No, MAX3373E–MAX3376E/MAX3378E/MAX3379E and MAX3390E–MAX3393E, these parts cannot talk to itself.
When two parts are planned to interface each other, one cannot talk to another one. Similarly, for a "loop back" connection on the same side of the level shifter, the logic levels would not be adequate to meet the min/max specifications. The VOH minimum is lower than the VIH maximum specification.
The input threshold values (VIH & VIL)are not compliant to receive the output threshold levels(VOH & VOL), even both of them shares the same power levels.
A sample calculation is given below for both logic-side and VCC side power supply rails of 3.3V.
|
|
VL |
VCC |
|
|
3.3 |
3.3 |
|
VIH |
3.1 |
2.9 |
|
VIL |
0.15 |
0.15 |
|
VOH |
2.211 |
2.211 |
|
VOL |
0.4 |
1.4 |