WTV series voice chip is a powerful one-time programmable voice chip. When the voice is 6K sampling frequency, the storage length can reach 40 seconds, 80 seconds, 170 seconds and 340 seconds respectively. The audio output is PWM or DAC mode. Optional control modes include button control mode, button combination control mode, parallel control mode, serial control mode, etc. The trigger mode of button control mode is flexible; in serial mode, the volume, open or close power amplifier, and circular playback and stop function can be controlled. It can be applied in automobile anti-theft alarm, reversing radar, GPS navigation, intelligent home system, home anti-theft alarm, medical equipment human voice prompt, entertainment equipment (game machine, amusement machine), learning model (early education machine, children's audio books), intelligent transportation equipment (toll station, parking lot) communication equipment (telephone exchange machine, telephone), industrial control field (elevator, industrial equipment) and other fields.
The manual introduces the WTV series voice chips, a family of one‑time programmable (OTP) voice ICs with selectable PWM or DAC audio output. It details the available control methods – key, key‑combination, parallel, and various serial interfaces – and explains how to configure them using the provided PC software.
Additional sections describe the electrical characteristics, package options, power‑saving modes, and example application circuits for both key‑control and parallel‑control configurations. The document also includes a separate section for the WT588D voice microcontroller, highlighting its extended features and specifications. This manual is written in Chinese.
| Operating voltage | DC 2.5 V – 3.5 V |
|---|---|
| Audio output | PWM or 16‑bit DAC |
| Built‑in DAC | 16‑bit |
| Power‑save current | 2 µA |
| Sleep current | < 10 µA |
| Package types | DIP16, SOP16, SSOP20, QFP44 |
| Maximum voice segments | 500 segments (WT588D) |
The chips support key control, key‑combination control, parallel (port) control, one‑wire, two‑wire, and three‑wire serial control modes.
During voice playback the BUSY pin can be set to output either a high or low level, allowing it to be used as a playback‑status indicator.
Yes, the chip includes a 0.5 W direct‑drive speaker output, eliminating the need for external amplification circuitry.
In parallel‑control mode up to 128 voice segments can be addressed and played.