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
Single-chip PLL and Microcontroller
with LCD Driver
Ordering number:ENN*4350
LC7234-8460
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Preliminary
Overview
The LC7234-8460 is a single-chip microcontroller that incorporates a phase-locked loop (PLL) and a liquid crystal
display driver.
The LC7234-8460 operates over the American, European,
Chinese, Middle Eastern, Canadian and Australian LW,
MW, SW and FM bands, and incorporates preset-channel
memory, automatic or manual tuning, high-speed station
search, and clock and timer functions.
The LC7234-8460 operates from a 5 V supply and is a v ailable in 64-pin QIPs.
Features
• Operates over the LW, MW, SW1, SW2 and FM bands.
• Three selectable preset memory configurations.
• Automatic tuning or manual preset memory scan.
• High-speed station search.
FM band: 60 ms per step.
AM band: 70 ms per step.
• Clock function.
• ON, OFF and SLEEP timer functions.
• Logic-level and momentary switch band select inputs.
• LCD display with wide viewing angle and high contrast
over a wide operating temperature range.
• On-chip amplifier for external lowpass filter.
• External RC network for reset not required.
• Forced mono mode.
• High signal-to-noise ratio.
• Single 5 V supply.
• 64-pin QIPs.
Package Dimensions
unit:mm
3159-QIP64E
[LC7234-8460]
17.2
14.0
0.8
0.35
15.6
17.2
1.6
14.0
1.0
48
1.0
49
0.8
64
1.0
1
Pin Assignment
1.6
1.0
33
32
17
16
0.8
SANYO : QIP64E
3.0max
0.15
0.1
2.7
Top view
O1501TN (KT)/32693JN No.4350–1/23
Pin Function
1N IX. noitcennoctupnirotallicsolatsyrczH M5.4
22 TSET. DN G otdetcennocyllamroN.tupnitseT
3D S
4O ERETS
51 D NAB
60 DNAB
7T S/O M
8M A/M F
9) L(S/M
01W S
11E TU M A
21M F
31T U O R E MIT
71 ot415 T ot8T
22 ot810 T ot4T
62 ot320 K ot3KV ottcennoC.stupninacsyek H GIH-evitcA
94 ot721 S ot32S. esu nitonnehw nepo evaeL.stuptuorevirdtnemgeS
15,051 M O C,2M O C .esunitonnehw nepoevaeL.stuptuorevirdnom m oC
25D LO H
35T SET .noitamrofnirehtrufrofnoitpircsedyektseT ehteeS.tupnitsetH GIH-evitcA
45N IFIV ottcennoC.tupnilangis FIMF/M A
55T N O C RE MIT
65VD Dylppus V5
75C S O M FV ottcennoC.tupnirotallicsolacolM F
85C S O M AV ottcennoC.tupnirotallicsolacolM A
95VSSdnuorG
06O E. tuptuorotarapmocesahP
16N IAV ottcennoC.noitcennoctupnireifilpmaretlifssapwoL
26T U O AV ottcennoC.noitcennoctuptuoreifilpmaretlifssapwoL
361 TSET. DN G otdetcennocyllamroN.tupnitseT
46T U OX. noitcennoctuptuorotallicsolatsyrczH M5.4
