                            
                                                                                                                
                                
                             
                                                R8C R8C/3x/32D Microcontroller IC 16-Bit 20MHz 4KB (4K x 8) FLASH 20-LSSOP