IN74ACT257 - IK Semiconductor

IN74ACT257 Quad 2-1 Data Selector/Multiplexer

TECHNICAL DATA IN74ACT257 Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS 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 input.

Features

w w .d e e h s a t a . u t4 PIN 16 =VCC PIN 8 = GND m o c L X=don’t care Z = high-impedance state A0-A3,B0-B3=the levels of the respective Nibble Inputs 1 www.DataSheet4U.com IN74ACT257 MAXIMUM RATINGS
* Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL
* Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case f.