QT60161 Datasheet, PDF (17/36 Pages) Quantum Research Group – 16 KEY QMatrix KEYPANEL SENSORS IC

‹4XDQWXP 5HVHDUFK *URXS /WG
 &RPPDQGV )XQFWLRQV
7KH FRPPDQG VWUXFWXUH LV GHVLJQHG WR PLQLPL]H FRQWURO DQG
GDWD WUDIILF $OO UHSHWLWLYH GDWD DQG VWDWXV FRPPDQGV IURP WKH
KRVW DUH VLQJOHE\WH DQG PRVW FRPPDQGV UHVXOW LQ VLQJOH
E\WH GHYLFH UHVSRQVHV %HKDYLRUDO VHWXS FRPPDQGV LQYROYH
PXOWLSOH E\WHV EXW WKHVH DUH LQIUHTXHQWO\ XVHG
6SHFLDO VFRSH FRPPDQGV H[LVW WR UHVWULFW VXEVHTXHQW
FRPPDQGV WR D VSHFLILF NH\ RU UDQJH RI NH\V 7KLV FRQWURO
VWUXFWXUH SHUPLWV PRVW PDWUL[ NH\V ZKLFK DUH XVXDOO\
LGHQWLFDO LQ VKDSH DQG VL]H WR EH SURJUDPPHG LQ EXON XVLQJ
D JOREDO VFRSH FRPPDQG IROORZHG E\ D VFRSH UHVWULFWLRQ WR
VSHFLILF NH\ V IROORZHG E\ PRUH NH\ SURJUDPPLQJ WR
SUHYHQW WKH QHHG IRU WHGLRXV NH\E\NH\ SURJUDPPLQJ DFURVV
DQ HQWLUH PDWUL[
7KHUH DUH IRXU W\SHV RI FRPPDQGV
'LUHFWLRQ  'HWHUPLQH ZKHWKHU VXEVHTXHQW FRPPDQGV DUH
XVHG WR JHW GDWD IURP RU SXW GDWD WR WKH SDUW
6FRSH  5HVWULFW WKH UDQJH RI HIIHFW RI VXEVHTXHQW
FRPPDQGV WR D VSHFLILF VHW RI NH\V
6WDWXV  &DXVH WKH SDUW WR UHVSRQG ZLWK NH\ LQIRUPDWLRQ
VXFK DV GHWHFWLRQV VLJQDOV HUURU FRGHV DQG WKH OLNH
6HWXS  0RGLI\ IXQFWLRQDOLW\ VXFK DV EXUVW OHQJWK WKUHVKROG
OHYHOV GULIW FRPSHQVDWLRQ FKDUDFWHULVWLFV HWF
6XSHUYLVRU\  6SHFLDO IXQFWLRQV VXFK DV GLDJQRVWLFV
FDOLEUDWLRQ HWF ZKLFK DIIHFW WKH SDUW DV D ZKROH
$OO FRPPDQG W\SHV FDQ EH LQWHUPL[HG (YHQ GXULQJ QRUPDO
GHYLFH RSHUDWLRQ LW LV SRVVLEOH WR XVH 6HWXS DQG 6XSHUYLVRU\
IXQFWLRQV WR DOWHU NH\ EHKDYLRU RQ WKH IO\ 7KHUH LV QR VSHFLDO
VHWXS PRGH 
*HW3XW 6FRSH DQG PDQ\ 6XSHUYLVRU\ IXQFWLRQV DUH YRODWLOH
DQG GR QRW SHUVLVW DIWHU D SRZHU GRZQ RU UHVHW F\FOH 6RPH
6XSHUYLVRU\ FRPPDQGV UHTXLUH WKDW WKH SDUW EH UHVHW LQ RUGHU
IRU WKH QHZ VHWWLQJV WR WDNH HIIHFW
1RWH WKDW WKH 6HWXS IXQFWLRQV ZULWH WR HHSURP DQG UHTXLUH
H[WUD WLPH IRU D UHVSRQVH EDFN WR WKH KRVW $OVR QRWH WKDW DV
ZLWK DOO HHSURP PHPRULHV WKHUH LV D UHFRPPHQGHG OLIHWLPH
OLPLW WR WKH QXPEHU RI ZULWHV WKLV OLPLW LV   F\FOHV
&RPPDQG IXQFWLRQV DUH VXPPDUL]HG LQ 6HFWLRQ 
,W LV KLJKO\ DGYLVHG WR WHVW WKH GHYLFH FKHFNVXP
FRPPDQG µ¶ SDJH  RU LQGLYLGXDO VHWWLQJV RU WKH
JHQHUDO GHYLFH VWDWXV µ¶ RQFH 6HWXSV KDYH EHHQ
SURJUDPPHG LQWR WKH SDUW HDFK WLPH WKH SDUW LV SRZHUHG
XS DQG SHULRGLFDOO\ ZKLOH UXQQLQJ
7KH SDUW EDFNV XS DOO HHSURP ORFDWLRQV LQWR )ODVK IURP
ZKLFK GDWD LV UHVWRUHG DXWRPDWLFDOO\ IROORZLQJ D UHVHW LI
HHSURP FRUUXSWLRQ LV GHWHFWHG 7KH SDUW VKRXOG DOVR EH
UHVHW DIWHU DQ\ 3XW FRPPDQG V LQ RUGHU WR IRUFH WKH FRS\
RI HHSURP GDWD LQWR )ODVK 6HH 6HFWLRQ 
 'LUHFWLRQ &RPPDQGV
6HWXS FRPPDQGV FDQ EH XVHG WR HLWKHU VHQG FRQWURO
LQIRUPDWLRQ WR WKH SDUW IRU SURJUDPPLQJ LQWR LWV LQWHUQDO
HHSURP RU WR H[WUDFW WKH FXUUHQW VHWWLQJ RI WKLV LQIRUPDWLRQ
7KH VDPH 6HWXS IXQFWLRQ FDQ GR HLWKHU 7R DFFRPSOLVK WKLV
WKH GHYLFH UHOLHV RQ GLUHFWLRQ FRQWURO YLD WKH *HW DQG 3XW
FRPPDQGV ,Q *HW PRGH D 6HWXS FRPPDQG ZLOO UHWXUQ
LQIRUPDWLRQ ,Q 3XW PRGH WKH EHKDYLRU RI WKH GHYLFH LV
DOWHUHG DQG RIWHQ D VHFRQG RSHUDQG E\WH PXVW EH VHQW
7KH SRZHUXS RU UHVHW GHIDXOW PRGH LV *HW 7KH FXUUHQW
*HW3XW PRGH SHUVLVWV XQWLO FRXQWHUPDQGHG E\ D GLIIHUHQW
*HW3XW FRPPDQG RU XQWLO WKH GHYLFH LV UHVHW RU SRZHUHG RII
,W LV DGYLVDEOH WR XVH 3XW PRGH RQO\ ZKHQ DFWXDOO\ ZULWLQJ
6HWXSV WR WKH GHYLFH ZKLFK ZLOO KDSSHQ LQIUHTXHQWO\ WKH SDUW
VKRXOG QRUPDOO\ EH OHIW LQ *HW PRGH *HW PRGH DFWV DV D ORFN
WR SUHYHQW DFFLGHQWDO FKDQJHV WR WKH LQWHUQDO HHSURP
0XOWLSOH GLUHFWLRQ FRPPDQGV RI WKH VDPH W\SH J J J J 
DUH KDUPOHVV DQG FDQ EH XVHG WR LQVXUH WKDW WKH SDUW GRHV QRW
DFFLGHQWDOO\ HQWHU 3XW PRGH IRU D SURORQJHG SHULRG IRU
H[DPSOH GXH WR QRLVH JOLWFKHV RQ WKH 63, OLQHV 7KH J
FRPPDQG FDQ EH UHSHDWHG HYHU\ IHZ VHFRQGV
J ;  *(7 &200$1'
6FRSH %\WHV  &PG
3XW
QD

