)7(&)7(&
.%LW.%LW 63, 6HULDO ((3520
'HVFULSWLRQ
7KH )7(& DQG )7(& DUH HOHFWULFDOO\ HUDVDEOH 3520 GHYLFHV WKDW XVH WKH 6HULDO 3HULSKHUDO ,QWHUIDFH 63,
IRU
FRPPXQLFDWLRQV 7KH )7(& LV .ELW [
DQG WKH )7(& LV .ELW [
7KH )7(& ((3520V DUH
RIIHUHG LQ D ZLGH RSHUDWLQJ YROWDJH UDQJH RI 9 WR 9 WR EH FRPSDWLEOH ZLWK PRVW DSSOLFDWLRQ YROWDJHV 7KH
)7(& LV GHVLJQHG WR EH DQ HIILFLHQW 63, ((3520 VROXWLRQ 7KH GHYLFHV DUH SDFNDJHG LQ SLQ &',3
8SLQ
/&& SLQ
62,& DQG SLQ )ODWSDFN
7KH IXQFWLRQDO IHDWXUHV RI WKH
)7(& DOORZ WKHP WR EH DPRQJ WKH PRVW DGYDQFHG VHULDO QRQYRODWLOH PHPRULHV
DYDLODEOH (DFK GHYLFH KDV D &KLS6HOHFW &6
SLQ DQG D ZLUH LQWHUIDFH RI 6HULDO 'DWD ,Q 6,
6HULDO 'DWD 2XW 62
DQG
6HULDO &ORFN 6&.
:KLOH WKH ZLUH LQWHUIDFH RI WKH )7(& SURYLGHV IRU KLJKVSHHG DFFHVV D +2/' SLQ DOORZV WKH
PHPRULHV WR LJQRUH WKH LQWHUIDFH LQ D VXVSHQGHG VWDWH ODWHU WKH +2/' SLQ UHDFWLYDWHV FRPPXQLFDWLRQ ZLWKRXW UHLQLWLDOLVLQJ
WKH VHULDO VHTXHQFH $ 6WDWXV 5HJLVWHU IDFLOLWDWHV D IOH[LEOH ZULWH SURWHFWLRQ PHFKDQLVP DQG D GHYLFHUHDG\ ELW 5'<
)($785(6
·
6HULDO 3HULSKHUDO ,QWHUIDFH 63,
&RPSDWLEOH
6XSSRUWV
9FF
9 WR 9
)($785(6
·
·
·
·
6HOI WLPHG ZULWH F\FOHV PV 7\SLFDO
+LJKUHOLDELOLW\
E\WH SDJH ZULWH PRGH
3DUWLDO
SDJH ZULWHV DOORZHG
)ODWSDFN
and 8-pin Plastic SOIC Packages
available
·
:LGHYROWDJH 2SHUDWLRQ
·
/RZ 3RZHU &026
$FWLYH &XUUHQW OHVV WKDQ P$ 9
6WDQE\ &XUUHQW OHVV WKDQ $ 9
·
SLQ
&',3
8SLQ
/&& SLQ
Pin Name
CS
SO
WP
GND
SI
SCK
HOLD
VCC
Function Block Diagram
DIP, SOIC, Flat Pack,
LCC Package
1
2
3
4
5
6
7
8
Table 1. Pin Configurations
2010
1/15
Rev 1.2
)7(&)7(&
.%LW.%LW 63, 6HULDO ((3520
3,1 '(6&5,37,216
&6 &KLS 6HOHFW
6&. 6HULDO 'DWD &ORFN
6, 6HULDO 'DWD ,QSXW
62 6HULDO 'DWD 2XWSXW
*1' *URXQG
9&&
3RZHU
:3 :ULWH 3URWHFW
:ULWH 3URWHFW :3 :3
7KH SXUSRVH RI WKLV LQSXW VLJQDO LV
WR LQLWLDWH +DUGZDUH :ULWH 3URWHFWLRQ PRGH 7KLV PRGH
SUHYHQWV WKH %ORFN 3URWHFWLRQ ELWV DQG WKH :3(1 ELW LQ
WKH 6WDWXV 5HJLVWHU IURP EHLQJ DOWHUHG 7R FDXVH
+DUGZDUH :ULWH 3URWHFWLRQ :3 PXVW EH /RZ DW WKH VDPH
WLPH :3(1 LV :3 PD\ EH KDUGZLUHG WR 9FF RU *1'
3,1 '(6&5,37,216
6HULDO &ORFN 6&.
