74AHC244-Q100; 74AHCT244-Q100

Octal buffer/line driver; 3-state

The 74AHC244-Q100; 74AHCT244-Q100 is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH 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.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features and benefits

Automotive product qualification in accordance with AEC-Q100 (Grade 1)
- Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Wide supply voltage range from 2.0 V to 5.5 V
Balanced propagation delays
All inputs have Schmitt-trigger action
Overvoltage tolerant inputs to 5.5 V
High noise immunity
CMOS low power dissipation
Input levels:
- For 74AHC244-Q100: CMOS level
- For 74AHCT244-Q100: 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
Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
Multiple package options
DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of solder joints

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)	Ψ_th(j-top) (K/W)	R_th(j-c) (K/W)	Package name
74AHC244BQ-Q100	Production	2.0 - 5.5	CMOS	± 8	60	8	low	-40~125	78	9.1	50	DHVQFN20
74AHC244D-Q100	Production	2.0 - 5.5	CMOS	± 8	60	8	low	-40~125	85	27.2	61	SO20
74AHC244PW-Q100	Production	2.0 - 5.5	CMOS	± 8	60	8	low	-40~125	100	4.6	44.7	TSSOP20
74AHCT244BQ-Q100	Production	4.5 - 5.5	TTL	± 8	60	8	low	-40~125	78	9.1	50	DHVQFN20
74AHCT244D-Q100	Production	4.5 - 5.5	TTL	± 8	60	8	low	-40~125	85	27.2	61	SO20
74AHCT244PW-Q100	Production	4.5 - 5.5	TTL	± 8	60	8	low	-40~125	100	4.6	44.7	TSSOP20

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74AHC244BQ-Q100	DHVQFN20 (SOT764-1)	SOT764-1		SOT764-1_115	Active	AHC244	74AHC244BQ-Q100,11 ( 9352 984 33115 )
74AHC244D-Q100	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	SOT163-1_118	Active	74AHC244D	74AHC244D-Q100,118 ( 9352 984 34118 )
74AHC244PW-Q100	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	SOT360-1_118	Active	AHC244	74AHC244PW-Q100,11 ( 9352 984 35118 )
74AHCT244BQ-Q100	DHVQFN20 (SOT764-1)	SOT764-1		SOT764-1_115	Active	AHCT244	74AHCT244BQ-Q100,1 ( 9352 984 36115 )
74AHCT244D-Q100	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	SOT163-1_118	Active	74AHCT244D	74AHCT244D-Q100,11 ( 9352 984 37118 )
74AHCT244PW-Q100	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	SOT360-1_118	Active	AHCT244	74AHCT244PW-Q100,1 ( 9352 984 38118 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74AHC244PW-Q100/AU	935690657118	2018-12-31	2019-06-30	74AHC244PW-Q100

Environmental information

Type number	Orderable part number	Chemical content	Leadfree conversion date
74AHC244BQ-Q100	74AHC244BQ-Q100,11	74AHC244BQ-Q100	Always Pb-free
74AHC244D-Q100	74AHC244D-Q100,118	74AHC244D-Q100	Always Pb-free
74AHC244PW-Q100	74AHC244PW-Q100,11	74AHC244PW-Q100	Always Pb-free
74AHCT244BQ-Q100	74AHCT244BQ-Q100,1	74AHCT244BQ-Q100	Always Pb-free
74AHCT244D-Q100	74AHCT244D-Q100,11	74AHCT244D-Q100	Always Pb-free
74AHCT244PW-Q100	74AHCT244PW-Q100,1	74AHCT244PW-Q100	Always Pb-free

Quality and reliability disclaimer

Documentation (10)

File name	Title	Type	Date
74AHC_AHCT244_Q100	Octal buffer/line driver; 3-state	Data sheet	2023-09-20
AN263	Power considerations when using CMOS and BiCMOS logic devices	Application note	2023-02-07
ahct244	ahct244 IBIS model	IBIS model	2013-04-07
ahc244	ahc244 IBIS model	IBIS model	2013-04-07
Nexperia_Selection_guide_2023	Nexperia Selection Guide 2023	Selection guide	2023-05-10
SOT764-1	plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 4.5 mm x 2.5 mm x 1 mm body	Package information	2022-06-21
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
SOT360-1	plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm body	Package information	2022-06-21
SOT163-1	plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm body	Package information	2022-06-20
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08

Support

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Models

File name	Title	Type	Date
ahct244	ahct244 IBIS model	IBIS model	2013-04-07
ahc244	ahc244 IBIS model	IBIS model	2013-04-07

Ordering, pricing & availability

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