1.Main Applications of eMMC in Smart Speakers
System Firmware & Operating System Storage
Stores the boot program, drivers, and operating system of the speaker’s main control chip.
Ensures fast startup and stable operation, preventing program loss or abnormal booting.
Supports OTA system updates for convenient later function iteration and bug fixes.
2. Large-Capacity Local Audio File Storage
32G/64G large capacity can store thousands of high-quality music tracks, audiobooks, children’s songs, white noise, and more.
Enables offline playback without relying on a network, improving user experience.
Compared with TF cards, eMMC uses an on-board BGA package, which is shockproof, loose-proof, and more stable.
3.Local Caching for Voice Assistants & AI Algorithms
Stores voice wake-up models and offline speech recognition lexicons.
Caches conversation logs and frequently used commands for faster response and usability under weak network conditions.
Works with DSP for audio data processing, enhancing radio reception, noise reduction, and human voice recognition performance.
| Model | G2864GTLCB | G28128TLCB | G28256TLCB |
|---|---|---|---|
| NAND Flash | 3DTLC NAND | 3DTLC NAND | 3DTLC NAND |
| Capacity | 64GB | 128GB | 256GB |
| CE | 1 | 2 | 4 |
| Read Speed | up to 330MB/s | up to 330MB/s | up to 330MB/s |
| Write Speed | up to 240MB/s | up to 240MB/s | up to 240MB/s |
| Operating Temperature | -25℃~85℃ | -25℃~85℃ | -25℃~85℃ |
| EP | ≥3000 | ≥3000 | ≥3000 |
| Packaging Specification | BGA 153 | BGA 153 | BGA 153 |
| Size | 11.5mm×13mm×1.0mm | 11.5mm×13mm×1.0mm | 11.5mm×13mm×1.2mm |
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