Buffer IC

The SN7406N from Texas Instruments is an open-collector buffer that can be used as a logic level shifter or a high current logic interface driver.

The 74HC244 IC is an 8-bit buffer or line driver IC having 3 state outputs. The IC can either be used as two 4 bit buffers or just one 8-bit buffer. The IC has a wide range of input voltage and has a very less current consumption.  

4049 Pin Configuration Pin Number Pin Name I/O Description