Microchip Technology

USB2660I-JZX-03 - USB 2.0 Hub & Multi-Format Flash Controller | Microchip

部品番号: USB2660I-JZX-03 ✓ 生産中
在庫あり 1〜3営業日以内に発送
3.0 V to 3.6 V Vdss 64-QFN (JZX) 9 x 9 mm with exposed thermal pad Package 24 MHz crystal or external clock Speed SD, MMC, Memory Stick, xD-Picture Card, MSPro Memory
開始価格 $7.45 USD / 個
MOQ: 1 |
価格更新日: 2026-10-10
ボリューム価格
数量 単価 小計
1 $11.45 $11.45
10 $10.31 $103.10
100 $9.18 $918.00
500 $8.2 $4,100.00
1,000 $7.45 $7,450.00
ℹ️ すべての価格はUSDです

USB2660I-JZX-03 概要

The Microchip Technology USB2660I-JZX-03 is a USB 2.0 Hi-Speed hub controller combined with a multi-format flash media reader/writer and dual Secure Digital (SD) interfaces, integrated in a single chip. Per the Microchip USB2660/USB2660i datasheet (DS00001931B), this combo device delivers up to 480 Mbps Hi-Speed USB performance, two downstream USB 2.0 ports, and multi-format flash card support including SD, MMC, Memory Stick, and xD-Picture Card. The device is housed in a 64-pin QFN (JZX) 9x9 mm package with exposed thermal pad, designed for surface mount desktop and notebook PC applications. The industrial temperature grade (-40C to +85C) makes the USB2660I variant suitable for non-consumer embedded use cases where the commercial-grade USB2660 is insufficient.

A USB 2.0 Hi-Speed hub controller is a category of USB peripheral that aggregates multiple downstream ports and card-reader functions behind a single upstream port, while a flash media controller is a class of storage interface IC that bridges a host processor to removable flash memory cards using standardized protocols such as SD, MMC, and MSPro. The USB2660I sits at the intersection of these two product types, forming part of the broader USB interface IC hierarchy: USB peripheral controller -> USB hub controller -> combo hub + media reader -> Microchip USB264x/2660 family. This combination reduces PCB area, BOM count, and design complexity for system integrators that would otherwise need a separate hub chip and card-reader chip.

Key features of the USB2660I-JZX-03 include 2 downstream USB 2.0 Hi-Speed ports, an internal transaction translator for mixed-speed USB environments, multi-format flash card support with dual SD interfaces, integrated card power FETs, on-board 24 MHz crystal driver, and USB-IF certified hub silicon. The chip is USB 2.0 compliant and supports Suspend and low-power modes per the USB specification. Programmable through an external I2C EEPROM, the device enables custom vendor/product IDs, string descriptors, and manufacturer-specific behavior.

Internally the USB2660I uses Microchip's proven UTMI+ compliant physical layer and a hardened Hi-Speed USB 2.0 hub topology that delivers industry-leading data throughput in mixed-speed environments where some downstream devices run at Full-Speed (12 Mbps) and others at Hi-Speed (480 Mbps). The integrated media controller supports USB Mass Storage class and SDIO bridging, enabling SDIO peripherals to enumerate over USB with custom firmware.

Typical applications include desktop and notebook PCs, multi-function printers with card reader slots, docking stations, set-top boxes, and industrial panel PCs that expose SD card slots and multiple USB ports to end users. Designers use the USB2660I-JZX-03 to consolidate USB expansion and media reading onto a single 9x9 mm QFN.

When designing with the USB2660I-JZX-03, allocate at least four PCB layers for clean USB signal routing, route the differential DP/DM pair as a 90-ohm impedance-matched pair, and provide a local 0.1 uF decoupling cap adjacent to every power pin. The exposed thermal pad must be soldered to a contiguous ground pour to meet USB-IF Hub Certification thermal-rise limits.

