Phison Ps2251-07-ps2307- May 2026
This post focuses on diagnosing and repairing USB flash drives utilizing the Phison PS2251-07 (often recognized as PS2307)
2. Key Specifications
| Feature | Specification | | :--- | :--- | | Product Series | PS2251-07 (PS2307) | | Interface | USB 3.0 (SuperSpeed) / Backward compatible with USB 2.0 | | Data Transfer Rate | Up to 150 MB/s (Read), Up to 80-100 MB/s (Write) Depending on NAND quality | | Process Technology | 55nm (Typical for this generation) | | NAND Support | MLC, SLC, and TLC (Triple Level Cell) Flash | | NAND Interface | Toggle / ONFI (Open NAND Flash Interface) | | Channels | 2-Channel Flash Interface | | Maximum Capacity | Supports up to 128GB (depending on firmware and NAND density) | | Operating Voltage | 3.3V (Internal regulators usually handle step-down from USB 5V) | | Package Type | LQFP (Low-profile Quad Flat Package) typically 48-pin or 64-pin | Phison Ps2251-07-ps2307-
Plug in the USB while holding the short, then release it after 2-3 seconds. This post focuses on diagnosing and repairing USB
Internal Components: Built with a 55nm process, it includes an integrated oscillator and supports global wear-leveling to extend the lifespan of the NAND flash. Phison Ps2251-07-ps2307-