problem with 74LS244 buffer
I have made a circuit using AT89C4051 and some of the inputs and outputs i have buffered using LS244.i needed to have some delay for buffer,so i used a simple RC delay circuit with value C=10uF and R=10K and connected the output across resistance to enable pins of buffer.
now the problem arises here.according to simple equation time constant(Tc)=RC=100ms , the buffer should get enabled only after 100ms BUT the voltage at enable pin comes down to 1.15V and stays there..after some time when i keep on checking with probe then it comes down to 0.5V i m not able to understand it. please give me some suggestions
also its affecting voltage level of other buffer port pins???