| Parameters | 
                                                                                                                        
                                                | Mfr | STMicroelectronics | 
                                                                                    
                                                | Series | STR7 | 
                                                                                    
                                                | Package | Tray | 
                                                                                    
                                                | Product Status | Obsolete | 
                                                                                    
                                                | Core Processor | ARM7® | 
                                                                                    
                                                | Core Size | 32-Bit Single-Core | 
                                                                                    
                                                | Speed | 36MHz | 
                                                                                    
                                                | Connectivity | I²C, SPI, UART/USART | 
                                                                                    
                                                | Peripherals | DMA, POR, PWM, WDT | 
                                                                                    
                                                | Number of I/O | 112 | 
                                                                                    
                                                | Program Memory Size | 256KB (256K x 8) | 
                                                                                    
                                                | Program Memory Type | FLASH | 
                                                                                    
                                                | EEPROM Size | - | 
                                                                                    
                                                | RAM Size | 16K x 8 | 
                                                                                    
                                                | Voltage - Supply (Vcc/Vdd) | 4.5V ~ 5.5V | 
                                                                                    
                                                | Data Converters | A/D 16x10b | 
                                                                                    
                                                | Oscillator Type | Internal | 
                                                                                    
                                                | Operating Temperature | -40°C ~ 85°C (TA) | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Package / Case | 144-LFBGA | 
                                                                                    
                                                | Base Product Number | STR735 | 
                                                                                    
                                                | RoHS Status | ROHS3 Compliant | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                                    
                                                | REACH Status | REACH Unaffected | 
                                                                                    
                                                | ECCN | 3A991A2 | 
                                                                                    
                                                | HTSUS | 8542.31.0001 | 
                                                                                    
                                                | Standard Package | 184 | 
                                                                                                                
                                
                             
                                                ARM7® STR7 Microcontroller IC 32-Bit Single-Core 36MHz 256KB (256K x 8) FLASH