TPD4S1394 Firewire ESD Clamp The Texas Instruments TPD4S1394 firewire ESD clamp provides a robust system level ESD solution for the IEEE.1394 port along with a live insertion detection mechanism for high-speed lines interfacing a low-voltage, ESD sensitive core chipset. The TI TPD4S1394 firewire ESD clamp protects and monitors up to two differential input pairs. The optimized line capacitance allows the TI TPD4S1394 to protect the data lines with data rate in excess of 1.6 GHz without degrading signal integrity. The TPD4S1394 firewire ESD clamp is designed for IEEE 1394 live insertion protection.