74AC11239J [TI]
IC,DECODER/DEMUX,2-TO-4-LINE,AC-CMOS,DIP,16PIN,CERAMIC;型号: | 74AC11239J |
厂家: | TEXAS INSTRUMENTS |
描述: | IC,DECODER/DEMUX,2-TO-4-LINE,AC-CMOS,DIP,16PIN,CERAMIC 解复用器 |
文件: | 总7页 (文件大小:117K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
74AC11239
DUAL 2–LINE TO 4–LINE DECODER/DEMULTIPLEXER
SCAS072A – JULY 1989 – REVISED APRIL 1993
D OR N PACKAGE
(TOP VIEW)
• Designed Specifically for High-Speed
Memory Decoders and Data Transmission
Systems
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1Y0
1A
1Y1
1Y2
1Y3
GND
2Y0
2Y1
2Y2
2Y3
• Incorporates Two Enable Inputs to Simplify
Cascading and/or Data Reception
1B
• Flow-Through Architecture to Optimize
1G
PCB Layout
V
CC
• Center-Pin V
and GND Configurations to
Minimize High-Speed Switching Noise
CC
2G
2A
2B
• EPIC (Enhanced-Performance Implanted
CMOS) 1- m Process
• 500-mA Typical Latch-Up Immunity
at 125°C
• Package Options Include Plastic Small
Outline Packages, and Standard Plastic
300-mil DIPs
description
The 74AC11239 circuit is designed to be used in high-performance memory-decoding or data- routing
applications requiring very short propagation delay times. In high-performance memory systems, this decoder
can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing
a fast enable circuit, the delay times of this decoder and the enable time of the memory are usually less than
the typical access time of the memory. This means that the effective system delay introduced by the decoder
is negligible.
The 74AC11239 is comprised of two individual two-line to four-line decoders in a single package. Theactive-low
enable input can be used as a data line in demultiplexing applications. These decoders/demultiplexers feature
fully buffered inputs, each of which represents only one normalized load to its driving circuit.
The 74AC11239 is characterized for operation from – 40°C to 85°C.
FUNCTION TABLE
SELECT INPUTS
OUTPUTS
ENABLE INPUT
G
A
X
L
B
X
L
Y0
L
Y1
L
Y2
L
Y3
L
H
L
L
L
L
H
L
L
L
L
H
L
L
H
L
L
L
H
H
L
H
L
L
H
L
L
H
EPIC is a trademark of Texas Instruments Incorporated.
Copyright 1993, 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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
74AC11239
DUAL 2–LINE TO 4–LINE DECODER/DEMULTIPLEXER
SCAS072A – JULY 1989 – REVISED APRIL 1993
†
logic symbols (alternatives)
X/Y
DMUX
0
15
14
13
16
1
15
14
13
16
1
1Y0
1Y1
1Y2
1Y3
1Y0
1Y1
1Y2
1Y3
0
1
2
3
0
1
2
3
0
0
1
1A
1B
1G
1A
1B
1G
G
3
1
2
3
2
3
EN
10
9
5
6
7
8
10
9
5
6
7
8
2A
2B
2Y0
2Y1
2Y2
2Y3
2A
2B
2Y0
2Y1
2Y2
2Y3
11
11
2G
2G
†
These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
16
1
1Y0
13
Enable 1G
1Y1
2
1Y2
1Y3
15
14
1A
Select Inputs
3
1B
Data Outputs
5
2Y0
2Y1
11
Enable 2G
6
7
2Y2
2Y3
10
9
2A
Select
8
2B
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
74AC11239
DUAL 2–LINE TO 4–LINE DECODER/DEMULTIPLEXER
SCAS072A – JULY 1989 – REVISED APRIL 1993
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
CC
Input voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to V
+ 0.5 V
+ 0.5 V
I
CC
CC
Output voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to V
O
Input clamp current, I (V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 20 mA
IK
I
I
CC
Output clamp current, I
(V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA
OK
O O CC
Continuous output current, I (V = 0 to V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA
Continuous current through V
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
O
O
CC
CC
or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 200 mA
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
recommended operating conditions
MIN
NOM
MAX
UNIT
V
Supply voltage
3
2.1
5
5.5
V
CC
IH
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 3 V
V
High-level input voltage
= 4.5 V
= 5.5 V
= 3 V
3.15
3.85
V
V
0.9
1.35
1.65
V
IL
Low-level input voltage
= 4.5 V
= 5.5 V
V
V
Input voltage
0
0
V
V
V
I
CC
Output voltage
V
CC
–4
