NVH Series Voice Chip

● MCU operating frequency: 8.192MHz
● Program ROM size: 16K*12-bit OTP type
● Data ROM size: 512K*8-bit OTP type
● SRAM size: 256*4 bits •User register: 2*4 bits
● WDT period is 256*256*16/Fsys. (For system clock = 8.192MHz, the WDT period is 0.13 seconds)
● Optional to support PWM or DAC mode.
● Support pull-down resistor 1M, 50K or 220K ohm, reset pin (PB3 or PC3), low voltage reset, etc.
● Oscillator fuse option ±3%, temperature and voltage compensated.
● Support read-prohibited security option (1 bit).

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PRODUCT INFORMATION

Choose More Voice Chips For Your Projects

Part Number	Voltage range Quiescent current	Voice Length	Sampling Range	Audio Output	Package model
NV040H	2.0V-5.5V 5uA	40s(6K)	6K-44.1K	DAC/PWM	SOP8
NV170H	2.0V-5.5V 5uA	170s(6K)	6K-44.1K	DAC/PWM	SOP8
NV340H	2.0V-5.5V 5uA	340s(6K)	6K-44.1K	DAC/PWM	SOP8

Features

● Working voltage: DC 2.0 ～ 5.5V

● Stand-by power consumption: <5uA

● Audio Output: DAC/PWM

● Program ROM size: 16K*12-bit OTP type

● Data ROM size: 512K*8-bit OTP type

● SRAM size: 256*4 bits •User register: 2*4 bits

● Reset conditions: Low voltage reset. (LVR = 2.0V)

● Reset conditions: Power-on reset.

● WDT watchdog: Watchdog timer, which can be enabled/disabled by option.

● WDT watchdog: WDT period is 256*256*16/Fsys. (For system clock = 8.192MHz, the WDT period is 0.13 seconds)

● Audio output: Optional to support PWM or DAC mode.

● Audio output: Support 8/10/12 bit.

● Support pull-down resistor 1M, 50K or 220K ohm, reset pin (PB3 or PC3), low voltage reset, etc.

● Oscillator fuse option ±3%, temperature and voltage compensated.

● Support read-prohibited security option (1 bit).

Specification

● Size: 4.9 x 6.0 x 1.75 mm

● Capacity: 40S/170S/340S

● Voltage: DC 2.0 – 5.5 V

● Working Temperature: -20 to + 75 °C

Chips Package

● SOP8

Application

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

NVH series chips is a 4-bit microcontroller, which is an OTP (One Time Programmable) type memory. The PWM resolution is 8/10/12 bits. They include a low cost, high performance CMOS microprocessor. This upward clock frequency is typically 8.192 (±3%) MHz. The chip works in a wide voltage range of 2.0V~5.5V, and it contains Programmable Read Only Memory (PROM) and Data ROM (DROM) in it.