NVC Series Voice Chip
● Simple and convenient one-line MCU serial port and two-line MCU control mode, the user's main control MCU can control thetrigger playback and stop of any segment of voice;
● A set of built-in PWM output device can directly push 0.5W speakers, support 13bit DAC output, and external analog power amplifier;
● Support 8-level volume adjustment, support loop playback and other functions;
● 220 segments of speech can be loaded;;
● Built-in LVR self-reset circuit to ensure the normal operation of the IC;
● Support 4-chord MIDI playback, the sound quality is very beautiful;
● The peripheral circuit is simple, only one coupling capacitor is needed;
● Rich IO ports, built-in MCU, can customize various special functions;

Choose More Voice Chips For Your Projects

Part Number   Voltage range     Quiescent currentVoice LengthSampling RangeAudio OutputPackage model
NV020C   2.4V-5.5V                          2uA   20s(6K)     6K-44.1KDAC/PWM   SOP8/DIP8
NV040C   2.4V-5.5V                          2uA   40s(6K)     6K-44.1KDAC/PWM   SOP8
NV080C   2.4V-5.5V                          2uA   80s(6K)     6K-44.1KDAC/PWM   SOP8
NV180C   2.4V-5.5V                          2uA  180s(6K)     6K-44.1KDAC/PWM   SOP8

NVC Series Voice Chip


● Working voltage: DC 2.4 ~ 5.5V

● Stand-by power consumption: <2uA

● Audio Output: DAC/PWM

● Interface: pulse counting, one-line/two-line serial port

● Volume: support 8 level volume adjustment function

● 220 segments of speech can be loaded

● support multiply segments playing simultaneously

● support customizing functions


● Interface: pulse counting, one-line/two-line serial port

● Size: 4.9 x 6.0 x 1.75 mm

● Capacity: 20S/40S/80S/180S

● Voltage: DC 2.4 – 5.5 V

● Working Temperature: -20 to + 75 °C

Chips Package



● Recordable greetingi cards, telephone exchanges,  recording machine cores, security equipment, toys, etc.

NVC series voice IC is the latest industrial-grade OTP voice IC suitable for factory mass production. It is the 8-pin voice IC with the best sound quality on the market, and supports a maximum sampling rate of 44100.

NVC series voice ICs have a variety of key triggering methods, and can output various forms of level signals, and can be set to change according to the ups and downs of the voice. In addition, NVC supports one-line serial port control of the main control MCU, and can control multiple voice triggers at will. It is the only voice IC on the market that supports 220 voices with an 8-pin IC. NVC series voice IC supports DAC external power amplifier, supports playing beautiful chord MIDI music.

NVC series voice ICs have a variety of practical packaging forms: DIP8, SOP8, SSOP20, COB, etc. The peripheral circuit only needs one power coupling capacitor, stable operation, wide operating voltage, ultra-low standby power consumption and wide temperature resistance The performance makes the NVC series voice ICs have a first-class cost-effective advantage in a wide range of applications.

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