- 1 - ?? ??? AM1628 ??????????? led ?1a?t??1???????y???????a?? 2??3e mcu y????y?y????? led ???1?y???????a??2?e??? ?????????a|? vcr ? vcd ? dvd ???o?2???????y??2? sop28 ?ae??? ?t? ?e??? ? 2?1|a cmos 1R? ? ?????????? 10 ??? 7 ?? ?? 13 ??? 4 ??? ? ??? 8 ? 2bit ? ? ??????a????? 8 ?????? ? ?ee??? clk ? stb ? din ? dout ? ? ??????o??? rc ???? 450khz+ 5% ? ? ?????????a ? ae??o sop28 y?1????o ???1??1|???o led ?y???????a AM1628 for evaluation only. copyright (c) by foxit software company, 2004 edited by foxit pdf editor
- 2 - ?o? 1????3? ?? din y?y?? ???y?????eey?y??????a? dout y?y?3? ???a????3??eey?yz??????a????3? ?a n-ch open drain stb ???? ??y??a???3????ee?????o?y???? ?? stb ?a?o????????a?????|?? ?? ?????|????1? ? stb ?a??? clk ? o?a? clk ??? ??y?????eey?y??a????3?y?y k1 ?? k2 ?y?y?? ???????y?y????????o? ??? seg1/ks1 ?? seg8/ks8 ?3????? ???3??2???? ,p 1?aa??3? seg9~seg10 ?3????? ???3?? p 1?aa??3? grid1 ?? grid2 ?3????? ???3?? n 1?aa??3? grid3 ?? grid4 ?3????? ???3?? n 1?aa??3? seg12/grid7 ?? seg14/grid5 ?3???? / ??? ?? / ??????3? vdd a??-?? 5v ? 10% vss a??-? ???3? nc -- ?e????? ??? ???2?yo ???t2?y? ta = 25 ?? , vss = 0 v ?
- 3 - 2?y ?o? ?? ??? a??-????1 vdd -0.5 ?? +7.0 v a??-????1 vi1 -0.5 ?? vdd + 0.5 v led seg ?y??3?? io1 -50 ma led grid ?y??3?? io2 +200 ma 1|a?eo? pd 400 mw 1?a? topt -40 ?? +80 ?? ??a? tstg -65 ?? +150 ?? ?y31???? ta = -20 ?? +70 ??? vss = 0 v ? 2?y ?o? ?e? ?e ?? ??? 2a? ??t a??-????1 vdd 5 v - ?????????1 vih 0.7 vdd - vdd v - ????????1 vil 0 - 0.3 vdd v - ????e?? ta = -20 ?? +70 ??? vdd = 4.5 ?? 5.5 v ? vss = 0 v 2?y ?o? ?e? ?e ?? ??? 2a???t ioh1 -20 -25 -40 ma seg1~seg11 ? vo = vdd-2v ??????3?? ioh2 -20 -30 -50 ma seg1~seg11 ? vo = vdd-3v ?????3?? iol1 80 140 - ma grid1~grid6 vo=0.3v ?????3?? idout 4 - - ma vo = 0.4v ? dout ??????3??y itolsg - - 5 % vo = vdd c 3v ?
- 4 - e? seg1 ?? seg11 ?3??a-? rl 10 k |? k1~k3 ??? ii - - ? 1 | a vi = vdd / vss ?????????1 vih 0.7 vdd - v clk ? din ? stb ????????1 vil - - 0.3 vdd v clk ? din ? stb ?o??1 vh - 0.35 - v clk ? din ? stb ????eo? idddyn - - 5 ma ?t?o??????1? ?a1??e?? ta = -20 ?? +70 ??? vdd = 4.5 ?? 5.5 v ? 2?y ?o? ?e? ?e ?? ??? 2a???t ????a fosc - 500 - khz r = 16.5 k |? tplz - - 300 ns clk ? dout ???3?? tpzl - - 100 ns cl = 15pf, rl = 10k |? ttzh 1 - - 2 | s seg1 ?? seg11 ?y?? ttzh 2 - - 0.5 | s cl = 300p f grid1 ?? grid4 seg12/grid7 ?? seg14/grid5 ?a???? tthz - - 120 | s cl = 300pf ? segn ? gridn ????a fmax 1 - - mhz ???? 50% ???y ci - - 15 pf - * e?e?? ta = -20 ?? +70 ??? vdd = 4.5 ?? 5.5 v ?
- 5 - 2?y ?o? ?e? ?e ?? ??? 2a???t ?a?3??? pwclk 400 - - ns - ??a?3??? pwstb 1 - - | s- y?y??? tsetup 100 - - ns - y?y3??? thold 100 - - ns - clk ? stb ?? tclk stb 1 - - | sclk ?? stb ? ?y?? twait 1 - - | sclk ?? clk ?y e2e??o ? ic a??a?o
- 6 - z all specs and applications shown above subject to change without prior notice. ( ???a?1?????1?2??? , ??1?????eeet?y???2?ee?a? )
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