| Parameters | 
                                    
                                                                                                                        
                                                | Mfr | 
                                                NXP Semiconductors | 
                                            
                                                                                    
                                                | Series | 
                                                - | 
                                            
                                                                                    
                                                | Package | 
                                                Bulk | 
                                            
                                                                                    
                                                | Product Status | 
                                                Obsolete | 
                                            
                                                                                    
                                                | Core Processor | 
                                                ARM720T™ RISC | 
                                            
                                                                                    
                                                | Core Size | 
                                                32-Bit | 
                                            
                                                                                    
                                                | Speed | 
                                                77.4144MHz | 
                                            
                                                                                    
                                                | Connectivity | 
                                                EBI/EMI, IrDA, Microwire, SPI, SSI, SSP, UART/USART | 
                                            
                                                                                    
                                                | Peripherals | 
                                                DMA, LCD, PWM, WDT | 
                                            
                                                                                    
                                                | Number of I/O | 
                                                64 | 
                                            
                                                                                    
                                                | Program Memory Size | 
                                                - | 
                                            
                                                                                    
                                                | Program Memory Type | 
                                                ROMless | 
                                            
                                                                                    
                                                | EEPROM Size | 
                                                - | 
                                            
                                                                                    
                                                | RAM Size | 
                                                32K x 8 | 
                                            
                                                                                    
                                                | Voltage - Supply (Vcc/Vdd) | 
                                                1.62V ~ 1.98V | 
                                            
                                                                                    
                                                | Data Converters | 
                                                - | 
                                            
                                                                                    
                                                | Oscillator Type | 
                                                Internal | 
                                            
                                                                                    
                                                | Operating Temperature | 
                                                -40°C ~ 85°C (TA) | 
                                            
                                                                                    
                                                | Mounting Type | 
                                                Surface Mount | 
                                            
                                                                                    
                                                | Package / Case | 
                                                176-LQFP | 
                                            
                                                                                    
                                                | Supplier Device Package | 
                                                176-LQFP (20x20) | 
                                            
                                                                                    
                                                | Other Names | 
                                                2156-LH79520N0Q000B1;55 | 
                                            
                                                                                    
                                                | Standard Package | 
                                                41 | 
                                            
                                                                                                                
                                
                             
                                                ARM720T™ RISC - Microcontroller IC 32-Bit 77.4144MHz ROMless 176-LQFP (20x20)