WTV890-P Voice Chip | Programmable Voice Playback IC | Waytronic
QFN32 Voice Chip with 890s Built‑in Voice, Rich I/O & 1‑Wire/2‑Wire Control
The WTV890-P is the flagship QFN32 voice chip featuring a 32‑bit processor up to 120MHz with the largest built‑in voice storage in the WTV series – 890 seconds – combined with rich I/O expansion for complex applications. It supports 1‑wire and 2‑wire serial control (single or double‑byte modes), 16‑level volume control, and a built‑in 0.5W Class‑D amplifier. With wide voltage range (2.6–5.0V) and deep sleep under 3µA, it is the ultimate choice for advanced voice systems requiring maximum storage and flexibility.
- 890s built‑in voice – largest capacity
- QFN32 package – rich I/O expansion
- 2.6–5.0V – wide voltage operation
- 16‑level volume – E0H–EFH
- Built‑in 0.5W amp – direct speaker drive
WTV890-P Key Features
Specifications
| Parameter | Value |
|---|---|
| Package | QFN32 (4×4mm) |
| Operating Voltage | 2.6V – 5.0V |
| Built‑in Voice | 890 seconds |
| Audio Format | MP3 (8–320kbps) |
| Audio Output | PWM (0.5W) / DAC |
| Volume Levels | 16 (E0H–EFH) |
| Address Range (Single) | 224 (00H–DFH) |
| Address Range (Double) | 65000+ (0000H–03E7H+) |
| Deep Sleep | < 3 µA |
| Normal Sleep | < 30 µA |
| Operating Temp | ‑40°C ~ +85°C |
Key Pin Functions (QFN32)
| Pin | Name | Function |
|---|---|---|
| 8,9 | VCC | Power (2.6–5.0V) |
| 10 | PWM+ | Speaker positive |
| 11 | PWM− | Speaker negative |
| 13 | BUSY | Busy signal output |
| 19 | DATA1 / CLK2 | 1‑wire data / 2‑wire clock |
| 20 | DATA2 | 2‑wire data input |
| 21 | ONEKEY | Next‑track button (low active) |
| 0 (PAD) | GND | Internal ground, must connect |
Applications
Frequently Asked Questions
What control modes does WTV890-P support?
It supports 1-wire serial and 2-wire serial control, available in both single-byte (A05/A07) and double-byte (A15/A17) modes.
What is the difference between single-byte and double-byte modes?
Single-byte mode supports up to 224 voice addresses (00H–DFH). Double-byte mode supports up to 65,000+ voice addresses (0000H–03E7H and beyond).
What is the built-in voice storage capacity?
WTV890-P provides 890 seconds of built-in voice storage – the highest capacity in the WTV series.
What is the power consumption in sleep mode?
Deep sleep consumes less than 3µA. Normal sleep (default) consumes less than 30µA. The chip enters normal sleep 5 seconds after power-on without playback.
Does it have a built-in amplifier?
Yes. It features a built-in 0.5W Class-D amplifier that can directly drive an 8Ω speaker via PWM output.
How many volume levels are available?
16 levels (E0H–EFH). Volume does not have power-off memory and defaults to EFH on power-up.
What is the operating voltage of the QFN32 package?
The QFN32 package operates from 2.6V to 5.0V.
What audio formats are supported?
It supports MP3 format with bitrates from 8kbps to 320kbps.
What is the ONEKEY pin for?
The ONEKEY pin provides a built-in next-track function. Pull it low to play the next voice segment – ideal for quick testing without MCU control.
What are the typical applications?
Advanced voice prompt systems, home appliances, automotive electronics, industrial controls, toys, consumer electronics, and any application requiring maximum voice capacity and I/O flexibility.
Important: QFN32 package operates at 2.6–5.0V with 32 pins for rich I/O expansion. With 890 seconds of built‑in voice, this is the highest‑capacity option in the WTV series. Control mode is fixed during programming – specify function code when ordering. Deep sleep requires wake‑up sequence. PAD (pin 0) must be grounded.
