SOUND GENERATOR / LED FLASHER 閃燈聲效芯片 VM45 ----------------------------------------------------------------------------------------------------------------------------------1.0 特點 FEATURES Minimum external components 外接零件少 Wide power supply range (2 – 5V) 工作電壓(2 – 5V) Low standby power consumption 靜態功耗低 Four different sound effect outputs 4 種不同聲效輸出 Five LED drivers available 有 5 個 LED 驅動可供選擇 Auto power-off function 自動關掉功能 2.0 ELECTRICAL CHARACTERISTICS 電特性 Ta = 25o C, VDD = 3V, Fosc = 140kHz PARAMETER (unless otherwise specified 特別註明除外) SYMBOL TEST CONDITIONS LIMITS UNIT MIN TYP MAX Operating Voltage 工作電壓 VDD - 2 3 5 Volt Standby Current 靜態電流 IDD - - - 5 μA Output Current 輸出電流 IO VOL = 0.4V VOH=2.2V 1 - - mA ILED Open Drain Output 40 - - mA LED Sink Current LED 灌進電流 3.0 APPLICATION INFORMATION 應用資料 The IC substrate should be connected to VDD. 芯片襯底請接VDD。