74AHC126; 74AHCT126

Quad buffer/line driver; 3-state

The 74AHC126; 74AHCT126 is a quad buffer/line driver with 3-state outputs controlled by the output enable inputs (nOE). A LOW on nOE causes the outputs to assume a high-impedance OFF-state. Inputs are overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.

Features and benefits

Balanced propagation delays
All inputs have Schmitt-trigger action
Inputs accept voltages higher than V_CC
Input levels:
- For 74AHC126: CMOS level
- For 74AHCT126: TTL level
ESD protection:
- HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 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)	f_max (MHz)	Nr of bits	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	R_th(j-c) (K/W)	Package name
74AHC126BQ	Production	2.0 - 5.5	CMOS	± 8	60	4	low	-40~125	103	71	DHVQFN14
74AHC126D	Production	2.0 - 5.5	CMOS	± 8	60	4	low	-40~125	105	63	SO14
74AHC126PW	Production	2.0 - 5.5	CMOS	± 8	60	4	low	-40~125	138	64.3	TSSOP14
74AHCT126BQ	Production	4.5 - 5.5	TTL	± 8	60	4	low	-40~125	103	71	DHVQFN14
74AHCT126D	Production	4.5 - 5.5	TTL	± 8	60	4	low	-40~125	105	63	SO14
74AHCT126PW	Production	4.5 - 5.5	TTL	± 8	60	4	low	-40~125	138	64.3	TSSOP14

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74AHC126BQ	DHVQFN14 (SOT762-1)	SOT762-1		SOT762-1_115	Active	AC126	74AHC126BQ,115 ( 9352 896 21115 )
74AHC126D	SO14 (SOT108-1)	SOT108-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT108-1_118	Active	74AHC126D	74AHC126D,118 ( 9352 627 68118 )
74AHC126PW	TSSOP14 (SOT402-1)	SOT402-1	SSOP-TSSOP-VSO-WAVE	SOT402-1_118	Active	AHC126	74AHC126PW,118 ( 9352 627 69118 )
74AHCT126BQ	DHVQFN14 (SOT762-1)	SOT762-1		SOT762-1_115	Active	AT126	74AHCT126BQ,115 ( 9352 896 22115 )
74AHCT126D	SO14 (SOT108-1)	SOT108-1	SO-SOJ-REFLOW SO-SOJ-WAVE	SOT108-1_118	Active	74AHCT126D	74AHCT126D,118 ( 9352 627 66118 )
74AHCT126PW	TSSOP14 (SOT402-1)	SOT402-1	SSOP-TSSOP-VSO-WAVE	SOT402-1_118	Active	AHCT126	74AHCT126PW,118 ( 9352 627 67118 )

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))
74AHCT126PW	TSSOP14 (SOT402-1)	SOT402-1	SSOP-TSSOP-VSO-WAVE	SOT402-1_112	Withdrawn / End-of-life	AHCT126	74AHCT126PW,112 ( 9352 627 67112 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product
74AHC126D	935262768112	2021-12-31	2022-06-30	74AHC126D
74AHC126PW	935262769112	2021-12-31	2022-06-30	74AHC126PW
74AHCT126D	935262766112	2018-12-31	2019-06-30	74AHCT126D
74AHCT126PW	935262767112	2021-12-31	2022-06-30	74AHCT126PW

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74AHC126BQ	74AHC126BQ,115	74AHC126BQ	Always Pb-free
74AHC126D	74AHC126D,118	74AHC126D	week 32, 2004
74AHC126PW	74AHC126PW,118	74AHC126PW	week 10, 2005
74AHCT126BQ	74AHCT126BQ,115	74AHCT126BQ	Always Pb-free
74AHCT126D	74AHCT126D,118	74AHCT126D	week 32, 2004
74AHCT126PW	74AHCT126PW,118	74AHCT126PW	week 10, 2005

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-indicator	Leadfree conversion date
74AHCT126PW	74AHCT126PW,112	74AHCT126PW			week 10, 2005

Quality and reliability disclaimer

Documentation (10)

File name	Title	Type	Date
74AHC_AHCT126	Quad buffer/line driver; 3-state	Data sheet	2024-02-29
ahc126	ahc126 IBIS model	IBIS model	2013-04-07
ahct126	ahct126 IBIS model	IBIS model	2013-04-07
SOT762-1	plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 14 terminals; 0.5 mm pitch; 2.5 x 3 x 1 mm body	Package information	2023-04-05
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SOT402-1	plastic, thin shrink small outline package; 14 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.2 mm body	Package information	2023-11-07
SO-SOJ-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SO-SOJ-REFLOW	Footprint for reflow soldering	Reflow soldering	2009-10-08
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08
SOT108-1	plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm body	Package information	2023-11-07

Support

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Models

File name	Title	Type	Date
ahc126	ahc126 IBIS model	IBIS model	2013-04-07
ahct126	ahct126 IBIS model	IBIS model	2013-04-07

Ordering, pricing & availability

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