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Texas Instruments TUSB5052PZ
- Part No.:
- TUSB5052PZ
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 100-LQFP
- Datasheet:
-
TUSB5052PZ.pdf
- Description:
- IC USB HUB CNTRL 5-PORT 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,575
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Product details
Overview
TUSB5052PZ from Texas Instruments is a USB 1.1-compliant 5-port hub controller with dual enhanced UARTs and an integrated 8052 MCU, supporting 12-Mbps full-speed USB operation, 50–460.8-kbaud software-selectable UART rates, and 3.3/5-V dual-supply operation. It serves as a bridge between USB hosts and legacy serial peripherals in industrial gateways and embedded communication modules.
For engineers reviewing the TUSB5052PZ datasheet, TUSB5052PZ pinout, TUSB5052PZ application, or TUSB5052PZ equivalent, key selection criteria include its integrated 5-port hub topology, dual UART flow-control modes (Xon/Xoff, auto-RTS/CTS), RS485 transceiver control capability, and 100-pin TQFP package with GPIO, I²C, and DMA support.
Technical Context
The TUSB5052PZ implements a USB Serial Interface Engine (SIE) compliant with USB Specification Revision 1.1, managing upstream host communication and downstream port arbitration via an internal 5-port hub. Its dual UARTs feature independent baud-rate generators derived from an on-chip PLL fed by a 6-MHz crystal.
Control logic resides in an embedded 8052 core with 16K×8 loadable RAM, 6K×8 ROM boot loader, and 2K×8 synchronous SRAM for endpoint buffers and EDBs. The device supports external microcontroller interfacing via Port-0/Port-2 address/data bus mapping and provides four-channel DMA for bulk USB/UART transfers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB 1.1 full-speed (12 Mbps); enables interoperability with legacy PC hosts and embedded USB hosts without USB 2.0 hardware. |
| UART Count & Type | Dual enhanced UARTs with hardware/software flow control, RS485 echo/non-echo mode, and 5–8-bit data framing - supports two independent serial device interfaces. |
| MCU Core | Integrated 8052 microcontroller with 16K×8 RAM (host-loadable), 6K×8 ROM boot loader, and 2K×8 SRAM for EDB/buffer storage - eliminates need for external firmware memory. |
| Supply Voltage | 3.3-V VCC core supply + 5-V VCCS I/O supply - allows direct interfacing with both 3.3-V logic and 5-V peripherals (e.g., RS232/RS485 transceivers). |
| Crystal Frequency | 6-MHz fundamental-mode crystal input (X1/X2) - generates internal 48/24 MHz USB clocks and 7.384615 MHz UART baud base via on-chip PLL. |
| Package | 100-pin TQFP (14 mm × 14 mm, 0.5-mm pitch) - provides full signal access including 8 GPIO pins, I²C master (SCL/SDA), 4 LED drivers, and 5 USB port differential pairs. |
| DMA Channels | Four independent DMA channels - offloads CPU during high-throughput USB ↔ UART bulk transfers, reducing firmware overhead and latency. |
Pinout & Package
Package: 100-pin TQFP (14 mm × 14 mm, 0.5-mm pitch), RoHS-compliant, lead-free, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DP0/DM0 | Upstream USB differential pair | Connects to host controller; requires 90-Ω differential impedance routing and series 27-Ω termination resistors near the IC. |
| DP1–DP5 / DM1–DM5 | Downstream USB differential pairs (Ports 1–5) | Each pair drives one USB device port; unused ports may be left unconnected or grounded per design requirements. |
| PWRO1–PWRO4 | Port power-on control outputs | Active-high CMOS signals enabling VBUS to downstream ports; used for per-port power management and overcurrent recovery. |
| 1-SIN / 1-SOUT / 2-SIN / 2-SOUT | UART1/UART2 serial I/O | CMOS-level transmit/receive lines; require external level-shifting (e.g., MAX3232) for RS232 or RS485 physical layer interfacing. |
| SCL / SDA | I²C master interface | Supports external EEPROM or configuration devices; SCL is open-drain, SDA is bidirectional with internal pullup - compatible with standard I²C timing. |
| LED-1–LED-4 | Hub port status indicators | CMOS outputs driving dual-color LEDs (red/green) to show port power, connection, and suspend state per Table 3−3 in datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 5-port USB hub | Enables single-host-to-multiple-peripheral expansion without external hub ICs; supports full- and low-speed devices simultaneously. |
