Texas Instruments SN74AHC139D, SN74AHC139DBLE, SN74AHC139DBR, SN74AHC139DGVR, SN74AHC139DR Datasheet
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SN54AHC139, SN74AHC139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SCLS259H – DECEMBER 1995 – REVISED JANUARY 2000
D
EPIC
(Enhanced-Performance Implanted
CMOS) Process
D
Operating Range 2-V to 5.5-V V
D
Designed Specifically for High-Speed
CC
Memory Decoders and Data-Transmission
Systems
D
Incorporate Two Enable Inputs to Simplify
Cascading and/or Data Reception
D
Latch-Up Performance Exceeds 250 mA Per
JESD 17
D
ESD Protection Exceeds 2000 V Per
SN54AHC139 ...J OR W PACKAGE
SN74AHC139 . . . D, DB, DGV, N, OR PW PACKAGE
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
(TOP VIEW)
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
V
CC
2G
2A
2B
2Y0
2Y1
2Y2
9
2Y3
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D
Package Options Include Plastic
Small-Outline (D), Shrink Small-Outline
(DB), Thin Very Small-Outline (DGV), Thin
Shrink Small-Outline (PW), and Ceramic
Flat (W) Packages, Ceramic Chip Carriers
(FK), and Standard Plastic (N) and Ceramic
(J) DIPs
description
SN54AHC139 . . . FK PACKAGE
1B
1Y0
NC
1Y1
1Y2
(TOP VIEW)
1A1GNC
3212019
4
5
6
7
8
910111213
V
CC
2G
18
17
16
15
14
2A
2B
NC
2Y0
2Y1
The ’AHC139 devices are dual 2-line to 4-line
decoders/demultiplexers designed for 2-V to
5.5-V V
operation. These devices are
CC
designed to be used in high-performance
NC – No internal connection
1Y3
NC
GND
2Y3
2Y2
memory-decoding or data-routing applications
requiring very short propagation delay times. In
high-performance memory systems, these decoders can be used to minimize the effects of system decoding.
When used with high-speed memories utilizing a fast enable circuit, the delay times of these decoders 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 active-low enable (G
) 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 SN54AHC139 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74AHC139 is characterized for operation from –40°C to 85°C.
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.
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 2000, Texas Instruments Incorporated
1
SN54AHC139, SN74AHC139
OUTPUTS
G
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SCLS259H – DECEMBER 1995 – REVISED JANUARY 2000
FUNCTION TABLE
(each decoder/demultiplexer)
INPUTS
SELECT
B A Y0 Y1 Y2 Y3
H X X H H H H
L L LLHHH
L L HHLHH
L H LHHLH
L H H H H H L
X/Y
†
4
12
11
10
1Y0
5
1Y1
6
1Y2
7
1Y3
2Y0
2Y1
2Y2
9
2Y3
0
1
2
3
1A
1B
1G
2A
2B
2G
2
3
1
14
13
15
logic symbols (alternatives)
2
1A
3
1B
1
1G
14
2A
13
2B
15
2G
†
These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, DB, DGV, J, N, PW, and W packages.
1
2
EN
EN
1
2
EN
EN
DMUX
G
4
12
11
10
1Y0
5
1Y1
6
1Y2
7
1Y3
2Y0
2Y1
2Y2
9
2Y3
0
0
1
3
2
3
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic diagram (positive logic)
1
1G
2
Select
Inputs
Select
Inputs
1A
1B
2G
2A
2B
3
15
14
13
SN54AHC139, SN74AHC139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SCLS259H – DECEMBER 1995 – REVISED JANUARY 2000
4
1Y0
5
1Y1
6
1Y2
7
1Y3
Data
12
11
10
2Y0
2Y1
2Y2
9
2Y3
Outputs
Pin numbers shown are for the D, DB, DGV, J, N, PW, and W packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, V
Input clamp current, I
Output clamp current, I
Continuous output current, I
(see Note 1) –0.5 V to V
O
(V
< 0) –20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IK
I
(V
< 0 or VO > VCC) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OK
O
(V
= 0 to VCC) ±25 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
O
O
Continuous current through VCC or GND ±75 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
(see Note 2): D package 73°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JA
DB package 82°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package 120°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 67°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 108°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
†
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.
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
CC
+ 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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