TSB43AB23PDT

Controllers Overview

The Texas Instruments TSB43AB23PDT is an integrated IEEE 1394a-2000 Open Host Controller Interface (OHCI) PHY and link-layer controller. It connects a 33-MHz PCI bus to a 1394 bus, supporting data transfer rates of 100 Mbit/s, 200 Mbit/s, and 400 Mbit/s. The device features three independent 1394 ports with separate cable bias terminals. It operates within a supply voltage range of 3.0 V to 3.6 V and supports power management states D0 through D3. The component is housed in a 128-pin Thin Quad Flatpack (TQFP) package measuring 14 mm by 14 mm.

Controllers Feature Summary

• Supports full compliance with the 1394 Open Host Controller Interface Specification Release 1.1 and IEEE Std 1394a-2000 standards.
• Integrates three physical layer ports with dedicated cable bias circuits for simultaneous multi-port connectivity.
• Includes hardware enhancements for digital video and MPEG data streams, featuring automatic timestamp insertion and packet header stripping.
• Provides deep FIFO buffers and physical write posting to optimize performance for SBP-2 devices.

Controllers Applications

• IEEE 1394 host controllers requiring multiple port connectivity
• Digital video recording and playback systems
• High-speed peripheral interconnect solutions

Controllers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature rating. Confirm RoHS compliance status as indicated in current manufacturer datasheets. Ensure compatibility with existing PCI bus architectures before procurement.

Controllers Selection Notes

Select this component when designing systems requiring three independent 1394 ports on a single chip. Verify that the application requires support for S400 speeds and low-power sleep modes. Ensure the design accommodates the required external 24.576-MHz crystal reference and termination resistors.

Controllers Part Context

The TSB43AB23 belongs to the TSB43 series of 1394 host controller solutions from Texas Instruments. It serves as a bridge between PCI-based processors and high-speed serial buses. This specific model integrates both the logical link control and the physical transceiver functions into a single CMOS device.

Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's obsolescence notices or cross-reference guides for potential alternatives if this component is discontinued.