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Speech Synthesis LSI

Lineups

The ML227xx and ML228xx series of speech synthesis LSIs integrate LAPIS Semiconductor's unique P2ROM™.
After assembly the products are stored until designated for customer shipment, at which time the sound data is written. This process reduces sample creation and mass product TAT.
A large capacity ROM (2Mbit to 16Mbit) is integrated, ideal for applications requiring long playback times.
Both the ML223xx and ML2256x series are equipped with small to medium capacity Flash ROM/Mask ROM (920Kbit-4Mbit).
Each series is available in both Flash and Mask ROM types and are fully pin-compatible.
This makes it possible to develop using Flash ROM, then switch to Mask ROM for mass production.
These products are voice sound playback LSI with small size and low power, and functions necessary for voice output, such as oscillator, amplifier and etc., are all integrated into a single chip.
It is ideal for the voice message playback simply and easily.

The ML2257x series integrate 4ch mixing and a speaker amp. as well as guarantee operation at +105°C.
In addition, a number of fail safe functions ideal for automotives are
built-in, including LSI temperature monitoring, supply voltage drop detection, CPU command error detection, and an over-current shutdown circuit. Both Mask ROM and Flash ROM models are offered,
fully compatible with one another.
If you want to play more sound,
the external memory compatible
speech synthesis LSI series is the best option for you.
A serial memory of up to 128Mbit can be connected externally.
  • Speech Synthesis LSI Overview
  • Lineups
  • Test Play of Speech Samples
  • Basic Knowledge of Speech Data
  • Sound Data Creation Support Flow
  • Sound Device Control Kit
  • Reference board

FAQ


New Products & Topics

ML22Q374/Q394 are voice sound playback LSI ideal for the message playback about 10 to 20 seconds with small size and low current consumption.
Flash ROM for a voice record, oscillator, D class speaker amp. required for a voice sound playback are integrated, and they reduce external parts and package size.


ML22594 is a high-quality speech synthesis LSI with built-in 6Mbits Mask ROM and compatible with up to 128Mbits external memory.
It ensures operation between -40 to +105°C(automotive-grade) with built-in speaker amplifier.
Customers development and stock control can be made easy by using usage which stores a common voice data in built-in ROM, and stores a difference voice extension data based on a product in external ROM.


The ML22Q553 is a high-quality speech LSI with built-in Flash suitable for automobile application.
The LSI, which includes an high-quality HQ-ADPCM decoder, 16-bit DAC, a low-pass filter, a monaural speaker amplifier, incorporates the peripheral components necessary for speech output in a single chip.
The LSI contains a variety of functions including 4-channel simultaneous playback, volume control and edit ROM function for efficient memory usage.


ML22Q321/ML22321 series is speech synthesis LSIs with built-in speaker amplifier.
It has internal Flash memory / MaskROM and can be controlled by event input from serial interface.
The built-in speaker amplifier achieves a solution required for sound reproduction by one chip and high fidelity sound by the integrated 16bit DAC. 62 phrases are provided which are enough for small capacity series.


The ML22Q563/ML2256X Series is a high-quality speech synthesis LSI with built-in Flash/Mask ROM.
The LSI, which includes an high-quality HQ-ADPCM decoder, 16-bit DAC, a low-pass filter, and a monaural speaker amplifier, incorporates the peripheral components necessary for speech output in a single chip.


The ML22Q573/ML2257x series is a high-quality speech synthesis LSI with built-in Mask ROM/Flash memory suitable for automotive applications.
The LSI, which includes a high-quality (HQ-ADPCM) decoder, a 16-bit DAC, a low-pass filter, and a monaural speaker amplifier, incorporates the peripheral components necessary for speech and sound output in a single chip.


ChipPhoto

The ML610340 series is a high performance CMOS 8 bit microcontroller which applied eight bits CPU nX-U8/100 of LAPIS Semiconductor as its core.
Because it can operate in slow mode and low power consumption mode, it is suitable for the application of the battery drive.


ML2272x_pkg_Photo

It is speech synthesis LSI that can reproduce the speech data in the memory while adjusting the speed and the interval.
It enables to playback slowly without changing the pitch and raise/lower the pitch without changing the speed.