MC74LCX139 Datasheet, PDF (1/8 Pages) ON Semiconductor – Dual Low-Voltage CMOS 2-to-4 Decoder/Demultiplexer

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*
16
1
http://onsemi.com
MARKING
DIAGRAMS
16
SOIC−16
D SUFFIX
CASE 751B
LCX139
AWLYWW
1
16
16
1
TSSOP−16
DT SUFFIX
CASE 948F
LCX
139
ALYW
1
16
16
1
SOEIAJ−16
M SUFFIX
CASE 966
74LCX139
ALYW
1
A
L, WL
Y
W, WW
= Assembly Location
= Wafer Lot
= Year
= Work Week
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
January, 2005 − Rev. 3
Publication Order Number:
MC74LCX139/D