SN74HC138QPWRQ1 [TI]
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS;
| 型号： | SN74HC138QPWRQ1 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS 驱动 输入元件 光电二极管 逻辑集成电路 |
| 文件： | 总14页 (文件大小：814K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN74HC138-Q1
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCLS533A − AUGUST 2003 − REVISED SEPTEMBER 2008
D OR PW PACKAGE
(TOP VIEW)
D
D
Qualified for Automotive Applications
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
A
B
VCC
Y0
1
2
3
4
5
6
7
8
16
15
14
13
D
Targeted Specifically for High-Speed
Memory Decoders and Data-Transmission
Systems
C
Y1
G2A
G2B
G1
Y7
GND
Y2
12 Y3
D
D
D
D
D
D
D
2-V to 6-V V Operation
11
10
9
CC
Y4
Y5
Y6
Outputs Can Drive Up To 10 LSTTL Loads
Low Power Consumption, 80-µA Max I
CC
Typical t = 15 ns
pd
4-mA Output Drive at 5 V
Low Input Current of 1 µA Max
Incorporate Three Enable Inputs to Simplify
Cascading and/or Data Reception
description/ordering information
The SN74HC138 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 usually are less than the typical access
time of the memory. This means that the effective system delay introduced by the decoders is negligible.
The conditions at the binary-select inputs at the three enable inputs select one of eight output lines. Two
active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding.
A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one
inverter. An enable input can be used as a data input for demultiplexing applications.
{
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
‡
T
A
PACKAGE
SOIC − D
Tape and reel
Tape and reel
SN74HC138QDRQ1
SN74HC138QPWRQ1
HC138Q1
HC138Q1
−40°C to 125°C
TSSOP − PW
†
‡
For the most current package and ordering information, see the Package Option Addendum at the end of this
document, or see the TI web site at www.ti.com.
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
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.
Copyright 2008, 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
SN74HC138-Q1
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCLS533A − AUGUST 2003 − REVISED SEPTEMBER 2008
FUNCTION TABLE
INPUTS
OUTPUTS
ENABLE
SELECT
G1
X
G2A
H
X
X
L
G2B
X
H
X
L
C
X
X
X
L
B
X
X
X
L
A
X
X
X
L
Y0
H
H
H
L
Y1
H
H
H
H
L
Y2
H
H
H
H
H
L
Y3
H
H
H
H
H
H
L
Y4
H
H
H
H
H
H
H
L
Y5
H
H
H
H
H
H
H
H
L
Y6
H
H
H
H
H
H
H
H
H
L
Y7
H
H
H
H
H
H
H
H
H
H
L
X
L
H
H
H
H
H
H
H
H
L
L
L
L
H
L
H
H
H
H
H
H
H
L
L
L
H
H
L
H
H
H
H
H
H
L
L
L
H
L
H
H
H
H
H
L
L
H
H
H
H
H
H
H
H
L
L
L
H
L
H
H
H
L
L
H
H
H
H
L
L
H
H
logic diagram (positive logic)
15
14
13
12
11
10
9
Y0
Y1
Y2
Y3
1
A
2
B
3
C
Y4
Y5
6
G1
Y6
Y7
4
G2A
7
5
G2B
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74HC138-Q1
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCLS533A − AUGUST 2003 − REVISED SEPTEMBER 2008
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
CC
Input clamp current, I (V < 0 or V > V ) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
IK
I
I
CC
Output clamp current, I (V < 0 or V > V ) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
OK
O
O
CC
Continuous output current, I (V = 0 to V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA
O
O
CC
Continuous current through V or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
CC
Package thermal impedance, θ (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W
JA
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Storage temperature range, T
stg
†
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.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
MIN NOM
MAX
UNIT
V
Supply voltage
2
1.5
5
6
V
CC
IH
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 2 V
= 4.5 V
= 6 V
3.15
4.2
V
High-level input voltage
V
V
= 2 V
0.5
1.35
1.8
= 4.5 V
= 6 V
V
IL
Low-level input voltage
V
V
Input voltage
0
0
V
CC
V
CC
V
V
I
Output voltage
O
V
CC
V
CC
V
CC
= 2 V
1000
500
400
125
= 4.5 V
= 6 V
∆t/∆v
Input transition rise/fall time
ns
T
A
Operating free-air temperature
−40
°C
NOTE 3: All unused inputs of the device must be held at V
