1st non IBM EGA chipset.
Chips&Technologies P82C434+P82C431 (CS8240)Written by Vlask
Downsized IBM EGA chipset from 19 chips to 4. 82C431 - Graphics Controller, 82C432 - Sequencer, 82C433 - Attributes Controller, 82C434 - CRT Controller. Chips 82C432A and 82C434A are upgraded revisions, but fully compactible. Whole chipset is named CS8240.