SN74ALS139 [TI]
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS; 双路2号线至4线解码器/多路解复用器
| 型号： | SN74ALS139 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS |
| 文件： | 总13页 (文件大小：485K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54ALS139, SN74ALS139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDAS204A – APRIL 1982 – REVISED DECEMBER 1994
SN54ALS139 . . . J PACKAGE
SN74ALS139 . . . D OR N PACKAGE
(TOP VIEW)
• Designed Specifically for High-Speed
Memory Decoders and Data Transmission
Systems
• Incorporate Two Enable Inputs to Simplify
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
V
CC
2G
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Cascading and/or Data Reception
• Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
2A
2B
2Y0
2Y1
2Y2
2Y3
description
The ′ALS139 are dual 2-line to 4-line
decoders/demultiplexers designed for use in
high-performance memory-decoding or data-
routing applications requiring very short
propagation delay times. In high-performance
memory systems, these devices can minimize the
effects of system decoding. When employed with
high-speed memories utilizing a fast-enable
circuit, the delay times of these decoders and the
enable time of the memory are usually less than
the typical access time of the memory. Therefore,
the effective system delay introduced by the
Schottky-clamped system decoder is negligible.
SN54ALS139 . . . FK PACKAGE
(TOP VIEW)
3
2
1
20 19
18 2A
1B
1Y0
NC
4
5
6
7
8
17
16
15
14
2B
NC
2Y0
2Y1
1Y1
1Y2
9 10 11 12 13
The ′ALS139 comprise two individual 2-line to
4-line decoders in a single package. The
active-low enable (G) input can be used as a data
line in demultiplexing applications. These
NC – No internal connection
decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its
driving circuit. All inputs are clamped with high-performance Schottky diodes to suppress line ringing and
simplify system design.
The SN54ALS139 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74ALS139 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS
OUTPUTS
SELECT
ENABLE
G
B
X
L
A
X
L
Y0
H
L
Y1
H
H
L
Y2
H
H
H
L
Y3
H
H
H
H
L
H
L
L
L
L
L
H
L
H
H
H
H
H
H
H
H
H
Copyright 1994, 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
SN54ALS139, SN74ALS139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDAS204A – APRIL 1982 – REVISED DECEMBER 1994
†
logic symbols (alternatives)
X/Y
DMUX
4
5
4
5
2
3
1
2
3
1
0
1
2
3
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
0
1
2
3
1Y0
1Y1
1Y2
1Y3
2Y0
2Y1
2Y2
2Y3
1A
1B
1
1A
1B
0
1
0
G
3
6
6
EN
1G
1G
7
7
12
11
10
9
12
11
10
9
14
13
15
14
13
15
2A
2B
2G
2A
2B
2G
†
These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
logic diagram (positive logic)
4
1Y0
1
Enable 1G
5
6
1Y1
1Y2
2
1A
Select
Inputs
7
1Y3
2Y0
3
1B
Data
Outputs
12
15
Enable 2G
11
10
2Y1
2Y2
14
2A
Select
Inputs
9
2Y3
13
2B
Pin numbers shown are for the D, J, and N packages.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS139, SN74ALS139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDAS204A – APRIL 1982 – REVISED DECEMBER 1994
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
CC
Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
I
Operating free-air temperature range, T : SN54ALS139 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C
A
SN74ALS139 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
†
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.
recommended operating conditions
SN54ALS139
MIN NOM MAX
SN74ALS139
MIN NOM MAX
UNIT
V
V
V
Supply voltage
4.5
2
5
5.5
4.5
2
5
5.5
V
V
CC
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
Operating free-air temperature
IH
0.7
–0.4
4
0.8
–0.4
8
V
IL
I
I
mA
mA
°C
OH
OL
T
A
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54ALS139
SN74ALS139
PARAMETER
TEST CONDITIONS
UNIT
‡
‡
MIN TYP
MAX
MIN TYP
MAX
V
V
V
V
= 4.5 V,
I = –18 mA
–1.2
–1.2
V
V
IK
CC
I
= 4.5 V to 5.5 V,
I
I
I
= –0.4 mA
= 4 mA
V
CC
–2
V
CC
–2
OH
CC
OH
OL
OL
0.25
0.4
0.25
0.35
0.4
0.5
V
OL
V
CC
= 4.5 V
V
= 8 mA
I
I
I
I
I
V
CC
V
CC
V
CC
V
CC
V
CC
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 5.5 V
V = 7 V
0.1
20
0.1
mA
µA
I
I
V = 2.7 V
I
20
IH
V = 0.4 V
I
–0.1
–112
13
–0.1
–112
13
mA
mA
mA
IL
§
V
O
= 2.25 V
–20
–30
O
8
8
CC
‡
§
All typical values are at V
= 5 V, T = 25°C.
A
CC
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
.
