MC88A

一華半導體股份有限公司 MOSDESIGN SEMICONDUCTOR CORP. TAIPEI : TEL : FAX : H.K. : TEL : FAX : 886-2- 22783733 886-2- 22783633 852- 27569109 852- 27566961 MELODY 8 TUNES 8 KEY WITH SCAN KEY 功能叙述 FEATURES 功能叙述 • SCAN KEY：Scan from K1~K8. • Direct drive speaker and buzzer. 8 键 8 首歌 IC MC88A .. .. .. KEY K1 K2 K3 K4 K5 K6 K7 K8 K9 MC88A WEDDING MARCH HAPPY BIRTHDAY JINGLE BELL 1 JINGLE BELL 2 LONDON BRIDGE CHILDREN SONG 1 CHILDREN SONG 2 CHILDREN SONG 3 SCAN 产品应用 APPLICATION 产品应用 • Toys, Key chain etc. 电气规格 ELECTRICAL CHARACTERISTICS 电气规格 Characteristics 工作电压 Operating Voltage 工作电流 Operating Current 静态电流 Quiescent Current 推动电流 BZ Driving Current 推动电流 LO Driving Current 振荡频率 Oscillator Frequency 工作温度 Operating Temperature Sym. VDD IOP ISB IO IOL FOSC Temp. Min. ─ ─ ─ 1 6 ─ 0 Typ. 3 0.1 1 ─ ─ 50 25 Max. 3.5 0.5 5 ─ ─ ─ 60 ( @VDD=3V unless otherwise specified ) Unit V mA μA mA mA KHz ℃ No load @ VDS=1V @ VDS=1.2V External±30%, Rosc=390KΩ REMARKS 参考电路图 APPLICATION DIAGRAM 参考电路图 VDD LO VSS MC88AP LH LO VDD BZ Y BZ Rosc BB X SCAN K8 K7 K6 K5 SCAN K8 K7 K6 K5 K4 K3 K2 K1 9 10 Y X K1 K2 K3 K4 1 18 VSS LH BUZZER BB 1.56 X 1.70 mm2 底=VDD MC88A *All specs and applications shown above subject to change without prior notice. ( 以上电路及规格仅供参考,本公司得径行修正 ) 1/1 2005-02-18