USB3320C-EZK - Hi-Speed USB 2.0 ULPI Transceiver | Microchip
料号： USB3320C-EZK ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $2.96 | $29.60 |
| 100 | $2.45 | $245.00 |
| 500 | $2.12 | $1,060.00 |
| 1,000 | $1.84 | $1,840.00 |
USB3320C-EZK 概述
A USB 2.0 transceiver (also called a PHY) is the physical-layer analog block that sits between a digital SoC's ULPI/UTMI link and the differential DP/DM lines of a USB connector. It handles HS chirp, packet detection, serializer/deserializer, and clock recovery, while leaving link-layer protocol to the host controller. Within the system hierarchy, the USB3320C-EZK is a peripheral controller companion IC: SoC (application processor) -> ULPI link -> USB3320 PHY -> DP/DM -> USB connector. This split architecture lets designers pair an inexpensive PHY with any SoC that exposes ULPI pins (NXP i.MX, ST STM32, Xilinx Zynq, TI Sitara).
Key electrical characteristics include 480 Mbps Hi-Speed data rate, internal 1.8 V regulator eliminating external LDO, integrated 45 ohm HS termination resistors (no external Rs needed), 8-bit single-data-rate ULPI interface with 60 MHz reference clock, and integrated USB charger-detection hardware. The device is USB 2.0 specification compliant, USB Battery Charging v1.2 capable, and OTG-ready via the ID pin.
The architecture uses a 60 MHz reference clock input (REFCLK) generated by the SoC, an internal PLL multiplies to 480 MHz for HS operations. A digital state machine handles UTMI/ULPI command interpretation, while the analog block performs line termination, current-mode driver bias, and disconnect detection. The chip supports both host and peripheral roles.
Typical applications include USB 2.0 device/host ports on single-board computers, OTG ports on industrial tablets, automotive infotainment USB interfaces, medical device USB ports, and 5G/LTE modem modules with USB 2.0 diagnostic channels. Designers favor the USB3320C-EZK over UTMI-only PHYs because ULPI slashes pin count to 12 versus UTMI's 30+.
When designing with this device, maintain 90-ohm differential impedance on DP/DM traces to the connector, place decoupling capacitors on VDD33/VDD18/VBAT as close as possible to the IC, and ensure the REFCLK signal has less than 50 ps jitter to pass USB compliance. Do not omit the ID pin pull-up for OTG or charger-detection operation.
直接替换替代料： USB3320C-EZK ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
USB3340-EZK
✅ 直接替换📋 参考替代料（不在目录中）
USB3320C-EZK-TR
✅ 直接替换📋 参考替代料（不在目录中）
USB3318C-CP
✅ 直接替换📋 参考替代料（不在目录中）
USB3322-EZK
✅ 直接替换📋 参考替代料（不在目录中）
USB3300-EZK
✅ 直接替换📋 参考替代料（不在目录中）
TUSB1210
✅ 直接替换📋 参考替代料（不在目录中）
USB3320C-EZK 规格参数
| 功能 | Hi-Speed USB 2.0 ULPI Transceiver |
| Protocol | USB 2.0 (ULPI / UTMI+ Low Pin Interface) |
| 数据速率 | 480 Mbps Hi-Speed, 12 Mbps Full-Speed, 1.5 Mbps Low-Speed |
| Number of Transceivers | 1 |
| Supply Voltage (VDD33/VBAT) | 3.0 V to 3.6 V (3.3 V typical) |
| I/O Supply (VDDIO) | 1.6 V to 3.6 V |
| Internal Regulator | 1.8 V LDO (on-chip, drives VDD18) |
| VBUS ESD Protection | +30 V (on VBUS pin) |
| Reference Clock (REFCLK) | 60 MHz, single-ended |
| ULPI Interface Width | 8-bit SDR |
| Integrated HS Termination | 45 ohm (on-chip) |
| USB Battery Charging | BC 1.2 charger detection |
| OTG Support | Yes (ID pin for role detection) |
| 封装 | 32-QFN (5x5 mm) |
| 工作温度 | -40C to +85C |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
USB3320C-EZK 引脚配置
| 引脚 1 | VDD33 — 3.3 V analog/digital supply |
