| Parameters | 
                                
                                                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3 (168 Hours) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            44 | 
                                        
                                                                            
                                            | ECCN Code | 
                                            EAR99 | 
                                        
                                                                            
                                            | Terminal Finish | 
                                            Matte Tin (Sn) | 
                                        
                                                                            
                                            | HTS Code | 
                                            8542.31.00.01 | 
                                        
                                                                            
                                            | Subcategory | 
                                            Microcontrollers | 
                                        
                                                                            
                                            | Technology | 
                                            CMOS | 
                                        
                                                                            
                                            | Terminal Position | 
                                            QUAD | 
                                        
                                                                            
                                            | Terminal Form | 
                                            J BEND | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            260 | 
                                        
                                                                            
                                            | Supply Voltage | 
                                            5V | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            1.27mm | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            30 | 
                                        
                                                                            
                                            | Base Part Number | 
                                            DS87C520 | 
                                        
                                                                            
                                            | Pin Count | 
                                            44 | 
                                        
                                                                            
                                            | JESD-30 Code | 
                                            S-PQCC-J44 | 
                                        
                                                                            
                                            | Qualification Status | 
                                            Not Qualified | 
                                        
                                                                            
                                            | Supply Voltage-Max (Vsup) | 
                                            5.5V | 
                                        
                                                                            
                                            | Power Supplies | 
                                            5V | 
                                        
                                                                            
                                            | Supply Voltage-Min (Vsup) | 
                                            4.5V | 
                                        
                                                                            
                                            | Oscillator Type | 
                                            External | 
                                        
                                                                            
                                            | Number of I/O | 
                                            32 | 
                                        
                                                                            
                                            | Speed | 
                                            33MHz | 
                                        
                                                                            
                                            | RAM Size | 
                                            1K x 8 | 
                                        
                                                                            
                                            | Voltage - Supply (Vcc/Vdd) | 
                                            4.5V~5.5V | 
                                        
                                                                            
                                            | uPs/uCs/Peripheral ICs Type | 
                                            MICROCONTROLLER | 
                                        
                                                                            
                                            | Core Processor | 
                                            8051 | 
                                        
                                                                            
                                            | Peripherals | 
                                            Power-Fail Reset, WDT | 
                                        
                                                                            
                                            | Clock Frequency | 
                                            33MHz | 
                                        
                                                                            
                                            | Program Memory Type | 
                                            OTP | 
                                        
                                                                            
                                            | Core Size | 
                                            8-Bit | 
                                        
                                                                            
                                            | Program Memory Size | 
                                            16KB 16K x 8 | 
                                        
                                                                            
                                            | Connectivity | 
                                            EBI/EMI, SIO, UART/USART | 
                                        
                                                                            
                                            | Bit Size | 
                                            8 | 
                                        
                                                                            
                                            | Has ADC | 
                                            NO | 
                                        
                                                                            
                                            | DMA Channels | 
                                            NO | 
                                        
                                                                            
                                            | PWM Channels | 
                                            NO | 
                                        
                                                                            
                                            | DAC Channels | 
                                            NO | 
                                        
                                                                            
                                            | Address Bus Width | 
                                            16 | 
                                        
                                                                            
                                            | ROM (words) | 
                                            16384 | 
                                        
                                                                            
                                            | External Data Bus Width | 
                                            8 | 
                                        
                                                                            
                                            | Height Seated (Max) | 
                                            4.572mm | 
                                        
                                                                            
                                            | Length | 
                                            16.585mm | 
                                        
                                                                            
                                            | Width | 
                                            16.585mm | 
                                        
                                                                            
                                            | RoHS Status | 
                                            Non-RoHS Compliant | 
                                        
                                                                            
                                            | Lead Free | 
                                            Contains Lead | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            44-LCC (J-Lead) | 
                                        
                                                                            
                                            | Surface Mount | 
                                            YES | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            0°C~70°C TA | 
                                        
                                                                            
                                            | Packaging | 
                                            Tube | 
                                        
                                                                            
                                            | Published | 
                                            2001 | 
                                        
                                                                            
                                            | Series | 
                                            87C | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e3 | 
                                        
                                                                            
                                            | Pbfree Code | 
                                            yes | 
                                        
                                                                            
                                            | Part Status | 
                                            Obsolete | 
                                        
                                                                                                    
                            
                         
                                                DS87C520-QCL Overview
For space savings, it is available in the 44-LCC (J-Lead) package. It is mounted using the way of Surface Mount. In the package Tube, it is included. Device with 8051 core processor issupported. It is important to keep the temperature at 0°C~70°C TA while working. In terms of its program memory type, it is OTP. It has a number of 32I/Os. It has a part number of DS87C520 that can be used to locate similar components. A QUAD position is assigned to its terminals. 44 terminations are present in it. It is a member of the 87C series of electrical components. The 5V supply voltage enables high efficiency. In this gadget, MICROCONTROLLER is the device's uPs/uCs/Peripheral IC. There are a total of 44 pins on it. In the subcategory of Microcontrollers, this component is included. Power comes from a source of 5V. In the device, the clock runs at 33MHz. Normally, the supply voltage (Vsup) should remain above 4.5V. Using an oscillator type External, it operates. 
DS87C520-QCL Features
44-LCC (J-Lead) package
Mounting type of Surface Mount
Microcontrollers subcategory
DS87C520-QCL Applications
There are a lot of Maxim Integrated DS87C520-QCL Microcontroller applications. 
- Robots
 - Smartphone
 - Oil and gas
 - PDAs, game consoles
 - Computer/laptop
 - Electronic jamming systems
 - Current meter
 - Switches
 - Air fryers 
 - Volt meter