7KLV WLPLQJ VLJQDO SURYLGHV
V\QFKURQLVDWLRQ EHWZHHQ WKH PLFURFRQWUROOHU DQG
)7(& 2S&RGHV E\WH DGGUHVVHV DQG GDWD DUH
ODWFKHG RQ 6, ZLWK D ULVLQJ HGJH RI WKH 6&. 'DWD RQ 62
LV UHIUHVKHG RQ WKH IDOOLQJ HGJH RI 6&. IRU 63, PRGHV
DQG
6HULDO 'DWD ,QSXW 6,
7KLV LV WKH LQSXW SLQ
IRU DOO GDWD WKDW WKH )7(& LV UHTXLUHG WR UHFHLYH
6HULDO 'DWD 2XWSXW 62
7KLV LV WKH RXWSXW SLQ IRU DOO GDWD
WUDQVPLWWHG IURP WKH )7(&
+2/' +2/' +2/'
7KLV LQSXW VLJQDO LV XVHG WR VXVSHQG
WKH GHYLFH LQ WKH PLGGOH RI D VHULDO VHTXHQFH DQG
WHPSRUDULO\ LJQRUH IXUWKHU FRPPXQLFDWLRQ RQ WKH EXV 6,
62 6&.
7RJHWKHU ZLWK &KLS 6HOHFW WKH +2/' VLJQDO
DOORZV PXOWLSOH VODYHV WR VKDUH WKH EXV 7KH +2/' VLJQDO
WUDQVLWLRQV PXVW RFFXU RQO\ ZKHQ 6&. LV /RZ DQG EH
KHOG VWDEOH GXULQJ 6&. WUDQVLWLRQV 6HH )LJXUH IRU
+ROG WLPLQJ
7R GLVDEOH WKLV IHDWXUH +2/' PD\ EH
KDUGZLUHG WR 9FF
6(5,$/ ,17(5)$&( '(6&5,37,21
0$67(5 7KH GHYLFH WKDW SURYLGHV D FORFN VLJQDO
6/$9( 7KH )7(& LV D VODYH EHFDXVH WKH FORFN
VLJQDO LV DQ LQSXW
75$160,77(55(&(,9(5 7KH )7(& KDV ERWK GDWD
LQSXW 6,
DQG GDWD RXWSXW 62
06% 7KH PRVW VLJQLILFDQW ELW ,W LV DOZD\V WKH ILUVW ELW
WUDQVPLWWHG RU UHFHLYHG
23&2'( 7KH ILUVW E\WH WUDQVPLWWHG WR WKH VODYH IROORZLQJ
&6 WUDQVLWLRQ WR /2: ,I WKH 23&2'( LV D YDOLG PHPEHU
RI WKH )7(& LQVWUXFWLRQ VHW 7DEOH
WKHQ LW LV
GHFRGHG DSSURSULDWHO\ ,I WKH 23&2'( LV QRW YDOLG DQG
WKH 62 SLQ UHPDLQV LQ KLJK LPSHGDQFH
&KLS 6HOHFW &6 &6
7KH &6 SLQ DFWLYDWHV WKH GHYLFH
8SRQ SRZHUXS &6 VKRXOG IROORZ 9FF :KHQ WKH GHYLFH
LV WR EH HQDEOHG IRU LQVWUXFWLRQ LQSXW WKH VLJQDO UHTXLUHV D
+LJKWR/RZ WUDQVLWLRQ :KLOH &6 LV VWDEOH /RZ WKH
PDVWHU DQG VODYH ZLOO FRPPXQLFDWH YLD 6&. 6, DQG 62
VLJQDOV 8SRQ FRPSOHWLRQ RI FRPPXQLFDWLRQ &6 PXVW EH
GULYHQ +LJK $W WKLV PRPHQW WKH VODYH GHYLFH PD\ VWDUW
LWV LQWHUQDO ZULWH F\FOH :KHQ &6 LV KLJK WKH GHYLFH
HQWHUV D SRZHUVDYLQJ VWDQGE\ PRGH XQOHVV DQ LQWHUQDO
ZULWH RSHUDWLRQ LV XQGHUZD\ 'XULQJ WKLV PRGH WKH 62
SLQ EHFRPHV KLJK LPSHGDQFH
2010
2/15
Rev 1.2
)7(&)7(&
.%LW.%LW 63, 6HULDO ((3520
67$786 5(*,67(5
1RWHV
;
'RQ¶W FDUH ELW
'XULQJ LQWHUQDO ZULWH F\FOHV ELWV WR DUH WHPSRUDULO\
¶V
7KH VWDWXV UHJLVWHU FRQWDLQV ELWV IRU ZULWH SURWHFWLRQ
FRQWURO DQG ZULWH VWDWXV 6HH 7DEOH
,W LV WKH RQO\ UHJLRQ