or GND to ensure proper device operation. Refer to the TI application report,
CC
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74HC138-Q1
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCLS533A − AUGUST 2003 − REVISED SEPTEMBER 2008
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
T
A
= 25°C
PARAMETER
TEST CONDITIONS
V
CC
MIN
MAX
UNIT
MIN
TYP
MAX
2 V
4.5 V
6 V
1.9 1.998
4.4 4.499
5.9 5.999
1.9
4.4
5.9
3.7
5.2
I
= −20 µA
OH
V
V
V = V or V
V
OH
I
IH
IL
I
I
= −4 mA
4.5 V
6 V
3.98
5.48
4.3
5.8
OH
= −5.2 mA
OH
2 V
0.002
0.001
0.001
0.17
0.15
0.1
0.1
0.1
0.1
0.26
0.26
100
8
0.1
0.1
4.5 V
6 V
I
OL
= 20 µA
0.1
V = V or V
V
OL
I
IH
IL
I
I
= 4 mA
4.5 V
6 V
0.4
OL
= 5.2 mA
0.4
OL
I
I
V = V or 0
6 V
1000
160
10
nA
µA
pF
I
I
CC
V = V or 0,
I
O
= 0
6 V
CC
I
CC
C
2 V to 6 V
3
10
i
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
T
A
= 25°C
TYP
67
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
V
MIN
MAX
UNIT
CC
MIN
MAX
180
36
2 V
4.5 V
6 V
270
54
18
A, B, or C
Enable
Any Y
Any Y
Any
15
31
46
t
pd
ns
2 V
66
155
31
235
47
4.5 V
6 V
18
15
26
40
2 V
38
75
110
22
t
t
4.5 V
6 V
8
15
ns
6
13
19
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
C
Power dissipation capacitance
No load
85
pF
pd
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74HC138-Q1
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCLS533A − AUGUST 2003 − REVISED SEPTEMBER 2008
PARAMETER MEASUREMENT INFORMATION
V
CC
From Output
Under Test
Test
Point
Input
50%
50%
0 V
C = 50 pF
(see Note A)
L
t
t
PHL
PLH
V
V
OH
In-Phase
Output
90%
t
90%
50%
10%
50%
10%
LOAD CIRCUIT
OL
t
r
f
f
t
t
PLH
PHL
V
CC
V
V
OH
90%
t
90%
Input
50%
10%
50%
10%
90%
90%
t
Out-of-Phase
Output
50%
10%
50%
10%
0 V
OL
t
r
f
t
r
VOLTAGE WAVEFORM
INPUT RISE AND FALL TIMES
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
NOTES: A. C includes probe and test-fixture capacitance.
L
B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 1 MHz, Z = 50 Ω, t = 6 ns, t = 6 ns.
O
r
f
C. The outputs are measured one at a time with one input transition per measurement.
D. and t are the same as t
t
.
pd
PLH
PHL
Figure 1. Load Circuit and Voltage Waveforms
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
24-Jan-2013
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package Qty
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Top-Side Markings
Samples
Drawing
(1)
(2)
(3)
(4)
SN74HC138QDRG4Q1
ACTIVE
SOIC
D
16
2500
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
-40 to 125 HC138Q1
SN74HC138QDRQ1
OBSOLETE
ACTIVE
SOIC
D
16
16
TBD
Call TI
Call TI
-40 to 125 HC138Q1
-40 to 125 HC138Q1
SN74HC138QPWRG4Q1
TSSOP
PW
2000
2000
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74HC138QPWRQ1
ACTIVE
TSSOP
PW
16
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
-40 to 125 HC138Q1
(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), Pb-Free (RoHS Exempt), 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.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
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.
(4) Only one of markings shown within the brackets will appear on the physical device.
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
PACKAGE OPTION ADDENDUM
www.ti.com
24-Jan-2013
OTHER QUALIFIED VERSIONS OF SN74HC138-Q1 :
Catalog: SN74HC138
•
Military: SN54HC138
•
NOTE: Qualified Version Definitions:
Catalog - TI's standard catalog product
•
Military - QML certified for Military and Defense Applications
•
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Mar-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
SN74HC138QPWRG4Q1 TSSOP
SN74HC138QPWRQ1 TSSOP
PW
PW
16
16
2000
2000
330.0
330.0
12.4
12.4
6.9
6.9
5.6
5.6
1.6
1.6
8.0
8.0
12.0
12.0
Q1
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Mar-2013
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
SN74HC138QPWRG4Q1
SN74HC138QPWRQ1
TSSOP
TSSOP
PW
PW
16
16
2000
2000
367.0
367.0
367.0
367.0
35.0
35.0
Pack Materials-Page 2
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