TUSB3410RHB - USB to UART Controller | Texas Instruments
部品番号: TUSB3410RHB ✓ 生産中TUSB3410RHB 概要
A USB serial-port controller is a type of interface bridge that translates USB traffic into a conventional serial protocol. In the product hierarchy, the TUSB3410 belongs to interface ICs, USB-to-serial converters, communication bridges, and embedded connectivity semiconductors. Its internal microcontroller can configure the USB interface during boot, load code from the host or external memory through I2C, and support firmware-based adaptation of the UART-facing device.
The TUSB3410 family includes 10 KB of ROM for USB boot configuration and 16 KB of RAM available for loading from the host or external onboard memory through I2C. Its USB interface operates at full speed under USB 2.0, while the serial side uses an enhanced UART. The integrated controller reduces the need for an external USB interface microcontroller in legacy serial-port designs.
The 32-pin VFQFN exposed-pad package supports compact PCB layouts, but the thermal pad must be connected to the appropriate ground plane. The manufacturer datasheet identifies TUSB3410 as a USB-to-serial-port controller and documents the device as production data. Package, pin, and electrical details should be checked against the current manufacturer datasheet before layout release.
Typical uses include legacy industrial serial adapters, POS and peripheral interfaces, data-collection equipment, embedded service ports, and USB-to-UART retrofit products. The internal RAM and ROM are especially useful when the adapter needs device identification, configuration, or firmware loaded by the USB host.
A key design consideration is that this device is a protocol controller rather than a complete USB-to-RS-232 electrical transceiver. If the remote endpoint requires RS-232 voltage levels, IrDA signaling, or galvanic isolation, add the appropriate line-driver, receiver, and protection circuitry.
This page combines the manufacturer interface description with package-focused alternatives and engineering guidance for USB-to-UART designs. It helps engineers evaluate firmware loading, exposed-pad layout, external-interface requirements, and the distinction between protocol conversion and physical-layer conversion before selecting a replacement.
ドロップイン代替品: TUSB3410RHB — 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。
TUSB3410IRHB
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
TUSB3410RHBR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TUSB3410RHBT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
TUSB3410RHBRG4
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TUSB3410IRHBT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TUSB3410RHB 仕様
| Device Type | USB to enhanced-UART serial-port controller |
| USB Specification | USB 2.0 full speed |
| Internal Processor | 8052 microcontroller unit |
| Internal ROM | 10 KB |
| Internal RAM | 16 KB |
| Code Loading Interface | I2C |
| ROM Function | USB configuration at boot time |
| ROM Bootloader | I2C bootloader |
| Serial Interface | Enhanced UART |
| 電源電圧 | 3.3 V |
| パッケージ | 32-pin VFQFN with exposed pad |
| 実装タイプ | Surface mount |
TUSB3410RHB 32-pin vfqfn with exposed pad ピン配置ガイド
TUSB3410RHB (32-pin vfqfn with exposed pad パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: TUSB3410RHB.
詳細は データシート をご参照ください。
主な用途
TUSB3410RHB の用途: 6 件s: Legacy Industrial USB-to-Serial Adapter, Point-of-Sale and Peripheral Interface, Data Acquisition and Sensor Gateway, Embedded Service and Configuration Port, USB-to-RS-232 Retrofit Product, Industrial Configuration and Test Fixture.
Legacy Industrial USB-to-Serial Adapter
The TUSB3410RHB fits legacy industrial equipment that exposes an enhanced UART but lacks a native USB port. Place the controller between a full-speed USB 2.0 connector and the equipment's serial interface, allowing a modern host computer to communicate through an existing device protocol. Its integrated 8052 controller, 10 KB ROM, and 16 KB RAM are useful when the adapter must present a custom device identity or execute host-loaded initialization code. The 32-pin VFQFN package also helps reduce connector and PCB space, although designers must implement the manufacturer exposed-pad land pattern correctly.
おすすめ
Point-of-Sale and Peripheral Interface
TUSB3410RHB can provide a USB connection for point-of-sale terminals, receipt printers, scanners, and other serial peripherals that use enhanced-UART signaling. The USB controller handles enumeration and boot configuration, while the internal RAM and ROM provide a platform for device-specific firmware and command handling. Host loading through USB or I2C allows production tools to configure the adapter without relying on a separate programming interface. For installations where equipment noise is significant, keep the high-speed USB routing away from the UART connector and follow the recommended ground and exposed-pad layout.
おすすめ
Data Acquisition and Sensor Gateway
The TUSB3410RHB is suitable for USB-based data-acquisition and sensor gateways that accept an enhanced-UART command stream. The 8052 microcontroller can execute protocol conversion or device-identification firmware, while 16 KB RAM supports loading code from the host or external onboard memory through I2C. This combination is useful for adapting laboratory instruments, environmental monitors, or compact automation modules that already use a UART protocol. The controller does not replace electrical transceivers, so use a suitable driver and receiver when the sensor board expects RS-232 voltage levels rather than logic-level UART.
