family was created to enable up or down voltage translation
with only one power rail
. The family has over voltage tolerant inputs that allows down translation from up to 5.5V to the Vcc level which can be as low as 1.8V. This family has optimized and balanced output drive of (7mA at 3.3V Vcc) which reduces line reflection, over/under-shoot, and eliminates the need for a damping resistor.
The family also has a lowered switching threshold that allows it to translate up to the Vcc level that can be as high as 5.5V.
View the PDF document for more information.
Originally published by Texas Instruments at www.ti.com as "LV1T Family of Single Supply Translators".