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MC74LCX139DR2

P1-P3P4-P6P7-P8
© Semiconductor Components Industries, LLC, 2005
August, 2005 − Rev. 4
1 Publication Order Number:
MC74LCX139/D
MC74LCX139
Dual Low−Voltage CMOS
2−to−4 Decoder/Demultiplexer
With 5V−Tolerant Inputs
The MC74LCX139 is a high performance, 2−to−4 decoder/
demultiplexer operating from a 2.3 to 3.6 V supply. High impedance
TTL compatible inputs significantly reduce current loading to input
drivers while TTL compatible outputs offer improved switching noise
performance. A V
I
specification of 5.5 V allows MC74LCX139 inputs
to be safely driven from 5 V devices. The MC74LCX139 is suitable
for memory address decoding and other TTL level bus oriented
applications.
The MC74LCX139 high−speed 2−to−4 decoder/demultiplexer
accepts two binary weighted inputs (A0, A1) and, when enabled,
provides four mutually exclusive active−LOW outputs. The LCX139
features an active low Enable input. All outputs will be HIGH unless
En is LOW. The LCX139 can be used as an 8−output demultiplexer by
using one of the active−LOW Enable inputs as the data input and the
other Enable input as a strobe. The Enable inputs which are not used
must be permanently tied to ground.
Current drive capability is 24 mA at the outputs.
Features
• Designed for 2.3 to 3.6 V V
CC
Operation
• 5 V Tolerant Inputs − Interface Capability With 5 V TTL Logic
• LVTTL Compatible
• LVCMOS Compatible
• 24 mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current (10 mA) Substantially Reduces
System Power Requirements
• Latchup Performance Exceeds 500 mA
• ESD Performance: Human Body Model >2000 V
Machine Model >200 V
• Pb−Free Packages are Available*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING
DIAGRAMS
A = Assembly Location
L, WL = Wafer Lot
Y = Year
W, WW = Work Week
SOIC−16
D SUFFIX
CASE 751B
LCX139
AWLYWW
LCX
139
ALYW
TSSOP−16
DT SUFFIX
CASE 948F
SOEIAJ−16
M SUFFIX
CASE 966
74LCX139
ALYW
16
1
16
16
1
1
1
6
1
16
1
1
6
1
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
ORDERING INFORMATION
http://onsemi.com
MC74LCX139
http://onsemi.com
2
13
14
15
16
9
10
11
125
4
3
2
1
8
7
6
Ea
A1a
A0a
GND
A1b
A0b
Eb
V
CC
Y0a
Y1a
Y2a
Y3a
Y0b
Y1b
Y2b
Y3b
Figure 1. Pin Assignment
TRUTH TABLE
Inputs Outputs
E A1 A0 Y0 Y1 Y2 Y3
HXXHHHH
LLLLHHH
LLHHLHH
LHLHHLH
LHHHHHL
PIN NAMES
Function
Address Inputs
Enable Inputs
Outputs
Pins
A0n−A1n
En
Y0n−Y3n
Figure 2. IEC Logic Diagram
A0a
A1a
Ea
A0b
A1b
1
Eb
Y0a
Y1a
Y2a
Y3a
Y0b
Y1b
Y2b
Y3b
ACTIVE−LOW
OUTPUTS
ADDRESS
INPUTS
ACTIVE−LOW
OUTPUTS
3
2
ADDRESS
INPUTS
13
14
15
4
5
6
7
12
11
10
9
4
Figure 3. Logic Diagram
Y0a
Y1a
Y2a
Y3a
Y0b
Y1b
Y2b
Y3b
5
6
7
12
11
10
9
15
14
13
1
2
3
A1a
A0a
Ea
A1b
A0b
Eb
2
1
EN
X/Y
1
0
2
3
0
1
DMUX
1
0
2
3
G
0
3
15
14
13
1
2
3
A1a
A0a
Ea
A1b
A0b
Eb
Y0a
Y1a
Y2a
Y3a
Y0b
Y1b
Y2b
Y3b
4
5
6
7
12
11
10
9
En
A0
A1
Y0
Y1
Y2
Y3
Figure 4. Expanded Logic Diagram
(1/2 of Device)
H = High Voltage Level;
L = Low Voltage Level;
Z = High Impedance State
MC74LCX139
http://onsemi.com
3
MAXIMUM RATINGS
Symbol Parameter Value Condition Unit
V
CC
DC Supply Voltage −0.5 to +7.0 V
V
I
DC Input Voltage −0.5 ≤ V
I
≤ +7.0 V
V
O
DC Output Voltage −0.5 ≤ V
O
≤ V
CC
+ 0.5 Output in HIGH or LOW State. (Note 1) V
I
IK
DC Input Diode Current −50 V
I
< GND mA
I
OK
DC Output Diode Current −50 V
O
< GND mA
+50 V
O
> V
CC
mA
I
O
DC Output Source/Sink Current ±50 mA
I
CC
DC Supply Current Per Supply Pin ±100 mA
I
GND
DC Ground Current Per Ground Pin ±100 mA
T
STG
Storage Temperature Range −65 to +150 °C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. I
O
absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Typ Max Unit
V
CC
Supply Voltage Operating
Data Retention Only
2.0
1.5
2.3 to 3.3 3.6
3.6
V
V
I
Input Voltage 0 5.5 V
V
O
Output Voltage (HIGH or LOW State) 0 V
CC
V
I
OH
HIGH Level Output Current V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
V
CC
= 2.3 V − 2.7 V
−24
−12
−8
mA
I
OL
LOW Level Output Current V
CC
= 3.0 V − 3.6 V
V
CC
= 2.7 V − 3.0 V
V
CC
= 2.3 V − 2.7 V
+24
+12
+8
mA
T
A
Operating Free−Air Temperature −40 +85 °C
Dt/DV
Input Transition Rise or Fall Rate, V
IN
from 0.8 V to 2.0 V, V
CC
= 3.0 V 0 10 ns/V
ORDERING INFORMATION
Device Package Shipping
†
MC74LCX139D SOIC−16 48 Units / Rail
MC74LCX139DR2 SOIC−16 2500 Tape & Reel
MC74LCX139DR2G SOIC−16
(Pb−Free)
2500 Tape & Reel
MC74LCX139DT TSSOP−16* 96 Units / Rail
MC74LCX139DTR2 TSSOP−16* 2500 Tape & Reel
MC74LCX139M SOEIAJ−16 48 Units / Rail
MC74LCX139MEL SOEIAJ−16 2000 Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently Pb−Free.
P1-P3P4-P6P7-P8

MC74LCX139DR2

Mfr. #:
Buy MC74LCX139DR2
Manufacturer:
ON Semiconductor
Description:
Encoders, Decoders, Multiplexers & Demultiplexers 2-3.6V Dual 2 to 4
Lifecycle:
New from this manufacturer.
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