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The UPD6120C101 is a remote control transmitter IC manufactured by NEC. Below are its key specifications, descriptions, and features:

Manufacturer:

• NEC (now part of Renesas Electronics Corporation)

Specifications:

• Type: Remote Control Transmitter IC
• Package: SOP (Small Outline Package)
• Supply Voltage: 2.0V to 5.5V
• Oscillation Frequency: 455 kHz (typical for IR remote systems)
• Output: CMOS push-pull output for IR LED drive
• Key Matrix: Supports up to 32 keys (8x4 matrix)
• Modulation: Carrier frequency generation (typically 38 kHz)
• Standby Current: Low power consumption in standby mode

Descriptions:

• Designed for infrared remote control applications.
• Includes an internal oscillator circuit for generating carrier signals.
• Features a key scanning function to detect button presses.
• Encodes key inputs into NEC-standard remote control signals.

Features:

• Low Power Consumption: Suitable for battery-operated devices.
• Wide Voltage Range: Operates from 2.0V to 5.5V.
• Built-in Oscillator: Reduces external component count.
• CMOS Output: Efficient IR LED driving capability.
• NEC Remote Protocol: Compatible with standard NEC IR remote systems.

This IC is commonly used in consumer electronics such as TVs, air conditioners, and other infrared remote-controlled devices.

Would you like additional details on pin configuration or application notes?