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Semiconductor Components Industries, LLC, 2012
October, 2012 − Rev. 7
1 Publication Order Number:
MC74LCX139/D
MC74LCX139
Dual Low-Voltage CMOS
2-to-4 Decoder/Demultiplexer
With 5 V−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
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
MARKING
DIAGRAMS
SOIC−16
D SUFFIX
CASE 751B
TSSOP−16
DT SUFFIX
CASE 948F
16
1
16
1
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
ORDERING INFORMATION
http://onsemi.com
A = Assembly Location
WL, L = Wafer Lot
Y = Year
WW, W = Work Week
G or G = Pb−Free Package
LCX139G
AWLYWW
LCX
139
ALYWG
G
16
16
1
1
(Note: Microdot may be in either location)
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