Eight-bit fixed-direction level translator with tri-state outputs

The SN74LV8T540 contains eight inverters with

3-state outputs. The 540 function has the same

functionality as the 240 function and has a flowthrough

pinout. The active low output enable pins

(/OE1 and /OE2) control all eight channels, and are

configured so that both must be low for the outputs to

be active.

The input is designed with a reduced threshold circuit

to support up translation when the supply voltage

is larger than the input voltage. Additionally, the 5V

tolerant input pins enable down translation when the

input voltage is larger than the supply voltage. The

output level is always referenced to the supply voltage

(VCC) and supports 1.8V, 2.5V, 3.3V, and 5V CMOS

levels.