74AC11240

Manufacturer Part Number74AC11240
DescriptionOCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
ManufacturerTexas Instruments
74AC11240 datasheet
 


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D
Flow-Through Architecture Optimizes
PCB Layout
D
Center-Pin V
and GND Configurations
CC
Minimize High-Speed Switching Noise
D
t (Enhanced-Performance Implanted
EPIC
m
CMOS) 1-
m 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
symmetrical
active-low
output-enable
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.
logic symbol
24
1OE
EN
23
1
1A1
22
1A2
21
1A3
20
1A4
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
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.
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.
DB, DW, OR NT PACKAGE
GND
GND
GND
GND
outputs
and
(OE)
FUNCTION TABLE
(each buffer)
INPUTS
OUTPUT
OUTPUT
Y
OE
A
L
H
L
L
L
H
H
X
Z
13
2OE
1
17
1Y1
2A1
2
16
1Y2
2A2
3
15
1Y3
2A3
4
14
1Y4
2A4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
74AC11240
OCTAL BUFFER/LINE DRIVER
WITH 3-STATE OUTPUTS
SCAS448A – MAY 1987 – REVISED APRIL 1996
(TOP VIEW)
1Y1
1
24
1OE
1Y2
2
23
1A1
1Y3
3
22
1A2
1Y4
4
21
1A3
5
20
1A4
6
19
V
CC
7
18
V
CC
8
17
2A1
9
16
2Y1
2A2
10
15
2Y2
2A3
11
14
2Y3
2A4
12
13
2Y4
2OE
EN
9
1
2Y1
10
2Y2
11
2Y3
12
2Y4
Copyright
1996, Texas Instruments Incorporated
1

74AC11240 Summary of contents

  • Page 1

    ... 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. ...

  • Page 2

    ... OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS SCAS448A – MAY 1987 – REVISED APRIL 1996 logic diagram (positive logic) 24 1OE 23 1A1 22 1A2 21 1A3 20 1A4 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage range ...

  • Page 3

    ... V 3.94 5.5 V 4.94 5 4 4.5 V 5.5 V 5.5 V 5 POST OFFICE BOX 655303 DALLAS, TEXAS 75265 74AC11240 OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS SCAS448A – MAY 1987 – REVISED APRIL 1996 MIN NOM MAX UNIT 3 5 5.5 V 2.1 3.15 V 3.85 0.9 1. ...

  • Page 4

    ... OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS SCAS448A – MAY 1987 – REVISED APRIL 1996 switching characteristics over recommended operating free-air temperature range 3.3 V 0.3 V (unless otherwise noted) (see Figure 1) CC FROM PARAMETER PARAMETER (INPUT) t PLH PHL t PZH PZL t PHZ ...

  • Page 5

    ... PZH Output V OH Waveform 2 50 GND V OL (see Note B) POST OFFICE BOX 655303 DALLAS, TEXAS 75265 74AC11240 OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS SCAS448A – MAY 1987 – REVISED APRIL 1996 TEST S1 t PLH /t PHL Open t PLZ /t PZL ...

  • Page 6

    ... Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability ...