Weltrend Semiconductor, Inc. WT6801 Monitor On-Screen Display Data Sheet REV. 1.0 June 27, 2000 The information in this document is subject to change without notice. Weltrend Semiconductor, Inc. All Rights Reserved. 2F, No. 24, Industry E. 9 th RD., Science-Based Industrial Park, Hsin-Chu, Taiwan TEL:886-3-5780241 FAX:886-3-5794278.5770419 Email:[email protected] WT6801 Data Sheet Rev. 1.0 GENERAL DESCRIPTION The WT6801 is designed to display color symbols or characters onto monitor. By storing display data in its RAM and control information in the registers via I2C interface, WT6801 can carry out screen refresh without any MCU supervision. FEATURES • Programmable horizontal resolutions up to 1530 dots per line • Horizontal frequency up to 120KHz • On-chip PLL up to 96MHz • Fully programmable character array of 15 rows by 30 columns • 12x18 dot matrix per character • 256 characters and graphic symbols ROM including 16 multi-color fonts • 8 colors per display character • 7 colors per display character background • 4 programmable windows • Double character height and width control • Programmable character height (18 to 71 lines) • Programmable row-to-row spacing • Programmable vertical and horizontal positioning for display screen center • Bordering, shadowing and blinking effect • Fade-in/Fade-out effect • Video timing capture for auto sizing • I2C interface with slave address $7AH • Package type : 16-pin and 20-pin plastic DIP/SOP PIN CONFIGURATION WT6801N160 WT6801S160 WT6801N200 WT6801S200 VSSA 1 16 VSS VSSA 1 20 VSS LF 2 15 ROUT LF 2 19 ROUT VCO 3 14 GOUT VCO 3 18 GOUT VDDA 4 13 BOUT VDDA 4 17 BOUT HFLB 5 12 FBKG HFLB 5 16 FBKG CLKIN 6 11 HFX CLKIN 6 15 HFX SDA 7 10 VFLB SDA 7 14 VFLB SCL 8 9 VDD SCL 8 13 VDD BIN 9 12 GIN 10 11 Weltrend Semiconductor, Inc. Page 2 RIN WT6801 Data Sheet Rev. 1.0 PIN DESCRIPTION Pin No. Pin Name N160 S160 N200 S200 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 VSSA LF VCO VDDA HFLB CLKIN SDA SCL BIN GIN RIN NC VDD VFLB HFX 12 16 FBKG 13 14 15 16 17 18 19 20 BOUT GOUT ROUT VSS I/O Description Analog ground. I/O Loop filter of PLL. I/O VCO control voltage input. Analog power supply I Horizontal sync input. I External clock input. I/O Serial data of I2C interface. I Serial clock of I2C interface. I Blue color input. I Green color input. I Red color input. No Connection. Digital power supply I Vertical sync input. O Output a sync signal with N times Hsync input frequency. Fast Blanking output. This pin controls the mixer of vedio amplifier O to cutoff the video signal while displaying character or window. O Blue color output O Green color output O Red color output Digital ground Weltrend Semiconductor, Inc. Page 3