SN74BCT540ANSR Datasheet, PDF (1/17 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
D 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
D P-N-P Inputs Reduce DC Loading
SN54BCT540 . . . J OR W PACKAGE
SN74BCT540A . . . DW, N, OR NS PACKAGE
(TOP VIEW)
SN54BCT540, SN74BCT540A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS012E – JULY 1988 – REVISED MARCH 2003
D Data Flow-Through Pinout (All Inputs on
Opposite Side From Outputs)
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
SN54BCT540 . . . FK PACKAGE
(TOP VIEW)
OE1 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
20 V_CC
19 OE2
18 Y1
17 Y2
16 Y3
15 Y4
14 Y5
13 Y6
12 Y7
11 Y8
A3
3 2 1 20 19
4
18
Y1
A4 ₅
17 ^Y2
A5 6
16 Y3
A6 7
15 Y4
A7 8
14 Y5
9 10 11 12 13
description/ordering information
The SN54BCT540 and SN74BCT540A octal buffers and line drivers are ideal for driving bus lines or buffer
memory-address registers. The devices feature inputs and outputs on opposite sides of the package to facilitate
printed circuit board layout.
The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1 or OE2)
input is high, all corresponding outputs are in the high-impedance state.
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
SN74BCT540AN
SN74BCT540AN
0°C to 70°C
SOIC – DW
Tube
Tape and reel
SN74BCT540ADW
SN74BCT540ADWR
BCT540A
SOP – NS
Tape and reel SN74BCT540ANSR
BCT540A
CDIP – J
Tube
SNJ54BCT540J
SNJ54BCT540J
–55°C to 125°C CFP – W
Tube
SNJ54BCT540W
SNJ54BCT540W
LCCC – FK
Tube
SNJ54BCT540FK
SNJ54BCT540FK
† _{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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