USB2512B-AEZG-TR - 2-Port USB 2.0 Hub Controller | Microchip (Tape & Reel)
MPN: USB2512B-AEZG-TR ✓ Hoạt độngUSB2512B-AEZG-TR Tóm tắt
A USB hub controller is an interface integrated circuit that expands one host USB connection into multiple downstream ports. The hub-controller category belongs to the USB interface IC family, which connects USB physical data lines to an embedded system and manages enumeration, port power, transaction translation, and device attachment. A two-port controller is especially useful when a product needs more peripheral connections without adding a full-size host controller or external discrete hub circuitry.
The USB2512B-AEZG-TR provides two USB 2.0 downstream ports, low-speed, full-speed, and high-speed transaction support, and a 3.3 V-class operating supply range of 3 V to 3.6 V. Its configurable MultiTRAK architecture is intended to improve power efficiency in systems where not every downstream device requires continuous maximum-rate operation. Configuration access through I2C EEPROM and SMBus allows firmware or production equipment to control hub behavior without requiring a separate complex external controller.
Communication with the hub is handled through its USB 2.0 interface and serial configuration interfaces. The 36-QFN package provides a compact surface-mount footprint for embedded consumer, mobile, and portable equipment. The listed commercial-temperature operating range is 0 to 70 C, making the part suitable for indoor consumer and mobile products where that temperature range is sufficient.
Typical uses include tablet and mobile-device USB expansion, docking accessories, portable media equipment, and embedded systems that need two downstream USB connections. The controller can reduce connector-count pressure in compact designs while retaining high-speed USB 2.0 operation. System designers should account for the USB connection limits of the upstream host, cable routing, ESD protection, and the power budget of both downstream ports.
Use the manufacturer datasheet and USB2512B QFN schematic checklist when assigning every pin and checking required support components. In particular, preserve the VBUS_DET behavior described by Microchip so the host can detect bus state and force a hub reset through VBUS toggling where required.
This product overview combines the device specifications, documented design resources, procurement considerations, and practical integration guidance. It is organized for engineers who need a concise technical basis for schematic review, PCB planning, firmware configuration, and footprint-compatible replacement decisions.
Bộ thay thế dễ dàng lắp đặt cho USB2512B-AEZG-TR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với USB2512B-AEZG-TR (cùng hình factor và footprint) — khác nhau ở Number of Downstream Ports, Package, Product Type, RoHS Status, USB Standard.
USB2512-AEZG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →USB2512BI-AEZG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →USB2512B-AEZG-BYC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
USB2513B-AEZC
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →USB2512B-AEZG-TR Thông số kỹ thuật
| Product Type | USB 2.0 hub controller |
| Number of USB Ports | 2 ports |
| USB Standard | USB 2.0 |
| Maximum USB Data Rate | 480 Mbps |
| Supported USB Speeds | Low-speed, full-speed, and high-speed |
| Supply Voltage Range | 3 V to 3.6 V |
| Nominal Supply Voltage | 3.3 V |
| Configuration Interface | I2C EEPROM and SMBus |
| Transaction Translator | MultiTRAK configurable MTT |
| Khoảng nhiệt độ hoạt động | 0 C to 70 C |
| Package Type | 36-QFN |
| Package Dimensions | 6 x 6 mm |
| Package Pitch | 0.50 mm |
| Kiểu lắp đặt | Surface mount |
| Trạng thái RoHS | Compliant |
| Số lượng chân | 36 pins |
| Exposed Thermal Pad | Present |
Hướng dẫn cấu hình chân USB2512B-AEZG-TR 0.50 mm
Cấu hình chân cho USB2512B-AEZG-TR (0.50 mm gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho USB2512B-AEZG-TR.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
USB2512B-AEZG-TR phù hợp cho 6 Áp dụngs: Mobile Device USB Expansion, Tablet Docking Accessory, Consumer Media Hub, Industrial Data Acquisition Unit, Portable Diagnostic Equipment, Embedded USB Peripheral Hub.
Mobile Device USB Expansion
The USB2512B-AEZG-TR fits mobile accessories that need two downstream USB connections while preserving full-speed, low-speed, and high-speed device support. Its 2-port USB 2.0 architecture operates at up to 480 Mbps from a 3 V to 3.6 V supply, while the 36-QFN package limits board area in compact products. Place the controller between the upstream host interface and the two downstream connectors, then verify current budget, connector protection, and firmware enumeration behavior in the final device.
Được đề xuất
Tablet Docking Accessory
A tablet dock can use the USB2512B-AEZG-TR to expand one upstream USB 2.0 connection into two downstream ports without implementing hub transaction handling in discrete logic. The device supports a mix of low-speed, full-speed, and high-speed peripherals, up to 480 Mbps, and the configurable MultiTRAK architecture helps match port behavior to the workload. The 6 x 6 mm QFN package leaves space for connectors and protection components in a compact dock PCB.
