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The UPD789104AMC-663-5A4-E1 is a microcontroller manufactured by NEC (now part of Renesas Electronics). Below are its key specifications, descriptions, and features:

Specifications:

• Manufacturer: NEC (Renesas Electronics)
• Series: µPD789104
• Core: 8-bit microcontroller
• Architecture: Based on NEC’s 78K0/Kx2 core
• Operating Voltage: Typically 2.7V to 5.5V
• Clock Speed: Up to 10 MHz
• Flash Memory: 16 KB
• RAM: 512 bytes
• EEPROM: Not integrated (external may be required)
• I/O Ports: Multiple configurable digital I/O pins
• Timers: Built-in timers (e.g., 8-bit/16-bit timers, watchdog timer)
• ADC: Integrated 8-channel, 10-bit ADC
• Communication Interfaces:
• UART (Serial Interface)
• I²C
• SPI (if supported by variant)
• Package Type: Likely LQFP or similar surface-mount package
• Operating Temperature Range: Typically -40°C to +85°C

Descriptions & Features:

• Designed for low-power embedded applications.
• Suitable for consumer electronics, industrial control, and automotive systems.
• Includes power-saving modes (HALT, STOP) for energy efficiency.
• Supports on-chip debugging (varies by development tools).
• High noise immunity for reliable performance in harsh environments.

For exact pinout, electrical characteristics, and application notes, refer to NEC/Renesas’ official datasheet for the µPD789104 series.

*(Note: Verify exact details with manufacturer documentation, as variants may differ.)*