Sanyo LC74721M 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 Video Display Controllers
for NTSC or PAL-M
Ordering number:ENN4359A
LC74721, LC74721M
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, T aito-ku, TOKYO, 110-8534 JAPAN
Overview
The LC74721 and LC74721M are CMOS, video display
controllers for superimposing text and low-level graphics
onto an NTSC or PAL-M compatible television receiver.
Up to 240, 8 × 8-pixel characters can be displayed under
microprocessor control on a 24-character by 10-line display.
The LC74721 and LC74721M feature selectable pixel width
and height, and 64 vertical and 64 horizontal display start
positions. It also features a flashing enable bit for each character position.
The LC74721 and LC74721M operate from a 5V supply.
The LC74721 is available in 24-pin DIPs, and the
LC74721M, in 24-pin MFPs.
Features
• Complete text and graphics vide overlay circuitry.
• 64-character internal character generator ROM.
• 8 × 8-pixel characters.
• Three pixel widths and three pixel heights.
• Selectable background color.
• Built-in synchronization check and separation circuitry.
• Approximately 0.5 or 1 s period character flashing option.
• NTSC or PAL-M format compatibility.
• 8-bit serial input format.
• 5V supply.
• 24-pin plastic DIP (300mil) and 24-pin plastic MFP
(375mil).
Package Dimensions
unit:mm
3067A-DIP24S
[LC74721]
21.0
24
1
0.9
(0.71)
1.78
0.48
0.95
unit:mm
3045B-MFP24
[LC74721M]
24
1
15.3
0.35
1.27
13
6.4
7.62
0.25
12
(3.25)
3.9max
3.3
0.51min
SANYO : DIP24S
13
7.9
12
2.15
0.1
0.67
SANYO : MFP24
0.15
2.5max
9.0
0.75
10.5
80101TN (KT)/D2293 JN B8-0377, A8-9893 No.4359–1/12
Block Diagram
LC74721, 74721M
No.4359–2/12
Pin Functions
rebmuNemaNnoitpircseD
1V
2NIX
3TUOX
41LRTC
5TUONYSC
6NICSO tuptuoretcarahcnoitarenegkcolclexiproftiucricCL.tupnirotallicsoCL
7TUOCSO tuptuoretcarahcnoitarenegkcolclexiproftiucricCL.tuptuorotallicsoCL
8CNYS
9SC ecnatsiserpu-lluphtiw,WOLnehwelbanetupniatadlaireS
01KLCSecnatsiserpu-lluphtiw,tupniatadlairesroftupnikcolC
11NISecnatsiserpu-lluphtiw,tupniatadlaireS
21V
31TUOVCtuptuolangisegamioedivetisopmoC
41CNnoitcennocoN
51NIVCtupnilangisegamioedivetisopmoC
61V
71NICNYS
81CPES desutonfinepoevaeL.noitcennocroticapacrotaludomtiucricnoitarapesnoitazinorhcnyS
91TUOPES
02NIPESVoteiT.tupnilangisnoitazinorhcnyslacitreV
122LRTC CSTNrofWOL.tupnitcelesdohtemnoitareneglangiscnysM-LAP/CSTN
223LRTCWOLnehwlangistupniCNYSV.lortnoctupniNIPES
32TSRecnatsiserpu-lluphtiw,tupnitesermetsyS
42V
LC74721, 74721M
1SS
2DD
1DD
1DD
dnuorG
f2(tupnikcolclanretxerosnoitcennocroticapacrotallicsolatsyrclangiscnyslanretnI
f4ro
CS
.edom
dnammocteserlanretniroftuptuooN.tuptuo
dnammocteserlanretniroftuptuo
)metsysgolanarof(noitaludomlevellangisegamioedivetisopmocrofylppusrewoP
metsyslatigidrofylppusrewopV5
langisnoitazinorhcnysetisopmocrolatnozirohlanretxenatupniotNICNYS
.desutonsinoitarapes
1DD
metsyslatigidrofylppusrewopV5
desutonfi
)
CS
rotallicsolatsyrcrofWOLdna,edomtupnikcolclanretxerofHGIH.tcelesedomtupnikcolC
sikcolcrotallicsolatsyrc,)WOLTSR(tesergniruD.tuptuolangisnoitazinorhcnysetisopmoC
oN.tuptuosikcolclexip,)WOLTSR(tesergniruD.tuptuokcehclangisnoitazinorhcnyslanretxE
esu,desutonsitiucricnoitarapescnyslanretnifI.tupnitiucricnoitarapesnoitazinorhcnyS
