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STMicroelectronics Electronic Components Datasheet

STV9424 Datasheet

(STV9422 / STV9424) MULTISYNC ON-SCREEN DISPLAY

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STV9422
STV9424
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)
. CHARACTER BLINKING
. 2-WIRES ASYNCHRONOUS SERIAL MCU
INTERFACE (I2C 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 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 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


STMicroelectronics Electronic Components Datasheet

STV9424 Datasheet

(STV9422 / STV9424) MULTISYNC ON-SCREEN DISPLAY

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STV9424 pdf
STV9422 - STV9424
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PIN CONNECTIONS
SDIP24 (STV9422)
PWM0
PWM1
FBLK
VSYNC
HSYNC
VDD
PXCK
CKOUT
XTAL OUT
XTAL IN
PWM2
PWM3
1
2
3
4
5
6
7
8
9
10
11
12
24 PWM7
23 PWM6
22 TEST
21 B
20 G
19 R
18 GND
17 RESET
16 SDA
15 SCL
14 PWM5
13 PWM4
DIP16 (STV9424)
FBLK
V-SYNC
H-SYNC
VDD
PXCK
CKOUT
XTAL OUT
XTAL IN
1
2
3
4
5
6
7
8
16 TEST
15 B
14 G
13 R
12 GND
11 RESET
10 SDA
9 SCL
PIN DESCRIPTION
Symbol
PWM0
PWM1
FBLK
V-SYNC
H-SYNC
VDD
PXCK
CKOUT
XTAL OUT
XTAL IN
PWM2
PWM3
PWM4
PWM5
SCL
SDA
RESET
GND
R
G
B
TEST
PWM6
PWM7
Pin Number
SDIP24
DIP16
1-
2-
31
42
53
64
75
86
97
10 8
11 -
12 -
13 -
14 -
15 9
16 10
17 11
18 12
19 13
20 14
21 15
22 16
23 -
24 -
I/O Description
O DAC0 Output
O DAC1 Output
O Fast Blanking Output
I Vertical Sync Input
I Horizontal Sync Input
S +5V Supply
O Pixel Frequency Output
O Clock Output
O Crystal Output
I Crystal or Clock Input
O DAC2 Output
O DAC3 Output
O DAC4 Output
O DAC5 Output
I Serial Clock
I/O Serial Input/output Data
I Reset Input (Active Low)
S Ground
O Red Output
O Green Output
O Blue Output
I Reserved (grounded in Normal Operation)
O DAC6 Output
O DAC7 Output
2/15


Part Number STV9424
Description (STV9422 / STV9424) MULTISYNC ON-SCREEN DISPLAY
Maker STMicroelectronics
Total Page 15 Pages
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