I'm trying to design in the SN74CB3T3245 for the following requirements in my system:
- Vcc= 2.5V
- Bi-directional communication between domain A (2.5/3.3V) and domain B (3.3V/5.0V)
- 8-bits
If Vcc=2.5, the output side is
2.1V~2.5V dependent on current draw, that leaves a small margin for 5V TTL Vih levels (5V CMOS will fail).
Is it possible to add external pullup resistors to 5V?
Our company would like to avoid the TXS/TXB line of translators, but I'm open to any other suggestion. Thanks!