Mar 17, 2004 #1 X xjimmy Guest Hello, I want to use the 74hc245 IC , same buffer at 5V interface and 3.3V interface. The idea is OK?
Hello, I want to use the 74hc245 IC , same buffer at 5V interface and 3.3V interface. The idea is OK?
Mar 17, 2004 #2 P Paul Burke Guest xjimmy wrote: Hello, I want to use the 74hc245 IC , same buffer at 5V interface and 3.3V interface. The idea is OK? Click to expand... 74LCX245 - run it at 3V3, and it will stand the overvoltage on the input and give an adequate output for the 5V side. I had to use these with a mixed- volatge MSP430 design. I REALLY wish they would put 5V toerant outputs on those beasts! Paul Burke
xjimmy wrote: Hello, I want to use the 74hc245 IC , same buffer at 5V interface and 3.3V interface. The idea is OK? Click to expand... 74LCX245 - run it at 3V3, and it will stand the overvoltage on the input and give an adequate output for the 5V side. I had to use these with a mixed- volatge MSP430 design. I REALLY wish they would put 5V toerant outputs on those beasts! Paul Burke
