DESCRIPTION

The STV9427/28/29 is 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. I2C 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.

■ CMOS SINGLE CHIP OSD FOR MONITOR

■ BUILT IN 1 KBYTE RAM HOLDING :

- CHARACTER CODES

- USER DEFINABLE CHARACTERS

■ 207 ALPHANUMERIC CHARACTERS OR GRAPHIC SYMBOLS IN INTERNAL ROM

■ 12 x 18 CHARACTER DOT MATRIX

■ PROGRAMMABLE ACCENTUATED CHARACTER SET

■ CHARACTER BLINKING

■ RAM DEFINABLE COLOR LOOK UP TABLE

■ UP TO 16 USER DEFINABLE CHARACTERS

■ UP TO 80MHz PIXEL CLOCK

■ INTERNAL HORIZONTAL PLL (15 TO 120kHz)

■ PROGRAMMABLE VERTICAL HEIGHT OF CHARACTER WITH A SLICE INTERPOLATOR TO MEET MULTI-SYNCH REQUIREMENTS

■ PROGRAMMABLE VERTICAL AND HORIZONTAL POSITIONING

■ FLEXIBLE SCREEN DESCRIPTION

■ 22 CONTROL CODES FOR POWERFULL SERIAL ATTRIBUTES

■ 2-WIRES ASYNCHRONOUS SERIAL MCU INTERFACE (I2C PROTOCOL)

■ 8 x 8 BITS PWM DAC OUTPUTS

■ SINGLE POSITIVE 5V SUPPLY