LC7234-8460
rebmuNe maNn oitpircseD
V ottcennoC
SS
V ottcennoC
D D
.esunitonnehw
V ottcennoC
D D
.esunitonnehw
.esunitonnehw
.esunitonnehw nepoevaeL.teserretfa
.esunitonnehw nepoevaeL.teser
.esunitonnehw nepoevaeL.teserretfa
.esunitonnehw nepoevaeL
.esunitonnehw nepoevaeL.teser
I(detcelessiedom dloh,gnitarepo
D D
SS
.esunitonnehw
SS
SS
.detcetedsinoitatsanehw evitcasitupnisiht,gninutotuagniruD.tupnitcetednoitats W OL-evitcA
.N O siD EL yalpsid O ERETS eht,edom M F gnirud W OLneh W .tupnitcetedoerets W OL-evitcA
.selbattcelesdnabehteeS.0siD NBLES nehw evitcA.stupnitcelesdnaB
level W OL.H GIH nehw oeretsdna W OLnehw onoM.tuptuorotacidnioerets/onom H GIH-evitcA
retfalevelH GIH.H GIH nehw M F dna W OLnehw M A.tuptuotcelesdnab M A/MF H GIH-evitcA
.esunitonnehw nepoevaeL.teserretfalevelW OL
.esunitonnehw nepoevaeL.teserretfalevelH GIH
SS
I(detcelessiedom pukcab,gnitarepotonsikcolceht
.esusitonnehw
D D
.esunitonnehw
.esunitonnehw
.esunitonnehw
SS
SS
.).xam Aµ5 =
.esunitonnehw
.esunitonnehw
.W OLnehw)W L(W S dna H GIH nehw W M .tuptuotcelesdnabevawtrohs/muidem W OL-evitcA
level W OL.H GIH nehw 2 W S dna W OLnehw 1 W S.tuptuotcelesdnabevawtrohs H GIH-evitcA
.ycneuqerfreviecergnignahcnehwtuptuooiduaehtstuC.tuptuolortnocetum oidua H GIH-evitcA
.teserretfalevel W OL.H GIH nehw M A dna W OLnehw M F.tuptuotceles M F/M A H GIH-evitcA
retfalevelW OL.noitarepoedom peelsdnaremitgnirud H GIH.tuptuolortnocremitH GIH-evitcA
noitisnartH GIH-ot-W OL anehw dennacssixirtam ehT.stuptuonacsxirtam edoid H GIH-evitcA
nepo evaeL.teserretfalevelW OL.degnahcsah atadfidezilaitinisieciveD.DLO H nosrucco
yekgnidnopserrocehtnehw ylnodennacssixirtam yekehT.stuptuonacsxirtam yek H GIH-evitcA
.esunitonnehw nepoevaeL.teserretfalevelH GIH.nacshcaeretfa H GIH seoG.desserpsi
sikcolcehtdnasrucconoitisnart W OL-ot-H GIH a neh W .tupnilortnocedom dloh W OL-evitcA
dnasrucconoitisnart W OL-ot-H GIH a neh W .).pytA m7.0 =
.H GIH nehw gnitarepotondna W OLnehw gnitareporemiT.tupnilortnocremit W OL-evitcA
Specifications
Absolute Maximum Ratings at Ta = 25˚C, V SS = 0V
retemaraPl obmySs noitidnoCs gnitaRt inU
egatlovylppuSV
egatlovtupnI
egatlovtuptuO
tnerructuptuO
noitapissidrewopelbawollAx am dP= aT– 5 8+ ot04° C 0 04W m
erutarepmetgnitarepOr poT –5 8+ ot04
erutarepmetegarotSg tsT –5 21+ ot54
D D
V
1NI
V
2NI
V
1TU O
V
2TU O
I
1TU O
I
2TU O
I
3TU O
I
4TU O
1D NAB
TU OA
–5 .6+ot3.0
,0DNAB,TN O C RE MIT,O ERETS,DS,TSET,DLO H
stupnirehtollA
TU OA,M A/MF,TS/O M