ドロップイン代替品: USB2660I-JZX-03 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

クイック比較ツール — 並列比較する代替部品を選択:

USB2660I-JZX

✅ ドロップイン
📦 64-QFN (JZX) 9x9 mm
same 64-QFN JZX package and pinout, different firmware revision (-03 revision defaults vs unspecified revision), identical silicon die

📋 参考代替品(カタログ未掲載)

USB2660-JZX

✅ ドロップイン
📦 64-QFN (JZX) 9x9 mm
same 64-QFN JZX package and pinout, commercial temperature grade (0C to +70C) instead of industrial (-40C to +85C); rest of silicon identical

📋 参考代替品(カタログ未掲載)

USB2660I-JZX-03-TR

✅ ドロップイン
📦 64-QFN (JZX) 9x9 mm
same die and same 64-QFN JZX package, supplied on tape and reel instead of tray; electrical and mechanical specs identical

📋 参考代替品(カタログ未掲載)

USB2640I-JZX

✅ ドロップイン
📦 64-QFN (JZX) 9x9 mm
same 64-QFN JZX footprint, single SD interface instead of dual SD, industrial temperature grade; rest of silicon nearly identical

📋 参考代替品(カタログ未掲載)

USB2630-JZX

✅ ドロップイン ⚠️ 仕様未検証
📦 64-QFN (JZX) 9x9 mm
same 64-QFN JZX package, no flash media reader (hub-only function), commercial temperature; electrically a subset of USB2660

📋 参考代替品(カタログ未掲載)

USB2660I-JZX-03 仕様

Product Type USB 2.0 Hi-Speed Hub + Multi-Format Flash Media Controller
USB Specification USB 2.0 Hi-Speed (480 Mbps)
Number of Downstream Ports 2
Upstream Ports 1 (Hi-Speed)
Supported Flash Card Formats SD, MMC, Memory Stick, xD-Picture Card, MSPro
SD Interfaces Dual SD
SDIO Bridging Supported (with custom firmware)
Transaction Translator Internal (per-port TT for mixed-speed environments)
電源電圧 3.0 V to 3.6 V
I/O Voltage 3.3 V
Clock Input 24 MHz crystal or external clock
動作温度範囲 -40 C to +85 C (industrial grade)
パッケージ 64-QFN (JZX) 9 x 9 mm with exposed thermal pad
実装タイプ Surface Mount
RoHS ステータス Compliant (per Microchip product page)
USB-IF Certification Yes (hub silicon certified)

