DESCRIPTION
The MSM66P54 is a one-time-programmable (OTP) version of the MSM6654 speech synthesizer, suitable for evaluation of the MSM6650 family and code development. This part is also suitable for applications requiring small quantities and/or short-term delivery after code completion. The PC-based AR76-202 Speech Development System is used for speech encoding, editing, and programming of the MSM66P54.

FEATURES
• Single-chip synthesizer
• 4-bit ADPCM or 8-bit PCM sound playback
• Melody function
• Edit ROM function
• Built-in two-channel mixing function
• Internal random playback function
• Fade-out function
• Built-in “beep” tones at 0.5, 1.0, 1.6, and 2.0 kHz
• Sampling frequency of 4.0, 5.3, 6.4, 8.0, 10.6, 12.8, 16, or 32 kHz[1]
• Up to 127 phrases
• Internal 12-bit D/A converter
• Internal -40 dB/octave low-pass filter (LPF)
• Built-in standby function
• Selectable RC oscillation or ceramic/crystal oscillation
• Package options include 20-pin DIP (DIP20-P-300), 24-pin SOP (SOP24-P-430-2K), or die