Text to Speech chip for SpeakJet - TTS256

SKU: COM-09811 Brand: Sparkfun

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This product has been retired. It is no longer available, but this page has been kept for reference.

The TTS256 is an 8-bit microprocessor programmed with letter-to-sound rules. This built-in algorithm allows for the automatic real-time translation of English ASCII characters into allophone addresses compatible with the Magnevation SpeakJet Speech Synthesizer IC. Combine this with the SpeakJet to build a complete text-to-speech solution.

The TTS256 is offered in a through-hole, 28-pin package. Supplied power should be 5V. Very few connections are required for operation:

	Pin#
5	TX (sends serial data to host)
14	Vss (ground)
18	RX (received serial data from host)	15	Buffer Half Full
20	Ready	10	RX
24	SJ_TX
28	Vdd ( 5V)

The TTS256 contains over 600 rules for pronouncing English text. While it does a pretty good job of the task, with a less than 5% error rate in most sentences, it will mispronounce some words. Often times, some creative spelling will help.

Features:

Narrow 28-pin DIP
Companion chip to Magnevation SpeakJet and Savage Innovations SpeakGin
Built in 600 Rule database
9600bps (8-N-1) serial interface (non-inverted TTL level)
Generates speech codes from ASCII text
Compatible with Arduino, Basic Stamp, OOPic, Pic, and any processor with serial output

Documents:

Datasheet (note: The correct character to append to the end of text is 0x0D and not 0x0A as listed)
Tutorial (Adding the TTS256 to the SparkFun VoiceBox Shield)

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Retired

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