*HW
QD
QD
QG %\WH 5DQJH
QD
QD
5HWXUQV
[
QD
/RZHUFDVH *  7KH J FRPPDQG FDXVHV WKH GHYLFH WR WUHDW DOO
VXEVHTXHQW 6HWXS FRPPDQGV DV *HWV  DIWHU ZKHQ D 6HWXS
FRPPDQG LV UHFHLYHG IURP WKH KRVW WKH SDUW ZLOO UHVSRQG E\
VHQGLQJ EDFN WKH FXUUHQW VWDWXV RI WKDW 6HWXS SDUDPHWHU
7KH J FRPPDQG LV DOZD\V VLQJOHE\WH DQG HFKRHV EDFN
LWVHOI
S ;  387 &200$1'
6FRSH %\WHV  &PG
3XW
QD

*HW
QD
QD
QG %\WH 5DQJH
QD
QD
5HWXUQV
[
QD
/RZHU FDVH S  7KH S FRPPDQG FDXVHV WKH GHYLFH WR WUHDW
DOO VXEVHTXHQW 6HWXS FRPPDQGV DV 3XWV  DIWHU ZKHQ D
E\WH 6HWXS FRPPDQG LV UHFHLYHG IURP WKH KRVW WKH SDUW ZLOO
UHVSRQG E\ SURJUDPPLQJ LQ WKH GHVLUHG SDUDPHWHU IRU WKH
NH\ V ZKLFK DUH DIIHFWHG
7KH S FRPPDQG LV DOZD\V VLQJOHE\WH DQG HFKRHV EDFN
LWVHOI


ZZZTSUR[FRP 47  5