The LCX257 is a quad 2-input multiplexer with 3-STATE outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (non inverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the common Output Enable (OE#) input, allowing the outputs to interface directly with bus-oriented systems.

The 74LCX257 is fabricated with advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation.

• Fairchild 1,000 piece Budgetary Pricing
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• Top mark packaging information for product 74LCX257 is available.

Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
74LCX257M	Full Production	RoHS Compliant	$0.184	SOIC	16	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: LCX257
74LCX257MTC	Full Production	RoHS Compliant	$0.172	TSSOP	16	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: LCX257
74LCX257MTCX	Full Production	RoHS Compliant	$0.172	TSSOP	16	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: LCX257
74LCX257MX	Full Production	RoHS Compliant	$0.17	SOIC	16	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: LCX257
74LCX257SJ	Full Production	RoHS Compliant	$0.315	SOP	16	RAIL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: LCX257
74LCX257SJX	Full Production	RoHS Compliant	$0.315	SOP	16	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: LCX257