Sanyo LC7470 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
Character and Pattern Display Control IC
Ordering number:ENN3725
LC7470
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Overview
Character and pattern display control IC for TV screen. A
character dot configuration is 12 × 18. The IC has 64 inter-
nal character ROMs and displays up to 288 characters (24
characters × 12 lines) on a TV screen. It can be controlled
by a microcontroller.
Function and Applications
• Screen Display Mode: 24 characters × 12 lines
• Number of display characters: 288 characters (max.)
• Display control ROM (line ROM):
64 lines (line control: 24-character line)
• Display RAM:
176 characters (used for specifying variable characters)
• Character configuration:
12 (horizontal) × 18 (vertical) dots
• Number of character types: 64 types
• Character size:
Horizontal direction: 4, Vertical direction: 4
• Display start position:
Horizontal direction: 64, Vertical direction: 64
• Blinking mode: Character blinking
• Display ON/OFF mode:
ON/OFF cycle; 1.0 second and 0.5 second. Duty cycle;
25%, 50% and 75%
• Blanking mode: Entire font area (12 × 18 dots)
• Background colors: 4 (at internal SYNC. operation mode)
• External control input: Serial data input
• Synchronous signal: Selectable: Internal and External
• Internal SYNC. separation circuit available.
• Video output: NTSC-format composite output
• Superimpose function:
Superimposes character output on composite video
output
Package Dimensions
unit:mm
3059-DIP22S
[LC7470]
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
0.25
71901TN (KT)/8290JN, TA, KI (AC) No.3725–1/13
LC7470
Specifications
Absolute Maximum Ratings
retemaraPlobmySnoitidnoCsgnitaRtinU
egatlovylppusmumixaMV
egatlovtupnimumixaMV
egatlovtuptuomumixaMV
noitapissidrewopelbawollAxamdP 003Wm
erutarepmetgnitarepOrpoT – 07+ot03
erutarepmetegarotSgtsT – 521+ot04
Reommended Operating Conditions at Ta = –30 to +70˚C
retemaraPlobmySnoitidnoC
egatlovylppuS
egatlovlevel-hgihtupnIV
egatlovlevel-woltupnIV
egatlovtupnioedivetisopmoC
ycneuqerfnoitallicsO
V
V
V
V
F
F
F
NI
DD
2HI
2LI
1NI
2NI
TUO
1DD
2DD
1CSO
2CSO
3CSO
V
V,
1DD
2DD
sniptupnillAV
Ta = 25˚C
VniP
1DD
VniP
2DD
VC
NI
INYSniPp-pV2p-pV5.2
nipnoitallicsoCL7zHM
VSS– Vot3.0
– Vot3.0
SS
VSS– Vot3.0
sgnitaR
nimpytxam
5.40.55.5V
5.40.5
KLCS,TSR,NIS,SCsniP
KLCS,TSR,NIS,SCsniP
f4ta(nipnoitallicsolatX
)13.41zHM
CSO
f2ta(nipnoitallicsolatX
)61.7zHM
CSO
8.0V
VSS– 3.0
1DD
V
p-pV2
0.7+V
SS
3.0+V
1DD
3.0+V
1DD
72.1V
1DD
3.0+
1DD
2.0V
1DD
˚C
˚C
tinU
V
V
V
V
Electrical Characteristics at Ta = –30 C to +70˚C, and VDD = 5V, unless other noted
retemaraPlobmySnoitidnoC
tnerrucegakaelffo-tuptuOI
egatlovlevel-hgihtuptuOV
egatlovlevel-woltuptuOV
tnerructupnI
niardtnerrucgnitarepOI
I
I
VC
kael
1HI
1LI
HI
LI
DD
TUO
PES
V
,TUO
PES
V
,TUO
V,NICSO
NIV=SS
I,V5.4=
DD
I,V5.4=
DD
Am0.1=5.3V
HO
Am0.1=0.1V
LO
V,NIPES,KLCS,TSR,NIS,SC
NIV=DD
Timing Characteristics at Ta = –30 to +70˚C, VDD = 5±0.5V
retemaraPlobmySnoitidnoC
htdiwesluptupnimuminiM
emitputesataD
emitdlohataD
doirepetirwdrow-1
t
t
t
t
t
t
t
drow
t
tw
KLCS002sn
)KLCS(w
)SC(w
SC002sn
)SC(us
NIS002sn
)NIS(us
SC2sµ
)SC(h
NIS002sn
)NIS(h
)doireplevel-H=SC(SC1sµ
doirepetirwatadtib-6101sµ
doirepetirwatadMAR1sµ
Pin Assignment
sgnitaR
nimpytxam
01Aµ
1Aµ
–1Aµ
51Am
sgnitaR
nimpytxam
tinU
tinU
Top view
No.3725–2/13
Serial Data Input Timings
LC7470
Pin Description
.oNniPlobmysniPemaNniPsnoitcnuF
1V
2IatX
3IatX
4TSETniptseTniptuptuotseT
5TSRniptupniteseRniptupnitesermetsyS
6KLCSniptupnikcolCtupniatadlairesrofniptupnikcolC
7NISniptupniataD detroppussitupniatadtib-61laireS.niptupniatadlaireS
8SCniptupnielbanE
9KBVL
01AHCVL
11V
21VC
31V
41VC
51V
61INYS
71CPES
81PES
91PES
02CSO
12CSO
22V
1SS
NI
TUO
2DD
TUO
2SS
NI
1DD
TUO
NI
TUO
NI
1DD
nipdnuorG)gnidnuorglatigid(nipDNG
nipnoitallicsolatX
tnemtsujda
tnemtsujda
nipdnuorG)gnidnuorggolana(nipDNG
niptuptuo
niptupni
levelknalbrofniptupnI
levelretcarahcrofniptupnI
nipylppusrewoProfnipylppusrewoP )ylppusrewopgolana(slevellangisoedivetisopmocgnitsujda
niptuptuolangisoediVlangisoedivetisopmocrofniptuptuO
niptupnilangisoediVlangisoedivetisopmocrofniptupnI
nipegatlovylppuSnipegatlovylppuS)V5+(
niptnemtsujdatiucric
)V5+(nipegatlovylppuS)V5+(egatlovylppuS
noitarapeslangissuonorhcnyS
noitarapeslangissuonorhcnyS
langissuonorhcnysetisopmoC
langissuonorhcnyslacitreV
niptupnitiucric
nipnoitallicsoCL skcolctodtuptuoretcarahcetarenegotroticapacdnaliocagnitcennocrofsnipnoitallicsO
slangissuonorhcnys
delbanesitupni
eveLslevelknalbgnitsujdarofniptupnil
eveLslevelretcarahcgnitsujdarofniptupnil
)nip
lanretnietarenegotroticapacdnarotallicsolatsyrcagnitcennocrofsnipnoitallicsO
atadlaireseht,)wolevitca(evitcasemocebnipsihtfI.tupniatadlairesrofniptupnielbanE
tiucricnoitarapeslangissuonorhcnysrofniptupnI
sihtotdetcennocsiroticapacA(tiucricnoitarapeslangissuonorhcnysrofniptnemtsujdA
tiucricnoitarapeslangissuonorhcnysrofniptuptuolangissuonorhcnysetisopmoC
ybdetarenegsinipsihtotlangistupniehT.niptupnilangissuonorhcnyslacitreV
nipNIPESehtdnanipTUOPES
ehtneewtebtiucriclargetninaddA.nipTUOPESehtmorflangistuptuoehtgnitargetni
No.3725–3/13
System Block Diagram
LC7470
No.3725–4/13
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