WTV380-P Voice Chip | Programmable Voice Playback IC | Waytronic
QFN32 Voice Chip with 380s Built‑in Voice, Rich I/O & 1‑Wire/2‑Wire Control
The WTV380-P is a QFN32 voice chip featuring a 32‑bit processor up to 120MHz with 380 seconds of built‑in voice storage and 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 ideal for advanced voice systems, industrial equipment, and automotive applications.
- 380s built‑in voice – flexible storage
- 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
WTV380-P Key Features
Specifications
| Parameter | Value |
|---|---|
| Package | QFN32 (4×4mm) |
| Operating Voltage | 2.6V – 5.0V |
| Built‑in Voice | 380 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 |
WTV380-P Applications
Frequently Asked Questions
What control modes does WTV380-P support?
WTV380-P MP3 Voice Playback Chip is 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?
WTV380-P provides 380 seconds of built-in voice storage.
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?
Voice prompt systems, home appliances, automotive electronics, toys, industrial alarms, consumer electronics, and any application requiring compact voice playback with flexible control.
Important: QFN32 package operates at 2.6–5.0V with 32 pins for rich I/O expansion. Control mode is fixed during programming – specify function code when ordering. Deep sleep requires wake‑up sequence. External Flash: Waytronic‑branded recommended. PAD (pin 0) must be grounded.
