WTV serial voice chips includs WTV010,WTV020,WTV040,WTV080,WTV170,WTV340,ect.With a large number of unit circuits, strong programmable capability,it not only plays voice but also play music with MIDI format.It can achieve standard control modes and also can be customized.If you would like to make product flexibility,multifunctional and high-quality, it should be your choice. WTV series voice chips is one of the most cost-effective solution, Moreover, can replace ISD voice chips in some cases. WTV40-OTP voice chip,musical ic,sound ic Features: *OTP (one time programmable) voice chips *Support sampling rate from 6KHz to 32KHz, 40S durations at 6KHz. *Support WAV and MIDI audio format. *Built-in 16 bits DAC and PSG (Programmable Sound Generator) for audio with high quality. *Optional PWM and DAC audio output *Mute will not take up any memory space. *Same messages can be re-used for saving memory size. *Control modes: key control, key combination control, parallel control, serial control. *BUSY pin can be setted to high or low level according to demand. *Built-in direct-drive of speaker (0.5w),no need any other device. *Operating voltage: DC 2.5V to 3.6V *During power-down, the electricity consumption is low as 2uA , one second after stopping working or without any action after electrify chip, it will be sleep automatically. *Powerful programmability, can be customized according to the requirements of customers *Offer chip program services for customers. *Equip with PC software and programmer,customers can program by themselves. Applications: It can be used in various fields,such as toys,electronic organ,learning machine for kids,security equipment,intelligent electrical appliances,health care and physical therapy product,instrumentations and all kinds of automatic control system and so on.