Hi all,
We are redesigning some 3U/6U Cards inserted in a chassis where backplane is specified to be driven by ABT logic (74ABT245/244), the problem we are facing is that the FPGA on some cards has 3v3 only IO's tolerant.
Anyone here has got an elegant solution for interfacing +5V backplane (TTL ABT) to 3v3 device such as uP or FPGA's ? We have been looking for transceivers like 74LVC3245 but after carefully reading the datasheet it may not fit the ABT technology especially for driving backplane bus line and capacitive loads...
Thanks in advance for any advice.
Habib