?綯????????????·???ù???????SSR,?????·,???4???.?????TTL???,????????????.??P1.4???????????1???,????????SSR???,??????綯?????????;???,???P1.4?????????(??0??),??SSR???,?????綯???????????.??????·?????????.??????????????,??4?????????????QS1??QS4??????????????綯???????·(????????????????·
????????????????????????????????黯??,?????????????????????????????,????????????????д???????,???????????????.??????????????,?????????????,???????????г????,???????ж?????????????????;?????????ж???????,??????????????????????
?????綯??????????? ???????????????????????????????к???????????????????????????????飬???????????·???????????????????????????????????????????????????н??????????????????????????????????????????????????????н??????????????????Σ??綯?????λ????????????????????????????????????????????????????
????????
?????????????е??????????