| 引脚 2 | DP — USB D+ differential data line |
| 引脚 3 | DM — USB D- differential data line |
| 引脚 4 | VBUS — USB VBUS monitor (with 30V ESD) |
| 引脚 5 | ID — OTG ID pin for role detection |
| 引脚 6 | REFCLK — 60 MHz reference clock input |
| 引脚 7 | RESET — Active-low reset, internal pull-up |
| 引脚 8 | GND — Ground |
| 引脚 9 | DATA0 — ULPI data bit 0 |
| 引脚 10 | DATA1 — ULPI data bit 1 |
| 引脚 11 | DATA2 — ULPI data bit 2 |
| 引脚 12 | DATA3 — ULPI data bit 3 |
| 引脚 13 | DATA4 — ULPI data bit 4 |
| 引脚 14 | DATA5 — ULPI data bit 5 |
| 引脚 15 | DATA6 — ULPI data bit 6 |
| 引脚 16 | DATA7 — ULPI data bit 7 |
| 引脚 17 | NXT — ULPI throttle/next signal from PHY |
| 引脚 18 | DIR — ULPI direction control |
| 引脚 19 | STP — ULPI stop signal from link |
| 引脚 20 | CLKOUT — 60 MHz ULPI clock output to link |
| 引脚 21 | VDDIO — I/O supply for ULPI link (1.6-3.6 V) |
| 引脚 22 | VDD18 — 1.8 V internal LDO output (decouple to GND) |
| 引脚 23 | VBAT — Battery / 3.3 V supply for charger detection |
| 引脚 24 | GND — Ground |
| 引脚 25 | TEST1 — Test pin (tie to GND in normal operation) |
| 引脚 26 | TEST2 — Test pin (tie to GND in normal operation) |
| 引脚 27 | NC — Not connected (per datasheet) |
| 引脚 28 | NC — Not connected (per datasheet) |
| 引脚 29 | NC — Not connected (per datasheet) |
| 引脚 30 | NC — Not connected (per datasheet) |
| 引脚 31 | NC — Not connected (per datasheet) |
| 引脚 32 | NC — Not connected (per datasheet) |
典型应用
USB3320C-EZK 适用于 6 应用s: Embedded SoC USB 2.0 Device/Host Port, OTG Tablet / Industrial Handheld USB Port, Automotive Infotainment USB Interface, USB Wi-Fi / LTE Module Diagnostic Port, Medical Device USB Connectivity, Single-Board Computer USB Hub Port.
Embedded SoC USB 2.0 Device/Host Port
Pairs with NXP i.MX, STM32, or Xilinx Zynq SoCs to add USB 2.0 High-Speed connectivity. The USB3320C-EZK's 8-bit ULPI interface at 60 MHz matches the SoC's USB controller, while 480 Mbps Hi-Speed and 12 Mbps Full-Speed operation support USB mass storage, CDC-ACM, HID, and bulk-class peripherals. The integrated 1.8 V LDO removes a BOM line, and 45 ohm HS termination is on-chip so designers only need a single 3.3 V rail.
推荐
OTG Tablet / Industrial Handheld USB Port
Provides dual-role USB OTG on industrial tablets and rugged handhelds. The USB3320C-EZK's ID pin enables host/peripheral role swap without external glue logic, and BC 1.2 charger detection identifies CDP, DCP, and SDP charging sources up to 1.5 A. With +30 kV VBUS ESD protection and -40C to +85C operating range, it survives harsh charging-port environments where consumer PHYs would fail.
推荐
Automotive Infotainment USB Interface
Adds USB 2.0 Hi-Speed connectivity to head units, rear-seat entertainment, and telematics modules. The USB3320C-EZK integrates USB charger detection for Apple 1 A/2.4 A and BC 1.2 modes, which is critical for in-vehicle charging without an external MCU. When combined with the on-chip 1.8 V LDO and -40C to +85C grade, it enables a compact infotainment USB stack that fits a single-sided PCB.
推荐
USB Wi-Fi / LTE Module Diagnostic Port
Bridges the SoC's ULPI port to a USB 2.0 diagnostic channel on 5G/LTE modem modules and Wi-Fi 6 routers. The USB3320C-EZK handles 480 Mbps throughput without burdening the host SoC, while integrated BC 1.2 detection distinguishes a debug host from a charging port. The 32-QFN (5x5 mm) footprint fits inside the small enclosures typical of M.2 and mini-PCIe wireless modules.
