STV9425-STV9425B Datasheet, PDF (1/15 Pages) STMicroelectronics – MULTISYNC ON-SCREEN DISPLAY FOR MONITOR

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 120kHz)
PROGRAMMABLE VERTICAL HEIGHT OF
CHARACTER WITH A SLICE INTERPOLATOR
TO MEET MULTI-SYNCH REQUIREMENTS
. PROGRAMMABLE VERTICAL AND HORI-
ZONTAL POSITIONING
. _{FLEXIBLE SCREEN DESCRIPTION}
. _{CHARACTER BY CHARACTER COLOR SE-}
LECTION (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 alphanu-
meric or graphic information on monitor screen.
SHRINK24
(Plastic Package)
ORDER CODES : STV9425 - STV9425B
DESCRIPTION
TheSTV9425/25B/26is an ON SCREEN DISPLAY
for monitor. It is built as a slave peripheral con-
nected 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. Tog-
gle from one page to another by programming only
one register.
December 1997
DIP16
(Plastic Package)
ORDER CODE : STV9426
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