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The UPD6464CS-504 is a video display processor (VDP) manufactured by NEC. Below are its key specifications, descriptions, and features:

Manufacturer:

• NEC (Nippon Electric Company)

Specifications:

• Function: Video Display Processor (VDP)
• Package: SOP (Small Outline Package)
• Pin Count: 64 pins
• Operating Voltage: 5V (typical)
• Technology: CMOS
• Clock Frequency: Up to 5.04 MHz (indicated by the "-504" suffix)
• Applications: Video processing, character generation, and display control in consumer electronics (e.g., TVs, monitors, gaming systems).

Descriptions:

• The UPD6464CS-504 is designed for video signal processing, including character generation, sprite handling, and screen rendering.
• It interfaces with microcontrollers or CPUs to manage on-screen display (OSD) functions.
• Commonly used in CRT-based systems for text and graphics overlay.

Features:

• On-Chip Character ROM: Stores predefined fonts and symbols.
• Programmable Display Modes: Supports multiple text and graphic resolutions.
• Sprite Control: Handles moving objects on-screen.
• Low Power Consumption: CMOS technology ensures efficient operation.
• NTSC/PAL Compatibility: Works with standard TV video signals.

This chip was widely used in 1980s and 1990s consumer electronics, particularly in gaming consoles and television systems.

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