Nyquest Technology Corporation Limited

LED Control & Drive IC  
Speech IC 
Multi-Channel Speech/Melody IC 
Home Appliances 
8-bit MCU with LCD Driver 
Accessory ASIC 
32-bit MCU 
NY OTP List 
Development Tool 

Nyquest provide good quality and efficiency OTP ICs that have complete and total solutions for all series of Nyquest products.


Home > Product Detail > Speech IC > NY4 Series > NY4 Series
NY4 Series

By using the high fidelity ADPCM speech synthesis algorithm and a built-in noise filter, NY4 can produce outstanding quality voices. Wide range sampling rate up to 44.1kHz is supported. The RISC MCU architecture is very easy to program and control, various applications can be easily implemented. There are 44 instructions, and most of them are executed in single cycle. Furthermore, a HALT mode (sleep mode) is designed to minimize power dissipation. Through +/-1% accurate internal oscillation, external Rosc is unnecessary.

  • Wide operating voltage range: 2.0V to 5.5V
  • 4-bit RISC type micro-controller with 44 instructions
  • The ROM size is 256Kx10-bit, voice duration is [email protected]
  • 96x4-bit RAM, divided into 2 pages
  • 1MHz instruction frequency
  • HALT mode to save power, less than 1uA standby current
  • Precisely embedded oscillator with build-in resistor Rosc (+/- 1%)
  • Low voltage reset (LVR=1.8V), watch-dog reset and I/O port reset are all supported to protect the system
  • Maximum 8 flexible I/Os with optional function
  • Infrared output
  • New high fidelity ADPCM speech synthesis algorithm
  • Built-in noise filter for less background noise at lower volume especially
  • One 9-bit hardware PWM output
  • Support large PWM current output (Only for NY4B series)
  • Mute mode speech algorithm to save ROM size
  • Quick-IO control supported
  • Various shipping type for different application requirement
Nyquest Technology Co., Ltd. Address: 7F-1, No.81, Shuili Road, Hsinchu City 30059, Taiwan, R.O.C. Tel: +886-3-516 9077 Fax: +886-3-516 9076
?2010 Copyright   Nyquest Technology Co., Ltd., All Rights Reserved. Best Viewed at 1280 x 1024 Microsoft Internet Explorer 8 Last updated: 2019/06/10