RI PHPRU\ RWKHU WKDQ WKH PDLQ DUUD\ WKDW LV DFFHVVLEOH
E\ WKH XVHU
7KH 6WDWXV 5HJLVWHU LV 5HDG2QO\ LI HLWKHU D
+DUGZDUH
:ULWH 3URWHFWLRQ LV HQDEOHG RU E
:(1 LV VHW WR ,I QHLWKHU
LV WUXH LW FDQ EH PRGLILHG E\ D YDOLG LQVWUXFWLRQ
5HDG\ 5'<
%LW :KHQ 5'< LW LQGLFDWHV WKDW WKH
GHYLFH LV EXV\ ZLWK D ZULWH F\FOH 5'< LQGLFDWHV WKDW
WKH GHYLFH LV UHDG\ IRU DQ LQVWUXFWLRQ ,I 5'< WKH RQO\
FRPPDQG WKDW ZLOO EH KDQGOHG E\ WKH GHYLFH LV 5HDG
6WDWXV 5HJLVWHU 'RQ¶W &DUH %LWV (DFK RI WKHVH ELWV
FDQ UHFHLYH HLWKHU RU EXW YDOXHV ZLOO QRW EH UHWDLQHG
:KHQ WKHVH ELWV DUH UHDG IURP WKH UHJLVWHU WKH\ DUH
DOZD\V
:ULWH 3URWHFW (QDEOH :3(1
%LW 7KLV ELW FDQ EH XVHG LQ
FRQMXQFWLRQ ZLWK :3 SLQ WR HQDEOH +DUGZDUH :ULWH
3URWHFWLRQ ZKLFK FDXVHV WKH 6WDWXV 5HJLVWHU WR EH
UHDGRQO\ 7KH PHPRU\ DUUD\ LV QRW SURWHFWHG E\ WKLV
PRGH +DUGZDUH :ULWH 3URWHFWLRQ UHTXLUHV WKDW :3
DQG :3(1 LW LV GLVDEOHG RWKHUZLVH 1RWH :3(1
FDQQRW EH FKDQJHG IURP WR LI WKH :3 SLQ LV DOUHDG\
VHW WR /RZ 6HH 7DEOH IRU GDWD SURWHFWLRQ UHODWLRQVKLS
%ORFN 3URWHFW %3 %3
%LWV 7RJHWKHU WKHVH ELWV
UHSUHVHQW RQH RI IRXU EORFN SURWHFWLRQ FRQILJXUDWLRQV
LPSOHPHQWHG IRU WKH PHPRU\ DUUD\ 6HH 7DEOH IRU
GHWDLOV
%3 DQG %3 DUH QRQYRODWLOH FHOOV VLPLODU WR
UHJXODU DUUD\ FHOOV DQG IDFWRU\ SURJUDPPHG WR 7KH
EORFN RI PHPRU\ GHILQHG E\ WKHVH ELWV LV DOZD\V
SURWHFWHGUHJDUGOHVV RI WKH VHWWLQJ RI :3(1 :3
RU :(1
'RQ¶W &DUH %LWV (DFK RI WKHVH ELWV FDQ UHFHLYH HLWKHU
RU EXW YDOXHV ZLOO QRW EH UHWDLQHG :KHQ WKHVH ELWV
DUH UHDG IURP WKH UHJLVWHU WKH\ DUH DOZD\V
:ULWH 3URWHFW (QDEOH :3(1
%LW 7KLV ELW FDQ EH XVHG LQ
FRQMXQFWLRQ ZLWK :3 SLQ WR HQDEOH +DUGZDUH :ULWH
3URWHFWLRQ ZKLFK FDXVHV WKH 6WDWXV 5HJLVWHU WR EH
UHDGRQO\ 7KH PHPRU\ DUUD\ LV QRW SURWHFWHG E\ WKLV
PRGH +DUGZDUH :ULWH 3URWHFWLRQ UHTXLUHV WKDW :3
DQG :3(1 LW LV GLVDEOHG RWKHUZLVH 1RWH :3(1
FDQQRW EH FKDQJHG IURP WR LI WKH :3 SLQ LV DOUHDG\
VHW WR /RZ 6HH 7DEOH IRU GDWD SURWHFWLRQ UHODWLRQVKLS
2010
3/15
Rev 1.2
)7(&)7(&
.%LW.%LW 63, 6HULDO ((3520
'(9,&( 23(5$7,21
7KH RSHUDWLRQV RI WKH )7(& DUH FRQWUROOHG E\ D VHW RI LQVWUXFWLRQV WKDW DUH FORFNHGLQ VHULDOO\ 6, SLQ 6HH 7DEOH
7R
EHJLQ DQ LQVWUXFWLRQ WKH FKLS VHOHFW &6
VKRXOG EH GURSSHG /RZ 6XEVHTXHQWO\ HDFK /RZWR+LJK WUDQVLWLRQ RI WKH FORFN
6.
