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SN74AS240A データシート(PDF) 1 Page - Texas Instruments

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部品番号 SN74AS240A
部品情報  OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

SN74AS240A データシート(HTML) 1 Page - Texas Instruments

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SN54ALS240A, SN54AS240A, SN74ALS240A, SN74AS240A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SDAS214E – DECEMBER 1982 – REVISED AUGUST 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D 3-State Outputs Drive Bus Lines or Buffer
Memory Address Registers
D pnp Inputs Reduce dc Loading
description/ordering information
These
octal
buffers/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. When these devices are used with
the ’ALS241, ’AS241A, ’ALS244, and ’AS244A
devices, the circuit designer has a 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.
The -1 version of SN74ALS240A is identical to the
standard version, except that the recommended
maximum IOL for the -1 version is 48 mA. There is
no -1 version of the SN54ALS240A.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SN74ALS240AN
SN74ALS240AN
PDIP – N
Tube
SN74ALS240A-1N
SN74ALS240A-1N
SN74AS240AN
SN74AS240AN
Tube
SN74ALS240ADW
ALS240A
Tape and reel
SN74ALS240ADWR
ALS240A
SOIC
DW
Tube
SN74ALS240A-1DW
ALS240A 1
0
°C to 70°C
SOIC – DW
Tape and reel
SN74ALS240A-1DWR
ALS240A-1
Tube
SN74AS240ADW
AS240A
Tape and reel
SN74AS240ADWR
AS240A
SOP
NS
Tape and reel
SN74ALS240ANSR
ALS240A
SOP – NS
Tape and reel
SN74ALS240A-1NSR
ALS240A-1
SSOP
DB
Tape and reel
SN74ALS240ADBR
G240A
SSOP – DB
Tape and reel
SN74ALS240A-1DBR
G240A-1
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
 2002, Texas Instruments Incorporated
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.
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.
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11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
SN54ALS240A, SN54AS240A ...J OR W PACKAGE
SN74ALS240A . . . DB, DW, N, OR NS PACKAGE
SN74AS240A . . . DW OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
910 11 12 13
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5
6
7
8
18
17
16
15
14
1Y1
2A4
1Y2
2A3
1Y3
1A2
2Y3
1A3
2Y2
1A4
SN54ALS240A, SN54AS240A . . . FK PACKAGE
(TOP VIEW)
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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