74AHC139D

Dual 2-to-4 line decoder/demultiplexer

The 74AHC139; 74AHCT139 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7-A.

The 74AHC139; 74AHCT139 is a high-speed, dual 2-to-4 line decoder/demultiplexer. This device has two independent decoders, each accepting two binary weighted inputs (nA0 and nA1) and providing four mutually exclusive active LOW outputs (nY0 to nY3). Each decoder has an active LOW enable input (nE). When nE is HIGH, every output is forced HIGH. The enable input can be used as the data input for a 1-to-4 demultiplexer application.

The 74AHC139; 74AHCT139 is identical to the HEF4556 of the HE4000B family.

Alternatives

74AHC139D-Q100

Automotive qualified

Dual 2-to-4 line decoder/demultiplexer

Buy from Nexperia

SKU	Stock*	MOQ	Price per unit**	Quantity

Buy from distributors

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

Seller	SKU	Stock	MOQ		1	10	100	1,000	10,000	Purchase

* Stock values are subject to change
** Displayed price per unit is based on small quantity orders
*** Authorized resellers for overstock, mature, and discontinued products which are warranted for reliability by the reseller, no longer by Nexperia

Features and benefits

Balanced propagation delays
All inputs have Schmitt-trigger actions
Inputs accept voltages higher than V_CC
Input levels:
- For 74AHC139: CMOS level
- For 74AHCT139: TTL level
ESD protection:
- HBM EIA/JESD22-A114E exceeds 2000 V
- MM EIA/JESD22-A115-A exceeds 200 V
- CDM EIA/JESD22-C101C exceeds 1000 V
Multiple package options
Specified from -40 Cel to +85 Cel and from -40 Cel to +125 Cel

Applications

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
74AHC139D	Production	2.0 - 5.5	CMOS	± 8	3.9	low	-40~125	90	8.6	49	SO16

Package

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Package information	Reflow-/Wave soldering	Packing
74AHC139D	74AHC139D,118 ( 9352 635 65118 )	Active	74AHC139D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1

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

Type number	Orderable part number, (Ordering code (12NC))	Status	Marking	Package	Package information	Reflow-/Wave soldering	Packing
74AHC139D	74AHC139D,112 ( 9352 635 65112 )	Discontinued / End-of-life	74AHC139D	SO16 (SOT109-1)	SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE	Bulk Pack

Discontinuation information

Type number	Orderable part number	Ordering code	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74AHC139D	74AHC139D,112	935263565112	2021-12-31	2022-06-30	74AHC139D	Version withdrawal

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74AHC139D	74AHC139D,118	74AHC139D		29.9	0.9	1.11E9	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	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74AHC139D	74AHC139D,112	74AHC139D		29.9	0.9	1.11E9	1	1

Quality and reliability disclaimer

Series

74AHC139; 74AHCT139 - Dual 2-to-4 line decoder/demultiplexer

Documentation (6)

File name	Title	Type	Date
74AHC_AHCT139	Dual 2-to-4 line decoder/demultiplexer	Data sheet	2017-07-20
AN11106	Pin FMEA for AHC/AHCT family	Application note	2019-01-09
ahc139	ahc139 IBIS model	IBIS model	2013-04-07
SO-SOJ-REFLOW	Footprint for reflow soldering	Reflow soldering	2009-10-08
SO-SOJ-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08

Support

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Models

File name	Title	Type	Date
ahc139	ahc139 IBIS model	IBIS model	2013-04-07

Ordering, pricing & availability

Type number	Orderable part number	Ordering code (12NC)	Packing	Buy online
74AHC139D	74AHC139D,118	935263565118	Reel 13" Q1/T1	Order product

Sample

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Sample orders normally take 2-4 days for delivery.

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