BT481A Datasheet - Brooktree

BT481A 110 Mhz / 256 Word Color Palette / 24 Bit True Color Power Down RAMDAC

Bt481A 110 MHz 256-Word Color Palette 15-, 16-, and 24-Bit True Color Power-Down RAMDAC Designed speciﬁcally for high-performance color graphics, the Bt481A RAMDAC supports three true-color modes: 15-bit (5:5:5, 32 K colors) TARGA format, 16-bit (5:6:5, 65 K colors) XGA format, and 24-bit BGR (8:8:8, RGB/ BGR, 16.8 M colors) true-color format. It also supports 8-bit pseudo-color format (256 colors). The Bt481A has a 256 x 18 (24) lookup table RAM, 15 x 8 (24) overlay registers, and triple 8-bit .

BT481A Features

* 110 MHz Operation

* Supports 8:8:8:8, 24-bit true color and VGA overlay

* Supports 8:8:8 24-bit RGB/BGR selectable true-color format

* Supports 5:6:5 XGA true-color format

* Supports 5:5:5 TARGA true-color format

* Replaces Bt471/475/476/477/478 whic

BT481A_Brooktree.pdf