SN54BCT2244, SN74BCT2244
OCTAL BUFFERS AND LINE/MOS DRIVERS
WITH 3-STATE OUTPUTS
SCBS017D – SEPTEMBER 1988 – REVISED MARCH 2003
SN54BCT2244 . . . J OR W PACKAGE
SN74BCT2244 . . . DW, N, OR NS PACKAGE
(TOP VIEW)
Operating Voltage Range of 4.5 V to 5.5 V
State-of-the-Art BiCMOS Design
Significantly Reduces I
CCZ
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
V
CC
Output Ports Have Equivalent 33-Ω Series
Resistors, So No External Resistors Are
Required
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
description/ordering information
The ’BCT2244 devices 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 ’BCT2240 devices and
SN74BCT2241, 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.
SN54BCT2244 . . . FK PACKAGE
(TOP VIEW)
3
2
1
20 19
18
4
5
6
7
8
1Y1
2A4
1Y2
2A3
1Y3
1A2
2Y3
1A3
2Y2
1A4
17
16
15
14
To ensure the high-impedance state during power
up or power down, OE should be tied to V
CC
9 10 11 12 13
through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking
capability of the driver.
The outputs, which are designed to source or sink
up to 12 mA, include 33-Ω series resistors to
reduce overshoot and undershoot.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP – N
Tube
SN74BCT2244N
SN74BCT2244N
Tube
SN74BCT2244DW
SN74BCT2244DWR
SN74BCT2244NSR
SNJ54BCT2244J
SNJ54BCT2244W
SNJ54BCT2244FK
0°C to 70°C
SOIC – DW
BCT2244
Tape and reel
Tape and reel
Tube
SOP – NS
CDIP – J
BCT2244
SNJ54BCT2244J
SNJ54BCT2244W
SNJ54BCT2244FK
–55°C to 125°C
CFP – W
LCCC – FK
Tube
Tube
†
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.
Copyright 2003, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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.
1
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