STMicroelectronics STG1732/STG1764 32/64-Bit Multimedia Palette-DACs Datasheet

About this manual

The STG1732 and STG1764 are 32-bit and 64-bit pixel port Palette-DACs compatible with the architecture of the STG2000 Multimedia Accelerator. These devices feature integrated clock synthesizers, a game port, and hardware cursor capabilities to support DRAM-based graphics memory through a pixel FIFO buffer.

The chips support multiple visual modes including 4-bit indexed planar, 15-bit direct color, 15-bit true color, 30-bit direct color, and 30-bit true color. Key features include a deep pixel input FIFO, 8-channel analog/digital Game Port interface, and three programmable Phase Lock Loops for memory, video, and audio.

What's inside

• Device Pinouts
• Pin Descriptions
• System Interface
• Pixel Port
• Clock Synthesizers
• Game Port
• DACs
• Electrical Specifications
• Package Dimensions
• Ordering Information

Specifications

Frequently asked questions

How many programmable Phase Lock Loops are included?

The device includes three programmable Phase Lock Loops for memory, video, and audio.

What is the maximum resistance for the potentiometers used in the Game Port?

The 8-bit Game Port interfaces with potentiometers up to 150kΩ and/or SPST switches.