CD74HC4067/HCT4067 Analog MUX/DEMUX

CD74HC4067/HCT4067 Analog MUX/DEMUX

Texas Instruments' CD74HC4067 and CD74HCT4067 devices are digitally controlled analog switches that utilize silicon-gate CMOS technology. This achieves operating speeds similar to LSTTL with the low-power consumption of standard CMOS integrated circuits.

These analog multiplexers/demultiplexers control analog voltages that may vary across the voltage supply range. They are bidirectional switches thus allowing any analog input to be used as an output and vice-versa. The switches have low "on" resistance and low "off" leakages. In addition, these devices have an enable control which when high will disable all switches to their "off" state.

Features
  • Wide analog input voltage range
  • Low "ON" resistance
    • VCC = 4.5 V: 70 Ω (typical)
    • VCC = 6 V: 60 Ω (typical)
  • Fast switching and propagation speeds
  • "Break-before-make" switching: 6 ns (typical) at 4.5 V
  • Available in both narrow and wide-body plastic packages
  • Fanout (over-temperature range)
    • Standard outputs: 10 LSTTL loads
    • Bus driver outputs: 15 LSTTL loads
  • Wide operating temperature range: -55°C to 125°C
  • Balanced propagation delay and transition times
  • Significant power reduction compared to LSTTL logic ICs
  • HC types
    • 2 V to 6 V operation
    • High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5 V
  • HCT types
    • 4.5 V to 5.5 V operation
    • Direct LSTTL input logic compatibility, VIL = 0.8 V (maximum), VIH = 2 V (minimum)
    • CMOS input compatibility, Il 1 µA at VOL, VOH
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