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)	Nr 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	SOT163-1_623	Active	74ABT244D	74ABT244D,623 ( 9350 275 10623 )
74ABT244PW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	SOT360-1_118	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74ABT244D	SO20 (SOT163-1)	SOT163-1	WAVE_BG-BD-1	SOT163-1_602	Withdrawn / End-of-life	74ABT244D	74ABT244D,602 ( 9350 275 10602 )
74ABT244PW	TSSOP20 (SOT360-1)	SOT360-1	SSOP-TSSOP-VSO-WAVE	SOT360-1_112	Withdrawn / End-of-life	ABT244	74ABT244PW,112 ( 9351 764 20112 )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

Environmental information

Type number	Orderable part number	Chemical content	RoHS	RHF-indicator	Leadfree conversion date
74ABT244D	74ABT244D,623	74ABT244D			week 4, 2004
74ABT244PW	74ABT244PW,118	74ABT244PW			week 7, 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
74ABT244D	74ABT244D,602	74ABT244D			week 4, 2004
74ABT244PW	74ABT244PW,112	74ABT244PW			week 7, 2005

Quality and reliability disclaimer

Documentation (9)

File name	Title	Type	Date
74ABT244	Octal buffer/line driver; 3-state	Data sheet	2021-07-08
AN263	Power considerations when using CMOS and BiCMOS logic devices	Application note	2023-02-07
abt244	abt244 IBIS model	IBIS model	2013-04-07
Nexperia_Selection_guide_2023	Nexperia Selection Guide 2023	Selection guide	2023-05-10
abt	abt Spice model	SPICE model	2013-05-06
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
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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