| RS485 automatic transceiver control | Hardware-driven DE/RE signal generation eliminates firmware polling or timer-based control, ensuring deterministic half-duplex bus turnaround. |
| Programmable clock output (CLKO) | Provides configurable frequency output (derived from PLL/dividers) for synchronizing external logic or ADC sampling clocks. |
| Remote wake-up via WAKEUP pin | Allows suspended USB system to resume on external event (e.g., modem ring indicator or sensor interrupt), reducing system power consumption. |
| External microcontroller interface mode | Enables replacement of internal 8052 with external MCU via Port-0/Port-2 bus mapping - supports custom firmware while retaining USB/hub functionality. |
Applications
| Industrial Serial Gateway | Multi-Protocol Test Fixture |
|---|---|
Use Scenario: Connecting legacy RS232/RS485 field devices (PLCs, sensors, meters) to a USB-enabled HMI or edge controller in factory automation. IC Role / Device Role / Timing Role: USB-to-dual-serial bridge with per-port power control and RS485 direction management - acts as protocol translator and physical layer adapter. Use Value: Eliminates need for separate USB hub + dual UART ICs; reduces BOM count and PCB area while enabling hot-plug detection and suspend/resume for energy-efficient operation. | Use Scenario: Automated functional test station validating UART-based modules (GPS, Bluetooth, modem) using a single USB-connected host PC. IC Role / Device Role / Timing Role: Simultaneous dual-serial stimulus/response engine with programmable baud rates, flow control, and loopback diagnostics - serves as programmable serial traffic generator/analyzer. Use Value: Enables concurrent testing of two DUTs with independent timing and error injection (break, parity, framing), accelerating validation throughput without host CPU intervention. |
| Embedded Communication Module | USB Peripheral Expansion Dock |
Use Scenario: Compact embedded module adding USB connectivity and dual serial ports to a headless ARM/Linux system (e.g., Raspberry Pi Compute Module). IC Role / Device Role / Timing Role: Offloads USB protocol handling and UART buffering from host processor; manages USB enumeration, endpoint setup, and DMA-coordinated data movement. Use Value: Frees host CPU cycles for application tasks; supports Linux CDC ACM driver out-of-box; enables plug-and-play serial port assignment (/dev/ttyACM0, /dev/ttyACM1). | Use Scenario: Desktop dock providing USB hub expansion plus two isolated RS232 ports for connecting legacy peripherals (barcode scanners, receipt printers) to modern laptops. IC Role / Device Role / Timing Role: Central hub controller with integrated UARTs and GPIO-controlled power switching - coordinates upstream bandwidth allocation and downstream port power sequencing. Use Value: Reduces component count vs discrete hub + UART solution; supports per-port overcurrent protection and LED status feedback without additional logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-to-serial bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CP2102N-A02-GQFN20 | Single UART, QFN-20 package, no integrated hub; USB 2.0 full-speed only; lacks RS485 auto-control and GPIO expansion. | Targeted at cost-sensitive single-serial-port designs; unsuitable for multi-port or RS485 bus applications. | Select when only one serial interface is needed and board space is constrained; not a functional substitute for TUSB5052PZ's hub+UART dual capability. |
| FT4232HL | Quad UART, QFP-64 package, USB 2.0 Hi-Speed; includes FIFOs and clock outputs but no integrated hub or RS485 control logic. | Designed for high-bandwidth multi-serial applications (e.g., quad GPS receivers); requires external hub for port expansion. | Choose for higher UART count and USB 2.0 bandwidth; requires additional hub IC and external RS485 direction logic if needed. |
Compared with CP2102N-A02-GQFN20 and FT4232HL, the TUSB5052PZ uniquely integrates a 5-port USB hub with dual enhanced UARTs and hardware RS485 transceiver control - making it the only option that consolidates hub expansion, dual serial bridging, and bus-direction management into a single 100-pin TQFP device.