ZLOO ODWFK D VWDEOH YDOXH RQ WKH 6, SLQ $IWHU WKH ELW RSFRGH LW PD\ EH DSSURSULDWH WR FRQWLQXH WR LQSXW DQ DGGUHVV RU
GDWD WR 6, RU WR RXWSXW GDWD IURP 62 'XULQJ GDWD RXWSXW YDOXHV DSSHDU RQ WKH IDOOLQJ HGJH RI 6. $OO ELWV DUH WUDQVIHUUHG
ZLWK 06% ILUVW 8SRQ WKH ODVW ELW RI FRPPXQLFDWLRQ EXW SULRU WR DQ\ IROORZLQJ /RZWR +LJK WUDQVLWLRQ RI 6. &6 VKRXOG EH UDLVHG
+LJK WR HQG WKH WUDQVDFWLRQ 7KH GHYLFH WKHQ ZRXOG HQWHU 6WDQGE\ 0RGH LI QR LQWHUQDO SURJUDPPLQJ ZHUH XQGHUZD\
;
'RQ¶W FDUH ELW )RU FRQVLVWHQF\ LW LV EHVW WR XVH ³´
7KH GHYLFH FDQ EH FRPSOHWHO\ SURWHFWHG IURP
PRGLILFDWLRQ E\ UHVHWWLQJ :(1 WR WKURXJK WKH :5',
LQVWUXFWLRQ 6HH )LJXUH IRU WLPLQJ
6RPH DGGUHVV ELWV DUH GRQ¶W FDUH 6HH 7DEOH
,I WKH ELWV FORFNHGLQ IRU DQ RSFRGH DUH LQYDOLG 62
UHPDLQV KLJK LPSHGDQFH DQG XSRQ
&6 JRLQJ +LJK
WKHUH LV QR DIIHFW $ YDOLG RSFRGH ZLWK DQ LQYDOLG
QXPEHU RI ELWV FORFNHGLQ IRU DGGUHVV RU GDWD ZLOO FDXVH
DQ DWWHPSW WR PRGLI\ WKH DUUD\ RU 6WDWXV 5HJLVWHU WR EH
LJQRUHG
5($' 67$786 5(*,67(5 5'65
7KH 5HDG 6WDWXV LQVWUXFWLRQ WHOOV WKH XVHU WKH VWDWXV RI
:ULWH 3URWHFW (QDEOH WKH %ORFN 3URWHFWLRQ VHWWLQJ VHH
7DEOH
WKH :ULWH (QDEOH VWDWH DQG WKH 5'< VWDWXV 5'65
LV WKH RQO\ LQVWUXFWLRQ DFFHSWHG ZKHQ D ZULWH F\FOH LV
XQGHUZD\ ,W LV UHFRPPHQGHG WKDW WKH VWDWXV RI :ULWH
(QDEOH DQG 5'< EH FKHFNHG HVSHFLDOO\ SULRU WR DQ
DWWHPSWHG PRGLILFDWLRQ RI GDWD 7KH ELWV RI WKH 6WDWXV
5HJLVWHU FDQ EH UHSHDWHGO\ RXWSXW RQ 62 DIWHU WKH LQLWLDO
2SFRGH 6HH )LJXUH IRU WLPLQJ
:KHQ 9FF LV LQLWLDOO\ DSSOLHG WKH GHYLFH SRZHUV XS ZLWK
ERWK VWDWXV UHJLVWHU DQG HQWLUH DUUD\ LQ D ZULWHGLVDEOHG
VWDWH 8SRQ FRPSOHWLRQ RI :ULWH 'LVDEOH :5',
:ULWH
6WDWXV 5HJLVWHU :565
RU :ULWH 'DWD WR $UUD\ :5,7(
WKH
GHYLFH UHVHWV WKH :(1 ELW LQ WKH 6WDWXV 5HJLVWHU WR 3ULRU
WR DQ\ GDWD PRGLILFDWLRQ D :5(1 LQVWUXFWLRQ LV
QHFHVVDU\ WR VHW :(1 WR 6HH )LJXUH IRU WLPLQJ
2010
4/15
Rev 1.2
)7(&)7(&
.%LW.%LW 63, 6HULDO ((3520
:5,7( 67$786 5(*,67(5 :565
7KLV LQVWUXFWLRQ OHWV WKH XVHU FKRRVH D %ORFN 3URWHFWLRQ
VHWWLQJ DQG VHW RU UHVHW WKH :3(1 ELW 7KH YDOXHV RI WKH
