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Product Category: IC Chips
Manufacturer: OKI
  datasheetMSM66P54-02 Datasheet
Package: DIP
Quantity: 620 PCS
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Manufacturer: OKI
Product Category: IC Chips
Features, Applications

One-Time Programmable (OTP) Speech Synthesizer DESCRIPTION

The 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 programming. 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) playback, 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 playback 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. MSM66P54-03 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


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 1.0, 1.6, and 2.0 kHz Sampling frequency 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

The table below shows the additional functions available in the MSM6650 family when compared to the family's predecessor, the MSM637x family. Comparison of MSM6376 and MSM6650 Families

MSM6650 Family Control Method Standalone mode Microcomputer mode - parallel input Microcomputer mode - serial input 4-bit ADPCM or 8-bit PCM/Melody PCM or 2.0 kHz (User-specified length of variable duration) Eight frequencies or 32.0 kHz) 256 kHz (RC) / 4.096 MHz (crystal) -40 dB/octave

Speech synthesis method "Beep" tone frequency (length)

4-bit ADPCM or 2.0 kHz, (User-specified length, fixed at either or 500 ms) Three frequencies at two oscillator frequencies or 8.0 kHz with fOSC = 64 kHz; or 32.0 kHz with fOSC = 256 kHz) 40 kHz ~ 256 kHz -24 dB/octave

Sampling frequency (fS) Master clock frequency LPF attenuation factor LPF cut-off Frequency (fCUT), kHz Maximum phrase number Pull-up/pull-down resistors Standby conversion time Maximum external ROM

127 (in MCU Interface Mode) Built ms 64 Mbit Fade-out Random playback Melody playback PCM playback Serial input control

Data ROM Capacity [1] 64 Mbits [2] 288 Kbit 544 Kbit 1 Mbit 1 Mbit 1.5 Mbit 2 Mbit

[1] Actual ROM area MSM6654, MSM6655, and MSM6656 is smaller by 22 Kbits. [2] Via external ROM only (no on-chip ROM available). [3] OTP version.

Search Part number : "MSM66" Included word is 15
Part Number Manufacturer Package Quantity Description
MSM6636 OKI SOP24 2850
MSM6654A-542GS-KR1 OKI SOP24 1330
MSM66577-018T OKI TQFP 1129
MSM6636B OKI SOP 2830
MSM6654A-562GS-KR1-7 OKI SOP24 4060
MSM66577-020TB OKI TQFP100 962
MSM6636BG3 OKI SOP24 2160
MSM6654A-582 PANASONIC SOP24 531
MSM66589-149GS-BK-G2 OKI QFP 2104
MSM66Q577-TB OKI QFP 157
MSM6636BGS-K OKI SMD24 148
MSM6654A-600GS-KR1 OKI SOP 7060
MSM6658A-804 OKI SO24L 3995
  • MSM6636
  • MSM6654A-542GS-KR1
  • MSM66577-018T
  • MSM66Q573L-NTB
  • MSM6636B
  • MSM6654A-562GS-KR1-7
  • MSM66577-020TB
  • MSM66Q573LY-NTB
  • MSM6636BG3
  • MSM6654A-582
  • MSM66589-149GS-BK-G2
  • MSM66Q577-TB
  • MSM6636BGS-K
  • MSM6654A-600GS-KR1
  • MSM6658A-804
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