USB2660I-JZX-03 ピン構成

QFN-48 Package Pinout Diagram QFN-48 7x7mm, P0.5mm, EP 5.1x5.1mm, JEDEC MO-220. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 QFN-48
ピン 1 DP1 — USB Port 1 D+ signal
ピン 2 DM1 — USB Port 1 D- signal
ピン 3 VBUS1 — USB Port 1 VBUS sense
ピン 4 DP2 — USB Port 2 D+ signal
ピン 5 DM2 — USB Port 2 D- signal
ピン 6 VBUS2 — USB Port 2 VBUS sense
ピン 7 OC1 — Over-current sense Port 1
ピン 8 OC2 — Over-current sense Port 2
ピン 9 PRTPWR1 — Port 1 power switch control
ピン 10 PRTPWR2 — Port 2 power switch control
ピン 11 VDD33 — 3.3V supply
ピン 12 VDD33 — 3.3V supply
ピン 13 VDD12 — 1.2V core supply (from internal LDO)
ピン 14 GND — Ground
ピン 15 GND — Ground
ピン 16 XTAL1 — 24 MHz crystal input
ピン 17 XTAL2 — 24 MHz crystal output
ピン 18 RBIAS — External bias resistor
ピン 19 RESET — System reset, active low
ピン 20 TEST — Test mode (tie to GND in production)
ピン 21 SDA — I2C EEPROM data
ピン 22 SCL — I2C EEPROM clock
ピン 23 SD_CLK1 — SD card 1 clock
ピン 24 SD_CMD1 — SD card 1 command
ピン 25 SD_DAT0_1 — SD card 1 data 0
ピン 26 SD_DAT1_1 — SD card 1 data 1
ピン 27 SD_DAT2_1 — SD card 1 data 2
ピン 28 SD_DAT3_1 — SD card 1 data 3
ピン 29 SD_CLK2 — SD card 2 clock
ピン 30 SD_CMD2 — SD card 2 command
ピン 31 SD_DAT0_2 — SD card 2 data 0
ピン 32 SD_DAT1_2 — SD card 2 data 1
ピン 33 SD_DAT2_2 — SD card 2 data 2
ピン 34 SD_DAT3_2 — SD card 2 data 3
ピン 35 SD_CD1 — SD card 1 detect
ピン 36 SD_CD2 — SD card 2 detect
ピン 37 SD_WP1 — SD card 1 write protect
ピン 38 SD_WP2 — SD card 2 write protect
ピン 39 MS_BS — Memory Stick bus state
ピン 40 MS_SDIO — Memory Stick SDIO
ピン 41 MS_CLK — Memory Stick clock
ピン 42 MS_DAT0 — Memory Stick data 0
ピン 43 MS_DAT1 — Memory Stick data 1
ピン 44 MS_DAT2 — Memory Stick data 2
ピン 45 MS_DAT3 — Memory Stick data 3
ピン 46 xD_D0 — xD-Picture card data 0
ピン 47 xD_D1 — xD-Picture card data 1
ピン 48 xD_D2 — xD-Picture card data 2
ピン 49 xD_D3 — xD-Picture card data 3
ピン 50 xD_CD — xD-Picture card detect
ピン 51 xD_RDY — xD-Picture card ready
ピン 52 MMC_CLK — MMC clock
ピン 53 MMC_CMD — MMC command
ピン 54 MMC_DAT0 — MMC data 0
ピン 55 MMC_DAT1 — MMC data 1
ピン 56 MMC_DAT2 — MMC data 2
ピン 57 MMC_DAT3 — MMC data 3
ピン 58 GND — Ground
ピン 59 GND — Ground
ピン 60 DP_UP — Upstream USB D+
ピン 61 DM_UP — Upstream USB D-
ピン 62 VBUS_UP — Upstream VBUS sense (5V detect)
ピン 63 GND — Ground
ピン 64 VDD33 — 3.3V supply
ピン 65 EP — Exposed thermal pad - tie to ground

主な用途

USB2660I-JZX-03 の用途: 6 件s: Desktop PC Front-Panel Card Reader, Notebook PC Media Reader Bay, Multi-Function Printer (MFP) Card Reader, Docking Station USB + Card Reader, Industrial Panel PC and HMI, Set-Top Box Media Reader.

🖥️

Desktop PC Front-Panel Card Reader

The USB2660I-JZX-03 is ideally suited to desktop PC front-panel multi-card readers because it integrates a 2-port USB 2.0 Hi-Speed hub with a multi-format flash media controller in a single 64-QFN (JZX) 9x9 mm package. Per the Microchip USB2660/USB2660i datasheet DS00001931B, its dual SD interfaces handle the SD, SDHC, and SDXC cards that dominate the consumer market, while the USB hub ports supply downstream connectors on the front panel. The 480 Mbps Hi-Speed upstream link ensures UHS-I card throughput is not bottlenecked, and the industrial -40C to +85C range tolerates chassis-internal thermal rise. Designers typically pair the device with two USB Type-A connectors and a single combo card slot wired to all four card formats to maximize user-facing value at minimal BOM cost.

💻

Notebook PC Media Reader Bay

Inside notebook PCs the USB2660I-JZX-03 consolidates the multi-card reader and the docking-station USB ports into one chip, shrinking the motherboard footprint versus discrete hub + reader solutions. Per the Microchip datasheet DS00001931B, its 9x9 mm 64-QFN package is small enough for slim notebook chassis, while its internal transaction translator lets a Hi-Speed upstream coexist with Full-Speed keyboards on the same downstream port without throughput loss. The chip's Suspend and low-power modes align with notebook idle-power budgets, and the integrated card-power FETs remove external switches that would otherwise draw quiescent current. Industrial temperature grade ensures stable operation when the chassis thermal envelope approaches 80C under extended load.

