| Parameters | 
                                                                                                            
                                        | Mfr | Lumissil Microsystems | 
                                                                        
                                        | Series | - | 
                                                                        
                                        | Package | Tube | 
                                                                        
                                        | Product Status | Active | 
                                                                        
                                        | Core Processor | 8051 | 
                                                                        
                                        | Core Size | 8-Bit | 
                                                                        
                                        | Speed | 24MHz | 
                                                                        
                                        | Connectivity | I²C, LINbus, SPI, UART/USART | 
                                                                        
                                        | Peripherals | LVD, LVR, POR, PWM, WDT | 
                                                                        
                                        | Number of I/O | 20 | 
                                                                        
                                        | Program Memory Size | 64KB (64K x 8) | 
                                                                        
                                        | Program Memory Type | FLASH | 
                                                                        
                                        | EEPROM Size | - | 
                                                                        
                                        | RAM Size | 2K x 8 | 
                                                                        
                                        | Voltage - Supply (Vcc/Vdd) | 2.5V ~ 5.5V | 
                                                                        
                                        | Data Converters | A/D 7x12b SAR; D/A 1x10b | 
                                                                        
                                        | Oscillator Type | External, Internal | 
                                                                        
                                        | Operating Temperature | -40°C ~ 85°C (TA) | 
                                                                        
                                        | Mounting Type | Surface Mount | 
                                                                        
                                        | Package / Case | 24-TSSOP (0.173", 4.40mm Width) | 
                                                                        
                                        | Supplier Device Package | 24-TSSOP | 
                                                                        
                                        | Base Product Number | IS31CS8964 | 
                                                                        
                                        | RoHS Status | ROHS3 Compliant | 
                                                                        
                                        | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                        
                                        | REACH Status | REACH Unaffected | 
                                                                        
                                        | ECCN | EAR99 | 
                                                                        
                                        | HTSUS | 8542.31.0001 | 
                                                                        
                                        | Other Names | 2521-IS31CS8964A-ZNLS2 | 
                                                                        
                                        | Standard Package | 60 | 
                                                                                                        
                            
                         
                                                8051 - Microcontroller IC 8-Bit 24MHz 64KB (64K x 8) FLASH 24-TSSOP