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PDF LC74772V Data sheet ( Hoja de datos )
| Número de pieza | LC74772V | |
| Descripción | On-Screen Display LSI | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : EN5159B
LC74772V
CMOS LSI
On-Screen Display LSI
for Camcorder
http://onsemi.com
Overview
The LC74772V is a CMOS LSI that implements on-screen display for camcorders. It displays characters and
patterns in a camcorder viewfinder under microprocessor control. The LC74772V displays a 12 18 dot font with
256 characters.
Functions
Screen format: 12 lines 24 characters (up to 288 characters)
Number of characters displayed: Up to 288 characters
Character format: 12 (horizontal) 18 (vertical) dots
Number of characters in font: 256 characters
Character sizes: Normal and double, specified in line units
Display start position
— Horizontal: 64 positions
— Vertical: 64 positions
Character reverse video function: Individual characters can be displayed in reverse video.
Types of blinking: Two types with periods of 1.0 and 0.5 seconds, specifiable on a per character basis.
(Blinking has a 60% display on duty.)
(Four divisors: 1/25, 1/30, 1/50, 1/60)
Outputs: R, G, B plus 2 output systems
Or: 4 output systems (character data and blanking data: 4 outputs each)
External control input: 8-bit serial data input format.
Specifications
Absolute Maximum Ratings
Parameter
Supply voltage
Input voltage
Output voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD
VIN
VOUT
Pd max
Topr
Tstg
Conditions
VDD
All input pins
CKOUT, CHA4, BLK4, CHA3, BLK3, B, G, R, BLANK
Ta = 25°C
Ratings
VSS – 0.3 to VSS + 7.0
VSS – 0.3 to VDD + 0.3
VSS – 0.3 to VDD + 0.3
300
–30 to +70
–40 to +125
unit
V
V
V
mW
C
C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
Package Dimensions
unit : mm
SSOP24(275mil)
7.8
24 13
1
0.65
(0.33)
12
0.22
0.15
Semiconductor Components Industries, LLC, 2013
July, 2013
23099HA(OT)/O3096HA(OT)/D3095HA (OT) No.5159-1/17
1 page  
Block Diagram
LC74772V
No. 5159-5/17
5 Page 
LC74772V
COMMAND 8 (Output control: background color setting: RGB output mode)
First byte
DA0 to DA7
7
6
5
4
3
2
1
0
Register name
—
—
—
—
BKCR
BKCG
BKCB
State
1
0
0
0
0
Register content
Function
Command 8 identification code
—
0 BKCR BKCG BKCB
Background color
1 0 0 0 Black
0 0 1 Blue
0 0 1 0 Green
0 1 1 Cyan
1 1 0 0 Red
1 0 1 Magenta
0 1 1 0 Yellow
1 1 1 1 White
Note
Background color setting in RGB output
mode
This command is invalid in 4-system
output mode.
• Invalid when pin 20 (OUTMOD) is high.
• Valid when pin 20 (OUTMOD) is low.
Second byte
DA0 to DA7
7
Register name
BKO4
F1
State
0
1
0
6
BKO4
F0
1
Register content
Function
BKO4F1 BKO4F0
Operation function
0 0 No background or border
0 1 Font size (black characters)
1 0 Border
1 1 Areas other than the font (all filled)
0
5
BKO3
F1
BKO3F1 BKO3F0
Operation function
1 0 0 No background or border
0 1 Font size (black characters)
4
BKO3 0 1 0 Border
F0 1 1 Areas other than the font (all filled)
1
0
3
BKO2
F1
BKO2F1 BKO2F0
Operation function
1 0 0 No background or border
0 1 Font size (black characters)
2
BKO2 0 1 0 Border
F0 1 1 Areas other than the font (all filled)
1
0
1
BKO1
F1
BKO1F1 BKO1F0
Operation function
1 0 0 No background or border
0 1 Font size
0
BKO1 0 1 0 Border
F0 1 1 Areas other than the font (all filled)
1
Note: This register is set to 0 on a reset (either by the RST pin or by a command reset).
Note
The system 4 output border setting
The system 3 output border setting
The system 2 output border setting
This command is invalid in RGB output
mode.
• Invalid when pin 20 (OUTMOD) is low.
• Valid when pin 20 (OUTMOD) is high.
The system 1 or RGB output border
setting
No. 5159-11/17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet LC74772V.PDF ] | |
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