Availability
TUSB5052PZ is available at Aetrix Electronics and suitable for industrial serial gateways, embedded communication modules, USB peripheral expansion docks, and multi-protocol test fixtures requiring stable component supply and long-term manufacturability.
Supply support for TUSB5052PZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The TUSB5052PZ belongs to TI's USB bridge controller product line, designed specifically to simplify integration of legacy serial interfaces into USB-based systems while maintaining robust electrical compliance and firmware flexibility.
FAQ
What USB specification does the TUSB5052PZ comply with?
The TUSB5052PZ complies fully with USB Specification Revision 1.1 for full-speed operation at 12 Mbps. It implements a complete USB Serial Interface Engine (SIE), supports suspend/resume, and meets all electrical signaling requirements for upstream host connection and downstream port arbitration. The TUSB5052PZ does not support USB 2.0 Hi-Speed (480 Mbps) or later revisions.
Does the TUSB5052PZ support RS485 bus transceiver control?
Yes, the TUSB5052PZ provides dedicated hardware-assisted RS485 transceiver control for both UART channels. It automatically asserts and de-asserts direction-enable (DE) and receiver-enable (RE) signals based on transmit activity and echo configuration - eliminating firmware timing loops and ensuring reliable half-duplex bus turnaround. This function is documented in Section 2.2 and Figure 7−3 of the datasheet.
What are the power supply requirements for the TUSB5052PZ?
The TUSB5052PZ requires two independent supplies: 3.3 V ±5% on VCC (pins 7, 13, 36, 67, 88) for core logic, and 5 V ±5% on VCCS (pins 38, 55, 76) for I/O buffers, USB transceivers, and LED drivers. Both rails must be decoupled with 0.1-µF ceramic capacitors placed near each supply pin. The TUSB5052PZ does not operate from a single 3.3-V or 5-V rail alone.
Can the internal 8052 MCU of the TUSB5052PZ be replaced with an external microcontroller?
Yes, the TUSB5052PZ supports external microcontroller mode via TEST[2:0] = 110b (TEST0 = GND). In this mode, the internal 8052 is disabled, and external address/data bus signals (P0/P2) connect to pins P1.[7:0], P3.0, P3.1, P3.3, and P3.4 per Table 3−4. The USB hub and SIE remain fully functional under external firmware control - enabling custom protocol stacks or real-time OS integration.
What is the maximum UART baud rate supported by the TUSB5052PZ?
The TUSB5052PZ supports UART baud rates from 50 bps up to 460,800 bps, programmable via DLL/DLH register writes. The baud base is derived from a 7.384615-MHz clock generated by the on-chip PLL, allowing precise division for standard rates (e.g., 9600, 115200, 230400). Rates above 460.8 kbaud are not supported due to internal counter limits and timing constraints documented in Table 7−4.
TUSB5052PZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 100-LQFP
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Hub Controller
- Interface:
- USB
- Standards:
- USB 2.0
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- 45mA
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 100-LQFP (14x14)
- Grade:
- -
- Qualification:
- -
TUSB5052PZ FAQ
1.How can I place an order for TUSB5052PZ through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB5052PZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TUSB5052PZ reliable?
The price and inventory of TUSB5052PZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB5052PZ is usually 5 days.
3.What payment methods are accepted for TUSB5052PZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB5052PZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB5052PZ?
TUSB5052PZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB5052PZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TUSB5052PZ?
For technical support, including TUSB5052PZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB5052PZ requirements.
6.How does Aetrix verify that TUSB5052PZ is sourced from the original manufacturer or authorized distributors?
All TUSB5052PZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TUSB5052PZ meets industry standards.
7.What is the process for return or replacement of TUSB5052PZ?
All TUSB5052PZ units undergo pre-shipment inspection (PSI). If there is an issue with TUSB5052PZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TUSB5052PZ part is unused and in its original packaging.
Return procedure for TUSB5052PZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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