stuptuorehtollA
M A/MF,TS/O M
8T ot6T,TU O RE MIT,M F,ETU M A,W S,)L(S/M
5T ot0T
–V ot3.0
–V ot3.0
–3 1+ot3.0
DD
–5 1+ot3.0
DD
V
V
3.0+
V
3.0+
5ot0
3ot0
A m
1ot0
2ot0
˚C
˚C
No.4350–2/23
LC7234-8460
Reommended Operating Conditions at Ta = –40 to +85˚C, V DD = 3.5 to 5.5V
retemaraPl obmySs noitidnoC
V
egatlovylppuS
egatlovlevel-hgihtupnI
egatlovlevel-woltupnI
ycneuqerftupnI
edutilpmatupnI
1D D
2D D
V
3D D
V
1HI
2HI
V
3HI
V
1LI
2LI
V
3LI
f
1NI
f
2NI
f
3NI
f
4NI
f
5NI
V
1NI
V
2NI
V
4,3NI
V
5NI
DLO HV 8.0
DLO H0 V 4.0
NIX0 .45 .4
,CS O MFV
,NIFIV
5NI
NIX0 5.0
CS O MF0 1.0
CS O M A0 1.0
NIFI0 1.05 .1
Electrical Characteristics Under recommended operating conditions
retemaraPl obmySs noitidnoC
egatlovnoitcetednwod-rewoPV
terruclevel-hgihtupnI
terruclevel-woltupnI
egatlovgnitaolftupnIV
ecnatsisernwod-lluPR
tnerrucegakaelFFOtuptuO
egatlovlevel-hgihtuptuO
egatlovlevel-woltuptuO
TED
I
1HI
I
2HI
I
3HI
I
4HI
I
5HI
I
1LI
I
2LI
I
3LI
I
4LI
FI
VIV=
VIV=
VIV=
V:NIX
V:NIA
V:NIA
IV=D D
IV=D D
SS
SS
SS
IV=SS
3K ot0K
DP
I
I
I
I
I
I
V
1H O
V
2H O
V
3H O
V
4H O
V
5H O
V
6H O
V
1LO
V
2LO
V
3LO
V
4LO
V
5LO
V
6LO
V
7LO
V
8LO
V:OE
1HFF O
2HFF O
OV=D D
V:)L(S/M
3HFF O
V:OE
OV=SS
I:OE
O
I:OE
O
V:TU OA
O
V:)L(S/M
I:)L(S/M
O
I:TU OX
O
I:)L(S/M
O
I:TU OX
O
I:TU OA
O
4HFF O
1LFFO
2LFFO
gnitarepoLLP,UPC5 .45 .5
gnitarepo UPC5 .35 .5
noitneterataD3 .15 .5
TSET,3K ot0KV 6.0
TSET,3K ot0K0 V 2.0
,V
2NI
1D D
,)W M,W L(CSO M AV
,V
3NI
,)W S(CSO M AV
,V
4NI
,V
1D D
V:1DNAB,0D NAB
I
1D D
1D D
V5.5=
V0.5=0 .20 .55 1
V:3K ot0K
IV=D D
V:NIFI,NIM A,NIMF
IV=D D
V0.5=4 0 10 3
V0.5=0 5
1D NAB,0DNAB,TSET
NIX,0 .20 .55 1
NIFI,CS O M A,CSO M F,0 .40 1
V,3K ot0K
V0.5=
D D
,W S,ETU M A,MF,TU O R E MIT,8T ot0T
OV=D D
V:TS/O M,M A/M F
V31=
O
V31=
,W S,ETU M A,MF,TU O R E MIT,8T ot0T
OV=SS
I:5T ot0T
A m1=
O
,W S,ETU M A,MF,TU O R E MIT,8T ot6T
A m1=
Aµ005=
Aµ002=
I:32S ot1S
O
I:5T ot1T
O
A m1.0 –=
I:2M O C,1M O C
Aµ52=
O
Aµ05=5 .00 .10 .2
,W S,ETU M A,MF,TU O R E MIT,8T ot6T
A m1=
Aµ05=0 .1
Aµ002=0 .1
I:32S ot1S
A m1.0=0 .1
O
V3.1=NIA,A m5=5 .0
I:2M O C,1M O C
Aµ52=3 .05 .05 7.0
O
I:TS/O M,M A/M F
A m5=
O
sgnitaR
nimp ytx am
TN O C RE MIT,1DNAB,0D NAB,O ERETS,DSV 7.0
D D
D D
D D
TN O C RE MIT,1DNAB,0D NAB,O ERETS,DS0 V 3.0
01
5.0
0.2
4.0
sgnitaR
nimp ytx am
7.20 .33 .3V
,TSET,TN O C RE MIT,O ERETS,DS,DLO H
,TN O C RE MIT,OERETS,DS,DLO H,
57
VDD–0 .2VDD–0 .1VDD–5 .0
VDD–0 .1
VDD–0 .1
VDD–0 .1
VDD–0 .1
VDD–5 7.0
001
VDD–5 .0VDD–3 .0
57.0
051( Ω )
Continued on next page.
