Quad 2-Input Data Selector/Multiplexer With 3-State Outputs

The IN74ACT257 is identical in pinout to the LS/ALS257, HC/HCT257. The IN74ACT257 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. This device selects a (4-bit) nibble from either the A or B inputs as determined by the Select input. The nibble is presented at the outputs in noninverted from when the Output Enable pin is at a low level. A high level on the Output Enable pin switches the outputs into the high-impedance state. By Integral Corp.
IN74ACT257 's PackagesIN74ACT257 's pdf datasheet

IN74ACT257 Pinout, Pinouts
IN74ACT257 pinout,Pin out
This is one package pinout of IN74ACT257,If you need more pinouts please download IN74ACT257's pdf datasheet.

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