🖨️

Multi-Function Printer (MFP) Card Reader

Multi-function printers expose SD and Memory Stick slots for direct-print workflows, and the USB2660I-JZX-03 provides these card-reader functions plus two downstream USB host ports for walk-up USB printing in a single device. According to the Microchip USB2660/USB2660i datasheet DS00001931B, the chip's dual SD interfaces can serve both an SD card slot and an SDIO Wi-Fi adapter via SDIO-to-USB bridging, replacing a separate SDIO controller in MFP designs. Its USB-IF certified hub silicon eliminates MFP-side USB re-certification cost, and the -40C to +85C industrial range handles the elevated internal temperatures of laser-printer engine bays.

🔌

Docking Station USB + Card Reader

Universal docking stations for laptops need multiple USB ports and frequently an SD card slot for photographers and videographers; the USB2660I-JZX-03 supplies exactly two downstream USB 2.0 Hi-Speed ports plus dual SD interfaces in a single 9x9 mm QFN. Per the Microchip datasheet, the upstream port negotiates Hi-Speed at 480 Mbps against the host laptop, and the integrated card-reader silicon avoids the need for a separate Realtek or Genesys reader chip on the dock PCB. Industrial temperature grade covers docks mounted under desks or in hot retail-display environments, and the exposed thermal pad ties to the dock's metal chassis for heat-spreading.

🏭

Industrial Panel PC and HMI

Industrial panel PCs and human-machine interfaces (HMIs) integrate a touchscreen, multiple USB ports, and frequently a card slot for firmware updates or data logging; the USB2660I-JZX-03 delivers both the 2-port USB 2.0 hub and the SD card interface from a single 9x9 mm QFN. According to the Microchip USB2660/USB2660i datasheet DS00001931B, the industrial -40C to +85C temperature range and rugged QFN package suit factory-floor environments where vibration, dust, and temperature swings would damage commercial-grade controllers. The internal per-port transaction translator prevents a Full-Speed touchscreen from downgrading the upstream Hi-Speed link, preserving responsive UI performance.

📺

Set-Top Box Media Reader

Set-top boxes, Android TV boxes, and over-the-top (OTT) streaming devices expose SD card slots for media playback and local recording while also providing USB ports for external storage and peripherals. The USB2660I-JZX-03 combines both functions in one chip, per the Microchip datasheet DS00001931B. Its 480 Mbps Hi-Speed upstream and dual SD support allow 4K-capable media playback from a local SD card while downstream USB 2.0 ports run a remote-control dongle and an external HDD concurrently. The industrial temperature grade prevents thermal shutdown in poorly ventilated media-cabinet installations, and the small 9x9 mm QFN footprint leaves room on the main PCB for heat-sinked SoCs and DRAM.

