74AHC139; 74AHCT139
Dual 2-to-4 line decoder/demultiplexer
Rev. 02 — 9 May 2008
Product data sheet
1. General description
The 74AHC139; 74AHCT139 is a high-speed Si-gate CMOS device and is pin compatible
with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard
No. 7-A.
The 74AHC139; 74AHCT139 is a high-speed, dual 2-to-4 line decoder/demultiplexer. This
device has two independent decoders, each accepting two binary weighted inputs (nA0
and nA1) and providing four mutually exclusive active LOW outputs (nY0 to nY3). Each
decoder has an active LOW enable input (nE). When nE is HIGH, every output is forced
HIGH. The enable input can be used as the data input for a 1-to-4 demultiplexer
application.
The 74AHC139; 74AHCT139 is identical to the HEF4556 of the HE4000B family.
2. Features
I
I
I
I
Balanced propagation delays
All inputs have Schmitt-trigger actions
Inputs accept voltages higher than V
CC
Input levels:
N
For 74AHC139: CMOS level
N
For 74AHCT139: TTL level
I
ESD protection:
N
HBM EIA/JESD22-A114E exceeds 2000 V
N
MM EIA/JESD22-A115-A exceeds 200 V
N
CDM EIA/JESD22-C101C exceeds 1000 V
I
Multiple package options
I
Specified from
−40 °C
to +85
°C
and from
−40 °C
to +125
°C
3. Ordering information
Table 1.
Ordering information
Package
Temperature range Name
74AHC139
74AHC139D
74AHC139PW
−40 °C
to +125
°C
−40 °C
to +125
°C
SO16
TSSOP16
plastic small outline package; 16 leads;
body width 3.9 mm
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
SOT109-1
SOT403-1
Description
Version
Type number
Nexperia
74AHC139; 74AHCT139
Dual 2-to-4 line decoder/demultiplexer
Table 1.
Ordering information
…continued
Package
Temperature range Name
Description
plastic small outline package; 16 leads;
body width 3.9 mm
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
Version
SOT109-1
SOT403-1
Type number
74AHCT139
74AHCT139D
74AHCT139PW
−40 °C
to +125
°C
−40 °C
to +125
°C
SO16
TSSOP16
4. Functional diagram
1
1E
1Y0
2
3
1A0
1A1
1Y1
1Y2
1Y3
2Y0
14
13
2A0
2A1
2E
15
mna779
4
5
6
7
12
11
10
9
2
3
1
DX 0
0
0 1
G
3
1
2
3
DX 0
0
0 1
G
3
1
2
3
4
5
6
7
2
3
1
1
2
EN
X/Y 0
1
2
3
X/Y 0
1
2
EN
1
2
3
4
5
6
7
12
11
10
9
14
13
15
12
11
10
9
2Y1
2Y2
2Y3
14
13
15
(a)
a = demultiplexer and b = decoder
(b)
mna781
Fig 1. Logic symbol
Fig 2. IEC logic symbol
1Y0
2
3
1A0
1A1
DECODER
1Y1
1Y2
1Y3
1
1E
4
5
6
7
2Y0 12
14
13
2A0
2A1
DECODER
2Y1 11
2Y2 10
2Y3
15
2E
mna780
9
Fig 3. Functional diagram
74AHC_AHCT139_2
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 02 — 9 May 2008
2 of 14
Nexperia
74AHC139; 74AHCT139
Dual 2-to-4 line decoder/demultiplexer
5. Pinning information
5.1 Pinning
1E
1A0
1A1
1Y0
1Y1
1Y2
1Y3
GND
1
2
3
4
16 V
CC
15 2E
14 2A0
13 2A1
139
5
6
7
8
001aad029
12 2Y0
11 2Y1
10 2Y2
9
2Y3
Fig 4.
Pin configuration
5.2 Pin description
Table 2.
Symbol
1E
1A0
1A1
1Y0
1Y1
1Y2
1Y3
GND
2Y3
2Y2
2Y1
2Y0
2A1
2A0
2E
V
CC
Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Description
enable input (active LOW)
address input
address input
output
output
output
output
ground (0 V)
output
output
output
output
address input
address input
enable input (active LOW)
supply voltage
74AHC_AHCT139_2
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 02 — 9 May 2008
3 of 14
Nexperia
74AHC139; 74AHCT139
Dual 2-to-4 line decoder/demultiplexer
6. Functional description
Table 3.
