USB3320C-EZK - Hi-Speed USB 2.0 ULPI Transceiver | Microchip
MPN: USB3320C-EZK ✓ فعالUSB3320C-EZK نمای کلی
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.
جایگزین‌های drop-in برای USB3320C-EZK — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
USB3340-EZK
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
USB3320C-EZK-TR
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
USB3318C-CP
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
USB3322-EZK
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
USB3300-EZK
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TUSB1210
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
USB3320C-EZK مشخصات
| عملکرد | Hi-Speed USB 2.0 ULPI Transceiver |
| Protocol | USB 2.0 (ULPI / UTMI+ Low Pin Interface) |
| نرخ داده | 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) |
| بسته‌بندی | 32-QFN (5x5 mm) |
| دمای کاری | -40C to +85C |
| نوع نصب | Surface Mount |
| وضعیت RoHS | Compliant |
پیکربندی پین USB3320C-EZK
| پین 1 | VDD33 — 3.3 V analog/digital supply |
| پین 2 | DP — USB D+ differential data line |
| پین 3 | DM — USB D- differential data line |
| پین 4 | VBUS — USB VBUS monitor (with 30V ESD) |
| پین 5 | ID — OTG ID pin for role detection |
| پین 6 | REFCLK — 60 MHz reference clock input |
| پین 7 | RESET — Active-low reset, internal pull-up |
| پین 8 | GND — Ground |
| پین 9 | DATA0 — ULPI data bit 0 |
| پین 10 | DATA1 — ULPI data bit 1 |
| پین 11 | DATA2 — ULPI data bit 2 |
| پین 12 | DATA3 — ULPI data bit 3 |
| پین 13 | DATA4 — ULPI data bit 4 |
| پین 14 | DATA5 — ULPI data bit 5 |
| پین 15 | DATA6 — ULPI data bit 6 |
| پین 16 | DATA7 — ULPI data bit 7 |
| پین 17 | NXT — ULPI throttle/next signal from PHY |
| پین 18 | DIR — ULPI direction control |
| پین 19 | STP — ULPI stop signal from link |
| پین 20 | CLKOUT — 60 MHz ULPI clock output to link |
| پین 21 | VDDIO — I/O supply for ULPI link (1.6-3.6 V) |
| پین 22 | VDD18 — 1.8 V internal LDO output (decouple to GND) |
| پین 23 | VBAT — Battery / 3.3 V supply for charger detection |
| پین 24 | GND — Ground |
| پین 25 | TEST1 — Test pin (tie to GND in normal operation) |
| پین 26 | TEST2 — Test pin (tie to GND in normal operation) |
| پین 27 | NC — Not connected (per datasheet) |
| پین 28 | NC — Not connected (per datasheet) |
| پین 29 | NC — Not connected (per datasheet) |
| پین 30 | NC — Not connected (per datasheet) |
| پین 31 | NC — Not connected (per datasheet) |
| پین 32 | NC — Not connected (per datasheet) |
کاربردهای معمول
USB3320C-EZK مناسب است برای 6 کاربردs: 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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای USB3320C-EZK — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | 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 |
تفاوت‌های کلیدی
- On-chip 1.8 V LDO regulator (در مقابلUSB3300-EZK)
- +30 kV VBUS ESD protection (vs +15 kV on USB3318C-CP) (در مقابلUSB3318C-CP)
- Full BC 1.2 charger detection built in (در مقابلUSB3300-EZK)
یادداشت‌های طراحی
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.
اطلاعات انطباق
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.
