TSB43AB23PGEG4

Controllers Overview

The TSB43AB23PGEG4 is an integrated IEEE 1394a-2000 Open Host Controller Interface (OHCI) PHY and link-layer controller manufactured by Texas Instruments. It provides three independent 1394 ports with separate cable bias, supporting data transfer rates of 100 Mbit/s, 200 Mbit/s, and 400 Mbit/s between the PCI bus and the 1394 network. The device operates on a single 3.3-V supply voltage and utilizes a 128-pin Thin Quad Flatpack (TQFP) package measuring 14 mm by 14 mm. It supports PCI bus master bursting at up to 33 MHz and includes deep FIFOs to buffer data against latency variations.

Controllers Feature Summary

• Supports IEEE 1394-1995 and 1394a-2000 standards with full OHCI Release 1.1 compliance
• Integrates three physical layer ports with differential line transceivers for cable-based networks
• Includes hardware enhancements for digital video and MPEG stream timestamp insertion and header stripping
• Features advanced power management capabilities compliant with PC 2001 Design Guide requirements

Controllers Applications

• IEEE 1394 host controller implementations in personal computers
• Digital video recording and playback devices requiring high-speed serial bus connectivity
• Multimedia peripherals utilizing SBP-2 protocol for mass storage applications

Controllers Procurement Notes

Verify the specific ordering suffix PGEG4 to confirm the package type and lead-free status. Confirm that the component meets RoHS3 directives as indicated by the G4 suffix. Ensure compatibility with the required 128-TQFP footprint during PCB layout planning.

Controllers Selection Notes

Select this component when designing systems requiring multiple 1394 ports within a single integrated solution. Consider the 128-pin TQFP package constraints for board space. Evaluate the need for external termination resistors and crystal oscillators based on the system design requirements.

Controllers Part Context

This part belongs to the TSB43AB23 family of 1394 host controllers. The PGEG4 suffix denotes the 128-TQFP package variant with green molding compound and lead-free terminals. It serves as a bridge between PCI buses and high-speed serial 1394 networks.

Controllers Replacement Considerations

TSB43AB23PDTG4 is a documented alternative offering identical functionality in a different 128-TQFP package configuration.