TUSB5152PZ

Controllers Overview

The TUSB5152PZ is a USB to dual-serial and single-parallel port controller manufactured by Texas Instruments. It integrates a 5-port USB hub, two enhanced UARTs, an IEEE-1284 parallel port interface, and an internal 8052 microcontroller with 6K ROM and 16K RAM. The device supports full-speed (12 Mbps) and low-speed USB operations compliant with USB 1.1 specifications. It operates from a 6-MHz crystal input, utilizing an on-chip PLL to generate necessary clock frequencies. Power consumption is specified at 3.3V and 5V supply levels, with a dedicated power-down mode available for energy efficiency.

Controllers Feature Summary

• Integrates a 5-port USB hub with one upstream and five downstream ports supporting full and low-speed data rates.
• Includes dual-enhanced UARTs featuring programmable flow control, automatic RS485 transceiver management, and software-selectable baud rates.
• Provides an IEEE-1284 bidirectional parallel port interface compatible with SPP, ECP, and EPP modes.
• Contains an internal 8052 microcontroller with loadable code space and master I2C controller capabilities.

Controllers Applications

• Implementation of multi-port expansion hubs combining serial and parallel connectivity.
• RS485 bus systems requiring integrated transceiver control and USB bridging.
• Quad UART implementations utilizing the internal microcontroller for data handling.

Controllers Procurement Notes

Verify the specific package configuration against the datasheet before procurement. Confirm that the ordering suffix aligns with the required voltage operation and pinout definitions. Ensure compatibility with the host system's USB protocol requirements and check for any specific boot loader configurations needed for firmware loading via the I2C or USB interface.

Controllers Selection Notes

Select this component when a design requires simultaneous USB, serial, and parallel connectivity within a single integrated circuit. Consider the internal 8052 MCU resources if custom firmware logic is needed for peripheral management. Evaluate the 100-pin TQFP package constraints regarding board space and thermal dissipation for the intended operating environment.

Controllers Part Context

This controller belongs to the TUSB series of USB bridge devices designed by Texas Instruments. It serves as a comprehensive solution for converting USB host connections into multiple legacy interfaces. The device simplifies system architecture by consolidating hub functionality, serial communication, and parallel port support into one chip, reducing the component count required for complex I/O expansion designs.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence carefully if considering alternative controllers, particularly regarding the internal MCU architecture and pin compatibility.

Controllers FAQ

What is the maximum data rate supported by the TUSB5152?

The device supports a 12-Mbps data rate, which corresponds to full-speed USB operation as defined in the USB 1.1 specification.

How does the device handle UART flow control?

The dual-enhanced UARTs support both hardware and software flow control, including programmable Xon/Xoff characters and automatic RTS/CTS signaling.

Can the internal microcontroller be reprogrammed?

Yes, the 16K RAM used for code space is totally loadable from the host computer or via the I2C port using the built-in boot loader.