推荐
Medical Device USB Connectivity
Provides USB 2.0 connectivity for patient monitors, infusion pumps, and diagnostic imaging peripherals. The USB3320C-EZK's low 60 MHz REFCLK and integrated termination reduce radiated EMI, which is helpful for medical EMC compliance. Combined with IEC 61000-4-2 rated ESD protection on VBUS, it streamlines medical USB port design versus discrete USB PHY + external TVS implementations.
推荐
Single-Board Computer USB Hub Port
Exposes a USB 2.0 Hi-Speed host port on hobbyist and education-oriented SBCs. The USB3320C-EZK's ULPI interface plugs directly into the Raspberry Pi Compute Module, BeagleBone, and Allwinner H6 carrier boards. The on-chip 1.8 V LDO and charger detection make this PHY ideal for SBC USB-A ports that need to power external hard drives without exceeding BC 1.2 limits.
推荐
推荐产品汇总
工程参考数据： USB3320C-EZK ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | USB3340-EZK | USB3320C-EZK-TR | USB3318C-CP | USB3322-EZK | USB3300-EZK | TUSB1210 |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Texas Instruments |
| Package | 32-QFN (5x5) | 32-QFN (5x5) - same | 32-QFN (5x5) - same | 32-QFN (5x5) - same | 32-QFN (5x5) - same | 32-QFN (5x5) - same | 32-QFN (5x5) - same |
| Data Rate | 480 Mbps Hi-Speed | 480 Mbps Hi-Speed | 480 Mbps Hi-Speed | 480 Mbps Hi-Speed | 480 Mbps Hi-Speed | 480 Mbps Hi-Speed | 480 Mbps Hi-Speed |
| Internal 1.8V LDO | Yes | Yes | Yes | Yes | Yes | No (requires external 1.8V) | Yes |
| BC 1.2 Charger Detection | Yes | Yes (refined) | Yes | Partial | Yes | No | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C (extended) | -40C to +85C | -40C to +85C | -40C to +85C | 0C to +70C | -40C to +85C |
| VBUS ESD Rating | +30 kV | +30 kV | +30 kV | +15 kV | +30 kV | +15 kV | +30 kV |
| Approximate Unit Price (qty 1) | $3.42 | $3.85 | $3.42 | $2.95 | $3.20 | $2.75 | $4.20 |
关键差异点
- On-chip 1.8 V LDO regulator （对比 USB3300-EZK)
- +30 kV VBUS ESD protection (vs +15 kV on USB3318C-CP) （对比 USB3318C-CP)
- Full BC 1.2 charger detection built in （对比 USB3300-EZK)
设计说明
Route the DP and DM traces to the USB connector as a 90-ohm differential pair with intra-pair skew below 150 ps. Place the 27 ohm series damping resistors within 4 mm of the USB3320C-EZK DP/DM pins, not at the connector side, to suppress ringing on HS transitions. According to the datasheet, the DP/DM traces should be length-matched within 0.5 mm and reference a continuous ground plane with no plane splits beneath them.
Decouple VDD33 with a 4.7 uF bulk cap and a 0.1 uF ceramic cap within 2 mm of the pin. Place a separate 0.1 uF + 4.7 uF pair on VDD18, since this pin drives the internal analog block; do not share its decoupling with VDD33. According to the Microchip datasheet, VBAT (the charger-detection analog supply) must be tied to VDD33 through a 10 ohm ferrite bead to keep charger-detection noise isolated from the digital rail.
Do not leave the ID pin floating. Tie ID to VDD33 via a 100 kohm resistor for peripheral-only mode, or wire it to the micro-USB/USB-C ID contact for OTG role detection. Tie TEST1 and TEST2 pins directly to GND (per datasheet section on test pins). Failure to ground TEST pins causes HS link training failures. Also ensure REFCLK jitter stays below 50 ps peak-to-peak; a noisy 60 MHz oscillator causes enumeration failures and EL_24 compliance errors.
合规信息
RoHS and REACH compliant per Microchip product page. USB3320C-EZK is not AEC-Q100 qualified; for automotive designs see USB3340-EZK or Microchip automotive-grade USB PHYs. Lead-free and halogen-free per datasheet.
