74LCX257

Features:

5V tolerant inputs and outputs
2.3V3.6V V_CC specifications provided
6.0 ns tPD max (V_CC = 3.3V, In Zn), 10 µA I_CC max
Power down high impedance inputs and outputs
Supports live insertion/withdrawal (Note 1)
Implements patented noise/EMI reduction circuitry
Latch-up performance exceeds 500 mA
ESD performance:
Human body model > 2000V
Machine model > 200V




Pinout






Specifications

Symbol	Parameter	Value	Conditions	Units
VCC	Supply Voltage	−0.5 to +7.0		V
VI	DC Input Voltage	−0.5 to +7.0		V
VO	DC Output Voltage	−0.5 to +7.0 −0.5 to VCC +0.5	Output in3-STATE Output in HIGH or LOW State (Note4)	V
IIK	DC Input Diode Current	−50	VI < GND	mA
IOK	DC Output Diode Current	−50 +50	VO < GND VO > VCC	mA
IO	DC Output Source/Sink Current	±50		mA
ICC	DC Supply Current per Supply Pin	±100		mA
IGND	DC Ground Current per Ground Pin	±100		mA
TSTG	Storage Temperature	−65 to +150		°C

Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
74LCX257M	Full Production	RoHS Compliant	$0.172	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	$0.16	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	$0.16	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	$0.16	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	$0.264	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	$0.264	SOP	16	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: LCX257

* Fairchild 1,000 piece Budgetary Pricing

** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product 74LCX257 is available. Click here for more information .

Description

The 74LCX257 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 of the 74LCX257 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.