Sanyo LC7475 Specifications
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
CMOS IC
On-Screen Display Controller
for PAL-Format Video
Ordering number:ENN3885A
LC7475
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Overview
The LC7475 is a video display controller for superimposing text and low-level graphics onto a PAL-format television receiver. The LC7475 has 128 characters in internal
ROM. Up to 288 characters can be displayed on a 12-line
by 24-character display under microprocessor control.
The LC7475 features four vertical and four horizontal character dimensions and 64 vertical and 64 horizontal screen
start positions. It also features a flashing enable bit for each
character position.
The LC7475 operates from a 5 V supply and is a v ailable in
22-pin shrink DIPs.
Features
• Complete text and graphics video overlay circuitry.
• 128 characters in internal ROM.
• 288 character display capability.
• 12 × 18 dot-matrix character resolution.
• Approximately 0.5 or 1 s period character flashing option.
• Selectable flashing duty cycles of 25, 50 or 75%.
• Internal or external synchronization.
• Serial data control.
• 5 V supply.
• 22-pin shrink DIP.
Package Dimensions
unit:mm
3059-DIP22S
[LC7475]
22 12
6.4
7.62
111
0.95 0.48
21.2
1.78
3.25
0.51min
1.7
3.9max
3.3
SANYO : DIP22S
Pin Assignment
0.25
Top view
71901TN (KT)/9021JN No.3885–1/12
Block Diagram
LC7475
No.3885–2/12
Pin Description
rebmuNemaNnoitpircseD
1V
2NIXtupnirotallicsolatsyrC
3TUOXtuptuorotallicsolatsyrC
4TSETtuptuotseT
5TSRtupniteseR
6KLCStupnikcolcatadlaireS
7NIStupniatadlaireS
8SCtupnitcelespihC
9KBVLtupnitnemtsujdalevel-gniknalB
01AHCVLtupnitnemtsujdalevel-retcaragC
11V
21TUOVCtuptuooedivetisopmoC
31V
41NIVCtupnioedivetisopmoC
51V
61INYStupnirotarapescnyS
71CPEStupnitnemtsujdarotarapescnyS
81TUOPEStuptuorotarapescnyS
91NIPEStupnicnyslacitreV
02TUOCSOtuptuorotallicsokcolctoD
12NICSOtupnirotallicsokcolctoD
22V
LC7475
1SS
2DD
2SS
1DD
1DD
dnuorgtiucriclatigiD
ylppustiucricgolanA
dnuorgtiucricgolanA
ylppuscigoL
ylppuscigoL
Specifications
Absolute Maximum Ratings
retemaraPlobmySsnoitidnoCsgnitaRtinU
egnaregatlovylppuSV
egnaregatlovtupnIV
egnaregatlovtuptuOV
noitapissidrewopelbawollAdPxam 52=aT(003 ˚ )CWm
erutarepmetgnitarepOrpoT 07+ot03–
erutarepmetegarotSgtsT 521+ot04–
Recommended Operating Conditions at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppuscigoLV
egatlovylppusgolanAV
egnaregatlovylppuscigoLV
egnaregatlovylppusgolanAV
DD
I
O
1DD
2DD
1DD
2DD
V
V
V
Vot3.0–
0.7+
SS
SS
SS
SS
Vot3.0–
DD
Vot3.0–
DD
V72.1ot5.4
V
3.0+
V
3.0+
V
˚C
˚C
5V
5V
5.5ot5.4V
V
1DD
No.3885–3/12
LC7475
Electrical Characteristics at T a = –30 to +70˚C, V
retemaraPlobmySsnoitidnoC
tnerrucylppuSI
egatlovtuptnilevel-wolTUOPESV
egatlovtupnilevel-wolKLCSdnaTSR,NIS,SCV
egatlovtupnilevel-hgihTUOPESV
tupnilevel-hgihKLCSdnaTSR,NIS,SC
egatlov
egatlovtupnioedivetisopmocINYSV
egatlovtupnioedivetisopmocNIVCV
level-hgihNIPESdnaKLCS,TSR,NIS,SC
tnerructupni
tnerructupnilevel-hgihNICSOI
ycneuqerftupnirotarenegcnySf
ycneuqerftupnikcolctoDf
tnerrucegakaelTUOVCI
Timing Characteristics at Ta = –30 to +75˚C, V
retemaraPlobmySsnoitidnoC
htdiwesluptupniKLCSt
htdiwesluptupnilevel-hgihSCt
emitputestupnielbaneatadSCt
emitputestupniatadNISt
emitdlohtupnielbaneatadSCt
emitdlohtupniatadNISt
emitetirwdrowtib-61t
emitetirwatadMARt
DD
V
1LI
2LI
V
1HI
V
2HI
1NI
2NI
I
1HI
2HI
1CSO
2CSO
L
DD1
)KLCS(W
)SC(W
)SC(US
)NIS(US
)SC(H
)NIS(H
drow
TW
= 5V, V
DD1
1DD
1DD
= 5±0.5V
= 5V, unless otherwise noted
DD2
sgnitaR
nimpytxam
I,V5.4=
Am1=0.1V
LO
I,V5.4=
Am1=5.3V
HO
VSS– 3.0V2.0
V8.0
1DD
0.25.2V
2V
–1Aµ
37.71zHM
5701zHM
sgnitaR
nimpytxam
002sn
1sµ
002sn
002sn
2sµ
002sn
01sµ
1sµ
V
1DD
02Am
1DD
3.0+
1Aµ
01Aµ
tinU
V
V
P-P
P-P
tinU
No.3885–4/12
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