7 led musical flasher W VH7 ------------------------------------------------------------------------------------------------- ------------------------------ ---- 1 . 0 f e a t u r e s c w i de range power supply (2 -5v) ? (2 -5v) no external com ponent is needed o low standby current; < 1ua at v dd = 3.0v oB ; < 1ua at v dd = 3.0v leds accom p anied with sound rotates at every trigger and ?|l , leds SW , only one led is on at last ?? led a m u sical song will be heard when a lucky led is on at last ?\ led , l piezo buzzer is directly driven ???Q? 2.0 electrical characteristics v dd = 3v, t a = 25 0 c (unless otherwise specified ?e] ) limits p a r a m e t e r s y m b o l m i n t y p m a x unit operating voltage ? v dd 2 3 5 v o l t standby current oB i st - 1 1 0 u a led sink current led M i led 0 . 5 - - m a 3.0 application information Y v dd ( 3 ? 5v ) l5 l6 l1 l7 l3 l2 l4 out v dd outb test 2 test 1 v ss sw 10 9 4 13 12 6 5 14 11 7 8 3 2 1 the ic subst r at e shoul d be connect ed t o v dd . ?r?v dd
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