SN54ABT2244A_16 Datasheet, PDF (1/20 Pages) Texas Instruments – OCTAL BUFFERS AND LINE/MOS DRIVERS WITH 3-STATE OUTPUTS

SN54ABT2244A, SN74ABT2244A
OCTAL BUFFERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS106E – JANUARY 1991 – REVISED MAY 1997
D Output Ports Have Equivalent 25-Ω Series
Resistors, So No External Resistors Are
Required
D ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
D State-of-the-Art EPIC-ΙΙB™ BiCMOS Design
Significantly Reduces Power Dissipation
D Typical V_OLP (Output Ground Bounce) < 1 V
at V_CC = 5 V, T_A = 25°C
D High-Impedance State During Power Up
and Power Down
D Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK),
Plastic (N) and Ceramic (J) DIPs, and
Ceramic Flat (W) Packages
description
These octal buffers and line drivers are 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 SN54ABT2240,
SN74ABT2240A, and ’ABT2241, 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. These devices
feature high fan-out and improved fan-in.
SN54ABT2244A . . . J OR W PACKAGE
SN74ABT2244A . . . DB, DW, N, OR PW PACKAGE
(TOP VIEW)
1OE ₁
1A1 ₂
2Y4 3
1A2 4
2Y3 5
1A3 6
2Y2 7
1A4 8
2Y1 9
GND 10
20 ^V_CC
19 ^2OE
18 1Y1
17 2A4
16 1Y2
15 2A3
14 1Y3
13 2A2
12 1Y4
11 2A1
SN54ABT2244A . . . FK PACKAGE
(TOP VIEW)
1A2
3 2 1 20 19
4
18
1Y1
2Y3 ₅
17 ^2A4
1A3 6
16 1Y2
2Y2 7
15 2A3
1A4 8
14 1Y3
9 10 11 12 13
The outputs, which are designed to sink up to 12 mA, include equivalent 25-Ω series resistors to reduce
overshoot and undershoot.
When V_CC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 2.1 V, OE should be tied to V_CC through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54ABT2244A is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABT2244A is characterized for operation from –40°C to 85°C.
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-ΙΙB is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 1997, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1