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74LVC138A: 3-to-8 line decoder/demultiplexer; inverting (Based on PIP 74LVC138A)

The 74LVC138A is a 3-to-8 line decoder/demultiplexer. It accepts three binary weighted address inputs (A0, A1 and A2) and, when enabled, provides eight mutually exclusive outputs (Y0 to Y7) that are LOW when selected.

There are three enable inputs: two active LOW (E1 and E2) and one active HIGH (E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH.

This multiple enable function allows easy parallel expansion of the device to a 1-of-32 (5 lines to 32 lines) decoder with just four 74LVC138A devices and one inverter. The 74LVC138A can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Unused enable inputs must be permanently tied to their appropriate active HIGH or LOW state

74LVC138A: Product Block Diagram

Outline 3d SOT338-1

Data Sheets (1)

Application Notes (5)

Selector Guides (2)

Package Information (4)

Packing (3)

Supporting Information (4)

IBIS Model

• lvc138a IBIS model (REV 1.0) ibs LVC138A 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
74LVC138AD		SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1	Active	74LVC138AD,118 (9352 607 45118)	74LVC138AD	74LVC138AD		week 12, 2005	123.8	3.87	2.58E8	1	1
				Bulk Pack	Active	74LVC138AD,112 (9352 607 45112)	74LVC138AD	74LVC138AD		week 12, 2005	123.8	3.87	2.58E8	1	1
74LVC138APW		SOT403-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74LVC138APW,118 (9352 607 47118)	LVC138A	74LVC138APW		week 10, 2005	123.8	3.87	2.58E8	1	1
				Bulk Pack	Active	74LVC138APW,112 (9352 607 47112)	LVC138A	74LVC138APW		week 10, 2005	123.8	3.87	2.58E8	1	1
74LVC138ADB		SOT338-1	SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74LVC138ADB,118 (9352 607 46118)	VC138A	74LVC138ADB		week 13, 2005	123.8	3.87	2.58E8	1	1
				Bulk Pack	Active	74LVC138ADB,112 (9352 607 46112)	VC138A	74LVC138ADB		week 13, 2005	123.8	3.87	2.58E8	1	1
74LVC138ABQ		SOT763-1		Reel 7" Q1/T1	Active	74LVC138ABQ,115 (9352 733 34115)	VC138A	74LVC138ABQ		Always Pb-free	123.8	3.87	2.58E8	1	1