MSM66P54 Datasheet, PDF (1/22 Pages) OKI electronic componets – One-Time Programmable (OTP) Speech Synthesizer

MSM66P54
One-Time Programmable (OTP) Speech Synthesizer
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.
When compared to the mask-programmed MSM6654 version, the SOP-packaged version of the
MSM66P54 is backwards compatible, while the DIP-packaged version has two extra pins for program-
ming. On the DIP version, programming pins can either be cut off or left open after programming. DIP
pin spacing and location allows insertion of the MSM66P54 into an IC socket intended for the MSM6654.
To provide high-quality speech synthesis, all members of the MSM6650 family members implement
adaptive differential pulse-code modulation (ADPCM) playback, pulse-code modulation (PCM) play-
back, 12-bit D/A conversion, and an on-chip -40dB/octave low-pass filter (LPF). In addition, easy-to-use
“beep” tones, a two-channel mixing function, a melody function, a fade-out function, and a random play-
back function are included. Also, an on-chip edit ROM can form sentences by catenating phrases, making
external control simpler than before.
Four code versions of the MSM66P54 are available. Stand-alone or microcomputer (MCU) interface
modes can be selected by using one of the four available codes. The table below shows the code versions
available.
MSM66P54 Code Versions
Part No.
MSM66P54-01
MSM66P54-02
MSM66P54-03
MSM66P54-04
OTP ROM
1 Mbit
1 Mbit
1 Mbit
1 Mbit
Mode
MCU Interface Mode
MCU Interface Mode
Standalone Mode
Standalone Mode
Interface/Standby Features
Serial Interface
Parallel Interface
Standby Function
No Standby Function
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
1. 32 kHz is not available when RC oscillation is selected
OKI SEMICONDUCTOR
4-1