PowerSpeech™ Family

W584Axxx is a 4-bit microcontroller-based speech synthesizer with PWM mode output to drive the speaker directly. The synthesizer contains one voice-channel and dual-tone melody. With Ultra_IO ^TM , W584Axxx can simplify the procedure of defining the output pattern. W584Axxx operates over a wide voltage range from 2.2V – 5.5V and includes a Low Voltage Reset function which automatically resets when the working voltage is less then 1.9V.

• Wide operating voltage range: 2.2 ~ 5.5 volts
• System clock
  • 4 MHz at 2.2 ~ 5.5 volts
  • 8 MHz at 3.0 ~ 5.5 volts
• H/W speech synthesis
  • 1 voice channel, dual-tone melody
  • 5-bit MDPCM
  • Programmable sample rate
• Built in a PWM Direct Drive circuit and a fixed current type DAC output to drive speaker
• Provides power management to save current consumption
  • 4 / 8 MHz system clock, with Ring type oscillator
  • Stop mode for stopping all IC operations
• Provides two 4-bit I/O ports
• Provides 128*4 bits RAM
• Provides 16K*10 for program data
• Provides IR carrier generation
• Provides Watch Dog Timer (WDT)
• Provides Low Voltage Reset (LVR)
• Shares ROM for voice and program storage
• Supports PowerScript^TM for developing codes easily
• Full-fledged development system
  • Source-level ICE debugger (PowerScript^TM format)
  • Event synchronization mechanism
  • User-friendly GUI environment
  • With Ultra_IO^TM to simplify the defined output patter