SN74AHC541-Q1 Datasheet, PDF (1/10 Pages) Texas Instruments – OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS

SN74AHC541ĆQ1
OCTAL BUFFER/DRIVER
WITH 3ĆSTATE OUTPUTS
SCLS603A − DECEMBER 2004 − REVISED APRIL 2008
D Qualified for Automotive Applications
D Operating Range 2-V to 5.5-V V_CC
D Latch-Up Performance Exceeds 250 mA Per
JESD 17
description/ordering information
The SN74AHC541 octal buffer/driver is ideal for
driving bus lines or buffer memory address
registers. This device features inputs and outputs
on opposite sides of the package to facilitate
printed circuit board layout.
DW OR PW 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
The 3-state control gate is a two-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. The outputs provide noninverted
data when they are not 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
−40°C to 125°C
SOIC − DW
TSSOP − PW
Tape and reel
Tape and reel
SN74AHC541QDWRQ1
SN74AHC541QPWRQ1
AHC541Q
AHC541Q
† _{For the most current package and ordering information, see the Package Option Addendum at the end of this}
document, or see the TI web site at http://www.ti.com.
‡ _{Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.}
FUNCTION TABLE
(each buffer/driver)
INPUTS
OE1 OE2 A
OUTPUT
Y
L
L
L
L
L
L
H
H
H
X
X
Z
X
H
X
Z
logic diagram (positive logic)
1
OE1
19
OE2
A1 ²
18
Y1
To Seven Other Channels
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.
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Copyright  2008, Texas Instruments Incorporated
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