TUSB6250PFCG4

Specialized Overview

The TUSB6250PFCG4 is an 8051-based CMOS microcontroller integrating a USB 2.0 and ATA/ATAPI interface controller with DMA capabilities. It features 13 GPIO ports, three timers/counters, PWM functionality, and an I2C interface. The device includes 8K bytes of ROM, 256 bytes of on-chip RAM, and 1K byte of XRAM. This component serves as a bridge for connecting USB devices to parallel ATA storage systems.

Specialized Feature Summary

• Integrates USB 2.0 host controller with ATA/ATAPI interface support
• Includes built-in Direct Memory Access (DMA) for efficient data transfer
• Provides multiple peripheral interfaces including I2C and PWM

Specialized Applications

• USB to Parallel ATA bridge controllers
• External hard drive enclosures
• Portable storage devices

Specialized Procurement Notes

Verify the specific suffix PFCG4 against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure compatibility with required development tools such as Keil PK51 or CA51 compilers for firmware implementation.

Specialized Selection Notes

Select this component when a single-chip solution is required for USB-to-ATAPI bridging. Consider the integrated DMA and 8051 core architecture for applications needing direct memory access without external bus controllers. Verify pinout compatibility with existing PCB layouts.

Specialized Part Context

This part belongs to the Texas Instruments TUSB series of USB interface controllers. It is designed specifically for applications requiring high-speed USB connectivity to legacy parallel ATA storage devices, simplifying system design by combining control logic and interface drivers in one package.

Specialized Replacement Considerations

Check for newer revisions within the TUSB6250 family. Verify if alternative bridge controllers from other manufacturers offer compatible pinouts and register sets for direct replacement in existing designs.