Page 1
Semiconductor
Dual 1-of-4 Decoder/Demultiplexer
High-Performance Silicon-Gate CMOS
The SL74HC139 is identical in pinout to the LS/ALS139. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
This device consists of two independent 1-of-4 decoders, each of
which decodes a two -bit Address to one-of-four active-low outputs.
Active-low Selects are provided to facilitate the demultiplexing and
cascading functions. The demultiplexing function is accomplished by
using the Address inputs to select the desired device output, and
utilizing the Select as a data input.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
TA = -55° to 125° C for all packages
SL74HC139
ORDERING INFORMATION
SL74HC139N Plastic
SL74HC139D SOIC
LOGIC DIAGRAM
PIN 16 =V
PIN 8 = GND
CC
PIN ASSIGNMENT
FUNCTION TABLE
Inputs Outputs
Select A1 A0 Y0 Y1 Y2 Y3
H X X H H H H
L L L L H H H
L L H H L H H
SLS
L H L H H L H
L H H H H H L
X = don’t care
System Logic
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SL74HC139
Semiconductor
MAXIMUM RATINGS*
Symbol Parameter Value Unit
VCC DC Supply Voltage (Referenced to GND) -0.5 to +7.0 V
VIN DC Input Voltage (Referenced to GND) -1.5 to VCC +1.5 V
V
DC Output Voltage (Referenced to GND) -0.5 to VCC +0.5 V
OUT
IIN DC Input Current, per Pin ±20 mA
I
DC Output Current, per Pin ±25 mA
OUT
ICC DC Supply Current, VCC and GND Pins ±50 mA
PD Power Dissipation in Still Air, Plastic DIP+
SOIC Package+
750
500
Tstg Storage Temperature -65 to +150 °C
TL Lead Temperature, 1 mm from Case for 10 Seconds
260 °C
(Plastic DIP or SOIC Package)
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C
SOIC Package: : - 7 mW/°C from 65° to 125°C
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
VCC DC Supply Voltage (Referenced to GND) 2.0 6.0 V
VIN, V
DC Input Voltage, Output Voltage (Referenced to GND) 0 VCC V
OUT
TA Operating Temperature, All Package Types -55 +125 °C
tr, tf Input Rise and Fall Time (Figure 1) VCC =2.0 V
VCC =4.5 V
V
=6.0 V
CC
0
0
0
1000
500
400
mW
ns
This device contains protection circuitry to guard against damage due to high static voltages or electric
fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated
voltages to this high-impedance circuit. For proper operation, VIN and V
GND≤(VIN or V
OUT
)≤VCC.
should be constrained to the range
OUT
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC).
Unused outputs must be left open.
System Logic
SLS
Page 3
SL74HC139
Semiconductor
DC ELECTRICAL CHARACTERISTICS(Voltages Referenced to GND)
VCC Guaranteed Limit
Symbol Parameter Test Conditions V 25 °C
to
-55°C
VIH Minimum High-Level
Input Voltage
VIL Maximum Low -Level
Input Voltage
VOH Minimum High-Level
Output Voltage
VIN=VIH or VIL
VOL Maximum Low-Level
Output Voltage
VIN=VIH or VIL
IIN Maximum Input
V
=0.1 V or VCC-0.1 V
OUT
I
≤ 20 µA
OUT
V
=0.1 V or VCC-0.1 V
OUT
I
≤ 20 µA
OUT
VIN=VIH or VIL
I
≤ 20 µA
OUT
I
≤ 4.0 mA
OUT
I
≤ 5.2 mA
OUT
VIN=VIH or VIL
I
≤ 20 µA
OUT
I
≤ 4.0 mA
OUT
I
≤ 5.2 mA
OUT
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
1.5
3.15
4.2
0.5
1.35
1.8
1.9
4.4
5.9
3.98
5.48
0.1
0.1
0.1
0.26
0.26
VIN=VCC or GND 6.0 ±0.1 ±1.0 ±1.0 µA
Leakage Current
≤85
°C
1.5
3.15
4.2
0.5
1.35
1.8
1.9
4.4
5.9
3.84
5.34
0.1
0.1
0.1
0.33
0.33
≤125
°C
1.5
3.15
4.2
0.5
1.35
1.8
1.9
4.4
5.9
3.7
5.2
0.1
0.1
0.1
0.4
0.4
Unit
V
V
V
V
ICC Maximum Quiescent
Supply Current
(per Package)
System Logic
SLS
VIN=VCC or GND
I
=0µA
OUT
6.0 4.0 40 160 µA
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SL74HC139
Semiconductor
AC ELECTRICAL CHARACTERISTICS(C
=50pF,Input tr=tf=6.0 ns)
L
VCC Guaranteed Limit
Symbol Parameter V 25 °C to
≤85°C ≤125°C Unit
-55°C
t
, t
t
t
PLH
PLH
TLH
Maximum Propagation Delay, Select to OutputY
PHL
(Figures 1 and 3)
, t
Maximum Propagation Delay , Input A to OutputY
PHL
(Figures 2 and 3)
, t
Maximum Output Transition Time, Any Output
THL
(Figures 1 and 3)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
115
23
20
115
23
20
75
15
13
145
29
25
145
29
25
95
19
16
175
35
30
175
35
30
110
22
19
CIN Maximum Input Capacitance - 10 10 10 pF
Power Dissipation Capacitance (Per Decoder) Typical @25°C,VCC=5.0 V
CPD Used to determine the no-load dynamic power
consumption:
PD=CPDV
2
f+ICCVCC
CC
55 pF
ns
ns
ns
Figure 1. Switching Waveforms Figu re 2. Switching Waveforms
System Logic
SLS
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SL74HC139
Semiconductor
Figure 3. Test Circuit
EXPANDED LOGIC DIAGRAM
(1/2 of Device)
SLS
System Logic
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