TSB43AB23PDTG4

Controllers Overview

The TSB43AB23PDTG4 is an integrated IEEE 1394a-2000 OHCI PHY and link-layer controller manufactured by Texas Instruments. It provides three independent 1394 ports with separate cable bias (TPBIAS) for implementing multi-port nodes in a cable-based network. The device operates at PCI clock rates up to 33 MHz and supports data transfer speeds of 100 Mbits/s, 200 Mbits/s, and 400 Mbits/s on the 1394 bus. It requires an external 24.576-MHz crystal as a reference for the cable ports. The component is housed in a 128-TQFP package measuring 14x14 mm and operates within a temperature range of 0°C to 70°C.

Controllers Feature Summary

• Supports fully compliant IEEE 1394-1995 and IEEE 1394a-2000 standards along with the Open Host Controller Interface Specification Release 1.1.
• Integrates physical layer transceivers and link-layer control logic to manage asynchronous and isochronous data transfers across three distinct ports.
• Includes hardware enhancements specifically designed to optimize digital video (DV) and MPEG data stream reception and transmission.
• Complies with PCI Bus Power Management Interface Specification supporting D0, D1, D2, and D3 power states.

Controllers Applications

• Implementing high-performance serial bus host controllers in personal computers
• Connecting peripheral devices such as digital cameras and storage drives via Firewire interfaces
• Building multi-port nodes for cable-based 1394 networks

Controllers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and environmental compliance. Confirm that the component meets RoHS3 specifications if required for the assembly process. Check current availability status as older interface components may have limited supply chains or end-of-life designations.

Controllers Selection Notes

Select this component when designing systems requiring multiple independent 1394 ports with dedicated bias circuits. Ensure the design accommodates the 128-TQFP footprint and provides the necessary 24.576-MHz crystal reference. Verify that the system architecture supports the required PCI bus interface and memory-mapped register access defined by the OHCI specification.

Controllers Part Context

This part belongs to the TSB43AB23 family of 1394 host controller solutions from Texas Instruments. It serves as a bridge between the PCI bus and the IEEE 1394 serial bus standard. The device integrates both the PHY layer and the LLC, reducing the need for external discrete transceiver components in multi-port designs.

Controllers Replacement Considerations

Consult the manufacturer's datasheet for officially confirmed substitute part numbers. Verify pin compatibility and electrical characteristics before substituting any alternative components.