SN54BCT240_16 Datasheet, PDF (1/19 Pages) Texas Instruments – OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

D Operating Voltage Range of 4.5 V to 5.5 V
D State-of-the-Art BiCMOS Design
Significantly Reduces I_CCZ
SN54BCT240 . . . J OR W PACKAGE
SN74BCT240 . . . DB, DW, N, OR NS 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
SN54BCT240, SN74BCT240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS004F – OCTOBER 1987 – REVISED MARCH 2003
D 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
SN54BCT240 . . . 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
description/ordering information
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
’BCT241 and ’BCT244 devices, these devices provide the choice of selected combinations of inverting and
noninverting outputs, symmetrical OE (active-low output-enable) inputs, and complementary OE and OE
inputs. These devices feature high fan-out and improved fan-in.
To ensure the high-impedance state during power up or power down, 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.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74BCT240N
SN74BCT240N
0°C to 70°C
SOIC – DW
Tube
Tape and reel
SN74BCT240DW
SN74BCT240DWR
BCT240
SOP – NS
Tape and reel SN74BCT240NSR
BCT240
SSOP – DB
Tape and reel SN74BCT240DBR
BT240
CDIP – J
Tube
SNJ54BCT240J
SNJ54BCT240J
–55°C to 125°C CFP – W
Tube
SNJ54BCT240W
SNJ54BCT240W
LCCC – FK
Tube
SNJ54BCT240FK
SNJ54BCT240FK
† _{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.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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.
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