The uPD7801G-110 is a microcontroller manufactured by NEC (now Renesas Electronics). It belongs to the 78K/0 series of 8-bit microcontrollers, designed for embedded control applications. It is used in a wide range of consumer and industrial devices due to its versatility and integrated peripherals.

Applications

• Consumer Electronics: Used in remote controls, toys, and home appliances.
• Industrial Control: Found in motor control systems, sensor interfaces, and process controllers.
• Automotive Applications: Employed in dashboard displays, lighting controls, and simple engine management systems.
• Instrumentation: Utilized in measuring instruments, data loggers, and control panels.
• Security Systems: Integrated into alarm systems, access control devices, and surveillance equipment.

Features

• 8-bit CPU Core: Based on the 78K/0 architecture, providing efficient processing for control tasks.
• On-Chip ROM: Includes a programmable ROM for storing the application code.
• On-Chip RAM: Provides internal RAM for data storage and processing.
• I/O Ports: Features multiple general-purpose input/output (GPIO) ports for interfacing with external devices.
• Timers/Counters: Includes timers and counters for timing and counting applications.
• Serial Communication Interface: Supports serial communication protocols such as UART for communication with other devices.
• Interrupt Controller: Provides an interrupt controller for handling external and internal events.
• Low Power Consumption: Designed for low power consumption, making it suitable for battery-powered applications.

Benefits

• Cost-Effective: Provides a cost-effective solution for embedded control applications.
• Versatile: Suitable for a wide range of applications due to its integrated peripherals and features.
• Easy to Use: Relatively easy to program and interface with external devices.
• Reliable: Proven reliability in various industrial and consumer applications.
• Compact: Available in compact packages, making it suitable for space-constrained applications.

The uPD7801G-110 operates within a specific voltage range (typically 3V to 5.5V) and has a defined temperature range. The exact specifications, such as memory size (ROM and RAM) and the number of I/O pins, can vary slightly depending on the specific revision or variant of the chip. Datasheets from Renesas Electronics provide precise technical details.