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SNJ54AC240FK Datasheet Preview

SNJ54AC240FK Datasheet

OCTAL BUFFERS/DRIVERS

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D 2-V to 6-V VCC Operation
D Inputs Accept Voltages to 6 V
D Max tpd of 6.5 ns at 5 V
description/ordering information
These octal buffers and line drivers are designed
specifically to improve the performance and
density of 3-state memory address drivers, clock
drivers, and bus-oriented receivers and
transmitters.
The ’AC240 devices are organized as two 4-bit
buffers/drivers with separate output-enable (OE)
inputs. When OE is low, the device passes
inverted data from the A inputs to the Y outputs.
When OE is high, the outputs are in the
high-impedance state.
To ensure the high-impedance state during power
up or power down, OE should be tied to VCC
through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking
capability of the driver.
SN54AC240, SN74AC240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS512E − JUNE 1995 − REVISED OCTOBER 2003
SN54AC240 . . . J OR W PACKAGE
SN74AC240 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
1OE 1
1A1 2
2Y4 3
1A2 4
2Y3 5
1A3 6
2Y2 7
1A4 8
2Y1 9
GND 10
20 VCC
19 2OE
18 1Y1
17 2A4
16 1Y2
15 2A3
14 1Y3
13 2A2
12 1Y4
11 2A1
SN54AC240 . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
1A2 4
18 1Y1
2Y3 5
17 2A4
1A3 6
16 1Y2
2Y2 7
15 2A3
1A4 8
14 1Y3
9 10 11 12 13
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube
SN74AC240N
SN74AC240N
SOIC − DW
Tube
Tape and reel
SN74AC240DW
SN74AC240DWR
AC240
−40°C to 85°C
SOP − NS
SSOP − DB
Tape and reel
Tape and reel
SN74AC240NSR
SN74AC240DBR
AC240
AC240
TSSOP − PW
CDIP − J
Tube
Tape and reel
Tube
SN74AC240PW
SN74AC240PWR
SNJ54AC240J
AC240
SNJ54AC240J
−55°C to 125°C CFP − W
Tube
SNJ54AC240W
SNJ54AC240W
LCCC − FK
Tube
SNJ54AC240FK
SNJ54AC240FK
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.
1




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SNJ54AC240FK Datasheet Preview

SNJ54AC240FK Datasheet

OCTAL BUFFERS/DRIVERS

No Preview Available !

SN54AC240, SN74AC240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS512E − JUNE 1995 − REVISED OCTOBER 2003
logic diagram (positive logic)
FUNCTION TABLE
(each buffer)
INPUTS
OE
A
OUTPUT
Y
L
H
L
L
L
H
H
X
Z
1
1OE
1A1 2
4
1A2
6
1A3
8
1A4
18 1Y1
16 1Y2
14 1Y3
12 1Y4
19
2OE
11
2A1
2A2 13
15
2A3
17
2A4
9
2Y1
7
2Y2
5
2Y3
3
2Y4
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SNJ54AC240FK
Description OCTAL BUFFERS/DRIVERS
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