Professional IC Distribution & Technical Solutions

The NEC D78F9116AC is a microcontroller from NEC Electronics (now Renesas Electronics). Below are the factual details about its manufacturer, specifications, descriptions, and features:

Manufacturer:

• NEC Electronics (now part of Renesas Electronics Corporation)

Specifications:

• Core: 78K0 Series 16-bit microcontroller
• CPU Architecture: 78K0 core (CISC architecture)
• Clock Speed: Up to 10 MHz
• Operating Voltage: 2.7V to 5.5V
• Program Memory (ROM): 16 KB (Mask ROM)
• RAM: 512 bytes
• Data Flash: None (Mask ROM variant)
• I/O Ports: Multiple general-purpose I/O pins
• Timers:
• 16-bit timer/counter
• Watchdog timer
• Real-time clock (RTC) capability
• Serial Interfaces:
• UART (Serial Interface)
• I²C (optional)
• ADC: 8-channel, 10-bit resolution
• Interrupts: Multiple internal/external interrupt sources
• Package: PLCC, QFP, or other surface-mount options
• Operating Temperature Range: -40°C to +85°C

Descriptions:

• The D78F9116AC is a 16-bit microcontroller designed for embedded control applications.
• It is part of NEC’s 78K0 family, optimized for cost-sensitive and power-efficient designs.
• Suitable for consumer electronics, industrial control, and automotive applications.
• Uses Mask ROM for program storage, making it ideal for high-volume production.

Features:

• Low-power operation with multiple power-saving modes.
• High noise immunity for industrial environments.
• On-chip oscillator for reduced external components.
• Compact design with integrated peripherals for reduced system cost.
• Reliable performance in harsh conditions.

This microcontroller is now part of Renesas’ legacy product lineup, with newer alternatives available in the 78K0R or RL78 series.

Would you like additional technical documentation or pinout details?