OS
switching characteristics (see Figure 1)
V
C
R
= 4.5 V to 5.5 V,
= 50 pF,
CC
L
L
= 500 Ω,
FROM
TO
(OUTPUT)
¶
PARAMETER
(INPUT)
UNIT
T
A
= MIN to MAX
SN54ALS139 SN74ALS139
MIN
3
MAX
17
MIN
3
MAX
14
t
t
t
t
PLH
PHL
PLH
PHL
A or B
G
Y
Y
ns
ns
3
17
3
14
3
17
3
14
3
18
3
15
¶
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ALS139, SN74ALS139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDAS204A – APRIL 1982 – REVISED DECEMBER 1994
PARAMETER MEASUREMENT INFORMATION
SERIES 54ALS/74ALS AND 54AS/74AS DEVICES
7 V
R
= R1 = R2
V
CC
L
S1
R1
R
L
Test
Point
From Output
Under Test
From Output
Under Test
Test
Point
Test
Point
From Output
Under Test
C
C
L
R
L
R2
L
C
L
(see Note A)
(see Note A)
(see Note A)
LOAD CIRCUIT FOR
BI-STATE
TOTEM-POLE OUTPUTS
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
3.5 V
3.5 V
Timing
Input
High-Level
1.3 V
1.3 V
1.3 V
Pulse
0.3 V
0.3 V
t
h
t
w
t
su
3.5 V
3.5 V
0.3 V
Data
Input
Low-Level
1.3 V
1.3 V
1.3 V
1.3 V
Pulse
0.3 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATIONS
3.5 V
0.3 V
Output
Control
(low-level
enabling)
1.3 V
1.3 V
3.5 V
t
PZL
Input
1.3 V
1.3 V
t
PLZ
0.3 V
PHL
3.5 V
t
Waveform 1
S1 Closed
(see Note B)
t
PLH
1.3 V
V
OH
In-Phase
Output
1.3 V
1.3 V
1.3 V
V
OL
0.3 V
V
OL
t
PHZ
t
PLH
t
PZH
t
PHL
V
OH
V
Waveform 2
S1 Open
(see Note B)
OH
OL
Out-of-Phase
Output
(see Note C)
1.3 V
1.3 V
0.3 V
V
0 V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
NOTES: A.
C includes probe and jig capacitance.
L
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. When measuring propagation delay items of 3-state outputs, switch S1 is open.
D. All input pulses have the following characteristics: PRR ≤ 1 MHz, t = t = 2 ns, duty cycle = 50%.
r
f
E. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
17-Oct-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
LCCC
CDIP
CFP
Drawing
5962-87683012A
5962-8768301EA
5962-8768301FA
SN54ALS139J
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
FK
J
20
16
16
16
16
1
1
1
1
TBD
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
W
J
CDIP
SOIC
SN74ALS139D
D
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74ALS139DE4
SN74ALS139DR
SN74ALS139DRE4
SN74ALS139N
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOIC
SOIC
SOIC
PDIP
D
D
D
N
16
16
16
16
40 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
2500 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
25
25
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
SN74ALS139N3
SN74ALS139NE4
OBSOLETE
ACTIVE
PDIP
PDIP
N
N
16
16
TBD
Call TI
Call TI
Pb-Free
(RoHS)
CU NIPDAU Level-NC-NC-NC
SN74ALS139NSR
ACTIVE
ACTIVE
SO
SO
NS
NS
16
16
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SN74ALS139NSRE4
2000 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM
no Sb/Br)
SNJ54ALS139FK
SNJ54ALS139J
SNJ54ALS139W
ACTIVE
ACTIVE
ACTIVE
LCCC
CDIP
CFP
FK
J
20
16
16
1
1
1
TBD
TBD
TBD
Call TI
Call TI
Call TI
Level-NC-NC-NC
Level-NC-NC-NC
Level-NC-NC-NC
W
(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.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
17-Oct-2005
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 2
MECHANICAL DATA
MLCC006B – OCTOBER 1996
FK (S-CQCC-N**)
LEADLESS CERAMIC CHIP CARRIER
28 TERMINAL SHOWN
A
B
NO. OF
TERMINALS
**
18 17 16 15 14 13 12
MIN
MAX
MIN
MAX
0.342
(8,69)
0.358
(9,09)
0.307
(7,80)
0.358
(9,09)
19
20
11
10
9
20
28
44
52
68
84
0.442
(11,23)
0.458
(11,63)
0.406
(10,31)
0.458
(11,63)
21
B SQ
22
0.640
(16,26)
0.660
(16,76)
0.495
(12,58)
0.560
(14,22)
8
A SQ
23
0.739
(18,78)
0.761
(19,32)
0.495
(12,58)
0.560
(14,22)
7
24
25
6
0.938
(23,83)
0.962
(24,43)
0.850
(21,6)
0.858
(21,8)
5
1.141
(28,99)
1.165
(29,59)
1.047
(26,6)
1.063
(27,0)
26 27 28
1
2
3
4
0.080 (2,03)
0.064 (1,63)
0.020 (0,51)
0.010 (0,25)
0.020 (0,51)
0.010 (0,25)
0.055 (1,40)
0.045 (1,14)
0.045 (1,14)
0.035 (0,89)
0.045 (1,14)
0.035 (0,89)
0.028 (0,71)
0.022 (0,54)
0.050 (1,27)
4040140/D 10/96
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. This package can be hermetically sealed with a metal lid.
D. The terminals are gold plated.
E. Falls within JEDEC MS-004
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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