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STV9424 Datasheet

  • STV9424

  • MULTISYNC ON-SCREEN DISPLAY FOR MONITOR

  • 15頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STV9422
STV9424
MULTISYNC ON-SCREEN DISPLAY FOR MONITOR
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CMOS SINGLE CHIP OSD FOR MONITOR
BUILT IN 1 KBYTE RAM HOLDING :
- PAGES鈥?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)
CHARACTER BLINKING
2-WIRES ASYNCHRONOUS SERIAL MCU
INTERFACE (I
2
C PROTOCOL)
8 x 8 BITS PWM DAC OUTPUTS
SINGLE POSITIVE 5V SUPPLY
SHRINK 24
(Plastic Package)
ORDER CODE :
STV9422
DESCRIPTION
The STV9422/24 is an ON SCREEN DISPLAY for
monitor. It is built as a slave peripheral connected
to a host MCU via a serial I
2
C 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
2
C interface allows MCU to make transparent in-
ternal access to prepare the next pages during the
display of the current page. Toggle from one page
to another by programming only one register.
8 x 8 bits PWM DAC are available to provide DC
voltage control to other peripherals.
The STV9422/24 provides the user an easy to use
and cost effective solution to display alphanumeric
or graphic information on monitor screen.
October 1995
DIP16
(Plastic Package)
ORDER CODE :
STV9424
1/15

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