74ABT244

Octal buffer/line driver; 3-state

The 74ABT244 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. This device is fully specified for partial power down applications using I_OFF. The I_OFF circuitry disables the output, preventing the potentially damaging backflow current through the device when it is powered down.

Features and benefits

Supply voltage range from 4.5 to 5.5 V
Octal bus interface
3-State buffers
BiCMOS high speed and output drive
Output capability: +64 mA/–32 mA
Direct interface with TTL levels
Power-up 3-State
Live insertion capability
I_OFF circuitry provides partial Power-down mode operation
Latch-up protection exceeds 500 mA per JESD78 class II level A
ESD protection:
- HBM JESD22-A114F exceeds 2000 V
- MM JESD22-A115-A exceeds 200 V
Specified from -40 °C to +85 °C

Parametrics

Type number	Product status	V_CC (V)	Logic switching levels	Output drive capability (mA)	f_max (MHz)	No of bits	Power dissipation considerations	T_amb (°C)	R_th(j-a) (K/W)	R_th(j-c) (K/W)	Package name
74ABT244D	Production	4.5 - 5.5	TTL	-32 / +64	100	8	medium	-40~85	85	61	SO20
74ABT244PW	Production	4.5 - 5.5	TTL	-32 / +64	100	8	medium	-40~85	100	44.6	TSSOP20

Package

Type number	Package	Package information	Reflow-/Wave soldering	Packing	Status	Marking	Orderable part number, (Ordering code (12NC))
74ABT244D	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	Reel 13" Q1/T1	Active	74ABT244D	74ABT244D,623 ( 9350 275 10623 )
74ABT244PW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	ABT244	74ABT244PW,118 ( 9351 764 20118 )

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))
74ABT244D	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	Tube	Discontinued / End-of-life	74ABT244D	74ABT244D,602 ( 9350 275 10602 )
74ABT244PW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	Bulk Pack	Discontinued / End-of-life	ABT244	74ABT244PW,112 ( 9351 764 20112 )

Discontinuation information

Type number	Orderable part number, (Ordering code (12NC))	Last time buy date	Last time delivery date	Replacement product	Status	Comments
74ABT244D	935027510602	2021-12-31	2022-06-30	74ABT244D
74ABT244PW	935176420112	2021-12-31	2022-06-30	74ABT244PW

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	Leadfree conversion date	EFR	IFR	MTBF (hour)	MSL	MSL leadfree
74ABT244D	74ABT244D,623	74ABT244D		week 4, 2004	50.4	0.8	1.25E9	1	1
74ABT244PW	74ABT244PW,118	74ABT244PW		week 7, 2005	50.4	0.8	1.25E9	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
74ABT244D	74ABT244D,602	74ABT244D		week 4, 2004	50.4	0.8	1.25E9	1	1
74ABT244PW	74ABT244PW,112	74ABT244PW		week 7, 2005	50.4	0.8	1.25E9	1	1

Quality and reliability disclaimer

Documentation (8)

File name	Title	Type	Date
74ABT244	Octal buffer/line driver; 3-state	Data sheet	2021-07-08
abt244	abt244 IBIS model	IBIS model	2013-04-07
Nexperia_Selection_guide_2022	Nexperia Selection Guide 2022	Selection guide	2022-01-05
abt	abt Spice model	SPICE model	2013-05-06
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	2020-04-21
SSOP-TSSOP-VSO-WAVE	Footprint for wave soldering	Wave soldering	2009-10-08
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	2020-04-21
WAVE_BG-BD-1	Wave soldering profile	Wave soldering	2021-09-08

Support

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Models

File name	Title	Type	Date
abt244	abt244 IBIS model	IBIS model	2013-04-07
abt	abt Spice model	SPICE model	2013-05-06

Ordering, pricing & availability

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