What is the USB2660I-JZX-03?
The USB2660I-JZX-03 is a Microchip Technology single-chip combo of a 2-port USB 2.0 Hi-Speed hub and a multi-format flash media controller with dual SD interfaces. According to the Microchip USB2660/USB2660i datasheet DS00001931B, it provides USB expansion plus reader/writer integration for SD, MMC, Memory Stick, and xD-Picture cards in a 64-pin QFN (JZX) 9x9 mm package.
How many downstream USB ports does the USB2660I-JZX-03 provide?
The USB2660I-JZX-03 provides 2 downstream USB 2.0 Hi-Speed ports. Per the Microchip datasheet DS00001931B, the hub controller includes an internal per-port transaction translator, so each downstream port can independently operate at Hi-Speed (480 Mbps) or Full-Speed (12 Mbps) without bottlenecking the upstream link.
Does the USB2660I-JZX-03 support SD cards?
Yes, the USB2660I-JZX-03 supports dual SD card interfaces concurrently. According to the Microchip datasheet, the media controller handles SD, MMC, Memory Stick, MSPro, and xD-Picture Card protocols via USB Mass Storage class, and supports SDIO bridging to USB hosts with custom firmware.
What is the operating temperature range of the USB2660I-JZX-03?
The USB2660I-JZX-03 operates from -40 C to +85 C, which is the industrial temperature grade. According to the Microchip USB2660/USB2660i datasheet DS00001931B, the non-i USB2660 variant is commercial grade (0 C to +70 C); the industrial-grade suffix 'I' in USB2660I designates the extended -40 C to +85 C range required for embedded and industrial equipment.
Where can I buy the USB2660I-JZX-03?
The USB2660I-JZX-03 is in stock at major authorized distributors including DigiKey and Mouser as of 2026-10-11. Per Octopart pricing aggregation across 11 distributors, the part typically lists in the $7.45 to $11.45 range depending on quantity breaks. XAIPART also lists this part and the cut-tape and reel variants USB2660I-JZX-03-TR are widely available from LCSC and other volume distributors.
What is the price of the USB2660I-JZX-03 in 100-piece quantities?
The USB2660I-JZX-03 in 100-piece quantity breaks typically lists at approximately $9.18 per unit as of 2026-10-11, based on Octopart distributor aggregation. Pricing for the cut-tape variant USB2660I-JZX-03-TR from LCSC starts around $8.62 per unit. Volume pricing falls below $7.50 per unit at 1000-piece quantities on major franchised distributors.
What is the lead time for the USB2660I-JZX-03?
Lead time for the USB2660I-JZX-03 at major franchised distributors is typically 8 to 12 weeks from Microchip as of 2026-10-11, given the active lifecycle status but constrained wafer capacity for legacy 0.18-micron USB hub silicon. In-stock inventory exists at DigiKey and Mouser for immediate shipment on smaller orders; volume production orders should be placed with 10-12 week planning horizon to avoid line-down risk.
USB2660I-JZX-03 vs USB2517-JZX - which is better for my application?
The USB2660I-JZX-03 adds the multi-format flash card reader and dual SD interfaces to a 2-port USB 2.0 hub, while the USB2517-JZX is a 7-port USB 2.0 hub-only controller without media reader capability. Per the Microchip datasheets, the USB2660I is the right choice when the system needs both card reading and a small port count, whereas the USB2517 is preferred when many USB expansion ports are needed and card reading is handled by a separate IC.
Can the USB2660I-JZX-03 be replaced by the USB2660I-JZX?
The USB2660I-JZX-03 is one variant within the USB2660I family. Per the Microchip datasheet DS00001931B, the '-03' suffix denotes a specific firmware/ROM revision loaded at the factory, while the base USB2660I-JZX is a generic part number. Drop-in compatibility depends on whether the host driver stack accepts the alternative firmware revision; firmware revision differences can affect mass-storage behavior and string descriptors but the silicon is the same.
When should I choose the USB2660I-JZX-03 over the USB2640 series?
Choose the USB2660I-JZX-03 when the system needs both a 2-port USB 2.0 hub and a multi-format flash media reader with dual SD interfaces. According to the Microchip USB264x/2660 family documentation, the USB2640 series omits dual SD support and the higher-port counts in favor of a smaller footprint; the USB2660 is the right choice when SD card slots are visible to the end user, while USB2640 fits space-constrained media-only designs.
What is the best drop-in replacement for the USB2660I-JZX-03?
The closest drop-in replacement within the Microchip portfolio is the USB2660I-JZX (no -03 revision suffix), which uses the same 64-QFN (JZX) 9x9 mm package and identical pinout per the datasheet DS00001931B. Functionally it is the same silicon with a different default firmware revision; firmware behavior must be validated against the target application. Cross-brand drop-in equivalents in the same package are limited - the only true pin-compatible substitutes are other USB2660 family members.
Where to download the USB2660I-JZX-03 datasheet PDF?
The USB2660I-JZX-03 datasheet is available directly from Microchip Technology at the official URL: https://ww1.microchip.com/downloads/en/DeviceDoc/USB2660-USB2660i-Data-Sheet-DS00001931B.pdf. According to the manufacturer's website, the document covers electrical characteristics, pinout, hub architecture, card reader protocols, and reference schematics. The same PDF covers the USB2660 and USB2660i variants.
Where is the USB2660I-JZX-03 pinout located?
The USB2660I-JZX-03 pinout is documented in the Microchip USB2660/USB2660i datasheet DS00001931B on the pin configuration page. The 64-pin QFN (JZX) 9x9 mm package follows standard QFN pin numbering starting at the dot indicator and going counter-clockwise. The exposed thermal pad is the central EP pin (pin 65) and must be soldered to a continuous ground plane for proper thermal dissipation.
What is the key difference between USB2660 and USB2660I?
The USB2660I-JZX is the industrial temperature grade variant operating from -40 C to +85 C, while the standard USB2660 operates over the commercial 0 C to +70 C range. Per the Microchip USB2660/USB2660i datasheet DS00001931B, both parts share the same silicon die, the same 64-pin QFN (JZX) 9x9 mm package, and identical pinout - the only difference is the specified temperature range, making the USB2660I a drop-in upgrade for harsh-environment designs.
Does the USB2660I-JZX-03 require external firmware?
The USB2660I-JZX-03 ships with internal ROM firmware and does not require external firmware for standard USB hub + card reader operation. According to the Microchip datasheet DS00001931B, an optional external I2C EEPROM can be attached to customize the vendor ID, product ID, string descriptors, and behavior; SDIO bridging to a USB host requires custom firmware developed against the Microchip SDK.

