MC88A MOSDESIGN | Alldatasheet
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8 TUNES 8 KEY
WITH SCAN KEY 8 鍵 8 首歌 IC 1/1 2005-01-25 MELODY MC88A TAIPEI : TEL : 886-2- 22783733 FAX : 886-2- 22783633 H.K. : TEL : 852- 27569109 FAX : 852- 27566961 一華半導體股份有限公司 MOSDESIGN SEMICONDUCTOR CORP. FEATURES 功能敘述 ‧ SCAN KEY：Scan from K1~K8 . ‧ Direct drive speaker and buzzer. APPLICATION 產品應用 ‧ Toys, Key chain etc . ELECTRICAL CHARACTERISTICS 電氣規格 ( @VDD=3V unless otherwise specified ) Characteristics Sym. Min. Typ. Max. Unit REMARKS 工作電壓 Operating Voltage VDD ─ 3 3.5 V 工作電流 Operating Current IOP ─ 0.1 0.5 mA No load 靜態電流 Quiescent Current ISB ─ 1 5 μA 推動電流 BZ Driving Current IO 1 ─ ─ mA @ VDS=1V 推動電流 LO Driving Current IOL 6 ─ ─ mA @ VDS=1.2V 振盪頻率 Oscillator Frequency FOSC ─ 50 ─ KHz External±30%, Rosc=390KΩ 工作溫度 Operating Temperature Temp. 0 25 60 ℃ APPLICATION DIAGRAM 參考電路圖 *All specs and applications shown above subject to change without prior notice. ( 以上電路及規格僅供參考 ,本公司得逕行修正 ) KEY MC88A K1 WEDDING MARCH K2 HAPPY BIRTHDAY K3 JINGLE BELL 1 K4 JINGLE BELL 2 K5 LONDON BRIDGE K6 CHILDREN SONG 1 K7 CHILDREN SONG 2 K8 CHILDREN SONG 3 K9 SCAN MC88AP LO VDD BZ BB X LH VSS Y SCAN 1 18 9 10 LH Rosc Y X VDD LO BZ BB MC88A 1.56 X 1.70 mm2 底=VDD BUZZER K2K3K4K5K6K7K8SCAN VSS