USB3320C-EZK-TR Datasheet and Specifications Guide
Overview
The USB3320C-EZK-TR is a high-speed USB 2.0 PHY (physical layer transceiver) from Microchip (formerly SMSC) . Compliant with the USB 2.0 standard , it supports 480Mbps High-Speed mode , 12Mbps Full-Speed mode , and 1.5Mbps Low-Speed mode . This device utilizes the UTMI+ Level 3 interface standard , enabling direct connection to a wide range of microprocessors, microcontrollers, or SoCs (such as those from NXP, TI, STM, and Renesas).
The USB3320C features low power consumption, high integration, and flexible power design . It includes a built-in power regulator, termination resistors, On-The-Go (OTG) detection, and cable plug-and-unplug detection , greatly simplifying USB hardware design. It comes in a QFN-32 (5mm × 5mm) package , making it suitable for compact PCB applications.
Core parameters
Parameter | Numerical |
Protocol Standards | USB 2.0 (USB 1.1 compatible) |
Maximum transmission rate | 480Mbps (High-Speed mode) |
Interface Type | UTMI+ Level 3 standard interface (8-bit parallel) |
Supply voltage range | 1.8V (core) / 3.3V (I/O and USB signals) |
Working Mode | Host, Device, and OTG modes |
Built-in functions | Power regulator, terminal matching, cable detection, VBUS detection |
Standby power consumption | 100µA (typical) |
Operating temperature range | –40°C to +85°C |
Package | QFN-32 (5mm × 5mm) |
Environmental standards | RoHS lead-free, REACH compliant |
Features
Fully compatible with USB 2.0 standards
Supports high-speed (480Mbps), full-speed (12Mbps) and low-speed (1.5Mbps) modes.
UTMI+ interface has strong compatibility
Supports UTMI+ Level 3 specifications and can be directly connected to a variety of master control SoCs, DSPs, and FPGAs.
Low power design
Built-in power regulator and power management module, idle power consumption as low as 100µA.
Integrated terminal and detection functions
Integrates pull-up/pull-down resistors, cable detection, VBUS detection, and OTG ID pin detection to simplify external circuits.
Flexible power supply architecture
Supports 8V core power supply and 3.3V I/O power supply separation design, suitable for low voltage systems.
Industrial-grade reliability
The operating temperature range is –40°C to +85°C, making it suitable for industrial and embedded scenarios.
Typical application scenarios
Embedded system USB interface
Add USB 2.0 communication capabilities to MCU, DSP, or FPGA systems.
portable devices
Mobile terminals, data loggers, handheld meters.
Network and communication equipment
Routers, modems, wireless gateways, USB-Hub controllers.
Automotive and Industrial Control
In-vehicle information systems, industrial control terminals, and embedded data transmission.
Consumer electronics
Multimedia players, smart home appliances, and monitoring systems.
Performance Comparison
Index | USB3320C-EZK-TR | USB3300 (Microchip low-power version) |
USB protocol version | USB 2.0 | USB 2.0 |
Maximum rate | 480Mbps | 480Mbps |
Interface Type | UTMI+ Level 3 | ULPI (8-bit) |
Supply voltage | 1.8V / 3.3V | 1.8V / 3.3V |
Encapsulation | QFN-32 | QFN-24 |
Power consumption performance | Lower (100µA standby) | About 200µA standby |
Support OTG | yes | yes |
Compared with the USB3300, the USB3320C-EZK-TR provides more complete UTMI+ interface support, lower standby power consumption and stronger OTG functionality , making it more suitable for high-performance embedded designs.
Manufacturer: Microchip Technology Inc.
Microchip is a leading global provider of embedded control solutions, including MCUs, DSPs, memory, and interface chips. The USB3320 series , derived from Microchip’s extensive experience in USB technology, combines high compatibility with low power consumption for widespread use in communications, industrial, and consumer electronics.
Why choose USB3320C-EZK-TR?
● Supports USB 2.0 triple-rate (480/12/1.5Mbps)
● Standard UTMI+ interface , compatible with mainstream MCU/FPGA/SoC
● Low-power design (only 100µA in standby mode)
● Integrated terminal, cable detection and VBUS control
● Supports OTG (On-The-Go) mode
● Industrial-grade wide temperature range of –40°C to +85°C
● Microchip long-term supply guarantee and high reliability certification
Frequently Asked Questions (FAQ)
Q1: What are the main differences between the USB3320C and USB3300?
A: The two differ in interface type and application targeting . The USB3320C uses the UTMI+ interface , while the USB3300 uses the ULPI interface . They are compatible with different host architectures. The UTMI+ interface is more suitable for legacy or custom USB controllers, while the ULPI interface, with its fewer pins and higher integration, is more commonly used in modern MCUs or SoCs.
Furthermore, the USB3320C offers superior power consumption and interference immunity , making it suitable for power-sensitive or high-reliability applications such as portable devices and industrial control systems.
Q2: Does it support OTG dual-role?
A: Yes . The USB3320C can switch between Host and Device modes via configuration pins . It supports OTG (On-The-Go) dual-role functionality and can dynamically switch roles based on the USB topology during system operation. It is widely used in embedded terminals, tablets, and communication devices.
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