SN74ABT244A-EP
OCTAL BUFFER/DRIVER
WITH 3-STATE OUTPUTS
www.ti.com
SGBS312A–JULY 2006–REVISED JULY 2006
FEATURES
•
Controlled Baseline
•
Typical VOLP (Output Ground Bounce) <1 V at
VCC = 5 V, TA = 25°C
– One Assembly/Test Site, One Fabrication
Site
•
•
High-Drive Outputs (–24-mA IOH, 48-mA IOL)
•
•
Extended Temperature Performance of –55°C
to 125°C
Packaged in Shrink Small-Outline (DB)
Package
Enhanced Diminishing Manufacturing
Sources (DMS) Support
DB PACKAGE
(TOP VIEW)
•
•
•
Enhanced Product-Change Notification
(1)
1
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
Qualification Pedigree
2
State-of-the-Art EPIC-IIB™ BiCMOS Design
Significantly Reduces Power Dissipation
3
4
•
•
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
5
6
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
7
8
9
(1) Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
temperature cycle, autoclave or unbiased HAST,
10
xxxx
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
justifying use of this component beyond specified
performance and environmental limits.
DESCRIPTION
This octal buffer and line driver is designed specifically to improve both the performance and density of 3-state
memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Together with the
SN54ABT240, SN74ABT240A, SN54ABT241, and SN74ABT241A, these devices provide the choice of selected
combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE) inputs, and
complementary OE and OE inputs.
The SN74ABT244A is organized as two 4-bit buffers/line drivers with separate OE inputs. When OE is low, the
device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the
high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN74ABT244 is characterized for operation over the full military temperature range of –55°C to 125°C.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
–55°C to 125°C
SSOP – DB
Tape and reel
SN74ABT244AMDBREP
ABT244AMEP
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC-IIB is a trademark of Texas Intruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.