74LV138

3-to-8 line decoder/demultiplexer; inverting

The 74LV138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The 74LVC138A features three enable inputs (Y1, Y2 and E3). Every output will be HIGH unless Y1 and Y2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion of the 74LV138 to a 1-of-32 (5 to 32 lines) decoder with just four 74LV138 ICs and one inverter. The 74LV138 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. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess V_CC.

Features and benefits

Wide supply voltage range from 1.0 to 5.5 V
Optimized for low voltage applications: 1.0 V to 3.6 V
CMOS low power dissipation
Direct interface with TTL levels
Typical output ground bounce < 0.8 V at V_CC = 3.3 V and T_amb = 25 °C
Typical HIGH-level output voltage (V_OH) undershoot: > 2 V at V_CC = 3.3 V and T_amb = 25 °C
Demultiplexing capability
Multiple input enable for easy expansion
Ideal for memory chip select decoding
Active LOW mutually exclusive outputs
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards
- JESD8-7 (1.65 V to 1.95 V)
- JESD8-5 (2.3 V to 2.7 V)
- JESD8C (2.7 V to 3.6 V)
- JESD36 (4.5 V to 5.5 V)
ESD protection:
- HBM JESD22-A114E exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Parametrics

Type number	Product status	V_CC (V)	Logic switching levels	Output drive capability (mA)	t_pd (ns)	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name
74LV138BQ	Production	1.0 - 5.5	TTL	± 12	12	low	-40~125	83	6.5	50	DHVQFN16
74LV138D	Production	1.0 - 5.5	TTL	± 12	12	low	-40~125	81	4.5	39.5	SO16
74LV138PW	Production	1.0 - 5.5	TTL	± 12	12	low	-40~125	115	2.2	43	TSSOP16

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74LV138BQ	DHVQFN16 (SOT763-1)	SOT763-1		Reel 7” Q1/T1 or Q2/T3	Active	LV138	74LV138BQ,115 ( 9352 855 77115 )
74LV138D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1	Active	74LV138D	74LV138D,118 ( 9350 631 90118 )
74LV138PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	LV138	74LV138PW,118 ( 9351 743 90118 )

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74LV138D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	Bulk Pack	Discontinued / End-of-life	74LV138D	74LV138D,112 ( 9350 631 90112 )
74LV138PW	TSSOP16 (SOT403-1)	SOT403-1	SSOP-TSSOP-VSO-WAVE	Bulk Pack	Discontinued / End-of-life	LV138	74LV138PW,112 ( 9351 743 90112 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74LV138D	935063190112	2021-12-31	2022-06-30	74LV138D
74LV138PW	935174390112	2021-12-31	2022-06-30	74LV138PW

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	Leadfree conversion date	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74LV138BQ	74LV138BQ,115	74LV138BQ	Always Pb-free	39.3	1.3	7.69E8	1	1
74LV138D	74LV138D,118	74LV138D	week 6, 2004	39.3	1.3	7.69E8	1	1
74LV138PW	74LV138PW,118	74LV138PW	week 17, 2005	39.3	1.3	7.69E8	1	1

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type number	Orderable part number	Chemical content	RoHS / RHF	Leadfree conversion date	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74LV138D	74LV138D,112	74LV138D		week 6, 2004	39.3	1.3	7.69E8	1	1
74LV138PW	74LV138PW,112	74LV138PW		week 17, 2005	39.3	1.3	7.69E8	1	1

Quality and reliability disclaimer

Documentation (10)

File name	Title	Type	Date
74LV138	3-to-8 line decoder/demultiplexer; inverting	Data sheet	2021-07-22
Nexperia_Selection_guide_2022	Nexperia Selection Guide 2022	Selection guide	2022-01-05
lv	lv Spice model	SPICE model	2013-05-06
SOT763-1	plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm body	Package information	2020-04-21
SO-SOJ-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SO-SOJ-REFLOW	Footprint for reflow soldering	Reflow soldering	2009-10-08
SOT109-1	plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body	Package information	2021-01-06
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08
SOT403-1	plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.1 mm body	Package information	2020-04-21
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08

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Models

File name	Title	Type	Date
lv	lv Spice model	SPICE model	2013-05-06

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