RWKHU GDWD ELWV LQFRUSRUDWHG LQWR :565 FDQ EH RU
DQG DUH QRW VWRUHG LQ WKH 6WDWXV 5HJLVWHU :565 ZLOO EH
LJQRUHG XQOHVV ERWK WKH IROORZLQJ DUH WUXH D
:(1
GXH WR D SULRU :5(1 LQVWUXFWLRQ DQG E
+DUGZDUH :ULWH
3URWHFWLRQ LV QRW HQDEOHG 6HH 7DEOH IRU GHWDLOV
([FHSW IRU WKH 5'< VWDWXV WKH YDOXHV LQ WKH 6WDWXV 5HJLVWHU
UHPDLQ XQFKDQJHG XQWLO WKH PRPHQW ZKHQ WKH ZULWH
F\FOH LV FRPSOHWH DQG WKH UHJLVWHU LV XSGDWHG 1RWH
:3(1 FDQ EH FKDQJHG IURP WR RQO\ LI :3 LV DOUHDG\
VHW +LJK 2QFH FRPSOHWHG :(1 LV UHVHW IRU FRPSOHWH
FKLS ZULWH SURWHFWLRQ 6HH )LJXUH IRU WLPLQJ
7KH :5,7( LQVWUXFWLRQ EHJLQV ZLWK WKH RSFRGH WKH ELW
DGGUHVV RI WKH ILUVW E\WH WR EH PRGLILHG DQG WKH ILUVW
GDWD E\WH $GGLWLRQDO GDWD E\WHV PD\ EH ZULWWHQ
VHTXHQWLDOO\ WR WKH DUUD\ DIWHU WKH ILUVW E\WH (DFK :5,7(
LQVWUXFWLRQ FDQ DIIHFW WKH FRQWHQWV RI D E\WH SDJH
EXW QR PRUH 7KH SDJH EHJLQV DW DGGUHVV ;;;;;;;;
;;; DQG HQGV ZLWK ;;;;;;;; ;;; ,I WKH
ODVW E\WH RI WKH SDJH LV LQSXW WKH DGGUHVV UROOV RYHU WR
WKH EHJLQQLQJ RI WKH VDPH SDJH 0RUH WKDQ GDWD
E\WHV FDQ EH LQSXW GXULQJ WKH VDPH LQVWUXFWLRQ EXW XSRQ
D FRPSOHWHG ZULWH F\FOH D SDJH ZRXOG RQO\ FRQWDLQ WKH
ODVW E\WHV
7KH UHJLRQ RI WKH DUUD\ GHILQHG ZLWKLQ %ORFN 3URWHFWLRQ
FDQQRW EH PRGLILHG DV ORQJ DV WKDW EORFN FRQILJXUDWLRQ
LV VHOHFWHG 7KH UHJLRQ RI WKH DUUD\ RXWVLGH WKH %ORFN
3URWHFWLRQ FDQ RQO\ EH PRGLILHG LI :ULWH (QDEOH :(1
LV
VHW WR 7KHUHIRUH LW PD\ EH QHFHVVDU\ WKDW D :5(1
LQVWUXFWLRQ RFFXU SULRU WR :5,7( +DUGZDUH :ULWH
3URWHFWLRQ KDV QR DIIHFW RQ WKH PHPRU\ DUUD\ 2QFH
:ULWH LV FRPSOHWHG :(1 LV UHVHW IRU FRPSOHWH FKLS ZULWH
SURWHFWLRQ 6HH )LJXUH IRU WLPLQJ
7KLV LQVWUXFWLRQ EHJLQV ZLWK WKH RSFRGH DQG WKH ELW
DGGUHVV DQG FDXVHV WKH VHOHFWHG GDWD E\WH WR EH
VKLIWHG RXW RQ 62 )ROORZLQJ WKLV ILUVW GDWD E\WH DGGLWLRQDO
VHTXHQWLDO E\WHV DUH RXWSXW ,I WKH GDWD E\WH LQ WKH
KLJKHVW DGGUHVV LV RXWSXW WKH DGGUHVV UROOVRYHU WR WKH
ORZHVW DGGUHVV LQ WKH DUUD\ DQG WKH RXWSXW FRXOG ORRS
LQGHILQLWHO\ $W DQ\ WLPH D ULVLQJ &6 VLJQDO FRPSOHWHV WKH
RSHUDWLRQ 6HH )LJXUH IRU WLPLQJ
2010
5/15
Rev 1.2