UPD71051 Serial Control Unit The UPD71051L is a microcontroller manufactured by NEC (now part of Renesas Electronics). Below are its specifications, descriptions, and features based on available information:
### **Specifications:**
- **Manufacturer:** NEC (Renesas Electronics)
- **Architecture:** 8-bit microcontroller
- **CPU Core:** 78K0 series
- **Clock Speed:** Up to 10 MHz
- **Operating Voltage:** 4.5V to 5.5V
- **ROM (Program Memory):** Mask ROM (size not specified in public datasheets)
- **RAM (Data Memory):** Internal RAM (size not specified in public datasheets)
- **I/O Ports:** Multiple general-purpose I/O pins
- **Timers:** Built-in timer/counter functions
- **Serial Communication:** UART (serial interface)
- **Interrupts:** Multiple interrupt sources
- **Package Type:** Likely DIP or other through-hole/SMD package (exact package not confirmed in public datasheets)
### **Descriptions:**
The UPD71051L is an 8-bit microcontroller from NEC's 78K0 family, designed for embedded control applications. It features a compact architecture with integrated peripherals, making it suitable for industrial, consumer, and automotive applications.
### **Features:**
- **High-Speed Processing:** Up to 10 MHz operation
- **Low Power Consumption:** Optimized for power-sensitive applications
- **Integrated Peripherals:** Includes timers, serial communication, and I/O ports
- **Reliable Operation:** Wide operating voltage range (4.5V–5.5V)
- **Mask ROM:** Provides secure, non-volatile program storage
Note: Detailed specifications (such as exact ROM/RAM sizes) may require access to NEC's original datasheets, which are not publicly available in full.
