8-bit Microcontroller with with Multi-Input Wake Up and Brown Detecter The part **COP87L20CJM-2N** is manufactured by **National Semiconductor (NS)**.

### Key Specifications:
- **Manufacturer:** National Semiconductor (NS)  
- **Part Number:** COP87L20CJM-2N  
- **Core:** 8-bit microcontroller  
- **Architecture:** COP8 family  
- **Operating Voltage:** Typically 2.7V to 5.5V  
- **Clock Speed:** Up to 10 MHz  
- **Program Memory (ROM):** 2 KB  
- **RAM:** 128 bytes  
- **I/O Pins:** 20  
- **Package:** PLCC (Plastic Leaded Chip Carrier)  
- **Operating Temperature Range:** Commercial (0°C to +70°C)  

This part is now obsolete and may not be available from the original manufacturer.  

Would you like additional details from the datasheet?