ROHM BU2993FV

00W022A
On Screen Display IC
BU2993FV
Dimension
The BU2993FV is a character generator IC designed
for TV monitors and any other displays. It supports
several features such as 512 characters display,
12-line × 28-character display, color and size of
characters selectable, choice of background colors,
3-D displays, and 3-wire fixed 16 bit serial interface.
(Units:mm)
6.4 ± 0.3
1.15 ± 0.1
4.4 ± 0.2
0.1
6.5 ± 0.2
Features
20
11
1
10
0.3Min.
Description
0.15 ± 0.1
0.65 0.22 ± 0.1
0.1
SSOP-B20
1) 12-line × 28-character display
2) 512 character types
3) 4bit character color code
4) Character size can be selected from 4 sizes.
5) 3-D display possible for each character
6) Negative/positive display switch
7) Characters are displayed in a 12 ×18 dot matrix.
8) 3-wire fixed, 16 bit serial interface
9) Compatible with custom font
Applications
DVC, Camcoders, DSC, Video-CD, DVD, Car navigation
Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Power supply voltage
VDD
Terminal voltage
VIN
Storage temperature range
Tstg
Power dissipation
PD
Limits
–0.3∼+7.0
–0.3∼VDD+0.3
–50 ~+125
400 ∗
Unit
V
V
˚C
mW
∗Derating: 4.0mW/˚C for operation above Ta=25˚C.
February, 2000
Recommended Operating Conditions (Ta=25˚C)
Parameter
Power supply voltage
Operating frequency
Symbol
Min.
Typ.
VDD
FOSC
2.4
6.0
—
Max.
3.6
Unit
—
17.8
Symbol
Min.
—
Typ.
3.9
Max.
6.0
Unit
mA
VCC=2.7V, f CLK=8MHz
—
5.0
7.0
mA
VCC=3.3V, f CLK=8MHz
V
MHZ
Electrical Characteristics
Parameter
Current consumption
IDD
Low input voltage
High input voltage
VIL
0
—
0.2VDD
V
VIH
0.8VDD
—
VDD
V
Low input current
IIL
High input current
IIH
Low output voltage
VOL
High output voltage
VOH
Conditions
—
—
10
µA
25
50
100
µA
—
—
10
µA
—
—
0.1VDD
V
—
—
0.1VDD
V
0.9VDD
—
—
V
IOL=4.0mA
IOL=0.5mA, OSCOUT
IOL=4.0mA
0.9VDD
—
—
V
IOL=0.5mA, OSCOUT
VIL=0V
VIH=3.0V
Application circuit
SCLK
CSB
SDATA
SDDIR
HSYNC
VSYNC
SERIAL
INTERFACE
H/VSYNC
INTERFACE
ROM INTERFACE
DISPLAY CONTROL
Display background
control
Line background
control
Character background
control
Spright character
control
OSCIN
OSCOUT OSC
DOTCLK
CONT
OUTPUT CONTROL
VRAM INTERFACE
CHARACTER ROM
MULTIPLEXER
VRAM
TEST
BU2993FV
VC0
VC1
VC2
VC3
BLKA
BLKB
BLKC
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0