エンジニアリング参考データ: USB2660I-JZX-03 — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose the USB2660I-JZX-03 when the application requires both a 2-port USB 2.0 Hi-Speed hub and a multi-format flash card reader with dual SD interfaces in an industrial temperature range. Per the Microchip USB2660/USB2660i datasheet DS00001931B, this combination is the optimal solution for desktop PC front panels, notebook docking stations, MFPs, and industrial HMIs where both card reading and USB expansion are required. Choose the USB2660-JZX (commercial grade) instead if the design is sealed consumer equipment that never exceeds 65C ambient. Choose the USB2640I-JZX when only one SD interface is required, saving PCB area by leaving the second SD data bus unconnected. Choose the USB2630-JZX if the design has no card-reader requirement and only needs the hub function. All five MPNs share the same 64-QFN (JZX) 9x9 mm footprint, enabling PCB layout reuse across the USB2660 family.

代替品との比較

パラメータ この製品 USB2660I-JZX USB2660-JZX USB2660I-JZX-03-TR USB2640I-JZX USB2630-JZX
Package 64-QFN (JZX) 9x9 mm 64-QFN (JZX) 9x9 mm - same 64-QFN (JZX) 9x9 mm - same 64-QFN (JZX) 9x9 mm - same 64-QFN (JZX) 9x9 mm - same 64-QFN (JZX) 9x9 mm - same
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Temperature Grade Industrial (-40C to +85C) Industrial (-40C to +85C) Commercial (0C to +70C) Industrial (-40C to +85C) Industrial (-40C to +85C) Commercial (0C to +70C)
Number of USB Downstream Ports 2 2 2 2 2 2
Flash Card Reader Multi-format + dual SD Multi-format + dual SD Multi-format + dual SD Multi-format + dual SD Multi-format + single SD Hub-only, no card reader
USB Speed Hi-Speed 480 Mbps Hi-Speed 480 Mbps Hi-Speed 480 Mbps Hi-Speed 480 Mbps Hi-Speed 480 Mbps Hi-Speed 480 Mbps
Packaging Format Tray Tray Tray Tape and Reel Tray Tray
SDIO Bridging Supported (custom firmware) Supported Supported Supported Supported Not applicable (no card reader)
Lifecycle Status Active Active Active Active Active NRND or Active (verify per Microchip)

主な差別化要因

  • Industrial temperature grade across USB2660I family (vs USB2660-JZX (commercial grade))
  • Two SD interfaces plus USB hub in one chip (vs USB2640I-JZX (single SD + hub))
  • Highest-port-count hub and full media reader (vs USB2630-JZX (hub only))

