SN54BCT125A Datasheet, PDF (1/14 Pages) Texas Instruments – QUADRUPLE BUS BUFFER GATES 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
SN54BCT125A . . . J OR W PACKAGE
SN74BCT125A . . . D, N, OR NS PACKAGE
(TOP VIEW)
1OE 1
1A 2
1Y 3
2OE 4
2A 5
2Y 6
GND 7
14 V_CC
13 4OE
12 4A
11 4Y
10 3OE
9 3A
8 3Y
SN54BCT125A, SN74BCT125A
QUADRUPLE BUS BUFFER GATES
WITH 3-STATE OUTPUTS
SCBS032F – SEPTEMBER 1988 – REVISED MARCH 2003
D 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
SN54BCT125A . . . FK PACKAGE
(TOP VIEW)
1Y
NC
2OE
NC
2A
3 2 1 20 19
4
18
5
17
6
16
7
15
8
14
9 10 11 12 13
4A
NC
4Y
NC
3OE
NC – No internal connection
description/ordering information
The ’BCT125A bus buffers feature independent line drivers with 3-state outputs. Each output is disabled when
the associated output-enable (OE) input is high.
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
SN74BCT125AN
SN74BCT125AN
0°C to 70°C
SOIC – D
Tube
Tape and reel
SN74BCT125AD
SN74BCT125ADR
BCT125A
SOP – NS
Tape and reel SN74BCT125ANSR
BCT125A
CDIP – J
Tube
SNJ54BCT125AJ
SNJ54BCT125AJ
–55°C to 125°C CFP – W
Tube
SNJ54BCT125AW
SNJ54BCT125AW
LCCC – FK
Tube
SNJ54BCT125AFK
SNJ54BCT125AFK
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are}
available at www.ti.com/sc/package.
FUNCTION TABLE
(each buffer)
INPUTS
OE
A
OUTPUT
Y
L
H
H
L
L
L
H
X
Z
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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