O
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 3 V
I
High-level output current
Low-level output current
= 4.5 V
= 5.5 V
= 3 V
–24
–24
12
mA
mA
OH
I
= 4.5 V
= 5.5 V
24
OL
24
t/ v
Input transition rise or fall rate
Operating free-air temperature
0
10
ns/V
T
– 40
85
°C
A
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
74AC11239
DUAL 2–LINE TO 4–LINE DECODER/DEMULTIPLEXER
SCAS072A – JULY 1989 – REVISED APRIL 1993
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
T
A
= 25°C
PARAMETER
TEST CONDITIONS
V
MIN
MAX
UNIT
CC
MIN
2.9
TYP
MAX
3 V
4.5 V
5.5 V
3 V
2.9
4.4
I
= – 50
A
4.4
OH
5.4
5.4
I
I
= – 4 mA
2.58
3.94
4.94
2.48
3.8
OH
V
OH
V
4.5 V
5.5 V
5.5 V
5.5 V
3 V
= – 24 mA
OH
4.8
I
I
= – 50 mA
= – 75 mA
OH
3.85
OH
0.1
0.1
0.1
0.1
I
= 50
A
4.5 V
5.5 V
3 V
OL
0.1
0.1
I
I
= 12 mA
= 24 mA
0.36
0.36
0.36
0.44
0.44
0.44
OL
V
OL
V
4.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5 V
OL
I
I
= 50 mA
= 75 mA
OL
1.65
± 1
80
OL
I
I
V = V
or GND
± 0.1
A
A
I
I
CC
CC
CC
V = V
or GND,
or GND
I = 0
O
8
CC
I
C
V = V
3.5
pF
i
I
†
Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
switching characteristics over recommended operating free-air temperature range,
= 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
V
CC
T
A
= 25°C
TYP
6.2
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
MIN
MAX
UNIT
ns
MIN
1.5
1.5
1.5
1.5
MAX
8.5
8
t
t
t
t
1.5
1.5
1.5
1.5
9.5
9
PLH
PHL
PLH
PHL
A or B
G
Y
Y
5.6
5.4
7.1
7.3
7.9
8.1
ns
5.7
switching characteristics over recommended operating free-air temperature range,
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
V
CC
T
A
= 25°C
TYP
4
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
MIN
MAX
UNIT
ns
MIN
1.5
1.5
1.5
1.5
MAX
6.1
t
t
t
t
1.5
1.5
1.5
1.5
6.7
6.8
5.8
6.2
PLH
PHL
PLH
PHL
A or B
G
Y
Y
3.7
6.1
3.5
5.3
ns
3.9
5.6
operating characteristics, V
= 5 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
= 50 pF, f = 1 MHz
L
TYP
UNIT
C
Power dissipation capacitance
C
48
pF
pd
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
74AC11239
DUAL 2–LINE TO 4–LINE DECODER/DEMULTIPLEXER
SCAS072A – JULY 1989 – REVISED APRIL 1993
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
C
= 50 pF
L
500 Ω
(see Note A)
LOAD CIRCUIT
V
0
CC
Input
(see Note B)
50%
50%
t
PLH
t
PHL
V
OH
Output
50%
PROPAGATION DELAY TIMES
50%
V
OL
NOTES: A.C includes probe and jig capacitance.
L
B.Input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z = 50 Ω, t = 3 ns, t = 3 ns.
O
r
f
C.The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
PACKAGE OPTION ADDENDUM
www.ti.com
24-Jun-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
SOIC
PDIP
Drawing
74AC11239D
74AC11239N
OBSOLETE
OBSOLETE
D
N
16
16
TBD
TBD
Call TI
Call TI
Call TI
Call TI
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third-party products or services
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for
such altered documentation.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
product or service voids all express and any implied warranties for the associated TI product or service and
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Following are URLs where you can obtain information on other Texas Instruments products and application
solutions:
Products
Applications
Audio
Amplifiers
amplifier.ti.com
www.ti.com/audio
Data Converters
dataconverter.ti.com
Automotive
www.ti.com/automotive
DSP
dsp.ti.com
Broadband
Digital Control
Military
www.ti.com/broadband
www.ti.com/digitalcontrol
www.ti.com/military
Interface
Logic
interface.ti.com
logic.ti.com
Power Mgmt
Microcontrollers
power.ti.com
Optical Networking
Security
www.ti.com/opticalnetwork
www.ti.com/security
www.ti.com/telephony
www.ti.com/video
microcontroller.ti.com
Telephony
Video & Imaging
Wireless
www.ti.com/wireless
Mailing Address:
Texas Instruments
Post Office Box 655303 Dallas, Texas 75265
Copyright 2005, Texas Instruments Incorporated
相关型号:
©2020 ICPDF网 联系我们和版权申明