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74AC11240NT 数据表(PDF) 1 Page - Texas Instruments

部件名 74AC11240NT
功能描述  OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
Download  14 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

74AC11240NT 数据表(HTML) 1 Page - Texas Instruments

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74AC11240
OCTAL BUFFER/LINE DRIVER
WITH 3-STATE OUTPUTS
SCAS448A – MAY 1987 – REVISED APRIL 1996
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Flow-Through Architecture Optimizes
PCB Layout
D Center-Pin VCC and GND Configurations
Minimize High-Speed Switching Noise
D EPICt (Enhanced-Performance Implanted
CMOS) 1-
mm Process
D 500-mA Typical Latch-Up Immunity at
125
°C
D Package Options Include Plastic
Small-Outline (DW) and Shrink
Small-Outline (DB) Packages, and Standard
Plastic 300-mil DIPs (NT)
description
This octal buffer/line driver is designed specifically
to improve both the performance and density of
3-state memory address drivers, clock drivers,
and bus-oriented receivers and transmitters. This
device
provides
inverting
outputs
and
symmetrical
active-low
output-enable
(OE)
inputs. This device features high fan-out and
improved fan-in.
The 74AC11240 is organized as two 4-bit buffers/line drivers with separate 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.
The 74AC11240 is characterized for operation from –40
°C to 85°C.
FUNCTION TABLE
(each buffer)
INPUTS
OUTPUT
OE
A
OUTPUT
Y
L
H
L
L
LH
H
X
Z
logic symbol
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
2A4
2A3
2A2
2A1
2OE
1A4
1A3
1A2
1A1
1OE
2Y4
2Y3
2Y2
2Y1
1Y4
1Y3
1Y2
1Y1
12
11
10
9
4
3
2
1
14
15
16
17
13
EN
20
21
22
23
24
EN
1
1
Copyright
© 1996, 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.
EPIC is a trademark of Texas Instruments Incorporated.
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9
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11
12
24
23
22
21
20
19
18
17
16
15
14
13
1Y1
1Y2
1Y3
1Y4
GND
GND
GND
GND
2Y1
2Y2
2Y3
2Y4
1OE
1A1
1A2
1A3
1A4
VCC
VCC
2A1
2A2
2A3
2A4
2OE
DB, DW, OR NT PACKAGE
(TOP VIEW)


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