CD54HCT4051 High Speed CMOS Logic Analog Multiplexers/Demultiplexers |

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High Speed CMOS Logic Analog Multiplexers/Demultiplexers



The CDx4HC405x and CDx4HCT405x devices are digitally controlled analog switches that use silicon gate CMOS technology to achieve operating speeds similar to LSTTL with the low-power consumption of standard CMOS integrated circuits.

These analog multiplexers and demultiplexers control analog voltages that may vary across the voltage supply range (for example, VCC to VEE). They are bidirectional switches that allow any analog input to be used as an output and vice versa. The switches have low ON resistance and low OFF leakages. In addition, all these devices have an enable control that, when high, disables all switches to their OFF state.


  • Wide Analog Input Voltage Range: ±5-V Maximum
  • Low ON-Resistance
    • 70-Ω Typical (VCC – VEE = 4.5 V)
    • 40-Ω Typical (VCC – VEE = 9 V)
  • Low Crosstalk Between Switches
  • Fast Switching and Propagation Speeds
  • Break-Before-Make Switching
  • Wide Operating Temperature Range:
    –55°C to +125°C
  • CD54HC and CD74HC Types
    • Operation Control Voltage: 2 V to 6 V
    • Switch Voltage: 0 V to 10 V
  • CD54HCT and CD74HCT Types
    • Operation Control Voltage: 4.5 V to 5.5 V
    • Switch Voltage: 0 V to 10 V
    • Direct LSTTL Input Logic Compatibility
      VIL = 0.8-V Max, VIH = 2-V Min
    • CMOS Input Compatibility
      II  ≤ 1 µA at VOL, VOH
  • On Products Compliant to MIL-PRF-38535,
    All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include Testing of All Parameters.

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Part number Order Configuration Number of channels (#) Ron (Typ) (Ohms) Bandwidth (MHz) Rating Operating temperature range (C) Package Group Input/output continuous current (Max) (mA) Supply current (Typ) (uA) Features ON-state leakage current (Max) (µA) CON (Typ) (pF)
CD54HCT4051 Order now 8:1     1     40     180     Military     -55 to 125     CDIP | 16     25     8     Break-before-make     1     25    
CD74HCT4051 Samples not available 8:1     1     40     180     Catalog     -55 to 125     PDIP | 16
SOIC | 16    
25     8     Break-before-make     1     25    
CD74HCT4051-Q1 Order now 8:1     1     40     180     Automotive     -40 to 125     SOIC | 16     25     8     Break-before-make     2     25