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74LVC257A: Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state (Based on PIP 74LVC257A)

The 74LVC257A is a quad 2-input multiplexer with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input (pin S). The data inputs from source 0 (pins 1I0 to 4I0) are selected when pin S is LOW and the data inputs from source 1 (pins 1I1 to 4I1) are selected when pin S is HIGH. Data appears at the outputs (pins 1Y to 4Y) in true (non-inverting) form from the selected inputs. The device is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to pin S. The outputs are forced to a high-impedance OFF-state when pin OE is HIGH.

Inputs can be driven from either 3.3 V or 5.0 V devices. When disabled, up to 5.5 V can be applied to the outputs. These features allow the use of these devices as translators in mixed 3.3 V and 5 V applications.

74LVC257A: Product Block Diagram

Outline 3d SOT338-1

Data Sheets (1)

Application Notes (5)

Package Information (4)

Packing (3)

Supporting Information (4)

IBIS Model

• lvc257a IBIS model (REV 1.0) ibs LVC257A 4/7/2013

SPICE model

• lvc Spice model (REV 1.0) ZIP LVC 5/7/2013

Ordering Information

Package Information

Product ID	Package Description	Outline Version	Reflow/Wave Soldering	Packing	Product Status	Part NumberOrdering code(12NC)	Marking	Chemical Content	RoHS / Pb Free / RHF	LeadFree Conversion Date	EFR	IFR(FIT)	MTBF(hour)	MSL	MSL LF
74LVC257APW		SOT403-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74LVC257APW,118 (9352 606 80118)	LVC257A	74LVC257APW		week 10, 2005	123.8	3.87	2.58E8	1	1
				Bulk Pack	Active	74LVC257APW,112 (9352 606 80112)	LVC257A	74LVC257APW		week 10, 2005	123.8	3.87	2.58E8	1	1
74LVC257ABQ		SOT763-1		Reel 7" Q1/T1	Active	74LVC257ABQ,115 (9352 751 74115)	VC257A	74LVC257ABQ		Always Pb-free	123.8	3.87	2.58E8	1	1
74LVC257AD		SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1	Active	74LVC257AD,118 (9352 606 78118)	74LVC257AD	74LVC257AD		week 35, 2004	123.8	3.87	2.58E8	1	1
				Bulk Pack	Active	74LVC257AD,112 (9352 606 78112)	74LVC257AD	74LVC257AD		week 35, 2004	123.8	3.87	2.58E8	1	1
74LVC257ADB		SOT338-1	SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74LVC257ADB,118 (9352 606 79118)	VC257A	74LVC257ADB		week 12, 2005	123.8	3.87	2.58E8	1	1
				Bulk Pack	Active	74LVC257ADB,112 (9352 606 79112)	VC257A	74LVC257ADB		week 12, 2005	123.8	3.87	2.58E8	1	1