MC74LCX139: Dual Low Voltage CMOS 2-of-4 Decoder/Demultiplexer

The MC74LCX139 is a high performance, 2-of-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 VI 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-of-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 24mA at the outputs.

Features
  • Designed for 2.3 to 3.6V VCC Operation
  • 5V Tolerant Inputs - Interface Capability With 5V TTL Logic
  • LVTTL Compatible
  • LVCMOS Compatible
  • 24mA Balanced Output Sink and Source Capability
  • Near Zero Static Supply Current (10µA) Substantially Reduces System Power Requirements
  • Latchup Performance Exceeds 500mA
  • ESD Performance: Human Body Model >2000V; Machine Model >200V
  • Pb-Free Packages are Available*
Simulation Models (2)
Document TitleDocument ID/SizeRevisionRevision Date
mc74lcx139d_c300.ibsMC74LCX139D_C300.IBS (47.0kB)0
mc74lcx139m_c300.ibsMC74LCX139M_C300.IBS (47.0kB)0
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SOIC 16 LEAD751B-05 (38.2kB)K
TSSOP-16948F-01 (41.7kB)B
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Dual Low-Voltage CMOS 2-of-4 Decoder/DemultiplexerMC74LCX139/D (156.0kB)7
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
MC74LCX139DGProduct PreviewPb-free Halide freeSOIC-16751B-051Tube48Contact BDTIC
MC74LCX139DR2GActivePb-free Halide freeSOIC-16751B-051Tape and Reel2500$0.24
MC74LCX139DTGActivePb-free Halide freeTSSOP-16948F-011Tube96$0.2319
MC74LCX139DTR2GActivePb-free Halide freeTSSOP-16948F-011Tape and Reel2500$0.2319
Specifications
ProductChannelsVCC Min (V)VCC Max (V)tpd Max (ns)IO Max (mA)
MC74LCX139DG223.66.224
MC74LCX139DR2G223.66.224
MC74LCX139DTG223.66.224
MC74LCX139DTR2G223.66.224
Dual Low-Voltage CMOS 2-of-4 Decoder/Demultiplexer (156.0kB) MC74LCX139
mc74lcx139d_c300.ibs MC74LCX139
mc74lcx139m_c300.ibs MC74LCX139
SOIC 16 LEAD MC14504B
TSSOP-16 MC14504B