IN74AC253 Description
TECHNICAL DATA IN74AC253 Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS The IN74AC253 is identical in pinout to the LS/ALS253, HC/HCT253. The device inputs are patible with standard CMOS outputs; with pullup resistors, they are patible with LS/ALS outputs.