TSB43AB21A

The TSB43AB21A is an OHCI 1.1 and IEEE 1394a compliant link layer controller designed for high-performance serial bus applications. This device integrates the PHY/link-layer controller for IEEE 1394a, supporting data rates of 100 Mbps, 200 Mbps, and 400 Mbps on its single cable port.

Key features include full compliance with IEEE Std 1394-1995 and IEEE Std 1394a-2000, ensuring interoperability with FireWire and i.LINK implementations. It supports advanced IEEE Std 1394a-2000 features such as connection debounce, arbitration acceleration, and port disable/suspend/resume functionalities. The controller is designed with power-down features for battery-powered applications, including automatic device power down during suspend and PCI power management.

With 1.8-V core logic, the TSB43AB21A offers universal PCI interfaces compatible with both 3.3-V and 5-V PCI signaling environments. It supports PCI burst transfers and deep FIFOs to manage host latency. The device is fabricated in an advanced low-power CMOS process and comes in a 128-pin TQFP package measuring 16 mm x 16 mm.

This controller is suitable for systems requiring high-speed data transfer and robust connectivity, leveraging the capabilities of the IEEE 1394 standard.