STV9426 Datasheet | STMicroelectronics

STV9425 - STV9425B STV9426 MULTISYNC ON-SCREEN DISPLAY FOR MONITOR - - . . . . CMOS SINGLE CHIP OSD FOR MONITOR BUILT IN 1 KBYTE RAM HOLDING : - PAGES’ DESCRIPTORS - CHARACTER CODES - USER DEFINABLE CHARACTERS 128 ALPHANUMERIC CHARACTERS OR GRAPHIC SYMBOLS IN INTERNAL ROM (12 x 18 DOT MATRIX) UP TO 26 USER DEFINABLE CHARACTERS INTERNAL HORIZONTAL PLL (15 TO 120k Hz) PROGRAMMABLE VERTICAL HEIGHT OF CHARACTER WITH A SLICE INTERPOLATOR TO MEET MULTI-SYNCH REQUIREMENTS PROGRAMMABLE VERTICAL AND HORIZONTAL POSITIONING FLEXIBLE SCREEN DESCRIPTION CHARACTER BY CHARACTER COLOR SELECTION (UP TO 8 DIFFERENT COLORS) PROGRAMMABLE BACKGROUND (COLOR, TRANSPARENT OR WITH SHADOWING) 50MHz MAXIMUM PIXEL CLOCK 2-WIRES ASYNCHRONOUS SERIAL MCU INTERFACE (I2C PROTOCOL) 8 x 8 BITS PWM DAC OUTPUTS (STV9425) 4 x 8 BITS PWM DAC OUTPUTS (STV9425B) SINGLE POSITIVE 5V SUPPLY 8 x 8 bits or 4 x 8 bits PWM DAC are available to provide DC voltage control to other peripherals. The STV9425/25B/26provides the user an easy to use and cost effective solution to display alphanumeric or graphic information on monitor screen. SHRINK24 (Plastic Package) ORDER CODES : STV9425 - STV9425B DESCRIPTION The STV9425/25B/26is an ON SCREEN DISPLAY for monitor. It is built as a slave peripheral connected to a host MCU via a serial I2C bus. It includes a display memory, controls all the display attributes and generates pixels from the data read in its on chip memory. The line PLL and a special slice interpolator allow to have a display aspect which does not depend on the line and frame frequencies. I 2C interface allows MCU to make transparent internal access to prepare the next pages during the display of the current page. Toggle from one page to another by programming only one register. December 1997 DIP16 (Plastic Package) ORDER CODE : STV9426 1/15 STV9425 - STV9425B - STV9426 PIN CONNECTIONS SDIP24 (STV9425) PWM0 PWM1 FBLK VSYNC HSYNC VDD PXCK CKOUT XTAL OUT XTAL IN PWM2 PWM3 1 2 3 4 5 6 7...