The UPD78P328CW is an 8-bit single-chip microcontroller manufactured by NEC (now Renesas Electronics). It belongs to the 78K/0 series of microcontrollers and is designed for various embedded control applications. This microcontroller integrates a wide range of peripherals and features to provide a versatile and cost-effective solution.

Applications

• Consumer electronics
• Home appliances
• Industrial control systems
• Motor control
• Security systems

Features

• 8-bit 78K/0 CPU core
• 8KB of on-chip flash memory
• 256 bytes of RAM
• 29 I/O pins
• 8-bit timer/counter
• Serial interface (UART)
• A/D converter (8-bit, 8 channels)
• Watchdog timer
• Low-voltage detection circuit

Benefits

• Cost-effective solution for embedded control applications
• Integrated flash memory for program storage
• Versatile I/O capabilities for interfacing with various peripherals
• Built-in timer/counter for timing and control applications
• Serial communication interface for data exchange
• A/D converter for analog signal acquisition
• Watchdog timer for preventing runaway code
• Low-voltage detection for reliable operation

Additional Details

The UPD78P328CW microcontroller operates at a clock frequency of up to 16 MHz. It supports a wide range of instructions and addressing modes. The on-chip flash memory allows for easy program updates and modifications. The 29 I/O pins can be configured as input or output ports, allowing the microcontroller to interface with a variety of external devices, such as sensors, actuators, and displays. The UART serial interface enables communication with other devices using serial protocols, such as RS-232 or RS-485. The 8-bit A/D converter allows the microcontroller to measure analog signals, such as temperature, pressure, or voltage. The watchdog timer resets the microcontroller if the program execution becomes stalled, preventing system failures. The low-voltage detection circuit monitors the supply voltage and resets the microcontroller if the voltage drops below a certain threshold. This microcontroller is commonly used in a variety of applications, including consumer electronics, home appliances, and industrial control systems. It is a reliable and cost-effective solution for embedded control tasks.