cnyslanretnifilangisNICNYSstuptuO.tuptuotiucricnoitarapesnoitazinorhcnysetisopmoC
Specifications
Absolute Maximum Ratings
retemaraPlobmySsnoitidnoCsgnitaRtinU
V
,
egatlovylppuS
egatlovtupnIV
egatlovtuptuOV
noitapissidrewopelbawollAP
erutarepmetgnitarepOrpoT – 07+ot03
erutarepmetegarotSgtsT – 521+ot04
Reommended Operating Conditions at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppuscigoLV
egatlovylppusgolanAV
egnaregatlovylppuscigoLV
egnaregatlovylppusgolanAV
Pin Assignment
1DD
V
2DD
I
O
Ta = 25˚C
D
1DD
2DD
1DD
2DD
VSS– Vot3.0
VSS– Vot3.0
VSS– Vot3.0
0.7+
SS
DD
DD
V72.1(ot5.4
V
3.0+
V
3.0+
V
053Wm
˚C
˚C
0.5V
0.5V
5.5ot5.4V
)V
1DD
No.4359–3/12
LC74721, 74721M
Electrical Characteristics at Ta = –30 to +70˚C, V
retemaraPlobmySsnoitidnoC
V
1DD
V
2DD
tnerructupni
egatlovtupni
egatlov
egatlovtupni
egatlovtupniNIXV
egatlovtuptuo
egatlovtuptuo
tnerrucylppuscigolI
tnerrucylppusgolanaI
tnerrucegakaeltupniNIVCI
tnerrucegakaeltuptuoTUOVCI
level-wolNICSOdna3LRTC,2LRTC,1LRTC
tnerructupnilevel-hgih3LRTCdna
egatlovtupnioedivetisopmocNIVCV
egatlovcnysTUOVCV
egatlovlatsedepTUOVCV
egatlovredrobTUOVCV
egatlovretcarahcTUOVCV
ycneuqerfrotallicsoTUOXdnaNIXf
2LRTC,NIPES,1LRTC,KLCS,NIS,SC,TSR
egatlovtupnilevel-wolKLCSdnaNIS,SC,TSRV
level-wolNIPESdna3LRTC,2LRTC,1LRTC
tupnilevel-hgihKLCSdnaNIS,SC,TSR
level-hgihNIPESdna3LRTC,2LRTC,1LRTC
egatlovtupnioedivetisopmocNICNYSV
level-wolTUOPESdnaCNYS,TUONYSC
level-hgihTUOPESdnaCNYS,TUONYSC
egatlovtsrubroloclevel-wolTUOVCV
egatlovtsrubroloclevel-hgihTUOVCV
egatlovrolocdnuorgkcablevel-wolTUOVCV
egatlovrolocdnuorgkcablevel-hgihTUOVCV
ecnatsiserpu-llupKLCSdnaNIS,SC,TSRR
ycneuqerfrotallicsoTUOCSOdnaNICSOf
1DD
V
2DD
1L
2L
I
V=IV
LI
I
V=IV
HI
1LI
V
2LI
V
1HI
V
2HI
1I
2I
3I
V
V
V
1LO
V
1HO
NS
DP
LBC
HBC
LSR
HSR
KB
AHC
UP
1CSO
2CSO
Notes
1. CV
2. CV
OUT
OUT
at V
at V
DD1
DD1
= V
= V
= 5V, 0.8V sync level
DD2
= 5V, 1.0V sync level
DD2
= 5V, unless otherwise noted
DD1
sgnitaR
nimpytxam
rotallicsoCLzHM8
V5=02Am
2DD
1SS
1DD
kaepotkaepderusaeM0.2p-pV
kaepotkaepderusaeM0.2
f,tupnikcolclanretxE
f2=
NI
5.4=,VI
1DD
5.4=,VIHO=– Am0.15.3V
1DD
.1etoneeS07.028.0
.2etoneeS78.099.0
.1etoneeS72.193.115.1V
.2etoneeS44.165.186.1V
.1etoneeS89.001.122.1V
.2etoneeS51.172.193.1V
.1etoneeS85.107.128.1V
.2etoneeS47.168.189.1V
.1etoneeS24.145.166.1V
.2etoneeS95.117.138.1V
.1etoneeS49.160.281.2V
.2etoneeS11.232.253.2V
.1etoneeS05.126.147.1V
.2etoneeS86.108.129.1V
.1etoneeS16.237.258.2V
.2etoneeS08.229.240.3V
f2(CSTN
)951.7zHM
CS
f4(CSTN
)813.41zHM
CS
f4(M-LAP
)203.41zHM
CS
rotallicsoCL5
Am0.1=
LO
f4ro
CS
,rotallicsolatsyrczHM951.7,nepostuptuollA
– 0.1Aµ
VSS–
3.0
VSS–
3.0
V8.0
1DD
V7.0
1DD
CS
sniptasgnitteslanoitponosdnepeD5205
02.0
V2.0
V3.0
V
1DD
V
1DD
51Am
1
1
0.1Aµ
1DD
1DD
3.0+
3.0+
5.2
0.5
0.1
49.0
11.1
09
01
tinU
Aµ
Aµ
V
V
V
V
p-pV
p-pV
V
V
V
kΩ
zHM
Timing Characteristics at Ta = –30 to +75˚C, V
retemaraPlobmySsnoitidnoC
htdiwesluptupniKLCSt
htdiwesluptupnilevel-hgihSCt
emitputestupniSCt
emitputestupniatadNISt
emitdlohtupniSCt
emitdlohtupniatadNISt
emitetirwdrowatadtib-8t
emitetirwatadMARt
)KLCS(W
)SC(W
)SC(US
)NIS(US
)SC(H
)NIS(H
DROW
TW
= 5 ±0.5V
DD1
sgnitaR
nimpytxam
002sn
1sµ
002sn
002sn
2sµ
002sn
2.4sµ
1sµ
No.4359–4/12
tinU
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