| Parameters | 
                                    
                                                                                                                        
                                                | Mfr | 
                                                Analog Devices Inc./Maxim Integrated | 
                                            
                                                                                    
                                                | Series | 
                                                89C | 
                                            
                                                                                    
                                                | Package | 
                                                Tube | 
                                            
                                                                                    
                                                | Product Status | 
                                                Active | 
                                            
                                                                                    
                                                | Core Processor | 
                                                8051 | 
                                            
                                                                                    
                                                | Core Size | 
                                                8-Bit | 
                                            
                                                                                    
                                                | Speed | 
                                                25MHz | 
                                            
                                                                                    
                                                | Connectivity | 
                                                EBI/EMI, SIO, UART/USART | 
                                            
                                                                                    
                                                | Peripherals | 
                                                Power-Fail Reset, WDT | 
                                            
                                                                                    
                                                | Number of I/O | 
                                                32 | 
                                            
                                                                                    
                                                | Program Memory Size | 
                                                64KB (64K x 8) | 
                                            
                                                                                    
                                                | Program Memory Type | 
                                                FLASH | 
                                            
                                                                                    
                                                | EEPROM Size | 
                                                - | 
                                            
                                                                                    
                                                | RAM Size | 
                                                1K x 8 | 
                                            
                                                                                    
                                                | Voltage - Supply (Vcc/Vdd) | 
                                                4.5V ~ 5.5V | 
                                            
                                                                                    
                                                | Data Converters | 
                                                - | 
                                            
                                                                                    
                                                | Oscillator Type | 
                                                External | 
                                            
                                                                                    
                                                | Operating Temperature | 
                                                -40°C ~ 85°C (TA) | 
                                            
                                                                                    
                                                | Mounting Type | 
                                                Surface Mount | 
                                            
                                                                                    
                                                | Package / Case | 
                                                44-LCC (J-Lead) | 
                                            
                                                                                    
                                                | Supplier Device Package | 
                                                44-PLCC (16.59x16.59) | 
                                            
                                                                                    
                                                | Base Product Number | 
                                                DS89C450 | 
                                            
                                                                                    
                                                | RoHS Status | 
                                                ROHS3 Compliant | 
                                            
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 
                                                3  (168 Hours) | 
                                            
                                                                                    
                                                | REACH Status | 
                                                REACH Unaffected | 
                                            
                                                                                    
                                                | ECCN | 
                                                3A991A2 | 
                                            
                                                                                    
                                                | HTSUS | 
                                                8542.31.0001 | 
                                            
                                                                                    
                                                | Other Names | 
                                                -4941-DS89C450-QNG+ | 
                                            
                                                                                    
                                                | Standard Package | 
                                                28 | 
                                            
                                                                                                                
                                
                             
                                                8051 89C Microcontroller IC 8-Bit 25MHz 64KB (64K x 8) FLASH 44-PLCC (16.59x16.59)