Control
nE
H
L
Function table
[1]
Input
nA0
X
L
H
L
H
[1]
H = HIGH voltage level;
L = LOW voltage level;
X = don’t care.
Output
nA1
X
L
L
H
H
nY0
H
L
H
H
H
nY1
H
H
L
H
H
nY2
H
H
H
L
H
nY3
H
H
H
H
L
7. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
V
I
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
[1]
[2]
Parameter
supply voltage
input voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
Conditions
Min
−0.5
−0.5
Max
+7.0
+7.0
-
+20
+25
+75
-
+150
500
Unit
V
V
mA
mA
mA
mA
mA
°C
mW
V
I
<
−0.5
V
V
O
<
−0.5
V or V
O
> V
CC
+ 0.5 V
V
O
=
−0.5
V to (V
CC
+ 0.5 V)
[1]
[1]
−20
−20
−25
-
−75
−65
T
amb
=
−40 °C
to +125
°C
[2]
-
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For SO16 packages: above 70
°C
the value of P
tot
derates linearly at 8 mW/K.
For TSSOP16 packages: above 60
°C
the value of P
tot
derates linearly at 5.5 mW/K.
74AHC_AHCT139_2
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 02 — 9 May 2008
4 of 14
Nexperia
74AHC139; 74AHCT139
Dual 2-to-4 line decoder/demultiplexer
8. Recommended operating conditions
Table 5.
74AHC139
V
CC
V
I
V
O
T
amb
∆t/∆V
supply voltage
input voltage
output voltage
ambient temperature
input transition rise and fall rate
V
CC
= 3.0 V to 3.6 V
V
CC
= 4.5 V to 5.5 V
74AHCT139
V
CC
V
I
V
O
T
amb
∆t/∆V
supply voltage
input voltage
output voltage
ambient temperature
input transition rise and fall rate
V
CC
= 4.5 V to 5.5 V
4.5
0
0
−40
-
5.0
-
-
+25
-
5.5
5.5
V
CC
+125
20
V
V
V
°C
ns/V
2.0
0
0
−40
-
-
5.0
-
-
+25
-
-
5.5
5.5
V
CC
+125
100
20
V
V
V
°C
ns/V
ns/V
Operating conditions
Conditions
Min
Typ
Max
Unit
Symbol Parameter
9. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
74AHC139
V
IH
HIGH-level
input voltage
V
CC
= 2.0 V
V
CC
= 3.0 V
V
CC
= 5.5 V
V
IL
LOW-level
input voltage
V
CC
= 2.0 V
V
CC
= 3.0 V
V
CC
= 5.5 V
V
OH
HIGH-level
V
I
= V
IH
or V
IL
output voltage
I
O
=
−50 µA;
V
CC
= 2.0 V
I
O
=
−50 µA;
V
CC
= 3.0 V
I
O
=
−50 µA;
V
CC
= 4.5 V
I
O
=
−4.0
mA; V
CC
= 3.0 V
I
O
=
−8.0
mA; V
CC
= 4.5 V
V
OL
LOW-level
V
I
= V
IH
or V
IL
output voltage
I
O
= 50
µA;
V
CC
= 2.0 V
I
O
= 50
µA;
V
CC
= 3.0 V
I
O
= 50
µA;
V
CC
= 4.5 V
I
O
= 4.0 mA; V
CC
= 3.0 V
I
O
= 8.0 mA; V
CC
= 4.5 V
74AHC_AHCT139_2
Conditions
Min
1.5
2.1
3.85
-
-
-
1.9
2.9
4.4
2.58
3.94
-
-
-
-
-
25
°C
Typ
-
-
-
-
-
-
2.0
3.0
4.5
-
-
0
0
0
-
-
Max
-
-
-
0.5
0.9
1.65
-
-
-
-
-
0.1
0.1
0.1
0.36
0.36
−40 °C
to +85
°C −40 °C
to +125
°C
Unit
Min
1.5
2.1
3.85
-
-
-
1.9
2.9
4.4
2.48
3.80
-
-
-
-
-
Max
-
-
-
0.5
0.9
1.65
-
-
-
-
-
0.1
0.1
0.1
0.44
0.44
©
Min
1.5
2.1
3.85
-
-
-
1.9
2.9
4.4
2.40
3.70
-
-
-
-
-
Max
-
-
-
0.5
0.9
1.65
-
-
-
-
-
0.1
0.1
0.1
0.55
0.55
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 02 — 9 May 2008
5 of 14
嵌入式系统
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