The QFN32 package provides up to 27 I/O ports. These can be used for driving LEDs, reading buttons, controlling motors, and interfacing with sensors such as Hall sensors.
32-bit Processor · 380s / 890s Built-in Voice · QFN32 Package · Ultra-Low Power · Industrial-Grade
| Parameter | WTV380-32N | WTV890-32N |
|---|---|---|
| Image |
View Detail → |
View Detail → |
| Product Position | High-Integration Mid-Range | Flagship Long-Duration |
| Built-in Voice Duration | 380 seconds | 890 seconds |
| Package | QFN32 (4×4mm) | QFN32 (4×4mm) |
| Operating Voltage | 2.0V – 5.5V | 2.0V – 5.5V |
| Processor | 32-bit @ 120MHz | 32-bit @ 120MHz |
| GPIO Count | Up to 27 I/O ports | Up to 27 I/O ports |
| Audio Output | PWM / DAC | PWM / DAC |
| Built-in Amplifier | 0.5W Class D | 0.5W Class D |
| Control Interface | UART / 1-Wire / 2-Wire / Key | UART / 1-Wire / 2-Wire / Key |
| External Flash Support | Up to 128Mbit | Up to 128Mbit |
| Deep Sleep Current | <2μA | <2μA |
| IO Drive Capability | Up to 64mA | Up to 64mA |
| Operating Temperature | -40~+85°C | -40~+85°C |
| Audio Format | MP3 / WAV, 8–320kbps | MP3 / WAV, 8–320kbps |
| Volume Levels | 32-level (UART) / 16-level (serial) | 32-level (UART) / 16-level (serial) |
As high-performance voice playback ICs in a compact QFN32 package, the WTV380-32N and WTV890-32N support UART, one-wire, two-wire, and key control modes with a built-in 0.5W Class D amplifier for direct speaker drive. These voice chips are trusted by engineers worldwide for reliable, clear voice prompts in space-constrained designs:
Voice confirmation, intrusion alerts, message playback. Deep sleep <2µA for battery devices.
Voice alarms, AVAS warnings, status notifications. -40°C~+85°C for harsh environments.
Gas alerts, fault alarms, tank level monitoring. EMC-tested for reliable factory-floor operation.
Operation feedback, voice navigation, completion alerts. Built-in amp drives speaker directly.
Vital signs, massage guidance, health education. Multi-language voice playback.
Mode selection, routine guidance, device status prompts. Compact QFN32 fits small handheld products.
Interactive stories, game sound effects, voice responses. UART / 1-Wire / 2-Wire / Key control.
Entry guidance, announcements, and security alerts. 27 GPIOs for LEDs, sensors, and motors.
Compare these QFN32 voice playback ICs with alternative solutions and see how they deliver high integration, ultra-low power consumption, and flexible control for industrial-grade voice applications.
| Comparison | WTV380-32N / WTV890-32N | Low-Cost OTP Voice IC | General MCU + External Audio | Cloud-Based Voice Solution |
|---|---|---|---|---|
| Core Positioning | High-performance voice playback IC in QFN32 | One-time programmable voice IC | Requires custom audio stack development | Cloud-based TTS playback |
| Voice Storage | 380/890s built-in + external Flash up to 128Mbit | 10–170s (fixed) | External storage dependent | Cloud-dependent, requires network |
| Audio Quality | MP3/WAV decoding, 8–320kbps | ADPCM low bitrate | Software-dependent | Cloud high-quality synthesis |
| Control Methods | UART / 1-Wire / 2-Wire / Key | Pulse / Level trigger | Custom design required | Network API |
| GPIO Count | Up to 27 I/O ports | Limited | MCU-dependent | Limited |
| Power Consumption | Deep sleep <2μA | <2μA | Higher | High (WiFi/LTE required) |
| Package Size | QFN32 4×4mm — compact | Varies | Varies | Varies |
| Development Complexity | Simple serial commands, 1–2 weeks | Extremely simple (fixed function) | Complex (driver development required) | Complex (cloud SDK integration) |
| Per-Unit Cost | One-time chip cost | One-time chip cost | Chip + storage cost | Chip + cloud API fees |
| Key Trade-off | Fixed voice content, requires programming tool | Cannot be modified post-production | Long development cycle, complex BOM | Network-dependent, privacy concerns |
Not sure which voice playback IC fits your project? Pick your application below and get a direct recommendation.
Smart locks · Portable devices · Wearables · Small footprint + multiple I/O needed
Pick WTV380-32N — QFN32 4×4mm ultra-compact package, 27 GPIOs, direct drive for motors/LEDs/Hall sensors, 380 seconds built-in voice
Premium smart locks · Automotive electronics · Industrial HMI · Long-duration voice + high integration
Pick WTV890-32N — 890 seconds built-in voice + QFN32 compact package + 27 GPIOs — flagship-grade configuration
Start with WTV380-32N and upgrade as your voice content grows — no PCB redesign needed
WTV380-32N → WTV890-32N
Same QFN32 pinout, same package, same command architecture — drop-in replacement, minimal firmware changes
Free PC software, programmers, reference designs, EVBs, and video tutorials — everything you need to bring your voice-enabled product to market quickly.
Use Waytronic’s WTV-SR tool or standard audio software to convert audio assets into chip-supported formats and sample rates. Complete voice content production and chip configuration on your PC.
Free with your Waytronic account. Start using it today.
Burner tool · Test board · Reference schematics · Sample code & libraries · Step-by-step video tutorials
All included — no extra cost, no hidden fees.
Both are QFN32 voice playback ICs with identical pinouts, control interfaces, and power characteristics. The only difference is the built-in voice memory:
WTV380-32N = 380 seconds
WTV890-32N = 890 seconds
Choose based on your total audio length requirements. Both share the same 32-bit 120MHz processor, 0.5W Class D amplifier, and UART/1-Wire/2-Wire/Key control interfaces.
Yes. The deep sleep current is <2μA, making it ideal for smart locks, wireless sensors, and portable health monitors that need to run on batteries for years. The chip enters normal sleep mode by default 5 seconds after power-on and can be commanded into deep sleep via UART.
Yes. Both support external SPI-Flash up to 128Mbit. With external Flash, voice capacity can be further expanded beyond 900 seconds for multi-language broadcasts or extended advertisements.
Note: Waytronic-certified Flash models are recommended — other manufacturers’ Flash cannot be guaranteed to work properly.
MP3 and WAV formats, with bit rates from 8kbps to 320kbps. This covers everything from low-bitrate speech to high-quality music playback.
2.0V ~ 5.5V for the QFN32 package. The wide voltage range allows direct use in both 3.3V and 5V systems. I/O logic level is 3.3V — level-shifting circuitry is recommended when interfacing with 5V MCUs.
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