Z86C9116VSC Datasheet, PDF (28/56 Pages) Zilog, Inc. – COMS Z8 ROMLess Microcontrollers

=&
&026 =^Š 520/HVV 0LFURFRQWUROOHUV

*HQHUDO3XUSRVH 5HJLVWHUV *35 *HQHUDOSXUSRVH UHJLVWHUV DUH XQGHILQHG DIWHU WKH GHYLFH
LV SRZHUHG XS 7KHVH UHJLVWHUV NHHS WKH PRVW UHFHQW YDOXH DIWHU DQ\ 5(6(7 DV ORQJ DV WKH
5(6(7 RFFXUV LQ WKH 9 YROWDJHVSHFLILHG RSHUDWLQJ UDQJH *HQHUDOSXUSRVH UHJLVWHUV
88
DUH QRW JXDUDQWHHG WR NHHS WKHLU PRVW UHFHQW VWDWH IURP LI 9 GURSV EHORZ WKH PLQLPXP
88
9 RSHUDWLQJ UDQJH
88
6WDFN 3RLQWHU 7KH =& KDV D ELW 6WDFN 3RLQWHU 63+ DQG 63/ XVHG IRU WKH H[WHUQDO
VWDFN WKDW UHVLGHV DQ\ZKHUH LQ WKH GDWD PHPRU\ $Q ELW 6WDFN 3RLQWHU 63/ LV XVHG IRU
WKH LQWHUQDO VWDFN WKDW UHVLGHV ZLWKLQ WKH  JHQHUDOSXUSRVH UHJLVWHUV 6WDFN 3RLQWHU +LJK
63+ LV XVHG DV D JHQHUDOSXUSRVH UHJLVWHU RQO\ ZKHQ XVLQJ DQ LQWHUQDO VWDFN
&RXQWHU7LPHUV 7KHUH DUH WZR ELW SURJUDPPDEOH FRXQWHUWLPHUV 7 DQG 7 HDFK
GULYHQ E\ LWV RZQ ELW SURJUDPPDEOH SUHVFDOHU 7KH 7 SUHVFDOHU LV GULYHQ E\ LQWHUQDO RU
H[WHUQDO FORFN VRXUFHV KRZHYHU WKH 7 SUHVFDOHU LV GULYHQ E\ WKH LQWHUQDO FORFN RQO\
)LJXUH 
7KH ELW SUHVFDOHUV FDQ GLYLGH WKH LQSXW IUHTXHQF\ RI WKH FORFN VRXUFH E\ DQ\ LQWHJHU
QXPEHU IURP WR  (DFK SUHVFDOHU GULYHV LWV FRXQWHU ZKLFK GHFUHPHQWV WKH YDOXH  WR
 WKDW LV ORDGHG LQWR WKH FRXQWHU :KHQ ERWK WKH FRXQWHU DQG SUHVFDOHU UHDFK WKH HQG RI
WKH FRXQW D WLPHU LQWHUUXSW UHTXHVW ,54 7 RU ,54 7 LV JHQHUDWHG
7KH FRXQWHUV DUH SURJUDPPHG WR 67$57 6723 UHVWDUW WR &217,18( RU UHVWDUW IURP
WKH LQLWLDO YDOXH 7KH FRXQWHUV FDQ DOVR EH SURJUDPPHG WR 6723 XSRQ UHDFKLQJ  6,1
*/(3$66 PRGH RU WR DXWRPDWLFDOO\ UHORDG WKH LQLWLDO YDOXH DQG FRQWLQXH FRXQWLQJ
02'8/2±1 &217,18286 PRGH
7KH FRXQWHUV EXW QRW WKH SUHVFDOHUV DUH UHDG DW DQ\ WLPH ZLWKRXW GLVWXUELQJ WKHLU YDOXH RU
FRXQW PRGH 5HDGLQJ WKH SUHVFDOHUV UHWXUQV WKH YDOXH FFh 7KH FORFN VRXUFH IRU 7 LV
XVHUGHILQDEOH DQG LV HLWKHU WKH LQWHUQDO PLFUR FRQWUROOHU FORFN GLYLGHE\IRXU RU DQ H[WHU
QDO VLJQDO LQSXW WKURXJK 3RUW  7KH PD[LPXP IUHTXHQF\ RI WKH H[WHUQDO WLPHU VLJQDO LV WKH
;7$/ FORFN VLJQDO GLYLGHG E\  7KH 7LPHU 0RGH 5HJLVWHU FRQILJXUHV WKH H[WHUQDO WLPHU
LQSXW 3 DV DQ H[WHUQDO FORFN D WULJJHU LQSXW WKDW LV UHWULJJHUDEOH RU QRQUHWULJJHUDEOH RU
DV D JDWH LQSXW IRU WKH LQWHUQDO FORFN 3RUW  OLQH 3 DOVR VHUYHV DV DQ RXWSXW 7 
PVU
WKURXJK ZKLFK 7 7 RU WKH LQWHUQDO FORFN LV RXWSXW 7KH FRXQWHUWLPHUV DUH FDVFDGHG E\
FRQQHFWLQJ WKH 7 RXWSXW WR WKH LQSXW RI 7
36
)XQFWLRQDO 'HVFULSWLRQ