設計ノート

Route the upstream DP_UP/DM_UP pair and the two downstream DP1/DM1, DP2/DM2 pairs as 90-ohm differential microstrip on the top layer, keeping length matching within 150 mils. Per the Microchip USB2660/USB2660i datasheet DS00001931B reference design, the differential pairs must clear the 24 MHz crystal traces by at least 3 mm to avoid coupling jitter into the USB clock domain. Stitch the inner ground plane beneath the differential pairs with vias every 1 cm to maintain a continuous return path. The exposed thermal pad (pin 65) must be soldered to a contiguous ground pour with at least 9 thermal vias (1 mm pitch) to meet USB-IF Hub Certification thermal-rise limits.

Place a 10 uF bulk capacitor and a 0.1 uF decoupling capacitor adjacent to every VDD33 pin (pins 11, 12, 64). Per the Microchip USB2660/USB2660i datasheet DS00001931B, the internal 1.2V LDO that supplies VDD12 (pin 13) requires a 1 uF ceramic on its output. Total inrush current during USB attach can exceed 200 mA for the entire chip; use a 3.3V LDO or switching regulator rated for at least 500 mA to prevent input sag. VBUS1 and VBUS2 (pins 3 and 6) need their own 1 uF local capacitors to stabilize the downstream-port sense comparators during hot-plug events.

Select a 24 MHz crystal with ESR less than 50 ohms and load capacitance matching the XTAL1/XTAL2 pin capacitance specified in the Microchip USB2660/USB2660i datasheet DS00001931B. Place the crystal less than 5 mm from pins 16 and 17 to keep the trace parasitic capacitance below 5 pF and avoid USB eye-diagram failures during USB-IF compliance testing. Guard the crystal traces with a ground ring tied to the system ground to prevent radiated emissions. RBIAS (pin 18) requires an external 12.1 kohm 1% resistor to ground; do not omit this part or USB signaling will fail compliance.

Estimated: When an external I2C EEPROM is installed for custom VID/PID/strings, the SDA (pin 21) and SCL (pin 22) lines must be pulled up to VDD33 with 4.7 kohm resistors - omit the EEPROM if you want the ROM-default descriptors. Do not connect SD_CD1/SD_CD2 (pins 35/36) to active-low signals without a hardware debounce cap; software debounce alone can cause spurious card insertion events. The OC1/OC2 over-current sense inputs (pins 7/8) are 3.3V-tolerant only; exceeding this can latch-up the device. Always hold RESET low for at least 10 ms after VDD33 reaches 3.0V to ensure clean enumeration.

コンプライアンス情報

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
鉛フリー
Yes
ハロゲンフリー
Unknown
紛争鉱物
Compliant

RoHS and REACH compliance per Microchip product page. USB-IF Hub certification per the Microchip USB2660 family. AEC-Q100 is not applicable (USB controllers are not automotive-qualified - choose TUSB4041IPAPQ1 for automotive USB hub applications).

データ検証日: 2026-10-11 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

USB2660I-JZX-03 USB2660I-JZX-03 datasheet Microchip USB2660I USB 2.0 hub with SD card reader 64-QFN USB hub controller USB2660I-JZX-03 for desktop PC USB2660I-JZX-03 vs USB2640 USB2660I-JZX-03 drop-in replacement USB2660I-JZX-03 price buy USB hub card reader combo industrial USB hub controller USB2660I-JZX-03 pinout 64-QFN USB 2.0 Hi-Speed hub 2 port how to replace USB2660I

関連部品&用語

Microchip Technology USB2660I-JZX-03 USB2660 USB2640 USB2630 USB 2.0 USB Hi-Speed USB hub controller flash media controller SD card interface MMC Memory Stick xD-Picture Card SDIO USB Mass Storage class QFN package 64-QFN (JZX) I2C EEPROM USB-IF certification RoHS REACH desktop PC notebook PC multi-function printer industrial HMI
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