Low-Voltage 10-Bit FET Bus Switch With Internal Pulldown Resistors
This 10-bit FET bus Switch is designed for 3-V to 3.6-V VCC operation and SSTL_2 output-enable (OE) input levels. When OE is low, the 10-bit bus Switch is on, and port A is connected to port B. When OE is high, the Switch is open, and the high-impedance state exists between the two ports. There are 10-k pulldown resistors to ground on the B port. The FET Switch on-state resistance is designed to replace the series terminating resistor in the SSTL_2 data path.
This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.
By Texas Instruments
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