MC74LCX257: Low Voltage CMOS Quad 2-Input Multiplexer

The MC74LCX257 is a high performance, quad 2-input multiplexer with 3-state outputs operating from a 2.3 to 3.6V supply. High impedanceTTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5V allows MC74LCX257 inputs to be safely driven from 5.0V devices.Four bits of data from two sources can be selected using the Select input. The four outputs present the selected data in the true(non-inverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the Output Enable (OEbar) input. Current drive capability is 24mA at the outputs.

Features
  • Designed for 2.3 to 3.6V VCC Operation
  • 5V Tolerant - Interface Capability With 5V TTL Logic
  • Supports Live Insertion and Withdrawal
  • IOFF Specification Guarantees High Impedance When VCC = 0V
  • LVTTL Compatible
  • LVCMOS Compatible
  • 24mA Balanced Output Sink and Source Capability
  • Near Zero Static Supply Current in All Three Logic States (10mA) 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 (3)
Document TitleDocument ID/SizeRevisionRevision Date
mc74lcx257d_c300.ibsMC74LCX257D_C300.IBS (63.0kB)0
mc74lcx257dt_c300.ibsMC74LCX257DT_C300.IBS (63.0kB)0
mc74lcx257m_c300.ibsMC74LCX257M_C300.IBS (63.0kB)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
Low-Voltage CMOS Quad 2-Input MultiplexerMC74LCX257/D (126.0kB)7
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
MC74LCX257DR2GActivePb-free Halide freeSOIC-16751B-051Tape and Reel2500$0.24
MC74LCX257DTGActivePb-free Halide freeTSSOP-16948F-011Tube96$0.2319
MC74LCX257DTR2GActivePb-free Halide freeTSSOP-16948F-011Tape and Reel2500$0.2319
Specifications
ProductChannelsVCC Min (V)VCC Max (V)tpd Max (ns)IO Max (mA)
MC74LCX257DR2G423.6624
MC74LCX257DTG423.6624
MC74LCX257DTR2G423.6624
Low-Voltage CMOS Quad 2-Input Multiplexer (126.0kB) MC74LCX257
mc74lcx257d_c300.ibs MC74LCX257
mc74lcx257dt_c300.ibs MC74LCX257
mc74lcx257m_c300.ibs MC74LCX257
SOIC 16 LEAD MC14504B
TSSOP-16 MC14504B