1 Features
1• 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.

2 Applications
• Digital Radio
• Signal Gating
• Factory Automation
• Televisions
• Appliances
• Programmable Logic Circuits
• Sensors

3 Description
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.