The USB3500 is a USB 2.0 host, device or OTG PHY with UTMI+ interface, manufactured by SMSC. It supports HS, FS, LS data rates, supports FS preamble, HS SOF and LS keep alive pulse. It supports Host Negotiation Protocol (HNP) and Session Request protocol (SRP). Internal comparators support OTG monitoring of VBUS levels.
The SMSC USB3500 is a stand‑alone Hi‑Speed USB PHY that supports High‑Speed, Full‑Speed, and Low‑Speed data rates as a host, device, or OTG PHY. It complies with USB‑IF Hi‑Speed certification, the UTMI+ specification, and includes full support for the optional On‑The‑Go (OTG) protocol.
The device is offered in a compact 56‑lead QFN package (8 × 8 × 0.9 mm) and is targeted for applications such as cell phones, MP3 players, scanners, printers, external hard drives, cameras, and other portable media devices. Electrical characteristics include low power consumption (55 mA unconfigured, 83 µA suspend) and operation over a commercial temperature range of 0 °C to +70 °C.
| Supported USB data rates | High‑Speed, Full‑Speed, Low‑Speed |
|---|---|
| Internal regulator voltage | 1.8 V regulator, 3.3 V supply |
| Unconfigured current consumption | 55 mA typical |
| Suspend current consumption | 83 µA typical |
| Operating temperature range | 0 °C to +70 °C |
| Package type and size | 56‑pin QFN, 8 × 8 × 0.90 mm |
| USB‑IF certification | Hi‑Speed certified to USB Spec Rev 2.0 |
| OTG protocol support | Full support for optional On‑The‑Go (OTG) protocol |
Yes, it includes full support for the optional On‑The‑Go (OTG) protocol.
It is offered in a 56‑lead QFN package measuring 8 × 8 × 0.9 mm.
The typical unconfigured current is 55 mA.
It operates from 0 °C to +70 °C.