おすすめ
Embedded Service and Configuration Port
TUSB3410RHB can add a service port to embedded equipment by bridging USB to an internal enhanced-UART channel used for diagnostics, firmware recovery, or configuration. Its boot ROM configures USB before the host begins normal communication, and the internal RAM supports downloadable firmware that can adapt the service protocol to the host. This approach is useful for development boards and field-service equipment where a dedicated USB-to-serial adapter would be inconvenient. Designers should define timeout and recovery behavior so the host cannot interrupt a critical internal power-up or calibration sequence.
おすすめ
USB-to-RS-232 Retrofit Product
The TUSB3410RHB can serve as the protocol-processing section of a USB-to-RS-232 retrofit product. It handles full-speed USB communication and enhanced-UART traffic, while dedicated line-level interface ICs translate the UART signals to RS-232 levels. The internal 8052 controller and code-loading paths allow a compact adapter to emulate a legacy serial device without requiring a separate USB microcontroller. Correct implementation requires careful separation of USB routing and UART routing, protection suited to the external cable environment, and a ground strategy compatible with the connected equipment.
おすすめ
Industrial Configuration and Test Fixture
TUSB3410RHB is well suited to production fixtures and test systems that use a PC to configure or interrogate equipment through a UART link. The host can load adapter code into the 16 KB RAM, while the 10 KB ROM provides boot-time USB configuration and an I2C bootloader for controlled initialization. A fixture can therefore use one USB connection for automated identification, command translation, and firmware updates. Choose the temperature-grade suffix that matches the test environment and validate suspend, resume, and host-removal behavior in the complete fixture because these interactions involve both USB enumeration and embedded UART firmware.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: TUSB3410RHB — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | TUSB3410IRHB | TUSB3410RHBR | TUSB3410RHBT | TUSB3410RHBRG4 | TUSB3410IRHBT |
|---|---|---|---|---|---|---|
| Package | 32-VFQFN with exposed pad | 32-VFQFN with exposed pad - same | 32-VFQFN with exposed pad - same | 32-VFQFN with exposed pad - same | 32-VFQFN with exposed pad - same | 32-VFQFN with exposed pad - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Device Type | USB to enhanced-UART serial-port controller | USB to enhanced-UART serial-port controller | USB to enhanced-UART serial-port controller | USB to enhanced-UART serial-port controller | USB to enhanced-UART serial-port controller | USB to enhanced-UART serial-port controller |
| USB Interface | Full-speed USB 2.0 | Full-speed USB 2.0 | Full-speed USB 2.0 | Full-speed USB 2.0 | Full-speed USB 2.0 | Full-speed USB 2.0 |
| Internal Processor | 8052 microcontroller unit | 8052 microcontroller unit | 8052 microcontroller unit | 8052 microcontroller unit | 8052 microcontroller unit | 8052 microcontroller unit |
| Internal ROM | 10 KB | 10 KB | 10 KB | 10 KB | 10 KB | 10 KB |
| Internal RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Code Loading Interface | I2C | I2C | I2C | I2C | I2C | I2C |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
主な差別化要因
- Integrated configurable controller resources （vs TUSB3410RHBR)
- Full-speed USB-to-enhanced-UART integration （vs TUSB3410IRHB)
- Host or I2C firmware-loading support （vs TUSB3410RHBRG4)
設計ノート
Use the 32-pin VFQFN land pattern and exposed-pad via geometry defined in the Texas Instruments package drawing. Place the input, output, and decoupling capacitors directly beside their associated pins, and provide a continuous ground reference beneath the device. The exposed pad is electrically and thermally important; do not treat it as an unused lead or omit the thermal-via pattern.
Separate the full-speed USB routing from the enhanced-UART traces and external serial connector. Keep USB differential traces routed as a controlled pair with continuous reference-plane support, minimize stub branches, and place ESD protection close to the connector. Route UART signals away from switching supplies and high-current outputs to reduce susceptibility to data errors and ground bounce.
Do not assume that a USB-to-UART protocol controller also performs RS-232, IrDA, or isolation. Confirm the remote equipment's electrical signaling and add the required line-level transceiver, protection, and isolation components. Also verify the exact TUSB3410 orderable suffix because industrial marking and packing code affect procurement and environmental requirements.
コンプライアンス情報
The TUSB3410 family and TUSB3410RHB orderable part are identified by Texas Instruments. Exact environmental and material-compliance declarations for this suffix were not included in the cited listings and must be confirmed on the manufacturer product page or in a declaration record.