Được đề xuất
Consumer Media Hub
The USB2512B-AEZG-TR is suitable for consumer media systems that need two USB connections for accessories, storage, or wired control. USB 2.0 high-speed operation supports data rates up to 480 Mbps, while configurable MultiTRAK behavior can accommodate mixed-speed devices in one hub. Use the I2C EEPROM or SMBus configuration path to establish port behavior during startup, and validate power management for externally powered accessories as well as bus-powered devices.
Được đề xuất
Industrial Data Acquisition Unit
Industrial measurement equipment can add two USB ports for sensors, service interfaces, or configuration adapters using the USB2512B-AEZG-TR. The controller's 0 to 70 C operating range fits many indoor industrial environments, and its mixed-speed support allows low-speed control peripherals alongside full-speed or high-speed data devices. Because industrial cabinets may exceed the specified ambient range, evaluate thermal margins and use a current temperature rating or system-level cooling when required.
Được đề xuất
Portable Diagnostic Equipment
Portable diagnostic instruments benefit from the USB2512B-AEZG-TR when they need to expose two service ports while maintaining USB 2.0 compatibility. Its low-power 3.3 V operating class and configurable mixed-speed transaction handling suit embedded instrumentation, while the small QFN package supports dense portable layouts. Engineers should account for ESD exposure, field-accessible connector cables, host-power limits, and enclosure temperatures before releasing the production design.
Được đề xuất
Embedded USB Peripheral Hub
The USB2512B-AEZG-TR can serve as the central USB 2.0 hub in an embedded peripheral platform with two downstream connections. Supporting low-speed, full-speed, and high-speed devices makes it practical for mixed peripherals such as control interfaces, mass storage, and diagnostic adapters. Its I2C EEPROM and SMBus interfaces support configuration, while the manufacturer schematic checklist helps verify the VBUS_DET connection and other hub-specific implementation requirements.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho USB2512B-AEZG-TR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | USB2512-AEZG | USB2512BI-AEZG | USB2512B-AEZG-TR-TR | USB2512B-AEZG-TR-BYC | USB2513B-AEZC |
|---|---|---|---|---|---|---|
| Package | 36-QFN (6x6) | 36-QFN (6x6) | 36-QFN (6x6) | 36-QFN (6x6) | 36-QFN (6x6) | 36-QFN (6x6) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Type | 2-port USB 2.0 hub controller | 2-port USB 2.0 hub controller | 2-port USB 2.0 hub controller | 2-port USB 2.0 hub controller | 2-port USB 2.0 hub controller | 3-port USB 2.0 hub controller |
| USB Standard | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 |
| Maximum USB Data Rate | 480 Mbps | 480 Mbps | 480 Mbps | 480 Mbps | 480 Mbps | 480 Mbps |
| Number of Downstream Ports | 2 | 2 | 2 | 2 | 2 | 3 |
Bảo phân biệt quan trọng
- Newer configurable mixed-speed hub architecture (vsUSB2512-AEZG)
- Two-port function in a compact 6 x 6 mm package (vsUSB2513B-AEZC)
- I2C EEPROM and SMBus configuration support (vsUSB2512-AEZG)
Ghi chú thiết kế
Follow the USB2512B 36-QFN schematic checklist and recommended layout for pin escape routing, exposed-pad thermal vias, and high-speed USB differential pairs. Keep the upstream and downstream differential routes impedance-controlled, avoid unnecessary stubs, and provide a continuous ground reference beneath the exposed pad. Verify connector and ESD-component placement so surge-current paths do not cross sensitive data traces.
Design the 3 V to 3.6 V supply with local high-frequency bypass and verify the current available to the hub and all downstream loads. The part-level information does not establish the exact downstream-current limits, so obtain those values from the manufacturer datasheet before setting a load budget. Account for inrush, externally powered devices, and the difference between bus-powered and self-powered downstream ports.
Do not tie VBUS_DET blindly to 3.3 V without understanding the consequence. Microchip states that tying it directly to 3.3 V is possible but not recommended because the host can no longer use VBUS toggling to force a soft hub reset and reconnection. Implement the recommended detection arrangement so reset behavior remains available when the finished product requires it.
Place configuration memory and its pull-up or pull-down network according to the manufacturer reference circuit, and keep the I2C and SMBus traces away from the USB differential pairs where practical. Confirm signal levels against the 3.3 V supply range and review unused pins in the manufacturer pin-description table. Do not infer connectivity from the 36-QFN outline because exposed-pad and no-connect treatment must match the exact datasheet revision.
Thông tin tuân thủ
RoHS compliance is stated in the component specification. Formal lead-free, halogen-free, REACH, and conflict-minerals declarations were not established by the manufacturer page included in the product information.