0.8
V
D D
0.8
D D
D D
D D
0.5
031
01
04
21
5.1
5.1
5.1
0.3
1.00 1A n
0.3
03
10.0
1.0
10.0
01
V50.0
DD
002
01
0.3
0.5
0.1
01
0.3A µ
0.1
0.2
004( Ω )
tinU
V V
V V
V V
zH M
smrV
tinU
Aµ
Aµ
An
V
kΩ
An
Aµ
An
V
V
No.4350–3/23
Continued from preceding page.
retemaraPl obmySs noitidnoC
egatlovtuptuolevel-DIMV
tnerrucylppuS
Measurement Circuits
Hold mode I
DD2
LC7234-8460
sgnitaR
nimp ytx am
M
I
I
I
I
V
1D D
2D D
3D D
4D D
1D D
V
2D D
V
D D
V
D D
V,2M O C,1M O C
f,
2NI
I,V5=
D D
zH M031=5 10 2
tiucrictnemerusae m
Aµ02=0 .25 .20 .3V
O
edom dloH,gnitarepoLLP,
52=aT,gnitareporotallicsO,V5.5=° , C
tiucrictnemerusae m edom pukcaB
52=aT,deppotsrotallicsO,V2.2=° , C
tiucrictnemerusae m edom pukcaB
7.0
tinU
A m
5
Aµ
1
Note
*1 = pins K0 to K3, SD, STEREO, BAND0 and BAND1
Pins T0 to T8, TIMER OUT, FM, AMUTE, SW, M/S(L), FM/AM, MO/ST = open
Backup mode I
DD3
Note
Pins K0 to K4, SD, STEREO, BAND0, B AND1, T0 to T8, TIMER OUT, FM, AMUTE, SW, M/S(L), FM/AM, MO/ST,
S1 to S23, COM1, COM2 = open
No.4350–4/23
Functional Description
Band Coverage
noigeRd naB
M F0 .801ot0.780 5/0015 27 .01
a W M2 061ot1359 98 64/054
anihC
1setatS detinU
2setatS detinU
eporuE
tsaE elddiM
1 nom moC
2 nom moC
ailartsuA,adanaC
dlro W
b W M1 161ot2259 98 64/054
1 W S3 2.6ot82.25 5 0 54
2 W S5 8.12ot1.75 5 0 54
M F9 .701ot5.780 020 57 .01
b W M0 171ot0350 10 10 54
M F0 .801ot5.780 010 57 .01
b W M0 171ot0350 10 10 54
M F0 .801ot5.780 5/0015 27 .01
a W M2 061ot1359 98 64/054
b W M1 161ot2259 98 64/054
W L1 82 ot6411 18 64/054
M F0 .801ot5.780 5/0015 27 .01
a W M2 061ot1359 98 64/054
b W M1 161ot2259 98 64/054
1 W S3 2.6ot82.25 5 0 54
2 W S5 8.12ot1.75 5 0 54
M F0 .801ot5.780 5/0015 27 .01
a W M2 061ot1359 98 64/054
b W M2 061ot1359 98 64/054
A W S6 .51ot59.55 5 0 54
M F0 .801ot5.780 5/0015 27 .01
a W M2 061ot1359 98 64/054
b W M1 161ot2259 98 64/054
B W S5 .21 ot8.35 5 0 54
M F0 .801ot5.780 5/0015 27 .01
b W M1 161ot2259 98 64/054
M F0 .801ot5.780 5/0015 27 .01
a W M2 061ot1359 98 64/054
b W M1 161ot2259 98 64/054
W L1 82 ot6411 18 64/054
B W S5 .21 ot8.35 5 0 54
LC7234-8460
egnarycneuqerF
])zHk( M A)zH M( W S,M F[
petsycneuqerF
)zHk(
nosirapmoC
)zHk(ycneuqerf
ycneuqerfretneC
2B1 B0 B
])zHk( M A)zH M( MF[
000
001 a W M2 061ot1359 98 64/054
010 a W M2 061ot1359 98 64/054
100
011
101
110
111 a W M2 061ot1359 98 64/054
1 = DLR O W
Band Selection
When SELBND is 0, BAND0 and BAND1 select the
frequency band as shown in the following table. When
1D NAB0 D NAB
00 M FM FM FM FM FM F
01 ) M F(W L1 W S) M F() M F(W L
10 M AW MW MW MW MW M
11 ) M F() M F(2 W SA W SB W SB W S
,adanaC,.A.S.U
ailartsuA
eporuE
SELBND is 1, the BAND , FM , MW, LW and SW keys
select the frequency band.
