Other Parts Discussed in Thread: SN74LV126A
Hello,
This might be basic, but could you tell me the device internal circuit.
Is there a clamp diode or any resistors on the output pin?
When we tried live insertion using LVC126A, the signal voltage that connected output pin (steady 3.3V) was dropped to 2.7~2.8V during internal VCC off.
We would like to know why the voltage is dropped.
According to "Live Insertion" documents (SDYA012) Figure 1, there is exist D3 diode on the output pin.
So we consider the voltage drop caused by this diode.
Best Regards,
Matsushita