TECHNICAL DATA IN74AC253 Dual 4-Input Data Selec.
IK Semiconductor
IN74AC253 - Dual 4-1 Data Selector/Multiplexer
TECHNICAL DATA IN74AC253 Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS The IN74AC253 is identical in pinou.