,tsaE elddiM
anihC
1 nom moC2 nom moCd lro W
The frequency band selection determines the logic levels
of FM/AM, M/S(L), SW and FM as shown in the following table.
D NAB
M FH GIHW OLW OLW OL
W MW OLH GIHW OLH GIH
)W L(1 W SW OLW OLW OLH GIH
2 W SW OLW OLH GIHH GIH
M A/MF) L(S/MW SM F
eman niP
Preset Memory Channels
seulavyromemteserPs dnab ycneuqerfforebmuN
2H CSP1 H CSPM FW MW L/1 W S2 W S
008888
015555
10 6 1 888
11 l agellI
No.4350–5/23
LC7234-8460
SW band search ranges Key/diode Matrix
D NAB) zH M(egnarycneuqerF
1 W S
2 W S
A W S
B W S
594.2 ot82.2
4.3 ot2.3
0.4 ot8.3
60.5 ot57.4
32.6 ot59.5
3.7 ot1.7
9.9 ot5.9
5.21 ot56.11
8.31 ot6.31
6.51 ot1.51
9.71 ot55.71
58.12 ot54.12
32.6 ot59.5
3.7 ot1.7
9.9 ot5.9
5.21 ot56.11
8.31 ot6.31
6.51 ot1.51
0.4 ot8.3
60.5 ot57.4
32.6 ot59.5
3.7 ot1.7
9.9 ot5.9
5.21 ot56.11
Diode matrix functions
edoiD
xirtam
eman
KC OLC
H42/21
N OLO C
TNCFI
FILES
M FLES
W M LES
R MTLES
DLR O W
0s noitcnufkcolctuohtiW
1s noitcnufkcolchtiW
0k colcruoh-21
1k colcruoh-42
0s m 005rofFFO,sm 005rofN O.gnihsalF
1N O
0o N
1s eY
0z Hk054
1z Hk864
0z Hk001
1z Hk05
0t celesegnarycneuqerfa W M
1t celesegnarycneuqerfb W M
0r emittuohtiW
1r emithtiW
0t celesdnabtupnilevel-cigoL
D NABLES
1t celesdnab hctiwsyratnemoM
02 B dna1B,0B gnisutcelesdnaB
1d nab DLR O W stceleS
FFO/N On oitcnuF
Function positions
tuptuO
0TN O R E MIT/1H CF FO RE MIT/2HC3 HC4 H C
1T5 H C6 H C7 HC8 H C
2TP UN W O DS PE M
3TD N ABT S/O MP E ELSY ALPSID
4TM FW M) 1 W S( W L
5T0 B1 B2 B
6TK C OLCH 42/21N OLO CT N CFI
7TF ILESM FLESW MLESR M TLES
8TD NBLES1 H CSP2 H CSPD LR O W
0K1 K2 K3 K
tupnI
Notes
1. A indicates that the diode matrix element has either of the following configuations.
2. No indicates that the diode matrix element has a momentary switch configuation.
)2 W S(,W S
)B W S(,)A W S(
No.4350–6/23
LC7234-8460
LCD Display Driver
China and the Middel East
The configuation of the LCD panel used in China and the
Middle East only is shown in the following figure, and
the pin-to-segment relationship, in the following table.
tuptuotnemgeS
1S1 z Hk·W M3 1Sf 4a 4
2Sz H M ·1pd·W Sz H M ·2pd·M F4 1Sb 4g 4
3Sa 12 5 1Se 4c 4
4Sc 1b 16 1Sd 4R E MIT
5Sf 2a 27 1SN OF FO
6Sb 2g 28 1S5M A
7Se 2c 29 1Sf 7a 7
8Sd 2O ERETS0 2Sb 7g 7
9Sf 3a 31 2Se 7c 7
01Sb 3g 32 2Sd 7P EELS
11Se 3c 33 2Sc ,b6M P
21Sd 3N OLO C
1M O C2 M O C1 M O C2 M O C
tuptuorevirdnom moC
All other regions
The configuration of the LCD panel used in all regions
other than China and the Middle East is shown in the
tuptuotnemgeS
tuptuorevirdnom moC
following figure, and the pin-to-segment relationship, in
the following table.
No.4350–7/23