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
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MARKING
DIAGRAMS
performance. A V specification of 5.5 V allows MC74LCX139 inputs
I
16
to be safely driven from 5 V devices. The MC74LCX139 is suitable
for memory address decoding and other TTL level bus oriented
applications.
SOIC−16
D SUFFIX
CASE 751B
LCX139
AWLYWW
16
1
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.
1
16
TSSOP−16
DT SUFFIX
CASE 948F
LCX
139
ALYW
16
1
Current drive capability is 24 mA at the outputs.
Features
1
• Designed for 2.3 to 3.6 V V Operation
CC
16
• 5 V Tolerant Inputs − Interface Capability With 5 V TTL Logic
• LVTTL Compatible
• LVCMOS Compatible
• 24 mA Balanced Output Sink and Source Capability
SOEIAJ−16
M SUFFIX
CASE 966
74LCX139
ALYW
16
1
1
• Near Zero Static Supply Current (10 mA) Substantially Reduces
System Power Requirements
A
L, WL
Y
= Assembly Location
= Wafer Lot
• Latchup Performance Exceeds 500 mA
= Year
• ESD Performance:
Human Body Model >2000 V
Machine Model >200 V
W, WW = Work Week
• Pb−Free Packages are Available*
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Semiconductor Components Industries, LLC, 2005
1
Publication Order Number:
January, 2005 − Rev. 3
MC74LCX139/D