The ML2233x series, which include built-in mask ROM/Flash memories and speaker amplifier, are speech synthesis LSIs that can perform control in serial interface. By using the serial interface, speech playback can be easily performed simply by connecting the LSI to the existing system. The LSI enables easily control of the peripheral circuits such as LED drive and relay ON/OFF with using the existing microcontroller, as well as speech playback. Speech playback of 30 patterns and sequence output are possible. This enables a system to be easily configured by using the logic output of the existing system for the input signals.
For the Flash memory, the customer can write speech data on the customer side by using LAPIS Semiconductor’s dedicated tool.
|Maximum Playback Time(s) (Fsam=8.0kHz)|
|Speech synthesis method||4bit ADPCM2, HQ-ADPCM, 8bit PCM,
16bit straight PCM
(Can be specified for each phrase.)
|Memory type||Flash memory||Mask ROM|
|Speech ROM capacity||896Kbit|
|6.4, 8.0, 10.7, 12.8, 16.0, 21.3, 25.6, 32.0 kHz
(Each phrase can be specified.)
|Playback time fs=8kHz||35 seconds?(HQ-ADPCM)|
|Analog output||Built-in 16-bit D/A converter|
|Maximum event count||30 events|
|SEQ patterns||26 patterns|
|Operating power supply voltage||+2.2 to +5.5V|
|Operating temperature range||-40°C to +85°C|
|Flash memory rewrite cycles||80 cycles||-|
|Package||30pin plastic SSOP|
*HQ-ADPCM is a high sound quality audio compression technology of "Ky's".
"Ky's" is a registered trademark of National University Corporate Kyushu Institute of Technology.