This datasheet provides detailed information on the CY7C68300A EZ-USB AT2™ USB 2.0 to ATA/ATAPI Bridge and its application design.
The CY7C68300A EZ-USB AT2™ implements a fixed‑function bridge between a USB 2.0 port and an ATA/ATAPI mass‑storage device, supporting high‑speed (480 Mbps) and full‑speed (12 Mbps) operation. It includes a 4‑Kbyte buffer, supports ATA PIO modes 0, 3, 4 and Ultra‑DMA modes 2, 4, and can operate from a 3.3 V supply.
The document provides pin‑assignment tables, electrical characteristics, package options (56‑pin SSOP and 56‑pin QFN), PCB layout recommendations, and design considerations such as proper power‑up sequencing and limitations with removable media devices.
| USB speed | High (480 Mbps) or full (12 Mbps) |
|---|---|
| Buffer size | 4 Kbyte |
| Supply voltage | 3.3 V |
| Package types | 56‑pin SSOP and 56‑pin QFN |
It operates at high‑speed (480 Mbps) or full‑speed (12 Mbps).
The device includes a 4‑Kbyte buffer.
The bridge operates from a 3.3 V supply.