SN74ALS2240 Datasheet, PDF (1/5 Pages) Texas Instruments – OCTAL BUFFER AND LINE DRIVER/MOS DRIVER WITH 3-STATE OUTPUTS

SN74ALS2240
OCTAL BUFFER AND LINE DRIVER/MOS DRIVER
WITH 3-STATE OUTPUTS
SDAS268A – DECEMBER 1994 – REVISED NOVEMBER 1997
D Bidirectional Quadruple-Bus Transceivers
for Driving MOS Devices
D I/O Ports Have 25-Ω Series Resistors, So
No External Resistors Are Required
D Package Options Include Plastic
Small-Outline (DW) Package and Standard
Plastic (N) 300-mil DIPs
description
This octal buffer and line driver/MOS driver is
designed to drive the capacitive inputs of MOS
devices and to improve the performance and
density of 3-state memory address drivers, clock
drivers, and bus-oriented receivers and
transmitters. This device features high fan-out
and improved fan-in.
DW OR N PACKAGE
(TOP VIEW)
1OE 1
1A1 2
2Y4 3
1A2 4
2Y3 5
1A3 6
2Y2 7
1A4 8
2Y1 9
GND ¹⁰
20 V_CC
19 2OE
18 1Y1
17 2A4
16 1Y2
15 2A3
14 1Y3
13 2A2
12 1Y4
11 _2A1
The SN74ALS2240 is characterized for operation
from 0°C to 70°C.
FUNCTION TABLE
(each buffer)
INPUTS
OE
A
OUTPUT
Y
L
H
L
L
L
H
H
X
Z
logic symbol^†
1
1OE
EN
2
1A1
4
1A2
6
1A3
8
1A4
18
1Y1
16
1Y2
14
1Y3
12
1Y4
19
2OE
EN
11
2A1
13
2A2
15
2A3
17
2A4
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.}
9
2Y1
7
2Y2
5
2Y3
3
2Y4
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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.
Copyright © 1997, Texas Instruments Incorporated
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