54ACT253 Dual 4-Input Multiplexer with TRI-STATE Outputs(???????????????????????)
54ACT253D Dual 4-Input Multiplexer with TRI-STATE Outputs
54ACT253DMQB 4-Input Digital Multiplexer
54ACT253F Dual 4-Input Multiplexer with TRI-STATE Outputs
54ACT253FMQB 4-Input Digital Multiplexer
54ACT253L Dual 4-Input Multiplexer with TRI-STATE Outputs
54ACT253LMQB 4-Input Digital Multiplexer
54ACT253MDA Dual 4-Input Multiplexer with TRI-STATE Outputs